direction indicated on the drum rotation decal on the winch.
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Low Voltage Interrupt Your winch is equipped with a device that will interrupt winch function if the vehicle charging system voltage drops to a low level. The winch will not power-in or out for 30 seconds if this device is tripped. If the interrupt is tripped, the vehicle should be operated at high idle for a few minutes to allow the vehicle charging system to recover before continuing to winch. Winch Motor Thermal Protection Your winch is equipped with a thermal protection device in the motor. If the winch is operated for an excessive duration, the device may interrupt motor function to protect the winch motor. During this time the winch will power-out but will not power-in. Allow the winch motor to cool for a few minutes before continuing to winch. The winch will resume normal function once the motor cools.
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Understanding The Features Of Your Winch
Winch Components
1. Motor: The winch motor is powered by the vehicle charging system and features a thermal protection switch that automatically stops motor function in the power-in direction if the motor gets too hot. 2. Remote Socket: The remote socket allows the remote control to be attached to the control pack to allow the winch to function. 3. Winch Drum with Integral Brake: The winch drum allows the wire rope to be stored on the winch and transmits force to the wire rope. The winch is equipped with an integral brake that will stop rotation of the winch drum if the winch motor is stopped. 4. 3-Stage Planetary Gear Set: Provides balance between speed and pulling power. 5. Wire Rope: The wire rope allows the winch to be connected to an anchor to provide a pulling force.
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6. Clutch Lever: The clutch lever allows the winch drum to be disconnected from the winch motor to allow the wire rope to be pulled from the winch by hand. 7. Remote Control: The remote control provides the interface between the winch operator and the winch. The remote control provides the ability to power the winch in, out, and stop the winch. To operate the winch, the toggle switch is pressed down to power the winch in and up to power the winch out. The winch will stop if the switch is left in the neutral (center) position.
CAUTION!
If not installed, the hook strap must be placed on the hook.
Fairlead: The fairlead acts as a guide for the wire rope and minimizes damage to the rope.
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Winch Accessories
The following accessories are necessary to attach the winch to anchors, change direction of pull, and for safe winching.
Gloves: Wire rope, through use, will develop ⬙barbs⬙ which can slice skin. It is ex- tremely important to wear protective gloves while oper- ating the winch or handling the wire rope. Avoid loose fit- ting clothes or anything that could become entangled in the wire rope and other mov- ing parts.
Snatch/Block Pulley: Used properly, the multi-purpose snatch block allows you to (1) increase the winch’s pulling power; and (2) change your direction without pulling damaging the wire rope. Proper use of the snatch block is covered in ⬙Before You Pull.⬙
The Clevis/D-Shackles: D-Shackle is a safe means of connecting the looped ends of cables, and snatch blocks. The shackle’s pin is threaded to allow easy re- moval.
straps
Tree Trunk Protector: Typi- cally made of tough, high- quality nylon, it provides the operator an attachment point for the winch rope to a wide variety of anchor points and objects, as well as protect liv- ing trees.
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Operating Your Winch
WARNING!
when spooling wire rope in or out.
• Always use supplied hook strap to hold the hook • Never use as a hoist. • Never use to move persons. • Never exceed winch or wire rope rated capacity. • Always wear heavy leather gloves when handling • Never touch wire rope or hook while in tension or • Never engage or disengage clutch if winch is under load, wire rope is in tension, or wire rope drum is moving. • Always stand clear of wire rope and load and keep
the wire rope.
under load.
others away during winching.
(Continued)
314 STARTING AND OPERATING
WARNING! (Continued)
• Always keep hands and clothing clear of the wire rope, hook and fairlead opening during operation and when spooling. • Never wrap wire rope back onto itself. Always use a choker chain, wire choker rope or tree trunk protector on the anchor. • Never attach a recovery strap to the winch hook to • Never attempt to tow a vehicle with the recovery • Never use ⴖbungeeⴖ straps that develop tremen- dous and potentially dangerous amounts of force when stretched. • Always disconnect the remote control when not in
strap attached directly to the winch hook.
increase the length of a pull.
use.
(Continued)
WARNING! (Continued)
of wire rope around the winch drum.
• Never winch when there are less than five wraps • Always pass remote control through a window to avoid pinching lead in door, then using remote inside a vehicle. • Never leave the remote control plugged into the winch while free spooling, rigging or sitting idle.
Failure to observe any of these warnings regarding proper winch usage may result in severe injury.
General Information Practice using your winch before you get stuck. Some key points to remember when using your winch are: 1. Always take your time to assess the situation and plan your pull carefully. 2. Always take your time when using a winch. 3. Use the right equipment for the situation. 4. Always wear leather gloves and do not allow the wire rope to slip through your hands when handling the rope. 5. Only the operator should handle the wire rope and remote control. 6. Think safety at all times.
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Vehicle Recovery Using the Winch
CAUTION!
• Always Know Your Winch: Take the time to fully read and understand the included Installation and Operations Guide, and Basic Guide to Winching Techniques, in order to understand your winch and the winching operation. • Always inspect winch installation and wire rope condition before operating the winch. Frayed, kinked or damaged wire rope must be replaced immediately. Loose or damaged winch installation must be corrected immediately. • Always be sure any element which can interfere with safe winching operations is removed prior to initiating winching.
(Continued)
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CAUTION! (Continued)
drum, wire rope and rigging.
• Always keep remote control lead clear of the • Inspect for cracks, pinches, frayed wires, or loose • Be careful not to pull the Winch Cable Collar through the rollers. Watch and listen to Winch for proper snugness.
connections. Replace if damaged.
1. Inspect the winch, winch mount, and wire rope for damage. Do not use the winch if the mount is loose or rope shows excessive wear or damage. 2. Put on gloves.
3. Disengage the clutch to allow free spooling of the winch drum, rotate the clutch lever on the winch to disengage. Freespooling conserves battery power.
4. Free the winch hook and attach the hook strap. Free the winch hook from its anchor point. Attach the hook strap to the hook (if not attached).
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Free Spool
Hook Strap
5. Pull the wire to the anchor point. Pull out enough wire rope to reach your anchor point. Be sure to keep a certain amount of tension on the wire as it can become twisted
318 STARTING AND OPERATING
and over-wrapped when slackened, leading to wire rope damage. To prevent losing the end, hold the hook strap while you work.
6. Secure to the anchor point. Once you have established your anchor point, secure the tree-trunk protector or choker-chain around the object.
Always be certain the anchor you select will with- stand the load.
Tree Trunk Protector
CAUTION!
NOTE: How to choose an anchor point: A secure anchor is critical to winching operations. An anchor must be strong enough to hold while winching. Natural an- chors include trees, stumps and rocks. Hook the cable as low as possible. If no natural anchors are available when recovering another vehicle, your vehicle becomes the anchor point. In this case, be sure to put the transmission in NEUTRAL, apply the hand brake and block its wheels to prevent your vehicle from moving. Ideally, you’ll want an anchor point that will enable you to pull straight in the direction the vehicle will move. This allows the wire rope to wind tightly and evenly onto the spooling drum. An anchor point as far away as possible will provide the winch with its greatest pulling power. 7. Attach the Clevis/D-shackle and Tree Trunk Protector. Attach the shackle to the two ends of the strap or chain and through the hook loop, being careful not to over tighten (tighten and back-off 1/2 turn).
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Clevis/D-Shackles
8. Lock the clutch. Lock the winch drum by rotating the clutch lever on the winch to engage. NOTE: Always ensure the clutch is fully engaged or disengaged.
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9. Connect the remote control to the winch control box, located behind the front bumper. Be careful not to let the remote control cord dangle in front of the winch. If you choose to control the winch from inside your vehicle, always pass the remote through a window to avoid pinching the cord in the door. Always disconnect the remote control when not in use.
10. Put wire rope under tension. Using the remote con- trol switch, slowly wind the wire rope until no slack remains. Once the wire rope is under tension, stand well clear of it and never step over it.
11. Check your anchor. Make sure all connections are secured and free of debris before continuing with the winching procedure.
12. Check wire rope. The wire rope should be neatly wound around the spooling drum. Improper winding can cause damage to the wire rope.
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13. In certain situations you may decide to throw a heavy blanket or similar object over the wire rope. A heavy blan- ket can absorb energy should the wire rope break. Place it on the wire rope midway be- tween the winch and the an- chor point. Do this before the wire rope is put under ten- sion. Do not approach or move the blanket once tension is applied. Do not allow it to get pulled into the fairlead. If it is necessary to move or remove the blanket, slack the tension on the wire rope first. 14. Establish ⴖno peopleⴖ zones: Make your intentions clear. Be sure that everyone in the immediate vicinity surrounding the winching operation is completely aware of your intentions before you pull. Declare where the spectators should not stand - never behind or in front of
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the vehicle and never near the wire rope or snatch block. Your situation may have other ⴖno peopleⴖ zones.
For additional assistance, the winched vehicle can be slowly driven while being pulled by the winch. Continue pulling until the vehicle is on stable ground. If you are able to drive the vehicle, the winching operation is complete.
No People Zones
15. Begin winching. With the winching vehicles engine on and light tension already on the wire rope, begin winching slowly and steadily. Be sure that the wire rope is winding evenly and tightly around the spooling drum.
Using The Remote Control
NOTE: • Avoid overheating the winch motor. For extended winching, stop at reasonable intervals to allow the winch motor to cool down. • What to look for under load: The wire rope must always spool onto the drum as indicated by the drum rotation decal on the winch. As you power-in, make sure the wire rope winds evenly and tightly on the drum. This prevents the outer wire wraps from draw- ing into the inner wraps, binding and damaging the wire rope. Avoid shock loads by using the control switch intermittently to take up wire rope slack. Shock loads can momentarily far exceed the winch and wire rope ratings. During side pulls the wire rope tends to stack up at one end of the drum. This stack can become
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large enough to cause serious damage to the winch. So, line up pulls as straight ahead as possible and stop winching if the wire rope comes close to the tie rods or mounting plate. To fix an uneven stack, spool out that section of the rope and reposition it to the opposite end of the drum, which will free up space for continued winching.
16. Secure vehicle. Once recovery of the vehicle’s is complete, be sure to secure the vehicle’s brakes and put the transmission in PARK. Release tension in the wire rope. 17. Disconnect the wire rope, and disconnect from the anchor.
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18. Rewind the wire rope. The person handling the wire rope should walk the rope in and not let it slide through the hand, control the winch at all times.
WARNING!
To prevent serious injury, NEVER put your fingers inside the hook area as you are powering-in.
NOTE: How to spool under no load: Arrange the remote control lead so it cannot be caught in the winch. Arrange the wire rope so it will not kink or tangle when spooled. Be sure any wire rope already on the spooling drum is wound tightly and evenly layered. Tighten and straighten the layer if necessary. Keep the wire rope under light tension and spool the wire rope back and onto the winch drum in even layers. Stop frequently to tighten and straighten the layers as necessary. Repeat this process until the winch hook is the same distance as the full length of the remote control from the winch. Pinch the hook between your thumb and forefinger and attach the hook strap. Hold the hook strap between the thumb and forefinger to keep tension on the wire rope. Walk the wire rope towards the fairlead, carefully spooling in the remaining wire rope. By pulsing the remote control switch. 19. Store the hook on the most outboard loop of the tow hook.
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Rigging Techniques
Various winching situations will require application of other winching techniques. These could range from too little distance to achieve maximum pull using straight line rigging, simply increasing pulling power, or main- taining a straight-line pulling situation. You will have to assess what technique is correct for your situation. Think ⬙safety⬙ at all times.
20. Disconnect the remote control. Disconnect the remote control cord from the control box and store in a clean and dry place. Winching operations are now complete. Put the cap on the solenoid plug-in. NOTE: Always store the remote control in a protected, clean, dry area.
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How to Change the Pulling Direction
Change Pulling Directions
All winching operations should have a straight line from the winch to the object being pulled. This minimizes the wire rope collecting on one side of the drum affecting pulling efficiency and damaging wire rope. A snatch block, secured to a point directly in front of the vehicle will enable you to change your pulling direction while still allowing the wire rope to be at 90° to wind properly onto the spooling drum. Increasing Pulling Power In some cases, you may find yourself needing more pulling power. The use of snatch blocks increases me- chanical advantage and that increases your pulling power.
Double Line
Because pulling power decreases with the number of layers of wire rope on the winch drum, you can use a snatch block to double line out more wire rope. This decreases the number of layers of wire rope on the drum, and increases pulling power. Start by feeding out enough wire rope to free the winch hook. Attach the hook to your
STARTING AND OPERATING 327
vehicle’s frame/tow hook and run the wire rope through a snatch block. Disengage the clutch and, using the snatch block, pull out enough wire to reach your anchor point. Do not attach the hook to the mounting kit. Secure to the anchor point with a tree trunk protector or choker chain. Attach the clevis/shackle. Attach the shackle to the two ends of the strap/chain, being careful not to over tighten (tighten and back-off 1/2 turn).
POWER STEERING The standard power steering system will give you good vehicle response and increased ease of maneuverability in tight spaces. The system will provide mechanical steering capability if power assist is lost. If for some reason the power assist is interrupted, it will still be possible to steer your vehicle. Under these condi- tions, you will observe a substantial increase in steering effort, especially at very low vehicle speeds and during parking maneuvers.
328 STARTING AND OPERATING
Increased noise levels at the end of the steering NOTE: wheel travel are considered normal and do not indicate that there is a problem with the power steering system. Upon initial start-up in cold weather, the power steering pump may make noise for a short amount of time. This is due to the cold, thick fluid in the steering system. This noise should be considered normal, and it does not in any way damage the steering system.
WARNING!
Continued operation with reduced power steering assist could pose a safety risk to yourself and others. Service should be obtained as soon as possible.
CAUTION!
Prolonged operation of the steering system at the end of the steering wheel travel will increase the steering fluid temperature and it should be avoided when possible. Damage to the power steering pump may occur.
Power Steering Fluid Check Checking the power steering fluid level at a defined service interval is not required. The fluid should only be checked if a leak is suspected, abnormal noises are apparent, and/or the system is not functioning as antici- pated. Coordinate inspection efforts through an autho- rized dealer. No chemical flushes should be used in any power steering system; only the approved lubricant may be used.
WARNING!
Fluid level should be checked on a level surface and with the engine off to prevent injury from moving parts and to ensure accurate fluid level reading. Do not overfill. Use only manufacturer’s recommended power steering fluid.
If necessary, add fluid to restore to the proper indicated level. With a clean cloth, wipe any spilled fluid from all surfaces. Refer to “Fluids, Lubricants, and Genuine Parts” in Section 7 for the correct fluid type.
PARKING BRAKE The foot-operated parking brake is positioned below the lower left corner of the instrument panel. To release the parking brake, pull the parking brake release handle.
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NOTE: The “Brake Warning Light” will come on and flash to indicate that the parking brake is applied. You must be sure that the parking brake is fully applied before leaving the vehicle.
Parking Brake
Be sure the parking brake is firmly set when parked and the shift lever is in the PARK position. When parking on
330 STARTING AND OPERATING
a hill, you should apply the parking brake before placing the shift lever in PARK, otherwise, the load on the transmission locking mechanism may make it difficult to move the shift lever out of PARK.
WARNING!
• Always fully apply the parking brake when leav- ing your vehicle, or it may roll and cause damage or injury. Also be certain to leave the transmission in PARK. Failure to do so may allow the vehicle to roll and cause damage or injury. • Never leave children alone in a vehicle. Leaving unattended children in a vehicle is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Do not leave the key in the ignition. A child could operate power win- dows, other controls, or move the vehicle.
(Continued)
WARNING! (Continued)
• Be sure the parking brake is fully disengaged before driving, failure to do so can lead to brake problems due to excessive heating of the rear brakes.
When parking on a hill, turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade. The parking brake should always be applied whenever the driver is not in the vehicle.
BRAKE SYSTEM If power assist is lost for any reason (for example, repeated brake applications with the engine off), the brakes will still function. However, you will experience a substantial increase in braking effort to stop the vehicle.
If either the front or rear hydraulic system loses normal braking capability, the remaining system will still func- tion with some loss of overall braking effectiveness. This will be evident by increased pedal travel during applica- tion, greater pedal force required to slow or stop, and activation of the “Brake Warning Light” and the “ABS Warning Light” (If Equipped) during brake use. 3500 Dual Rear Wheel Models Only The brake system power assist is provided by a hydro- boost unit which shares fluid with the power steering system. You may experience some clicking or hissing noises from the hydro-boost system during hard braking conditions. NOTE: Under cold temperatures, pedal effort will be higher than normal until the power steering fluid reaches operating temperature.
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Four-Wheel Anti-Lock Brake System
WARNING!
The Four-Wheel Anti-Lock Brake System contains sophisticated electronic equipment. It may be sus- ceptible to interference caused by improperly in- stalled or high output radio transmitting equipment. This interference can cause possible loss of anti-lock braking capability. Installation of such equipment should be performed by qualified professionals.
The Four-Wheel Anti-lock Brake System (ABS) is de- signed to aid the driver in maintaining vehicle control under adverse braking conditions. The system operates with a separate computer to modulate hydraulic pressure to prevent wheel lockup and help avoid skidding on slippery surfaces.
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The system’s pump motor runs during an ABS stop to provide regulated hydraulic pressure. The pump motor makes a low humming noise during operation. This is normal. The ABS conducts a low-speed selftest at about 10 mph (16 km/h). If you have your foot lightly on the brake while this test is occurring, you may feel slight pedal movement. The movement can be more apparent on ice and snow. This is normal. The ABS pump motor runs during the self-test at 10 mph (16 km/h) and during an ABS stop. The pump motor makes a low humming noise during operation. This is normal. When you are in a severe braking condition involving use of the ABS, you will experience some pedal drop as the vehicle comes to a complete stop. This is the result of the system reverting to the base brake system and is normal.
Engagement of the ABS may be accompanied by a pulsing sensation. You may also hear a clicking noise. These occurrences are normal, and indicate that the system is functioning. ABS Warning Light The ABS includes an amber warning light. When the light is illuminated, the ABS is not functioning. The system reverts to standard, non-anti-lock brakes.
WARNING!
• Pumping of the anti-lock brakes will diminish their effectiveness and may lead to an accident. Pumping makes the stopping distance longer. Just press firmly on your brake pedal when you need to slow down or stop.
(Continued)
WARNING! (Continued)
• The Anti-Lock Brake System (ABS) cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded.
• The ABS cannot prevent accidents,
including those resulting from excessive speed in turns, following another vehicle too closely, or hydro- planing. Only a safe, attentive, and skillful driver can prevent accidents. • The capabilities of an ABS-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.
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ELECTRONIC BRAKE CONTROL SYSTEM — IF EQUIPPED Your vehicle is equipped with an advanced electronic brake control system that includes Anti-Lock Brake Sys- tem (ABS), Traction Control System (TCS), Brake Assist System (BAS), HSA (Hill Start Assist), Electronic Roll Mitigation (ERM), Electronic Stability Program (ESP) and Trailer Sway Control (TSC). All six systems work to- gether to enhance vehicle stability and control in various driving conditions, and are commonly referred to as ESP. Anti-Lock Brake System (ABS)
The ABS aids the driver in maintaining vehicle control under adverse braking conditions. The system controls hydraulic brake pressure to prevent wheel lockup and help avoid skidding on slippery surfaces during braking. For more information about ABS, refer to “Anti-Lock Brake System” under “Brake System” in Section 5 of this manual.
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NOTE: ABS improves steering control of the vehicle during hard braking maneuvers.
WARNING!
• ABS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency beyond that af- forded by the condition of the vehicle brakes and tires or the traction afforded.
• The ABS cannot prevent accidents,
including those resulting from excessive speed in turns, following another vehicle too closely, or hydro- planing. Only a safe, attentive, and skillful driver can prevent accidents. • The capabilities of an ABS-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.
Traction Control System (TCS)
The TCS monitors the amount of wheel spin of each of the driven wheels. If wheel spin is detected, brake pressure is applied to the slipping wheel(s), and engine power is reduced to provide enhanced acceleration and stability. A feature of the TCS functions similar to a limited-slip differential and controls the wheel spin across a driven axle. If one wheel on a driven axle is spinning faster than the other, the system will apply the brake of the spinning wheel. This will allow more engine torque to be applied to the wheel that is not spinning. This feature remains active even if TCS and ESP are in the “Partial Off” mode. Refer to “Electronic Stability Pro- gram (ESP)” in this section of this manual. This brake pressure modulation transfers drive torque from slipping to non-slipping wheels to provide optimal forward traction.
Brake Assist System (BAS) The BAS is designed to optimize the vehicle’s braking capability during emergency braking maneuvers. The BAS detects an emergency braking situation by sensing the rate and amount of brake application and then applies optimum pressure to the brakes. The system applies optimum pressure to the brakes in emergency braking conditions. This can help reduce braking dis- tances. The BAS complements the ABS. Applying the brakes very quickly results in the best BAS assistance. To receive the benefit of BAS, you must apply continuous braking pressure during the stopping sequence. Do not reduce brake pedal pressure unless braking is no longer desired. Once the brake pedal is released, the BAS is deactivated.
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WARNING!
• The BAS cannot prevent the natural laws of phys- ics from acting on the vehicle, nor can it increase braking efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded.
• The BAS cannot prevent accidents,
including those resulting from excessive speed in turns, following another vehicle too closely, or hydro- planing. Only a safe, attentive, and skillful driver can prevent accidents. • The capabilities of a BAS-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.
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Hill Start Assist (HSA) The HSA system is designed to assist the driver in launching a vehicle on an incline. HSA will maintain the level of brake pressure the driver inputs for a short duration once the driver takes his foot off of the brake pedal. If the driver does not apply the throttle during this short duration, the system will release brake pressure and the vehicle will roll down the incline. The system will release brake pressure in proportion to the amount of throttle applied. During operation, Hill Start Assist will activate the brake control system and a clicking noise will occur. If your foot is on the brake pedal during operation you may feel a slight pedal movement. The clicking and pedal move- ment is normal and both will stop when HSA becomes inactive.
HSA Activation Criteria The following criteria must be met in order for HSA to activate: • Vehicle must be stopped • Vehicle must be on a 7% or greater incline • Gear selection matches vehicle uphill direction (i.e., vehicle facing uphill is in forward gear; vehicle back- ing uphill is in REVERSE gear).
WARNING!
There may be situations on minor hills (i.e., less than 7%), with a loaded vehicle, or while pulling a trailer where the system will not activate and slight rolling may occur, which could cause a collision with an- other vehicle or object. Always remember the driver is responsible for braking the vehicle.
The system will only work if the intended direction of the vehicle and vehicle gear match. For example, if the intended direction is forward up a hill and the vehicle is in DRIVE, and the activation criteria are met, HSA will activate. HSA on Automatic Transmission Vehicles The system will work in REVERSE and all forward gears on vehicles equipped with an automatic transmission. The system will not activate if the vehicle is placed in NEUTRAL.
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Towing and Hauling with HSA (Vehicles Equipped with Automatic Transmissions Only) The HSA system does not know if your vehicle is loaded or towing a trailer, unless the TOW/HAUL button, located on the shift lever, is selected. When activated, the TOW/HAUL light will illuminate in the instrument cluster. For more information on the TOW/HAUL mode, refer to “When To Use TOW/HAUL and O/D OFF Modes” under ⬙Automatic Transmission” in Section 5. In order to accommodate the extra weight entailed under towing and hauling conditions and to increase driver comfort while launching on a hill, the system recognizes when the TOW/HAUL button is activated and compen- sates by releasing brake pressure at a slower rate while throttle is applied in order to prevent the vehicle from rolling down the hill.
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WARNING!
• If you use a trailer brake controller with your trailer, your trailer brakes may be activated and deactivated with the brake switch. If so, when the brake pedal is released, there may not be enough brake pressure to hold the vehicle and trailer on a hill and this could cause a collision with another vehicle or object behind you. In order to avoid rolling down the incline while resuming accelera- tion, manually activate the trailer brake or apply more vehicle brake pressure prior to releasing the brake pedal. Always remember the driver is re- sponsible for braking the vehicle.
(Continued)
WARNING! (Continued)
• HSA is not a parking brake. If you stop the vehicle on a hill without putting the transmission in PARK or using the parking brake, it will roll down the incline and could cause a collision with an- other vehicle or object. Always remember to use the parking brake while parking on a hill, and that the driver is responsible for braking the vehicle.
HSA Off If you wish to turn off the HSA system, follow this procedure: 1. Start with the engine off, and vehicle in PARK with wheels straight. 2. Start the engine. 3. With the engine running, the brake applied, rotate the steering wheel 180° counterclockwise from center.
4. Press ESP button four times within twenty seconds. The “ESP/TCS Indicator Light” should appear and dis- appear four times. 5. Rotate the steering wheel 360° clockwise (180° clock- wise from center). 6. Cycle ignition switch OFF then ON. 7. If the sequence was completed properly, the “ESP/ TCS Indicator Light” will blink several times to confirm HSA is off. Steps 1-7 must be completed within 90 seconds to turn off HSA. Repeat steps 1-7 to re-enable HSA functionality. Electronic Roll Mitigation (ERM) The ERM system anticipates the potential for wheel lift by monitoring the driver’s steering wheel input and the speed of the vehicle. When ERM determines that the rate of change of the steering wheel angle and vehicle speed are sufficient to potentially cause wheel lift, it applies the
STARTING AND OPERATING 339
appropriate brake and may reduce engine power to lessen the chance that wheel lift will occur. ERM will only intervene during very severe or evasive driving maneu- vers. ERM can only reduce the chance of wheel lift occurring during severe or evasive driving maneuvers. It cannot prevent wheel lift due to other factors such as road conditions, leaving the roadway or striking objects or other vehicles.
WARNING!
Many factors, such as vehicle loading, road condi- tions and driving conditions, influence the chance that wheel lift or rollover may occur.
(Continued)
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WARNING! (Continued)
• ERM cannot prevent all wheel lift or rollovers, especially those that involve leaving the roadway or striking objects or other vehicles. Only a safe, attentive, and skillful driver can prevent accidents. • The capabilities of an ERM-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.
Electronic Stability Program (ESP)
The ESP system enhances directional control and stability of the vehicle under various driving conditions. ESP corrects for oversteering or understeering of the vehicle by applying the brake of the appropriate wheel to assist in counteracting the oversteer or understeer condition. Engine power may also be reduced to help the vehicle maintain the desired path.
ESP uses sensors in the vehicle to determine the vehicle path intended by the driver and compares it to the actual path of the vehicle. When the actual path does not match the intended path, ESP applies the brake of the appropri- ate wheel to assist in counteracting the oversteer or understeer condition. • Oversteer - when the vehicle is turning more than • Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
appropriate for the steering wheel position.
ESP/TCS Indicator Light
The “ESP/TCS Indicator Light” located in the instrument cluster, starts to flash as soon as the tires lose traction and the ESP system becomes active. The “ESP/TCS Indicator Light” also flashes when TCS is active. If the “ESP/TCS Indicator Light” begins to flash during acceleration, ease up on the
accelerator and apply as little throttle as possible. Be sure to adapt your speed and driving to the prevailing road conditions.
WARNING!
• ESP (Electronic Stability Program) cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase the traction afforded by prevailing road conditions. • ESP cannot prevent accidents, including those resulting from excessive speed in turns, driving on slippery surfaces, or hydroplaning. Only a safe, attentive, and skillful driver can prevent accidents. • The capabilities of an ESP-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.
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The ESP system has multiple operating modes depend- ing on vehicle type: Two-Wheel Drive (2WD) or Four- Wheel Drive (4WD). Four-wheel drive vehicles may be equipped with either a four-mode position (2WD/4WD LOCK/4WD LOW/Neutral) transfer case or a five-mode position (2WD/4WD AUTO/4WD LOCK/4WD LOW/ Neutral) transfer case. If you have a four-wheel drive vehicle, and want to determine which transfer case is on your vehicle and how to operate it, refer to the “Four Wheel Drive Operation” in this section. All 2WD vehicles and 4WD vehicles in 2WD, AUTO or 4HI Modes can choose the following ESP operating modes:
ESP On This is the normal operating mode for ESP in 2WD/ AUTO/4HI Modes and in 2WD vehicles. Whenever the vehicle is started, or the transfer case (if equipped) is shifted from 4WD LO or Neutral, back to 4WD LOCK or
342 STARTING AND OPERATING
AUTO, the ESP system will be in this mode. This mode should be used for almost all driving situations. ESP should only be turned to “Partial Off” or “ESP Off” for specific reasons as noted below.
ESP OFF Switch
ESP Partial Off This mode is entered by momentarily depressing the ESP OFF switch. When in ⬙Partial Off⬙ mode, the TCS portion of ESP, except for the “limited slip” feature described in the TCS section, has been disabled and the ⬙ESP/TCS Indicator Light⬙ will be illuminated. All other stability features of ESP function normally. This mode is intended to be used if the vehicle is in deep snow, sand, or gravel conditions and more wheel spin than ESP would nor- mally allow is required to gain traction. To turn ESP on again, momentarily depress the ESP OFF switch. This will restore the normal “ESP On” mode of operation. NOTE: To improve the vehicle’s traction when driving with snow chains, or starting off in deep snow, sand or gravel, it may be desirable to switch to the “Partial Off” mode by pressing the ESP OFF switch. Once the situation requiring ESP to be switched to the “Partial Off” mode is
overcome, turn ESP back on by momentarily depressing the ESP OFF switch. This may be done while the vehicle is in motion.
WARNING!
In the “Partial Off” mode, the engine torque reduc- tion and stability features are desensitized. There- fore, the enhanced vehicle stability offered by ESP is unavailable.
All 4WD vehicles in Auto and 4HI Modes can also choose the following ESP operating mode. This is the only ESP operating mode in 4LO:
Full Off This mode is intended for off-road use when ESP stability features could inhibit vehicle maneuverability due to trail conditions. This mode is entered by depressing and holding the ESP OFF switch for five seconds when the
STARTING AND OPERATING 343
vehicle is stopped and the engine is running. After five seconds, the “ESP/TCS Indicator Light” will illuminate and the “ESP OFF” message will appear in the odometer. Press and release the trip odometer button located on the instrument cluster to clear this message. NOTE: The “ESP OFF” message will display and the audible chime will sound when the shift lever is placed into the PARK position from any other position, and then moved out of the PARK position. This will occur even if the message was previously cleared. In this mode, ESP and TCS, except for the “Limited Slip” feature described in the TCS section, are turned off until the vehicle reaches a speed of 40 mph (64 km/h). At 40 mph (64 km/h), the system returns to “Partial Off” mode, described above. When the vehicle speed drops below 35 mph (56 km/h), the ESP system shuts off. ESP is off at low vehicle speeds so that it will not interfere with off-road driving but ESP function returns to provide
344 STARTING AND OPERATING
the stability feature at speeds above 40 mph (64 km/h). The “ESP/TCS Indicator Light” will always be illumi- nated when ESP is off. To turn ESP on again, momen- tarily depress the ESP OFF switch. This will restore the normal “ESP On” mode of operation. “ESP Off” is the only operating mode for ESP in 4WD LOW. Whenever the vehicle is started in 4WD LOW or the transfer case (if equipped) is shifted from 4WD LOCK or Neutral, to 4WD LOW, the ESP system will be in this mode.
WARNING!
With the ESP switched off, the enhanced vehicle stability offered by ESP is unavailable. In an emer- gency evasive maneuver, the ESP system will not engage to assist in maintaining stability. “ESP Off” mode is intended for off-highway or off-road use, only.
ESP/BAS Warning Light and ESP/TCS Indicator Light The malfunction indicator for the ESP is combined with the BAS indicator. The “ESP/BAS Warning Light” and the “ESP/TCS Indicator Light” in the instrument cluster both come on when the ignition switch is turned to the ON position. They should both go out with the engine running. If the “ESP/BAS Warning Light” comes on continuously with the engine running, a malfunction has been detected in either the ESP or BAS system, or both. If this light remains on after several ignition cycles, and the vehicle has been driven several miles/kilometers at speeds greater than 30 mph (48 km/h), see your autho- rized dealer as soon as possible to have the problem diagnosed and corrected. NOTE: • The “ESP Indicator Light” and the “ESP/BAS Warning Light” come on momentarily each time the ignition switch is turned ON.
will be ON even if it was turned off previously.
• Each time the ignition is turned ON, the ESP System • The ESP Control System will make buzzing or clicking sounds when it is active. This is normal. The sounds will stop when ESP becomes inactive following the maneuver that caused the ESP activation.
TSC (Trailer Sway Control) The TSC system uses sensors in the vehicle to recognize an excessively swaying trailer and will take the appro- priate actions to attempt to stop the sway. The system may reduce engine power and apply the brake of the appropriate wheel(s) to counteract the sway of the trailer. TSC will become active automatically once an excessively swaying trailer is recognized. No driver action is re- quired. Note that TSC cannot stop all trailers from swaying. Always use caution when towing a trailer and follow the trailer tongue weight recommendations. Refer to “Trailer Towing” in Section 5 of this manual for more
STARTING AND OPERATING 345
information on towing a trailer with your vehicle. When TSC is functioning, the “ESP/TCS Indicator Light” will flash, the engine power may be reduced and you may feel the brakes being applied to individual wheels to attempt to stop the trailer from swaying. TSC is disabled when the ESP system is in the Partial Off or Full Off modes. TSC is only active in the default “ESP On” mode. TSC can be disabled by pressing the ESP OFF switch and entering “ESP Partial Off” mode. It is not active in the “ESP Partial Off” or “ESP Off” modes. Please refer to the ESP portion of this section for an explanation of the different ESP operating modes.
WARNING!
If TSC activates while driving, slow the vehicle down, stop at the nearest safe location, and adjust the trailer load to eliminate trailer sway.
346 STARTING AND OPERATING
TIRE SAFETY INFORMATION
Tire Markings
1 — U.S. DOT Safety Stan- dards Code (TIN) 2 — Size Designation 3 — Service Description
4 — Maximum Load
5 — Maximum Pressure 6 — Treadwear, Traction and Temperature Grades
NOTE: • P (Passenger) - Metric tire sizing is based on U.S. design standards. P-Metric tires have the letter “P” molded into the sidewall preceding the size designa- tion. Example: P215/65R15 95H. • European-Metric tire sizing is based on European design standards. Tires designed to this standard have the tire size molded into the sidewall beginning with the section width. The letter ⬙P⬙ is absent from this tire size designation. Example: 215/65R15 96H. • LT (Light Truck) - Metric tire sizing is based on U.S. design standards. The size designation for LT-Metric tires is the same as for P-Metric tires except for the letters “LT” that are molded into the sidewall preced- ing the size designation. Example: LT235/85R16. • Temporary spare tires are high-pressure compact spares designed for temporary emergency use only.
Tires designed to this standard have the letter “T” molded into the sidewall preceding the size designa- tion. Example: T145/80D18 103M.
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• High flotation tire sizing is based on U.S. design standards and it begins with the tire diameter molded into the sidewall. Example: 31x10.5 R15 LT.
Tire Sizing Chart
Size Designation:
EXAMPLE:
P = Passenger car tire size based on U.S. design standards ⴖ....blank....ⴖ = Passenger car tire based on European design standards LT = Light truck tire based on U.S. design standards T = Temporary spare tire 31 = Overall diameter in inches (in) 215 = Section width in millimeters (mm) 65 = Aspect ratio in percent (%)
— Ratio of section height to section width of tire
10.5 = Section width in inches (in) R = Construction code
— ⬙R⬙ means radial construction —⬙D⬙ means diagonal or bias construction
15 = Rim diameter in inches (in)
348 STARTING AND OPERATING
Service Description:
95 = Load Index
EXAMPLE:
— A numerical code associated with the maximum load a tire can carry
H = Speed Symbol
— A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions — The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits)
Load Identification:
ⴖ....blank....ⴖ = Absence of any text on the sidewall of the tire indicates a Standard Load (SL) tire Extra Load (XL) = Extra load (or reinforced) tire Light Load = Light load tire C, D, E = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load — Maximum load indicates the maximum load this tire is designed to carry Maximum Pressure — Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire
Tire Identification Number (TIN) The TIN may be found on one or both sides of the tire, however, the date code may only be on one side. Tires with white sidewalls will have the full TIN, including the date code, located on the white sidewall side of the tire.
STARTING AND OPERATING 349
Look for the TIN on the outboard side of black sidewall tires as mounted on the vehicle. If the TIN is not found on the outboard side, then you will find it on the inboard side of the tire.
DOT = Department of Transportation
— This symbol certifies that the tire is in compliance with the U.S. Department of Transportation tire safety standards and is approved for highway use
EXAMPLE:
DOT MA L9 ABCD 0301
MA = Code representing the tire manufacturing location (two digits) L9 = Code representing the tire size (two digits) ABCD = Code used by the tire manufacturer (one to four digits) 03 = Number representing the week in which the tire was manufactured (two digits)
—03 means the 3rd week.
01 = Number representing the year in which the tire was manufactured (two digits)
—01 means the year 2001
— Prior to July 2000, tire manufacturers were only required to have one number to represent the year
in which the tire was manufactured. Example: 031 could represent the 3rd week of 1981 or 1991
350 STARTING AND OPERATING
Tire Loading and Tire Pressure
Tire Placard Location NOTE: The proper cold tire inflation pressure is listed on the driver’s side B-Pillar.
Tire and Loading Information Placard
Tire and Loading Information Placard
This placard tells you important information about the: 1) number of people that can be carried in the vehicle 2) total weight your vehicle can carry 3) tire size designed for your vehicle 4) cold tire inflation pressures for the front, rear, and spare tires.
Loading The vehicle maximum load on the tire must not exceed the load carrying capacity of the tire on your vehicle. You will not exceed the tire’s load carrying capacity if you adhere to the loading conditions, tire size, and cold tire inflation pressures specified on the Tire and Loading Information placard and in the “Vehicle Loading” section of this manual. NOTE: Under a maximum loaded vehicle condition, gross axle weight ratings (GAWRs) for the front and rear axles must not be exceeded. For further information on GAWRs, vehicle loading, and trailer towing, refer to “Vehicle Loading” in this section. To determine the maximum loading conditions of your vehicle, locate the statement “The combined weight of occupants and cargo should never exceed XXX lbs or XXX kg” on the Tire and Loading Information placard.
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The combined weight of occupants, cargo/luggage and trailer tongue weight (if applicable) should never exceed the weight referenced here. Steps for Determining Correct Load Limit 1. Locate the statement “The combined weight of occu- pants and cargo should never exceed XXX lbs or XXX kg” on your vehicle’s placard. 2. Determine the combined weight of the driver and passengers that will be riding in your vehicle. 3. Subtract the combined weight of the driver and pas- sengers from XXX lbs or XXX kg. 4. The resulting figure equals the available amount of cargo and luggage load capacity. For example, if “XXX” amount equals 1,400 lbs (635 kg) and there will be five 150 lb (68 kg) passengers in your vehicle, the amount of
352 STARTING AND OPERATING
available cargo and luggage load capacity is 650 lbs (295 kg) (since 5 x 150 = 750, and 1400 – 750 = 650 lbs [295 kg]). 5. Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in step 4. 6. If your vehicle will be towing a trailer, load from your trailer will be transferred to your vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle.
NOTE: • The following table shows examples on how to calcu- late total load, cargo/luggage, and towing capacities of your vehicle with varying seating configurations and number and size of occupants. This table is for illustration purposes only and may not be accurate for the seating and load carry capacity of your vehicle. • For the following example, the combined weight of occupants and cargo should never exceed 865 lbs (392 kg).
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354 STARTING AND OPERATING
WARNING!
Safety
Overloading of your tires is dangerous. Overloading can cause tire failure, affect vehicle handling, and increase your stopping distance. Use tires of the recommended load capacity for your vehicle. Never overload them.
TIRES — GENERAL INFORMATION
Tire Pressure Proper tire inflation pressure is essential to the safe and satisfactory operation of your vehicle. Three primary areas are affected by improper tire pressure:
WARNING!
cause accidents.
sult in tire failure.
• Improperly inflated tires are dangerous and can • Under-inflation increases tire flexing and can re- • Over-inflation reduces a tire’s ability to cushion shock. Objects on the road and chuckholes can cause damage that result in tire failure. • Unequal tire pressures can cause steering prob- • Over-inflated or under-inflated tires can affect vehicle handling and can fail suddenly, resulting in loss of vehicle control.
lems. You could lose control of your vehicle.
(Continued)
WARNING! (Continued)
• Unequal tire pressures from one side of the ve- hicle to the other can cause the vehicle to drift to the right or left. • Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Economy Improper inflation pressures can cause uneven wear patterns to develop across the tire tread. These abnormal wear patterns will reduce tread life resulting in a need for earlier tire replacement. Under-inflation also increases tire rolling resistance and results fuel consumption. Ride Comfort and Vehicle Stability Proper tire inflation contributes to a comfortable ride. Over-inflation produces a jarring and uncomfortable ride.
in higher
STARTING AND OPERATING 355
Tire Inflation Pressures The proper cold tire inflation pressure is listed on the driver’s side “B” Pillar. Some vehicles may have Supplemental Tire Pressure Information for vehicle loads that are less than the maximum loaded vehicle condition. These pressure con- ditions will be found in the “Supplemental Tire Pressure Information” section of this manual. The pressure should be checked and adjusted as well as inspecting for signs of tire wear or visible damage at least once a month. Use a good quality pocket-type gauge to check tire pressure. DO NOT make a visual judgement when determining proper inflation. Radial tires may look properly inflated even when they are under-inflated.
356 STARTING AND OPERATING
CAUTION!
After inspecting or adjusting the tire pressure, al- ways reinstall the valve stem cap. This will prevent moisture and dirt from entering the valve stem, which could damage the valve stem.
Inflation pressures specified on the placard are always “cold tire inflation pressure.” Cold tire inflation pressure is defined as the tire pressure after the vehicle has not been driven for at least three hours, or driven less than 1 mile (1.6 km) after a three hour period. The cold tire inflation pressure must not exceed the maximum infla- tion pressure molded into the tire sidewall. Check tire pressures more often if subject to a wide range of outdoor temperatures, as tire pressures vary with temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per 12°F (7°C) of air temperature change. Keep this in mind when checking tire pressure inside a garage, especially in the Winter. Example: If garage temperature = 68°F (20°C) and the outside temperature = 32°F (0°C) then the cold tire inflation pressure should be increased by 3 psi (21 kPa), which equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition. Tire pressure may increase from 2 to 6 psi (13 to 40 kPa) during operation. DO NOT reduce this normal pressure build up or your tire pressure will be too low. Tire Pressures for High Speed Operation The manufacturer advocates driving at safe speeds within posted speed limits. Where speed limits or condi- tions are such that the vehicle can be driven at high speeds, maintaining correct tire inflation pressure is very important. Increased tire pressure and reduced vehicle
loading may be required for high-speed vehicle opera- tion. Refer to original equipment or an authorized tire dealer for recommended safe operating speeds, loading and cold tire inflation pressures.
WARNING!
High speed driving with your vehicle under maxi- mum load is dangerous. The added strain on your tires could cause them to fail. You could have a serious accident. Do not drive a vehicle loaded to the maximum capacity at continuous speeds above 75 mph (120 km/h).
STARTING AND OPERATING 357
Radial Ply Tires
WARNING!
Combining radial ply tires with other types of tires on your vehicle will cause your vehicle to handle poorly. The instability could cause an accident. Al- ways use radial ply tires in sets of four (or six, in case of trucks with dual rear wheels). Never combine them with other types of tires.
Cuts and punctures in radial tires are repairable only in the tread area because of sidewall flexing. Consult your authorized tire dealer for radial tire repairs. Tire Spinning When stuck in mud, sand, snow, or ice conditions, DO NOT spin your vehicle’s wheels faster than 30 mph (48 km/h) or for longer than 30 seconds continuously without stopping when you are stuck.
358 STARTING AND OPERATING
For additional information, refer to “Freeing A Stuck Vehicle” in Section 6.
WARNING!
Fast spinning tires can be dangerous. Forces gener- ated by excessive wheel speeds may cause tire dam- age or failure. A tire could explode and injure some- one. DO NOT spin your vehicle’s wheels faster than 30 mph (48 km/h) or for more than 30 seconds continuously when you are stuck, and do not let anyone near a spinning wheel, no matter what the speed.
Tread Wear Indicators Tread wear indicators are in the original equipment tires to help you in determining when your tires should be replaced.
1 — Worn Tire 2 — New Tire These indicators are molded into the bottom of the tread grooves. They will appear as bands when the tread depth becomes 1/16 in (2 mm). When the tread is worn to the tread wear indicators, the tire should be replaced.
Life of Tire The service life of a tire is dependent upon varying factors including, but not limited to: • Driving style • Tire pressure • Distance driven
WARNING!
Tires and the spare tire should be replaced after six years, regardless of the remaining tread. Failure to follow this warning can result in sudden tire failure. You could lose control and have an accident resulting in serious injury or death.
Keep dismounted tires in a cool, dry place with as little exposure to light as possible. Protect tires from contact with oil, grease, and gasoline.
STARTING AND OPERATING 359
Replacement Tires The tires on your new vehicle provide a balance of many characteristics. They should be inspected regularly for wear and correct cold tire inflation pressure. The manu- facturer strongly recommends that you use tires equiva- lent to the originals in size, quality and performance when replacement is needed. (Refer to the paragraph on “Tread Wear Indicators”). Refer to the “Tire and Loading Information” placard for the size designation of your tire. The service description and load identification will be found on the original equipment tire. Failure to use equivalent replacement tires may adversely affect the safety, handling, and ride of your vehicle. We recommend that you contact your original equipment or an autho- rized tire dealer with any questions you may have on tire specifications or capability.
360 STARTING AND OPERATING
WARNING!
• DO NOT use a tire, wheel size or rating other than that specified for your vehicle. Some combinations of unapproved tires and wheels may change sus- pension dimensions and performance characteris- tics, resulting in changes to steering, handling, and braking of your vehicle. This can cause unpredict- able handling and stress to steering and suspen- sion components. You could lose control and have an accident resulting in serious injury or death. Use only the tire and wheel sizes with load ratings approved for your vehicle. • NEVER use a tire with a smaller load index or capacity, other than what was originally equipped on your vehicle. Using a tire with a smaller load index could result in tire overloading and failure. You could lose control and have an accident.
(Continued)
WARNING! (Continued)
• Failure to equip your vehicle with tires having adequate speed capability can result in sudden tire failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different size may result in false speedometer and odometer read- ings.
SUPPLEMENTAL TIRE PRESSURE INFORMATION — IF EQUIPPED A light load vehicle condition is defined as two passen- gers [150 lbs (68 kg) each] plus 200 lbs (91 kg) of cargo. Cold tire inflation pressures for a lightly loaded vehicle will be found on the face of the driver’s door.
TIRE CHAINS Use “Class U” chains on 2500/3500 model trucks, or other traction aids that meet SAE Type “U” specifica- tions. NOTE: Chains must be the proper size for the vehicle, as recommended by the chain manufacturer.
CAUTION!
To avoid damage to your vehicle, tires or chains, observe the following precautions: • Because of limited chain clearance between tires and other suspension components, it is important that only chains in good condition are used. Bro- ken chains can cause serious vehicle damage. Stop the vehicle immediately if noise occurs that could suggest chain breakage. Remove the damaged parts of the chain before further use.
(Continued)
STARTING AND OPERATING 361
CAUTION! (Continued)
vehicles.
bumps, especially with a loaded vehicle.
retighten after driving about 0.5 mile (0.8 km).
• Install chains as tightly as possible and then
• Do not exceed 45 mph (72 km/h).
• Drive cautiously and avoid severe turns and large
• Do not install tire chains on front wheels of 4x2
• Do not drive for a prolonged period on dry pave-
• Observe the tire chain manufacturer’s instructions
on method of installation, operating speed, and
conditions for usage. Always use the lower sug-
gested operating speed of the chain manufacturer
if different than the speed recommended by the
manufacturer.
ment.
362 STARTING AND OPERATING
These cautions apply to all chain traction devices, includ-
ing link and cable (radial) chains.
Tire chain use is permitted only on the rear tires of 4X2
model trucks.
NOTE:
• The use of class “U” chains is permitted on the front
and rear of 4X4, 2500 model trucks with LT245/
70R17E tires.
• The use of class “U” chains is permitted on the front
and rear of 4X4, 3500 model trucks with Dual Rear
Wheels and LT235/80R17E tires.
• On 4X2 2500/3500 model trucks, class “U” snow
chains are permitted on the rear wheels only of
vehicles equipped with LT245/70R17, LT265/70R17,
and LT235/80R17 size tires.
• On 4x4 2500/3500 SRW (Single Rear Wheel) model trucks, class “U” snow chains are permitted on the rear wheels only of vehicles equipped with LT265/70R17E.
CAUTION!
Do not use tire chains on 4x4 model trucks equipped with P265/70R17, LT275/70R17, P275/60R20, tires. There may not be adequate clearance for the chains and you are risking structural or body damage to your vehicle. Do not use tire chains on the 4X2 front wheels of 2500/3500 SRW (Single Rear Wheels) equipped with LT245/70R17, LT265/70R17 LT235/ 80R17 tires, or 4X4 front wheels equipped with LT265/70R17E. There may not be adequate clearance for the chains and you are risking structural or body damage to your vehicle.
SNOW TIRES Snow tires should be of the same size and type construc- tion as the front tires. Consult the manufacturer of the snow tire to determine any maximum vehicle speed requirement associated with the tire. These tires should always be operated at the vehicle maximum capacity inflation pressures under any load condition. While studded tires improve performance on ice, skid and traction capability on wet or dry surfaces may be poorer than that of non-studded tires. Some states pro- hibit studded tires; local laws should be checked before using these tire types.
therefore,
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TIRE ROTATION RECOMMENDATIONS Tires on the front and rear axles of vehicles operate at different loads and perform different steering, driving, and braking functions. For these reasons, they wear at unequal rates and develop irregular wear patterns. These effects can be reduced by timely rotation of tires. The benefits of rotation are especially worthwhile with ag- gressive tread designs such as those on ON/OFF Road type tires. Rotation will increase tread life, help to main- tain mud, snow, and wet traction levels, and contribute to a smooth, quiet ride.
364 STARTING AND OPERATING
Refer to the “Maintenance Schedule” in Section 8 for the proper maintenance intervals. More frequent rotation is permissible if desired. The reasons for any rapid or unusual wear should be corrected prior to rotation being performed.
NOTE: On Canadian vehicles only, if your vehicle is equipped with All-Season type tires on the front and ON/OFF Road type tires mounted on the rear, do not use a front-to-back rotation pattern. Instead, rotate your tires side-to-side at the recommended intervals.
Dual Rear Wheels
The tires used on dual wheel assemblies should be matched for wear to prevent overloading one tire in a set. To check if tires are even, lay a straight edge across all four tires. The straight edge should touch all the tires.
STARTING AND OPERATING 365
CAUTION!
3500 Dual Rear Tires have only one approved direc- tion of rotation. This is to accommodate the asym- metrical design (tread pattern) of the ON/OFF road tire and the use of Outline White Letter (OWL) tires. • When replacing a flat, the spare tire may have to be remounted on the rim, or installed at a different location, to maintain the correct placement of the tire on the wheel relative to the tire/wheel position on the truck. For example, if the spare is used to replace an outer rear tire it will have to be re- mounted on the rim so that the wheel is dished inward. That way the tread design of asymmetrical tires and the white writing of the OWL tires will maintain proper position.
366 STARTING AND OPERATING
TIRE PRESSURE MONITOR SYSTEM (TPMS) — IF EQUIPPED The Tire Pressure Monitoring System (TPMS) will warn the driver of a low tire pressure based on the vehicle recommended cold tire inflation placard pressure. The placard pressure is defined on the Tire and Loading Information label. The Tire and Loading Information label is located on the drivers side B-pillar. Vehicles equipped to be operated in either the “max load inflation pressure” condition described on the Tire and Loading Information label or the alternative “light load inflation pressure” condition described on the Supplemental Tire Pressure Information label, may also be equipped with a “Tire Light Load Inflation” switch to choose the appro- priate TPMS low pressure warning threshold levels based upon the vehicle load condition. The Supplemental Tire Pressure Information label is located on the rear face of the driver door. Operation of the “Tire Light Load Inflation” switch is described later in this manual section.
The tire pressure will vary with temperature by approxi- mately 1 psi (6.9 kPa) for every 12°F (6.5°C). This means that when the outside temperature decreases, the tire pressure will decrease. Tire pressure should always be set based on cold inflation tire pressure. This is defined as the tire pressure after a vehicle has not been driven for more than three hours, or driven less than 1 mile (1.6 km) after a three-hour period. For information on how to properly inflate the vehicle’s tires, refer to ”Tire Pressure” under “Tires – General Information” in this section. The tire pressure will also increase as the vehicle is driven - this is normal and there should be no adjustment for this increased pressure. The TPM System will warn the driver of a low tire pressure if the tire pressure falls below the low pressure warning threshold for any reason, including low tem- perature effects, or natural pressure loss through the tire.
The TPM System will continue to warn the driver of low tire pressure as long as the condition exists, and will not turn off until the tire pressure is at or above recom- mended cold placard pressure. Once the low tire pressure warning has been illuminated, the tire pressure must be increased to the recommended cold placard pressure in order for the TPMS warning light to be turned off. The system will automatically update and the TPMS warning light will extinguish once the updated tire pressures have been received. The vehicle may need to be driven for up to 20 minutes above 15 mph (25 km/h) to receive this information.
STARTING AND OPERATING 367
As an example, assume your vehicle has a recommended cold tire inflation placard pressure (parked for more than 3 hours) of 35 psi (241 kPa). If the ambient temperature is 68°F (20°C) and the measured tire pressure is 30 psi (207 kPa), a temperature drop to 20°F (-7°C) will decrease the tire pressure to approximately 26 psi (179 kPa). This tire pressure is sufficiently low enough to turn ON the “Tire Pressure Monitoring Telltale Light.” Driving the vehicle may cause the tire pressure to rise to approxi- mately 30 psi (207 kPa), but the “Tire Pressure Monitor- ing Telltale Light” will still be ON. In this situation, the “Tire Pressure Monitoring Telltale Light” will turn OFF only after the tires have been inflated to the vehicle’s recommended cold tire placard pressure value.
368 STARTING AND OPERATING
CAUTION!
• The TPMS has been optimized for the original equipment tires and wheels. TPMS pressures have been established for the tire size equipped on your vehicle. Undesirable system operation or sensor damage may result when using replacement equipment that is not of the same size, type, and/or style. After-market wheels can cause sensor dam- age. Do not use aftermarket tire sealants or balance beads if your vehicle is equipped with a TPMS, as damage to the sensors may result. • After inspecting or adjusting the tire pressure always reinstall the valve stem cap. This will prevent moisture and dirt from entering the valve stem, which could damage the Tire Pressure Moni- toring Sensor.
while adjusting your tire pressure.
NOTE: • The TPMS is not intended to replace normal tire care and maintenance, nor to provide warning of a tire failure or condition. • The TPMS should not be used as a tire pressure gauge • Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. • The TPMS is not a substitute for proper tire mainte- nance, and it is the driver’s responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the “Tire Pressure Monitoring Telltale Light.” • Seasonal temperature changes will affect tire pressure, and the TPM system will monitor the actual tire pressure in the tire.
Tire Pressure Monitor System (TPMS) Tire Light Load Inflation Switch Description – If Equipped
WARNING!
Never operate your vehicle with the TPMS and tire pressures set to the Light Load Inflation Pressure settings if carrying more than two occupants (150 lbs [68 kg] each) plus 200 pounds (91 kg) of cargo. The vehicle “Light Load Definition” is found in the Supplemental Tire Pressure Information Label which is located on the rear face of the driver door. Failure to do so may cause you to lose control resulting in an accident, causing serious or fatal injury.
The TPMS tire light load inflation switch will allow the driver to switch between the max load inflation pressure (cold) low pressure warning threshold and the light load inflation pressure (cold) low pressure warning threshold depending on the vehicle’s load condition. The Tire and Loading Information label defines the recommended front
STARTING AND OPERATING 369
and rear cold tire inflation pressures for the vehicle when operating in the Max Load condition. A Supplemental Tire Pressure Information label is also available defining Light Load tire inflation pressures when operating in the Light Load condition. When the tire light load inflation switch LED is ON, the TPMS is using the light load inflation pressure (cold) low inflation warning thresholds.
Tire Light Load Inflation Switch
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Tire Light Load Inflation Switch Operation – If Equipped • This vehicle may have different recommended tire pressure values between the front and rear tires as shown in both the Tire Loading Information Label and the Supplemental Tire Pressure Information Label. It is also equipped to be driven with tire pressures appro- priate to either a Light Load condition or the vehicle Max Load condition. • The tire light load inflation switch will allow the driver to change between the max load inflation pressure (cold) low pressure warning threshold and the light load inflation pressure (cold) low pressure warning threshold depending on the vehicle’s load condition. Refer to the “Supplemental Tire Pressure Information” label for the vehicle’s Light Load inflation pressures and “Tire and Loading Information” label for the vehicle’s Max Load inflation pressures.
Example Supplemental Tire Pressure Label
To switch from the max load inflation pressure (cold) low pressure warning threshold to the light load inflation pressure (cold) low pressure warning threshold, begin by placing the ignition switch in the RUN position. Next, lower all four road tire pressures to the Light Load Inflation Pressure values as listed on the Supplemental
Tire Pressure Information label. The Supplemental Tire Pressure Information label is located on the rear face of the driver door. Use an accurate tire gauge to check the tire pressures when lowering all four tire pressures. After all four tire pressures have been lowered to the Light Load inflation pressures, press the tire light load inflation switch. If the tire light load inflation switch’s amber colored LED turns ON, the TPMS is using the light load inflation pressure (cold) low pressure warning thresh- olds. If the tire light load inflation switch amber colored LED flashes on and off for 10 seconds, after all four tire pressures have been lowered to the Light Load inflation pressures, the pressure in any one of the four tires may not be at the light load inflation pressure (cold) values as indicated for the Light Load condition as defined on the Supplemental Tire Pressure Information label located on
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the rear face of the driver door. Using an accurate tire pressure gauge, re-check the tire pressures for the light load inflation pressure (cold) value.
WARNING!
It is the driver’s responsibility to change to the max load inflation pressure (cold) low pressure warning threshold condition when not driving in the light load condition as defined as two occupants (150 lbs [68 kg] each) plus 200 pounds (91 kg) of cargo. The vehicle “Light Load Definition” is found in the Supplemental Tire Pressure Information label lo- cated on the rear face of the driver door. Failure to do so may cause you to lose control resulting in an accident, causing serious or fatal injury.
To switch back to the max load inflation pressure (cold) low pressure warning threshold, press the tire light load inflation switch. It is not necessary to first fill the tires to
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the max load inflation pressure (cold) values to switch the TPMS system to the max load inflation pressure (cold) low pressure warning threshold. If after pressing the tire light load inflation switch, and tire pressures are below the max load inflation pressure (cold) low pressure warning thresholds, the TPMS low pressure warning telltale light (located in the instrument cluster) will turn ON and a chime will sound. The tire pressures are now required to be inflated to the max load inflation pressure (cold) values described on the Tire and Loading Informa- tion label. The Tire and Loading Information label is located on the drivers side B-pillar. If the tire light load inflation switch LED turns OFF, the TPMS has been reset and the TPMS is using the max load inflation pressure (cold) low pressure warning thresholds. Tire Pressure Monitor System Components The Tire Pressure Monitor System (TPMS) uses wireless technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each wheel as part of the valve stem, transmit tire pressure readings to the Receiver Module. It is particularly important, for you to check the NOTE: tire pressure in all of your tires regularly and to maintain the proper pressure. The Tire Pressure Monitoring System (TPMS) consists of the following components: • Receiver Module • Four Wheel Sensors • Two Trigger Modules (mounted in the front wheel- • Tire Light Load Inflation Switch (located in the instru- • Tire Pressure Monitoring Telltale Light
ment panel)
wells)
Tire Pressure Monitoring Low Pressure Warnings
The “Tire Pressure Monitoring Telltale Light” will illuminate in the instrument cluster, and an au- dible chime will be activated when one or more of the four active road tire pressures are low. Should this occur, you should stop as soon as possible, check the inflation pressure of each tire on your vehicle and inflate each tire to the vehicle’s recommended cold placard pressure value. The system will automatically update and the “Tire Pressure Monitoring Telltale Light” will extinguish once the updated tire pressures have been received. The vehicle may need to be driven for up to 20 minutes above 15 mph (25 km/h) to receive this information. Check TPMS Warnings The “Tire Pressure Monitoring Telltale Light” (located in the instrument cluster) will flash on and off for 75 sec- onds and will remain on solid when a system fault is detected. The system fault will also sound a chime. If the
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ignition key is cycled, this sequence will repeat, provid- ing the system fault still exists. A system fault can occur by any of the following scenarios: 1. Signal interference due to electronic devices or driving next to facilities emitting the same Radio Frequencies as the TPM sensors. 2. Installing aftermarket window tinting that affects ra- dio wave signals. 3. Accumulation of snow or ice around the wheels or wheel housings. 4. Using tire chains on the vehicle. 5. Using wheels/tires not equipped with TPM sensors. 6. Loss of communication with the trigger modules or tire pressure monitoring sensors. NOTE: Your vehicle is equipped with a non-matching full size spare wheel and tire assembly.
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1. This spare tire does not have a tire pressure monitor- ing sensor. Therefore, the TPMS will not monitor the tire pressure in the spare tire. 2. If you install the full size spare tire in place of a road tire that has a pressure below the low-pressure warning limit, upon the next ignition key cycle, a chime will sound and the “TPM Telltale Light” will still turn ON due to the low tire. 3. However, after driving the vehicle for up to 20 min- utes above 15 mph (25 km/h), the “TPM Telltale Light” will flash on and off for 75 seconds and then remain on solid. 4. For each subsequent ignition key cycle, a chime will sound and the “TPM Telltale Light” will flash on and off for 75 seconds and then remain on solid.
5. Once you repair or replace the original road tire, and reinstall it on the vehicle in place of the full size spare tire, the TPMS will update automatically and the “TPM Telltale Light” will turn OFF, as long as no tire pressure is below the low-pressure warning limit in any of the four active road tires. The vehicle may need to be driven for up to 20 minutes above 15 mph (25 km/h) in order for the TPMS to receive this information. General Information This device complies with part 15 of the FCC rules and RSS 210 of Industry Canada. Operation is subject to the following conditions: • This device may not cause harmful interference. • This device must accept any interference received, including interference that may cause undesired operation.
The tire pressure sensors are covered under one of the
following licenses:
United States . . . . . . . . . . . . . . . . . . . . . KR5S120123
Canada . . . . . . . . . . . . . . . . . . . . . . . . 2671-S120123
FUEL REQUIREMENTS
The 5.7L engine is designed to meet all emissions regulations and provide satisfac- tory fuel economy and performance when using high-quality unleaded gasoline hav- ing an octane range of 87 to 89. The manu- facturer recommends the use of 89 octane for optimum performance. The use of premium gasoline is not recommended, as it will not provide any benefit over regular gasoline in these engines. Light spark knock at low engine speeds is not harmful to your engine. However, continued heavy spark knock at high speeds can cause damage and immediate service is required.
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Poor quality gasoline can cause problems such as hard starting, stalling and hesitations. If you experience these symptoms, try another brand of “regular” gasoline be- fore considering service for the vehicle. Over 40 auto manufacturers worldwide have issued and endorsed consistent gasoline specifications (the World- wide Fuel Charter, WWFC) to define fuel properties necessary to deliver enhanced emissions, performance and durability for your vehicle. We recommend the use of gasolines that meet the WWFC specifications if they are available. Reformulated Gasoline Many areas of the country require the use of cleaner burning gasoline referred to as “Reformulated Gasoline” Reformulated gasolines contain oxygenates, and are spe- cifically blended to reduce vehicle emissions and im- prove air quality.
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The manufacturer supports the use of reformulated gaso- lines. Properly-blended reformulated gasolines will pro- vide excellent performance and durability of engine and fuel system components. Gasoline/Oxygenate Blends Some fuel suppliers blend unleaded gasoline with oxy- genates such as 10% ethanol, MTBE, and ETBE. Oxygen- ates are required in some areas of the country during the Winter months to reduce carbon monoxide emissions. Fuels blended with these oxygenates may be used in your vehicle.
CAUTION!
DO NOT use gasolines containing Methanol or E85
Ethanol. Use of these blends may result in starting
and drivability problems and may damage critical
fuel system components.
Problems that result from using methanol/gasoline or
E85 Ethanol blends are not the responsibility of the
manufacturer. While MTBE is an oxygenate made from
Methanol,
it does not have the negative effects of
Methanol.
E-85 Usage In Non-Flex Fuel Vehicles
Non-FFV vehicles are compatible with gasoline contain-
ing 10% ethanol (E10). Gasoline with higher ethanol
content may void the vehicle’s warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
• operate in a lean mode
• OBD II “Malfunction Indicator Light” on
• poor engine performance
• poor cold start and cold drivability
• increased risk for fuel system component corrosion
To fix a Non-FFV vehicle inadvertently fueled once with E-85 perform the following: • drain the fuel tank (see your authorized dealer) • change the engine oil and oil filter • disconnect and reconnect the battery to reset the
engine controller memory
More extensive repairs will be required for prolonged exposure to E-85 fuel. MMT In Gasoline MMT is a manganese containing metallic additive that is blended into some gasoline to increase octane. Gasoline blended with MMT provides no performance advantage beyond gasoline of the same octane number without MMT. Gasoline blended with MMT reduces spark plug
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life and reduces emission system performance in some vehicles. The manufacturer recommends that gasoline without MMT be used in your vehicle. The MMT content of gasoline may not be indicated on the gasoline pump, therefore, you should ask your gasoline retailer whether or not the gasoline contains MMT. It is even more important to look for gasolines without MMT in Canada, because MMT can be used at levels higher than those allowed in the United States. MMT is prohibited in Federal and California reformulated gasoline. Materials Added To Fuel All gasolines sold in the United States are required to contain effective detergent additives. Use of additional detergents or other additives is not needed under normal conditions and would result in unnecessary cost. There- fore, you should not have to add anything to the fuel.
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Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s performance: • The use of leaded gas is prohibited by Federal law. Using leaded gasoline can impair engine performance, damage the emission control system. • An out-of-tune engine, or certain fuel or ignition malfunctions, can cause the catalytic converter to overheat. If you notice a pungent burning odor or some light smoke, your engine may be out of tune or malfunctioning and may require immediate service. Contact your authorized dealer for service assistance.
• When pulling a heavy load or driving a fully-loaded vehicle when the humidity is low and the temperature is high, use a premium unleaded fuel to help prevent spark knock. If spark knock persists, lighten the load, or engine piston damage may result. • The use of fuel additives which are now being sold as octane enhancers is not recommended. Many of these products contain high concentrations of methanol. Fuel system damage or vehicle performance problems resulting from the use of such fuels or additives is not the responsibility of the manufacturer.
NOTE: systems can result against you.
Intentional tampering with emissions control in civil penalties being assessed
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly. Follow the precautions below to prevent carbon monoxide poisoning: • Do not inhale exhaust gases. They contain carbon monoxide, a colorless and odorless gas which can kill. Never run the engine in a closed area, such as a garage, and never sit in a parked vehicle with the engine running for an extended period. If the vehicle is stopped in an open area with the engine running for more than a short period, adjust the ventilation system to force fresh, outside air into the vehicle. • Guard against carbon monoxide with proper mainte- nance. Have the exhaust system inspected every time
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the vehicle is raised. Have any abnormal conditions repaired promptly. Until repaired, drive with all side windows fully open.
ADDING FUEL The fuel tank filler tube has a restricting door about 2 in (50 mm) inside the opening. If using a portable fuel container, it should have a flexible nozzle long enough to force open the restricting door.
CAUTION!
• Damage to the fuel system or emissions control system could result from using an improper fuel tank filler tube cap (gas cap). A poorly fitting cap could let impurities into the fuel system. Also, a poorly-fitted aftermarket cap can cause the MIL (Malfunction Indicator Light) to illuminate due to fuel vapors escaping from the system.
(Continued)
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CAUTION! (Continued)
• A poorly fitting gas cap may cause the MIL to turn • To avoid fuel spillage and overfilling, do not “top
on.
off” the fuel tank after filling.
NOTE: Tighten the gas cap 1/4 turn until you hear one click. This is an indication that the cap is properly tightened. If the gas cap is not tightened properly, the Malfunction Indicator Light will come on, Be sure the gas cap is tightened every time the vehicle is refueled.
NOTE: When the fuel nozzle “clicks” or shuts off the fuel tank is full.
WARNING!
WARNING!
• Never have any smoking materials lit in or near the vehicle when the gas cap is removed or the tank filled. • Never add fuel to the vehicle when the engine is running. This is in violation of most state and federal fire regulations and will cause the MIL to turn on.
A fire may result if gasoline is pumped into a portable container that is inside of a vehicle. You could be burned. Always place gas containers on the ground while filling.
Loose Fuel Filler Cap (Gas Cap) Message
If the vehicle’s diagnostic system determines that the fuel filler cap in loose, improperly installed or damaged, a GASCAP message will be displayed in the instrument cluster. Tighten the gas cap until a “clicking” sound is heard. This is an indication that the gas cap is properly tightened. Press the odometer reset button to turn the message off. If the problem persists, the message will appear the next time the vehicle is started. This might indicate a damaged cap. If the problem is detected twice in a row, the system will turn on the MIL. Resolving the problem will turn the MIL off.
VEHICLE LOADING
Certification Label As required by National Highway Traffic Safety Admin- istration regulations, your vehicle has a certification label affixed to the driver’s side door or pillar.
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This label contains the month and year of manufacture, Gross Vehicle Weight Rating (GVWR), Gross Axle Weight Rating (GAWR) front and rear, and Vehicle Identification Number (VIN). A Month-Day-Hour (MDH) number is included on this label and indicates the Month, Day and