control of the vehicle in difficult driving conditions. Both systems turn on automatically every time the vehicle is started.
To turn off traction control, press and release 5 on the instrument panel. F illuminates and the appropriate DIC message displays. See Ride Control System Messages on page 5‑42. To turn off both traction control and StabiliTrak, press and hold 5 until F illuminates and the appropriate DIC message displays. See Ride Control System Messages on page 5‑42.
In Brief
1-27
. Press and release 5 again to
turn on both systems. For more information, see StabiliTrak® System on page 9‑52.
Tire Pressure Monitor This vehicle may have a Tire Pressure Monitor System (TPMS).
The TPMS warning light alerts you to a significant loss in pressure of one of the vehicle's tires. If the warning light comes on, stop as soon as possible and inflate the tires to the recommended pressure shown on the Tire and Loading Information label. See Vehicle Load Limits on page 9‑22. The warning light will remain on until the tire pressure is corrected.
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1-28
In Brief
During cooler conditions, the low tire pressure warning light may appear when the vehicle is first started and then turn off. This may be an early indicator that the tire pressures are getting low and the tires need to be inflated to the proper pressure. The TPMS does not replace normal monthly tire maintenance. It is the driver’s responsibility to maintain correct tire pressures. See Tire Pressure Monitor System on page 10‑55.
Engine Oil Life System The engine oil life system calculates engine oil life based on vehicle use and, on most vehicles, displays a DIC message when it is necessary to change the engine oil and filter. The oil life system should be reset to 100% only following an oil change.
Resetting the Oil Life System To reset the Engine Oil Life System on most vehicles: 1. Display OIL LIFE REMAINING on the DIC. If the vehicle does not have DIC buttons, the vehicle must be in P (Park) to access this display.
2. Press and hold the SET/RESET
button on the DIC, or the trip odometer reset stem if the vehicle does not have DIC buttons, for more than five seconds. The oil life will change to 100%.
On all vehicles, the Engine Oil Life System can be reset as follows: 1. Turn the ignition to ON/RUN with
the engine off.
2. Fully press the accelerator pedal
slowly three times within five seconds.
3. Display OIL LIFE REMAINING
on the DIC. If the display shows 100%, the system is reset.
See Engine Oil Life System on page 10‑10.
Fuel E85 (85% Ethanol) Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑69. For all other vehicles, use only the unleaded gasoline described under Recommended Fuel on page 9‑68.
Driving for Better Fuel Economy Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. . Avoid fast starts and accelerate
smoothly.
. Brake gradually and avoid
abrupt stops.
. Avoid idling the engine for long
periods of time.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (29,1)
. When road and weather
conditions are appropriate, use cruise control.
. Always follow posted speed
limits or drive more slowly when conditions require.
. Keep vehicle tires properly
inflated.
. Combine several trips into a
single trip.
. Replace the vehicle's tires with
the same TPC Spec number molded into the tire's sidewall near the size. Follow recommended scheduled maintenance.
Roadside Assistance
Program
U.S.: 1-800-243-8872
TTY Users (U.S.): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0800
As the owner of a new Chevrolet,
you are automatically enrolled in
the Roadside Assistance program.
See Roadside Assistance Program
(U.S. and Canada) on page 13‑7 or
Roadside Assistance Program
(Mexico) on page 13‑9 for more
information.
In Brief
1-29
Roadside Assistance and OnStar (U.S. and Canada) If you have an active OnStar subscription, press the Q button and the current GPS location will be sent to an OnStar advisor who will assess your problem, contact Roadside Assistance, and relay your exact location to get the help you need.
Online Owner Center (U.S. and Canada) The Online Owner Center is a complimentary service that includes online service reminders, vehicle maintenance tips, online owner manual, special privileges, and more. Sign up today at: www.chevyownercenter.com (U.S.) or www.gm.ca (Canada).
Chevrolet Tahoe/Suburban Owner Manual - 2011
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1-30
In Brief
OnStar®
OnStar uses several innovative technologies and live Advisors to provide a wide range of safety, security, navigation, diagnostics, and calling services.
Automatic Crash Response In a crash, built‐in sensors can automatically alert an OnStar Advisor who is immediately connected to the vehicle to see if you need help. How OnStar Service Works Q : This blue button connects you to a specially trained OnStar Advisor to verify your account information and to answer questions.
] : Push this red emergency button to get priority help from specially trained OnStar Emergency Advisors. X : Push this button for hands‐free, voice‐activated calling and to give voice commands for Turn‐by‐Turn Navigation. Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn‐by‐Turn Navigation, and Hands‐Free Calling are available on most vehicles. Not all OnStar services are available on all vehicles. For more information see the OnStar Owner's Guide or visit www.onstar.com (U.S.) or www.onstar.ca (Canada), contact OnStar at 1-888-4-ONSTAR (1‐888‐466‐7827) or TTY 1‐877‐248‐2080, or push Q to speak with an OnStar Advisor 24 hours a day, 7 days a week.
For a full description of OnStar services and system limitations, see the OnStar Owner's Guide in the glove box. OnStar service is subject to the OnStar Terms and Conditions included in the OnStar Glove Box Kit. OnStar service requires wireless communication networks and the Global Positioning System (GPS) satellite network. Not all OnStar services are available everywhere or on all vehicles at all times. OnStar service can’t work unless your vehicle is in a place where OnStar has an agreement with a wireless service provider for service in that area, and the wireless service provider has coverage, network capacity, reception, and technology compatible with OnStar service. Service involving location information about your vehicle can’t work unless GPS signals are available, unobstructed, and compatible with the OnStar
Chevrolet Tahoe/Suburban Owner Manual - 2011
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hardware. The vehicle has to have a working electrical system and adequate battery power for the OnStar equipment to operate. OnStar service may not work if the OnStar equipment isn’t properly installed or you haven’t maintained it and your vehicle is in good working order and in compliance with all government regulations. If you try to add, connect, or modify any equipment or software in your vehicle, OnStar service may not work. Other problems OnStar can’t control may prevent service to you, such as hills, tall buildings, tunnels, weather, electrical system design and architecture of your vehicle, damage to important parts of your vehicle in a crash, or wireless phone network congestion or jamming. See Radio Frequency Statement on page 13‑18 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310.
OnStar Steering Wheel Controls This vehicle may have a b g / c x Talk/Mute button that can be used to interact with OnStar Hands-Free Calling. See Steering Wheel Controls on page 5‑3 for more information. On some vehicles, the mute button can be used to dial numbers into voice mail systems, or to dial phone extensions. See the OnStar Owner's Guide for more information. Your Responsibility Increase the volume of the radio if the OnStar Advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Push Q and request a vehicle diagnostic
In Brief
1-31
check. If the light appears clear (no light is appearing), your OnStar subscription has expired and all services have been deactivated. Push Q to confirm that the OnStar equipment is active. OnStar® If the vehicle is equipped with an active OnStar system, that system may also record data in crash or near crash-like situations. The OnStar Terms and Conditions provides information on data collection and use and is available in the OnStar Glove Box Kit, at www.onstar.com (U.S.) or www.onstar.ca (Canada), or by pushing Q and speaking to an Advisor.
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1-32
In Brief
2 NOTES
Chevrolet Tahoe/Suburban Owner Manual - 2011
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Keys, Doors and Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE)
System Operation . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . 2-5
Door Locks . . . . . . . . . . . . . . . . . . . 2-8
Power Door Locks . . . . . . . . . . . . 2-8
Delayed Locking . . . . . . . . . . . . . . 2-9
Automatic Door Locks . . . . . . . . . 2-9
Lockout Protection . . . . . . . . . . . . 2-9
Safety Locks . . . . . . . . . . . . . . . . . . 2-9
Keys, Doors and Windows
2-1
Doors
Interior Mirrors
Liftgate (Power) . . . . . . . . . . . . . . 2-10
Liftgate (Manual) . . . . . . . . . . . . . 2-12
Power Assist Steps . . . . . . . . . . 2-14
Manual Rearview Mirror . . . . . . 2-20
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-20
Vehicle Security
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-21
Power Windows . . . . . . . . . . . . . 2-22
Sun Visors . . . . . . . . . . . . . . . . . . . 2-23
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-23
Vehicle Security . . . . . . . . . . . . . . 2-14
Anti-Theft Alarm System . . . . . 2-14
Immobilizer . . . . . . . . . . . . . . . . . . 2-15
Immobilizer Operation . . . . . . . 2-16
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-17
Manual Mirrors . . . . . . . . . . . . . . . 2-18
Trailer-Tow Mirrors . . . . . . . . . . . 2-18
Power Mirrors . . . . . . . . . . . . . . . . 2-18
Folding Mirrors . . . . . . . . . . . . . . . 2-19
Heated Mirrors . . . . . . . . . . . . . . . 2-19
Automatic Dimming Mirror . . . 2-20
Park Tilt Mirrors . . . . . . . . . . . . . . 2-20
Chevrolet Tahoe/Suburban Owner Manual - 2011
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2-2
Keys, Doors and Windows
Keys and Locks
Keys
{ WARNING
Leaving children in a vehicle with the ignition key is dangerous for many reasons. Children or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. The windows will function with the keys in the ignition and children could be seriously injured or killed if caught in the path of a closing window. Do not leave the keys in a vehicle with children.
The key is used for the ignition and all door locks. The key has a bar-coded key tag that the dealer or qualified locksmith can use to make new keys. Store this information in a safe place, not in the vehicle.
See your dealer if a replacement key or additional key is needed. Notice: If the keys get locked in the vehicle, it may have to be damaged to get them out. Always carry a spare key. If you are locked out of the vehicle, call the Roadside Assistance Center. See Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside Assistance Program (Mexico) on page 13‑9.
Remote Keyless Entry (RKE) System See Radio Frequency Statement on page 13‑18 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310.
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Keys, Doors and Windows
2-3
If there is a decrease in the RKE operating range: . Check the distance. The
transmitter may be too far from the vehicle.
. Check the location. Other vehicles or objects may be blocking the signal.
. Check the transmitter's battery.
See “Battery Replacement” later in this section. If the transmitter is still not working correctly, see your dealer or a qualified technician for service.
Remote Keyless Entry (RKE) System Operation The Remote Keyless Entry (RKE) transmitter functions work up to 60 m (195 ft) away from the vehicle. There are other conditions which can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2‑2.
With Remote Start and Liftglass
With Remote Start and Power
Liftgate and Liftglass
The following functions may be available if your vehicle has the RKE system: / (Remote Vehicle Start): For vehicles with this feature, press to start the engine from outside the vehicle using the RKE transmitter. See Remote Vehicle Start on page 2‑5 for additional information. Q (Lock): Press to lock all the doors. If enabled through the Driver Information Center (DIC), the turn signal lamps flash once to indicate locking has occurred. If enabled through the DIC, the horn chirps when the lock button is pressed again within three seconds. See Vehicle Personalization (With DIC Buttons) on page 5‑46 for additional information. Pressing Q arms the content theft‐ deterrent system. See Anti-Theft Alarm System on page 2‑14.
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2-4
Keys, Doors and Windows
K (Unlock): Press once to unlock only the driver door. If K is pressed again within three seconds, all remaining doors unlock. The interior lamps may come on and stay on for 20 seconds or until the ignition is turned on. If enabled through the DIC, the turn signal lamps flash twice to indicate unlocking has occurred. See Vehicle Personalization (With DIC Buttons) on page 5‑46. If enabled through the DIC, the exterior lights turn on briefly if it is dark enough outside. See “Approach Lighting” under Vehicle Personalization (With DIC Buttons) on page 5‑46. Pressing K on the RKE transmitter disarms the content theft‐deterrent system. See Anti-Theft Alarm System on page 2‑14. m (Liftglass): Press and hold to unlock the liftglass.
& (Power Liftgate): Press and hold to open and close the liftgate. The taillamps flash and a chime sounds to indicate when the liftgate is opening and closing. L (Vehicle Locator/Panic Alarm): Press and release to locate the vehicle. The turn signal lamps flash and the horn sounds three times. Press and hold L for more than two seconds to activate the panic alarm. The turn signal lamps flash and the horn sounds repeatedly for 30 seconds. The alarm turns off when the ignition is moved to ON/ RUN or L is pressed again. The ignition must be in LOCK/OFF for the panic alarm to work. The vehicle comes with two transmitters. Each transmitter will have a number on it, “1” or “2”. These numbers correspond to the driver of the vehicle. For example, the memory seat position
for driver 1 will be recalled when using the transmitter labeled “1”, if enabled through the DIC. See “Memory Seat, Mirrors, and Pedals” under Power Seat Adjustment on page 3‑4 and Vehicle Personalization (With DIC Buttons) on page 5‑46 for more information. Programming Transmitters to the Vehicle Only RKE transmitters programmed to this vehicle will work. If a transmitter is lost or stolen, a replacement can be purchased and programmed through your dealer. When the replacement transmitter is programmed to this vehicle, all remaining transmitters must also be reprogrammed. Any lost or stolen transmitters will no longer work once the new transmitter is programmed. The vehicle can have a maximum of eight transmitters programmed to it. See your dealer to program transmitters to the vehicle.
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Battery Replacement Replace the battery if the REPLACE BATTERY IN REMOTE KEY message displays in the DIC. See “REPLACE BATTERY IN REMOTE KEY” under Key and Lock Messages on page 5‑41 for additional information. Notice: When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter.
Keys, Doors and Windows
2-5
To replace the battery: 1. Separate the transmitter with a
flat, thin object, such as a flat head screwdriver.
Carefully insert the tool into the notch located along the parting line of the transmitter. Do not insert the tool too far. Stop as soon as resistance is felt. Twist the tool until the transmitter is separated.
2. Remove the old battery. Do not
3.
use a metal object. Insert the new battery, positive side facing down. Replace with a CR2032 or equivalent battery.
4. Snap the transmitter back
together.
Remote Vehicle Start If available, this feature allows you to start the engine from outside of the vehicle. It may also start up the vehicle's heating or air conditioning systems and rear window defogger. Normal operation of the system will return after the key is turned to the ON/RUN position. If the vehicle has an automatic climate control system, the climate control system will default to a heating or cooling mode depending on the outside temperatures. If the vehicle does not have an automatic climate control system, the system will turn on at the setting the vehicle was set to when the vehicle was last turned off.
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2-6
Keys, Doors and Windows
During a remote start, if the vehicle has an automatic climate control system and heated seats, the heated seats will turn on during colder outside temperatures and will shut off when the key is turned to ON/RUN. If the vehicle does not have an automatic climate control system, during remote start, manually turn the heated seats on and off. See Heated Front Seats on page 3‑9 for additional information. Laws in some communities may restrict the use of remote starters. For example, some laws may require a person using the remote start to have the vehicle in view when doing so. Check local regulations for any requirements on remote starting of vehicles. Do not use the remote start feature if the vehicle is low on fuel. The vehicle may run out of fuel.
If the vehicle has the remote start feature, the RKE transmitter functions will have an increased range of operation. However, the range may be less while the vehicle is running. There are other conditions which can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2‑2 for additional information. / (Remote Start): This button will be on the RKE transmitter if the vehicle has remote start. To start the vehicle using the remote start feature: 1. Aim the RKE transmitter at the
vehicle. 2. Press Q.
3.
Immediately press and hold / until the turn signal lamps flash. If you cannot see the vehicle's lamps, press and hold / for two to four seconds. When the vehicle starts, the parking lamps will turn on and remain on while the vehicle is running. The doors will be locked and the climate control system may come on. The engine will continue to run for 10 minutes. Repeat the steps for a 10-minute time extension. Remote start can be extended only once.
After entering the vehicle during a remote start, insert and turn the key to ON/RUN to drive the vehicle.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (7,1)
To cancel a remote start: . Aim the RKE transmitter at the vehicle and press and hold / until the parking lamps turn off. Turn on the hazard warning flashers. Turn the ignition on and then back off.
The vehicle can be remote started two separate times between driving sequences. The engine will run for 10 minutes after each remote start. Or, you can extend the engine run time by another 10 minutes within the first 10 minute remote start time frame, and before the engine stops.
Keys, Doors and Windows
2-7
Also, the engine will turn off during a remote vehicle start if the coolant temperature gets too high or if the oil pressure gets low. Remote Start Ready If the vehicle does not have the remote vehicle start feature, it may have the remote start ready feature. This feature allows your dealer to add the manufacturer's remote vehicle start feature. See your dealer to add the manufacturer's remote vehicle start feature to the vehicle.
For example, if Q and then / are pressed again after the vehicle has been running for 5 minutes, 10 minutes are added, allowing the engine to run for 15 minutes. The additional 10 minutes are considered a second remote vehicle start. Once two remote starts, or a single remote start with one time extension has been done, the vehicle must be started with the key. After the key is removed from the ignition, the vehicle can be remote started again. The vehicle cannot be remote started if the key is in the ignition, the hood is not closed, or if there is an emission control system malfunction and the check engine light is on.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (8,1)
2-8
Keys, Doors and Windows
Door Locks
{ WARNING Unlocked doors can be dangerous.
. Passengers, especially
children, can easily open the doors and fall out of a moving vehicle. When a door is locked, the handle will not open it. The chance of being thrown out of the vehicle in a crash is increased if the doors are not locked. So, all passengers should wear safety belts properly and the doors should be locked whenever the vehicle is driven.
. Young children who get into
unlocked vehicles may be unable to get out. A child can be overcome by extreme heat and can suffer permanent
(Continued)
WARNING (Continued)
injuries or even death from heat stroke. Always lock the vehicle whenever leaving it.
. Outsiders can easily enter through an unlocked door when you slow down or stop the vehicle. Locking the doors can help prevent this from happening.
There are several ways to lock and unlock the vehicle. From outside, use the Remote Keyless Entry (RKE) transmitter or the key in the driver door. From inside, use the power door locks or manual door locks. To lock or unlock the door with the manual locks, push down or pull up on the manual lock knob.
Power Door Locks With power door locks, the switches on the front doors can be used to lock and unlock the vehicle.
K (Unlock): Press to unlock the doors. Q (Lock): Press to lock the doors.
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Keys, Doors and Windows
2-9
Delayed Locking When locking the doors with the power lock switch and a door or the liftgate is open, the doors will lock five seconds after the last door is closed. You will hear three chimes to signal that the delayed locking feature is in use. Pressing the power lock switch twice will override the delayed locking feature and immediately lock all the doors. This feature will not operate if the key is in the ignition. You can program this feature using the Driver Information Center (DIC). See “Delay Door Lock” under Vehicle Personalization (With DIC Buttons) on page 5‑46.
Automatic Door Locks The vehicle may have an automatic lock/unlock feature. This feature can be programmed using the Driver Information Center (DIC).
See Vehicle Personalization (With DIC Buttons) on page 5‑46 for more information on DIC programming.
Lockout Protection If the driver side power door lock switch is pressed when the driver door is open and the key is in the ignition, all of the doors will lock and then the driver door will unlock. If the passenger side power door lock switch is pressed when the front passenger door is open and the key is in the ignition, all of the doors will lock and then the front passenger door will unlock.
Safety Locks The vehicle has rear door security locks to prevent passengers from opening the rear doors from the inside.
Open the rear doors to access the security locks on the inside edge of each door. To set the locks, insert a key into the slot and turn it to the horizontal position. The door can only be opened from the outside with the door unlocked. To return the door to normal operation, turn the slot to the vertical position.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (10,1)
2-10
Keys, Doors and Windows
Doors
Liftgate (Power)
Power Liftgate Operation
{ WARNING
Exhaust gases can enter the vehicle if it is driven with the liftgate, trunk/hatch open, or with any objects that pass through the seal between the body and the trunk/hatch or liftgate. Engine exhaust contains Carbon Monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death. If the vehicle must be driven with the liftgate, or trunk/hatch open:
. Close all of the windows. . Fully open the air outlets on
or under the instrument panel.
(Continued)
WARNING (Continued)
. Adjust the Climate Control
system to a setting that brings in only outside air and set the fan speed to the highest setting. See Climate Control System in the Index. . If the vehicle is equipped with
a power liftgate, disable the power liftgate function. For more information about carbon monoxide, see Engine Exhaust on page 9‑35.
On vehicles with a power liftgate the button is on the overhead console. The vehicle must be in P (Park) to use the power liftgate feature. & : Press the top of the button to open or close the power liftgate. OFF: Press the bottom of the button for manual operation of the power liftgate.
The taillamps will flash and a chime will sound when the power liftgate is moving.
{ WARNING
You or others could be injured if caught in the path of the power liftgate. Make sure there is no one in the way of the liftgate as it is opening and closing.
Notice: If you open the liftgate without checking for overhead obstructions such as a garage door, you could damage the liftgate or the liftgate glass. Always check to make sure the area above and behind the liftgate is clear before opening it.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (11,1)
The power liftgate can be power opened and closed in the following ways:
. Press and hold & on the
Remote Keyless Entry (RKE) transmitter until the liftgate starts moving. See Remote Keyless Entry (RKE) System Operation on page 2‑3.
. Press & on the overhead
console.
. Press the touchpad on the
outside liftgate handle.
Pressing the buttons, or touchpad switch a second time while the liftgate is moving reverses the direction. l : The liftgate can also be closed by pressing this button next to the liftgate latch. Press the button a second time during liftgate operation to reverse that operation.
Keys, Doors and Windows
2-11
The power liftgate may be temporarily disabled under extreme temperatures, or under low battery conditions. If this occurs, the liftgate can still be operated manually. If the transmission is shifted out of P (Park) while the power function is in progress, the liftgate power function will continue to completion. If the transmission is shifted out of P (Park) and the vehicle accelerates before the power liftgate latches closed, the liftgate may reverse to the open position. Cargo could fall out of the vehicle. Always make sure the power liftgate is closed and latched before you drive away. If you power open the liftgate and the liftgate support struts have lost pressure, the lamps will flash and a chime will sound. The liftgate will stay open temporarily, then slowly close. See your dealer for service before using the liftgate.
Obstacle Detection Features If the liftgate encounters an obstacle during a power open or close cycle, a warning chime will sound and the liftgate will automatically reverse direction to the full closed or open position. After removing the obstruction, the power liftgate operation can be used again. If the liftgate encounters multiple obstacles on the same power cycle, the power function will deactivate, and you must manually open or close the liftgate. The REAR ACCESS OPEN warning message in the Driver Information Center (DIC) will indicate that the liftgate is open. After removing the obstructions, manually open the liftgate to the full open position or close the liftgate to the fully closed and latched position. The liftgate will now resume normal power operation.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (12,1)
2-12
Keys, Doors and Windows
Pinch sensors are located on the sides of the liftgate. If an object is caught between the liftgate and the body and presses against this sensor, the liftgate will reverse direction and open fully. The liftgate will remain open until it is activated again or closed manually. Do not force the liftgate open or closed during a power cycle. Manual Operation of Power Liftgate To change the liftgate to manual operation, press the switch on the overhead console to the OFF position. With the power liftgate disabled and all of the doors unlocked, the liftgate can be manually opened and closed. To open the liftgate, press the touchpad on the handle on the outside of the liftgate, and lift the gate open. To close the liftgate, use the pull cup to lower the liftgate and
close. The liftgate latch will power close. Always close the liftgate before driving. If the RKE button or the power close button on the liftgate is pressed while power operation is disabled, the lamps will flash three times, but the liftgate will not move. It is not recommended that you drive with the liftgate open, however, if you must drive with the liftgate open, the liftgate should be set to manual operation by pressing the OFF switch on the center console. The liftgate has an electric latch. If the battery is disconnected or has low voltage, the liftgate will not open. The liftgate will resume operation when the battery is reconnected and charged. If the battery is properly connected with adequate voltage, the switch is not disabled, and the liftgate still will not function, your vehicle should be taken to a dealer for service.
Liftgate (Manual)
{ WARNING
It can be dangerous to drive with the liftglass or liftgate open because carbon monoxide (CO) gas can come into your vehicle. You cannot see or smell CO. It can cause unconsciousness and even death. If you must drive with the liftglass or liftgate open, or if electrical wiring or other cable connections must pass through the seal between the body and the liftglass or liftgate:
. Make sure all other windows
are shut.
. Turn the fan on your heating
or cooling system to its highest speed with the recirculation mode off. That will force outside air into your vehicle. See Climate Control
(Continued)
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Keys, Doors and Windows
2-13
WARNING (Continued)
Systems on page 9‑35 or Dual Automatic Climate Control System on page 8‑4.
. If you have air outlets on or under the instrument panel, open them all the way.
. If your vehicle has a power
liftgate, disable the power liftgate function.
See Engine Exhaust on page 9‑35.
Press K on the Remote Keyless Entry (RKE) transmitter or use the power door lock switches to unlock the liftgate. See Remote Keyless Entry (RKE) System Operation on page 2‑3.
On vehicles with a liftglass, press the button on the underside of the license pocket applique (A) to open it. The liftglass can also be opened by pressing m on the RKE transmitter. To open the entire liftgate, press the touchpad on the underside of the liftgate handle (B). The vehicle must be in PARK (P) to open the liftgate. To close the liftgate, use the pull cup or pull strap.
The liftgate or liftglass cannot be opened if the rear wipers are in motion. Attempting to open the liftgate or liftglass while the rear wipers are in motion will cause the release of the liftglass or liftgate to delay until the wipers are moved off the liftglass. Both the liftglass and liftgate have an electric latch. If the battery is disconnected or has low voltage, the liftglass and liftgate will not open. The liftglass and liftgate will resume operation when the battery is reconnected and charged.
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2-14
Keys, Doors and Windows
Power Assist Steps The vehicle may have power assist steps.
Vehicle Security This vehicle has theft-deterrent features; however, they do not make it impossible to steal.
Anti-Theft Alarm System Your vehicle has a content theft-deterrent alarm system.
The switch used to disable the power assist steps is located on the center console below the climate control system. The power assist steps automatically extend from beneath the vehicle on the side in which the door has been opened. Once the door is closed, the assist steps automatically move back under the vehicle after a brief delay. The vehicle must not be moving for the assist steps to extend or retract. The assist steps cannot be disabled in the extended position.
This is the security light. To arm the theft-deterrent system: 1. Open the door. 2. Lock the door with the Remote Keyless Entry (RKE) transmitter or the power door lock switch. The security light will come on to inform the driver the system is
arming. If a door is open when the doors are locked, the security light will flash. If the delayed locking feature is turned on, the theft‐deterrent system will not start the arming process until the last door is closed and the delay timer has expired. See Delayed Locking on page 2‑9.
3. Close all doors. The security light should go off after about 30 seconds. The alarm is not armed until the security light goes off.
If a locked driver door is opened without using the RKE transmitter, a 10-second pre-alarm will occur. The horn will chirp and the lights will flash. If the key is not placed in the ignition and turned to START or the door is not unlocked by pressing the unlock button on the RKE transmitter during the 10-second pre-alarm, the alarm will go off.
Chevrolet Tahoe/Suburban Owner Manual - 2011
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Keys, Doors and Windows
2-15
Your vehicle's headlamps will flash and the horn will sound for about 30 seconds, then will turn off to save the battery power. The theft-deterrent system will not activate if the doors are locked with the vehicle's key or the manual door lock. It activates only if you use the power door lock switch with the door open or the RKE transmitter. You should also remember that you can start your vehicle with the correct ignition key if the alarm has been set off. To avoid setting off the alarm by accident:
If you do not want to activate the theft-deterrent system, the vehicle should be locked with the door key after the doors are closed.
. Always unlock the doors with the
RKE transmitter. Unlocking a door any other way will set off the alarm if it is armed.
If you set off the alarm by accident, press unlock on the RKE transmitter or place the key in the ignition and turn it to START to turn off the alarm. The alarm will not stop if you try to unlock a door any other way. Testing the Alarm To test the alarm: 1. From inside the vehicle, lower
the driver window and open the driver door.
2. Activate the system by locking the doors with the power door lock switch while the door is open, or with the RKE transmitter.
3. Get out of the vehicle, close the
door and wait for the security light to go out.
4. Then reach in through the
window, unlock the door with the manual door lock and open the door. This should set off the alarm.
While the alarm is set, the power door unlock switch will not work. If the alarm does not sound when it should but the headlamps flash, check to see if the horn works. The horn fuse may be blown. To replace the fuse, see Fuses and Circuit Breakers on page 10‑39. If the alarm does not sound or the headlamps do not flash, the vehicle should be serviced by your dealer.
Immobilizer See Radio Frequency Statement on page 13‑18 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310.
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Keys, Doors and Windows
Immobilizer Operation This vehicle has PASS-Key® III+ (Personalized Automotive Security System) theft-deterrent system. PASS-Key III+ is a passive theft-deterrent system. The system is automatically armed when the key is removed from the ignition. The system is automatically disarmed when the key is turned to ON/RUN, ACC/ACCESSORY, or START from the LOCK/OFF position. You do not have to manually arm or disarm the system. The security light will come on if there is a problem with arming or disarming the theft-deterrent system.
When the PASS-Key III+ system senses that someone is using the wrong key, it prevents the vehicle from starting. Anyone using a trial-and-error method to start the vehicle will be discouraged because of the high number of electrical key codes. If the engine does not start and the security light on the instrument panel cluster comes on when trying to start the vehicle, there may be a problem with the theft-deterrent system. Turn the ignition off and try again. If the engine still does not start, and the key appears to be undamaged, try another ignition key. At this time, you may also want to check the fuse. See Fuses and Circuit Breakers on page 10‑39. If the engine still does not start with the other key, the vehicle needs service.
If the vehicle does start, the first key may be faulty. See your dealer who can service the PASS-Key III+ to have a new key made. It is possible for the PASS-Key III+ decoder to learn the transponder value of a new or replacement key. Up to 10 keys may be programmed for the vehicle. The following procedure is for programming additional keys only. If all the currently programmed keys are lost or do not operate, you must see your dealer or a locksmith who can service PASS-Key III+ to have keys made and programmed to the system. See your dealer or a locksmith who can service PASS-Key III+ to get a new key blank cut exactly as the ignition key that operates the system.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (17,1)
To program the new additional key: 1. Verify that the new key has
a 1 stamped on it.
2.
Insert the original, already programmed key in the ignition and start the engine. If the engine will not start, see your dealer for service.
3. After the engine has started,
4.
turn the key to LOCK/OFF, and remove the key. Insert the new key to be programmed and turn it to the ON/RUN position within five seconds of turning the ignition to the LOCK/OFF position in Step 3. The security light will turn off once the key has been programmed.
Keys, Doors and Windows
2-17
5. Repeat Steps 1 through 4 if
additional keys are to be programmed.
If you lose or damage your PASS-Key III+ key, see your dealer or a locksmith who can service PASS-Key III+ to have a new key made. Do not leave the key or device that disarms or deactivates the theft-deterrent system in the vehicle.
Exterior Mirrors
Convex Mirrors
{ WARNING
A convex mirror can make things, like other vehicles, look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on the right. Check the inside mirror or glance over your shoulder before changing lanes.
The passenger side mirror is convex shaped. A convex mirror's surface is curved so more can be seen from the driver seat.
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Keys, Doors and Windows
Manual Mirrors Adjust the outside mirrors for a clearer view. Using hood-mounted air deflectors and add-on convex mirror attachments could decrease mirror performance.
Trailer-Tow Mirrors
The lower portion of the mirror is convex. A convex mirror's surface is curved to see more from the driver seat. The convex mirror can be adjusted manually to the driver preferred position for better vision. The mirror may have a turn signal arrow that flashes in the direction of the turn or lane change.
Power Mirrors
If the vehicle has towing mirrors, they can be adjusted for a clearer view of the objects behind you. Manually pull out the mirror head to extend it for better visibility when towing a trailer.
Vehicles with outside power mirrors have the controls on the driver door armrest.
To adjust each mirror: 1. Press (A) or (B) to select the
driver or passenger side mirror. 2. Press the arrows on the control
pad to move the mirror up, down, right, or left.
3. Adjust each outside mirror so that a little of the vehicle and the area behind it can be seen. 4. Press either (A) or (B) again to
deselect the mirror.
The mirrors may also include a memory function that works with the memory seats. See “Memory Seat, Mirrors, and Pedals” under Power Seat Adjustment on page 3‑4 for more information.
Chevrolet Tahoe/Suburban Owner Manual - 2011
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Folding Mirrors
Vehicles with outside power foldaway mirrors have the controls located on the driver door armrest. Power Foldaway 1. Press (A) to fold the mirrors
out to the driving position.
2. Press (B) to fold the mirrors
in to the folded position.
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Resetting the Power Foldaway Mirrors Reset the power foldaway mirrors if:
The mirrors are accidentally obstructed while folding. They are accidentally manually folded/unfolded. The mirrors will not stay in the unfolded position. The mirrors shake and flutter at normal driving speeds.
Fold and unfold them one time using the mirror controls to reset them to their normal position. Manual Foldaway Manually fold the mirrors inward to prevent damage when going through an automatic car wash. To fold, push the mirrors toward the vehicle. Push the mirrors outward, to return to its original position.
Turn Signal Indicator The vehicle may have a turn signal indicator on the mirror. An arrow on the mirror flashes in the direction of the turn or lane change. Ground Illumination Lamps The mirrors may also include ground illumination lamps in the base of the mirror. These lamps help to see the area near the base of the front doors when it is dark out.
Heated Mirrors For vehicles with heated mirrors: < (Rear Window Defogger): Press to heat the mirrors. See “Rear Window Defogger” under Dual Automatic Climate Control System on page 8‑4 or Climate Control Systems on page 8‑1 for more information.
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Keys, Doors and Windows
Side Blind Zone Alert (SBZA) If your vehicle has the Side Blind Zone Alert (SBZA) system, see Side Blind Zone Alert (SBZA) on page 9‑60.
Automatic Dimming Mirror Vehicles with the dimming feature have a driver outside mirror that adjusts for the glare of headlamps behind you. See Manual Rearview Mirror on page 2‑20 for more information.
Park Tilt Mirrors Vehicles with the memory package have a passenger and/or driver mirror that tilts to a preselected position when the vehicle is in R (Reverse). This feature lets the driver view the curb when parallel parking. The mirror(s) return to the original position when the vehicle is shifted out of R (Reverse), or the ignition is turned off. Turn this feature on or off through the Driver Information Center (DIC). See Vehicle Personalization (With DIC Buttons) on page 5‑46 for more information.
Interior Mirrors
Manual Rearview Mirror Hold the mirror in the center to move it for a clearer view of behind your vehicle. Adjust the mirror to avoid glare from the headlamps behind you. Push the tab at the bottom of the mirror forward for daytime use and pull it for nighttime use.
Automatic Dimming Rearview Mirror The vehicle may have an automatic dimming inside rearview mirror. Automatic dimming reduces the glare from the headlamps of the vehicle behind you. The dimming feature comes on and the indicator light illuminates each time the ignition is turned to start. O (On/Off): Press to turn the dimming feature on or off.
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Windows
{ WARNING
Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather.
The vehicle may also have a Rear
Vision Camera (RVC). See Rear
Vision Camera (RVC) on page 9‑62
for more information.
If the vehicle has RVC, the O button
for turning the dimming feature on or
off will not be available.
Vehicles with OnStar have three
additional control buttons for the
OnStar system. See your dealer for
more information about OnStar and
how to subscribe to it. See the
OnStar Owner Guide for more
information about the services
OnStar provides.
Cleaning the Mirror
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a pulsing sound when either rear window is down and the front windows are up. To reduce the sound, open either a front window or the sunroof (if equipped).
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Keys, Doors and Windows
Power Windows
{ WARNING
Leaving children in a vehicle with the keys is dangerous for many reasons. Children or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. The windows will function and they could be seriously injured or killed if caught in the path of a closing window. Do not leave keys in a vehicle with children. When there are children in the rear seat use the window lockout button to prevent unintentional operation of the windows.
Express Down Windows Windows that have the express‐ down feature allow the windows to be lowered without holding the switch. Press the window switch fully and release it to activate the express‐down feature. The express mode can be canceled at any time by briefly pressing, or pulling the switch. Window Lockout o (Window Lockout): The window lockout switch is on the driver door. This feature prevents the rear passenger windows from operating, except from the driver position. Press the switch to turn the lockout feature on or off. An indicator light shows the feature is on.
The power window controls are
located on each of the side doors.
The driver door also has switches
that control the passenger and rear
windows. The power windows work
when the ignition is in ON/RUN or
ACC/ACCESSORY, or in Retained
Accessory Power (RAP). See
Retained Accessory Power (RAP)
on page 9‑32
Press the switch to lower the
window. Pull up the front of the
switch to raise the window.
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Keys, Doors and Windows
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Sun Visors
Roof
Sunroof
Pull the sun visor down to block glare. Detach the sun visor from the center mount to pivot to the side window, or to extend along the rod, if available.
A. Open or Close Sunroof B. Vent On vehicles with a sunroof, there are two sunroof switches on the overhead console above the rearview mirror.
The sunroof only operates when the ignition is in ON/RUN or ACC/ACCESSORY, or in Retained Accessory Power (RAP). See Retained Accessory Power (RAP) on page 9‑32 for more information. To open or close the sunroof, press the open or close switch (A) to the first detent position. To express open or close the sunroof, press the open or close switch (A) to the second detent position and release. To stop the movement, press the switch again. The sunroof has a comfort stop feature which stops the sunroof from opening to the full-open position. From the comfort stop position, press the open or close switch (A) a second time to open the sunroof to the full-open position.
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Keys, Doors and Windows
To automatically vent or close the sunroof, press the vent open or close switch (B). When the sunroof is opened, an air deflector will automatically raise. The air deflector will retract when the sunroof is closed. The sunroof also has a sunshade which can be pulled forward to block sun rays. The sunshade must be opened and closed manually. If an object is in the path of the sunroof while it is closing, the anti-pinch feature will detect the object and stop the sunroof.
Dirt and debris may collect on the sunroof seal or in the track. This could cause an issue with sunroof operation, noise, or plugging the
water drainage system. Periodically open the sunroof and remove any obstacles or loose debris. Wipe the sunroof seal and roof sealing area using a clean cloth, mild soap, and water. Do not remove grease from the sunroof.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (1,1)
Seats and Restraints
3-1
Child Restraints
Older Children . . . . . . . . . . . . . . . 3-52
Infants and Young
Children . . . . . . . . . . . . . . . . . . . . 3-54
Child Restraint Systems . . . . . 3-57
Where to Put the Restraint . . . 3-60
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . 3-61
Replacing LATCH System
Parts After a Crash . . . . . . . . . 3-69
Securing Child Restraints
(Rear Seat Position) . . . . . . . . 3-69
Securing Child Restraints
(Center Front Seat
Position) . . . . . . . . . . . . . . . . . . . 3-72
Securing Child Restraints
(Right Front Seat
Position) . . . . . . . . . . . . . . . . . . . 3-72
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats
Seat Adjustment . . . . . . . . . . . . . . 3-3
Center Seat . . . . . . . . . . . . . . . . . . . 3-4
Power Seat Adjustment . . . . . . . 3-4
Lumbar Adjustment . . . . . . . . . . . 3-6
Reclining Seatbacks . . . . . . . . . . 3-7
Heated Front Seats . . . . . . . . . . . 3-9
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . 3-10
Rear Seats
Heated Rear Seats . . . . . . . . . . 3-11
Second Row Seats . . . . . . . . . . 3-12
Third Row Seats . . . . . . . . . . . . . 3-16
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . 3-20
How to Wear Safety Belts
Properly . . . . . . . . . . . . . . . . . . . . 3-24
Lap-Shoulder Belt . . . . . . . . . . . 3-28
Safety Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . 3-34
Lap Belt . . . . . . . . . . . . . . . . . . . . . 3-34
Safety Belt Extender . . . . . . . . . 3-35
Safety System Check . . . . . . . . 3-35
Safety Belt Care . . . . . . . . . . . . . 3-36
Replacing Safety Belt System
Parts After a Crash . . . . . . . . . 3-36
Airbag System
Airbag System . . . . . . . . . . . . . . . 3-37
Where Are the Airbags? . . . . . 3-39
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . 3-41
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . 3-43
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . 3-43
What Will You See After an
Airbag Inflates? . . . . . . . . . . . . 3-44
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . 3-45
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . 3-49
Adding Equipment to the
Airbag-Equipped Vehicle . . . 3-50
Airbag System Check . . . . . . . . 3-51
Replacing Airbag System
Parts After a Crash . . . . . . . . . 3-52
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (2,1)
3-2
Seats and Restraints
Head Restraints The front seats have adjustable head restraints in the outboard seating positions.
{ WARNING
With head restraints that are not installed and adjusted properly, there is a greater chance that occupants will suffer a neck/ spinal injury in a crash. Do not drive until the head restraints for all occupants are installed and adjusted properly.
Adjust the head restraint so that the top of the restraint is at the same height as the top of the occupant's head. This position reduces the chance of a neck injury in a crash.
Pull the head restraint up to raise it. To lower the head restraint, press the button, located on the top of the seatback, and push the restraint down.
Chevrolet Tahoe/Suburban Owner Manual - 2011
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Seats and Restraints
3-3
Push down on the head restraint after the button is released to make sure that it is locked in place. The head restraints are not designed to be removed. The vehicle's 2nd-row seats have head restraints in the outboard seating positions that cannot be adjusted. The vehicle's 3rd-row seat, if equipped, has headrests that can be adjusted up and down.
Front Seats
Seat Adjustment
{ WARNING You can lose control of the vehicle if you try to adjust a manual driver seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you do not want to. Adjust the driver seat only when the vehicle is not moving.
To adjust the seat: 1. Lift the bar under the front edge
of the seat cushion to unlock the seat.
2. Slide the seat to the desired position and release the bar.
3. Try to move the seat back and
forth to be sure the seat is locked in place.
Chevrolet Tahoe/Suburban Owner Manual - 2011
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3-4
Seats and Restraints
Center Seat If equipped, the center front seatback doubles as an armrest and cupholder/storage area for the driver and passenger when the center front seat is not used. Do not use it as a seating position when the seatback is folded down.
Power Seat Adjustment
To adjust the seatback, see “Power Reclining Seatbacks” under Reclining Seatbacks on page 3‑7. Memory Seat, Mirrors, and Pedals
To adjust a power seat, if equipped: . Move the seat forward or
rearward by sliding the control forward or rearward. If available, raise or lower the front or rear part of the seat cushion by moving the front or rear of the control up or down. If available, raise or lower the entire seat by moving the entire control up or down.
On vehicles with the memory feature, the controls on the driver door are used to program and recall memory settings for the driver seat, outside mirrors, and the adjustable throttle and brake pedals, if equipped.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (5,1)
Storing Memory Positions To save into memory: 1. Adjust the driver seat, seatback
recliner, both outside mirrors,
and the throttle and brake
pedals, if available.
See Power Mirrors on page 2‑18
and Adjustable Throttle and
Brake Pedal on page 9‑28 for
more information.
Not all mirrors and adjustable
throttles and brake pedals will
have the ability to save and
recall their positions.
2. Press and hold “1” until
two beeps sound.
3. Repeat for a second driver
position using “2.”
To recall, press and release “1” or “2.” The vehicle must be in P (Park). A single beep will sound. The seat, outside mirrors, and adjustable throttle and brake pedals will move to the position previously stored for the identified driver.
Memory Remote Recall The memory feature can recall the driver seat, outside mirrors, and pedals, if available, to stored positions when entering the vehicle. To activate, unlock the driver door with the Remote Keyless Entry (RKE) transmitter. The driver seat, outside mirrors, and adjustable pedals, if available, will move to the memory position associated with the transmitter used to unlock the vehicle. This feature can be turned on or off using the vehicle personalization menu. See “Memory Seat Recall” under Vehicle Personalization (With DIC Buttons) on page 5‑46 for more information. To stop recall movement, press one of the power seat controls, memory buttons, or power mirror buttons, or the adjustable pedal switch.
Seats and Restraints
3-5
If something has blocked the driver seat and/or the adjustable pedals while recalling a memory position, the recall may stop. Remove the obstruction; then press and hold the appropriate manual control for the memory item that is not recalling for two seconds. Try recalling the memory position again by pressing the appropriate memory button. If the memory position is still not recalling, see the dealer for service.
Easy Exit Driver Seat This feature can move the seat rearward to allow extra room to exit the vehicle. B (Easy Exit Driver Seat): Press to recall the easy exit seat position. The vehicle must be in P (Park). If the easy exit seat feature is programmed on in the vehicle personalization menu, automatic seat movement occurs when the ignition key is removed.
Chevrolet Tahoe/Suburban Owner Manual - 2011
Black plate (6,1)
3-6
Seats and Restraints
A single beep sounds. The driver seat moves back approximately 8 cm (3 in). To move the seat back farther, press the easy exit seat button again until the seat is all the way back. If something has blocked the driver seat while recalling the exit position, the recall may stop. Remove the obstruction; then press and hold the power seat control rearward for two seconds. Try recalling the exit position again. If the exit position is still not recalling, see the dealer for service. See “Easy Exit Recall” and “Easy Exit Setup” under Vehicle Personalization (With DIC Buttons) on page 5‑46 for more information.
Lumbar Adjustment
Power Lumbar
Manual Lumbar
If equipped, increase or decrease manual lumbar support by turning the knob forward or rearward.
To adjust the power lumbar support, if equipped: . On vehicles with two-way
lumbar, press and hold the top or bottom of the control to increase or decrease lumbar support.
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Seats and Restraints
3-7
WARNING (Continued)
The lap belt cannot do its job either. In a crash, the belt could go up over your abdomen. The belt forces would be there, not at your pelvic bones. This could cause serious internal injuries. For proper protection when the vehicle is in motion, have the seatback upright. Then sit well back in the seat and wear the safety belt properly.
Do not have a seatback reclined if the vehicle is moving.
. On vehicles with four-way