2016 Chevrolet Corvette Owners Manual

which could damage it. Always have the air cleaner/filter in place when you are driving.

Cooling System (Engine) The cooling system allows the engine to maintain the correct working temperature.

5. Turn the air cleaner/filter

endcap downward and disengage the lower endcap mounting tabs from the lower retention hinge features. Be sure to insert the lower endcap mounting tabs fully into the housing retention hinge features before turning the endcap upward and replacing the screws. Inspect or replace the air cleaner/filter.

6.

7. Reverse Steps 1–6 to replace

the air cleaner/filter endcap. 8. Replace the extractor hood

duct. See above.

LT1 Engine (without Dry Sump

Engine Oil Tank)

1. Coolant Surge Tank with

Pressure Cap

2. Engine Cooling Fan (Out

of View)

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{ Warning

Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak fixed before you drive the vehicle.

Caution

Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner. Any repairs would not be covered by the vehicle warranty. Always use DEX-COOL (silicate-free) coolant in the vehicle.

LT1 Engine (with Dry Sump

LT4 Engine (with Dry Sump

Engine Oil Tank)

Engine Oil Tank)

1. Coolant Surge Tank with

1. Coolant Surge Tank with

Pressure Cap

Pressure Cap

2. Engine Cooling Fan (Out

2. Engine Cooling Fan (Out

of View)

of View)

{ Warning

An electric engine cooling fan under the hood can start up even when the engine is not running and can cause injury. Keep hands, clothing, and tools away from any underhood electric fan.

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Vehicle Care

Cooling System (Aero Panel) The aero panel enhances aerodynamic efficiency and improves fuel economy. Remove the aero panel and bracket to improve engine cooling and air conditioning performance when driving aggressively or in hot weather. To remove the aero panel and bracket:

Non-Z51 and Z51 Shown, Z06

Non-Z51 and Z51 Shown, Z06

Similar

Similar

1. Press up on the two indents at

the bottom and lift the aero panel off the bracket.

2. Unscrew the two fasteners that

secure the bracket.

3. Gently pull the bracket away

from the grille.

To replace the bracket and aero panel: 1. Position the bracket over the

grille.

2. Secure the bracket by pushing

the two fasteners into place.

3. Snap the aero panel into place.

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Engine Coolant The cooling system in the vehicle is filled with DEX-COOL® engine coolant. See Recommended Fluids and Lubricants 0 307. The fluid requires changing at certain intervals. See Maintenance Schedule 0 298. The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating 0 237. What to Use

{ Warning

Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The vehicle's coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, the engine

Warning (Continued)

Caution

could get too hot but you would not get the overheat warning. The engine could catch fire and you or others could be burned. Use a mixture of 40% DEX-COOL coolant and 60% clean, drinkable water.

Use a mixture of 40% DEX-COOL coolant and 60% clean, drinkable water. If using this mixture, nothing else needs to be added. This mixture: . Gives freezing protection down

to −28 °C (−18 °F), outside temperature.

. Gives boiling protection up to

129 °C (265 °F), engine temperature.

. Protects against rust and

corrosion.

. Will not damage aluminum parts. . Helps keep the proper engine

If improper coolant mixture, inhibitors, or additives are used in the vehicle cooling system, the engine could overheat and be damaged. Too much water in the mixture can freeze and crack engine cooling parts. The repairs would not be covered by the vehicle warranty. Use only the proper mixture of engine coolant for the cooling system. See Recommended Fluids and Lubricants 0 307.

Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or into sewers, streams, or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health.

(Continued)

temperature.

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Vehicle Care

If ambient temperatures are anticipated below −28 °C (−18 °F), make sure a proper mixture ratio of 50% DEX-COOL coolant and 50% clean, drinkable water is used. Checking Coolant The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the cold fill line, add a mixture of 40% DEX-COOL coolant and 60% clean, drinkable water at the coolant recovery tank, but be sure the cooling system is cool before this is done. See Engine Overheating 0 237.

The engine coolant surge tank is toward the rear of the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview 0 218. When the engine is cold, the coolant level should be at the cold fill line on the coolant surge tank. When the engine is hot, the level could be higher than the cold fill line. If the coolant is below the cold fill line when the engine is hot, there could be a leak in the cooling system. If the coolant is low, add the coolant or take the vehicle to your dealer for service. How to Add Coolant to the Coolant Surge Tank

{ Warning

You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.

{ Warning

Steam and scalding liquids from a hot cooling system can blow out and burn you badly. Never turn the cap when the cooling system, including the surge tank pressure cap, is hot. Wait for the cooling system and surge tank pressure cap to cool.

If coolant is needed, add the proper DEX-COOL coolant mixture directly to the surge tank, but be sure the cooling system is cool before this is done. 1. When the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot, remove the pressure cap. Turn the pressure cap slowly counterclockwise about one-quarter turn and then stop. If a hiss is heard, wait for that to stop. A hiss means there is still some pressure left.

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2. Keep turning the pressure cap

slowly, and remove it.

3. Fill the coolant surge tank with the proper DEX-COOL coolant mixture until the level inside stabilizes at the cold fill line on the front of the surge tank. 4. With the coolant surge tank

pressure cap off, start the engine and let it run until the upper radiator hose can be felt getting hot. Any time during this procedure, watch out for the engine cooling fan. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level stabilizes at the cold fill line on the coolant surge tank.

5. Replace the pressure cap

tightly. Check the level in the surge tank when the system has cooled down. If the coolant is not at the proper level, repeat

Steps 1−4, then reinstall the pressure cap. If the coolant is not at the proper level when the system cools down again, see your dealer.

Caution

If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured.

Engine Overheating The vehicle has several indicators to warn of engine overheating. There is an engine coolant temperature gauge on the instrument cluster. See Engine Coolant Temperature Gauge 0 103. The vehicle may also display a message on the Driver Information Center (DIC). See Engine Cooling System Messages 0 123.

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237

If the decision is made not to lift the hood but to get service help right away, see Roadside Assistance Program 0 319. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fan is running. If the engine is overheating, the fan should be running. If it is not, do not continue to run the engine and have the vehicle serviced.

Caution

Running the engine without coolant may cause damage or a fire. Vehicle damage would not be covered by the vehicle warranty.

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Vehicle Care

If Steam Is Coming from the Engine

{ Warning

Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood. If you keep driving when the engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop the engine if it overheats, and get out of the vehicle until the engine is cool.

If No Steam Is Coming from the Engine If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be

too serious. Sometimes the engine can get a little too hot when the vehicle: . Climbs a long hill on a hot day. . Stops after high-speed driving. Idles for long periods in traffic.

If the overheat warning is displayed with no sign of steam: 1. Turn the air conditioning off. 2. Turn the heater on to the

highest temperature and to the highest fan speed. Open the windows as necessary.

3. When it is safe to do so, pull off

the road, shift to P (Park) or N (Neutral) and let the engine idle.

If the temperature overheat gauge is no longer in the shaded area or an overheat warning no longer displays, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle distance from the vehicle in front. If the warning does not come

back on, continue to drive normally and have the cooling system checked for proper fill and function. If the warning continues, pull over, stop, and park the vehicle right away. If there is no sign of steam, idle the engine for three minutes while parked. If the warning is still displayed, turn off the engine until it cools down.

Washer Fluid

What to Use When the vehicle needs windshield washer fluid, be sure to read the manufacturer instructions before use. If the vehicle will be operating in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing.

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Adding Washer Fluid

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview 0 218.

Caution

. Do not use washer fluid that

contains any type of water repellent coating. This can cause the wiper blades to chatter or skip.

. Do not use engine coolant

(antifreeze) in the windshield washer. It can damage the windshield washer system and paint.

. Do not mix water with

ready-to-use washer fluid. Water can cause the

(Continued)

Caution (Continued)

solution to freeze and damage the washer fluid tank and other parts of the washer system.

. When using concentrated

washer fluid, follow the manufacturer instructions for adding water.

. Fill the washer fluid tank

only three-quarters full when it is very cold. This allows for fluid expansion if freezing occurs, which could damage the tank if it is completely full.

Brakes

Brake Wear Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound can come and go or be

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239

heard all the time the vehicle is moving, except when applying the brake pedal firmly.

{ Warning

The brake wear warning sound means that soon the brakes will not work well. That could lead to a crash. When the brake wear warning sound is heard, have the vehicle serviced.

Caution

Continuing to drive with worn-out brake pads could result in costly brake repair.

Under certain weather or operating conditions, occasional brake squeal might be heard with the vehicle's performance braking system. This brake system is designed for superior fade resistance and consistent operation using high performance brake pads. Brake squeal is normal and does not affect system performance.

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Vehicle Care

If equipped with high performance brake linings, there could be an increased build-up of brake dust as well as minor noises as compared to standard brake linings. Brake linings should always be replaced as complete axle sets.

Brake Wear (Z06 Model with Z07
Package) This vehicle does not have built-in brake pad wear indicators. The brake pads should be inspected periodically and any time the tires are removed. See your dealer. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service may be required. Replacing Brake System Parts Always replace brake system parts with new, approved replacement parts. If this is not done, the brakes may not work properly. The braking performance expected can change in many other ways if the wrong

replacement brake parts are installed or parts are improperly installed.

Brake Fluid

The brake master cylinder reservoir is filled with GM approved DOT 3
brake fluid as indicated on the reservoir cap. See Engine Compartment Overview 0 218 for the location of the reservoir.

Checking Brake Fluid With the vehicle in P (Park) on a level surface, the brake fluid level should be between the minimum and maximum marks on the brake fluid reservoir. There are only two reasons why the brake fluid level in the reservoir may go down:

. Normal brake lining wear. When

new linings are installed, the fluid level goes back up. . A fluid leak in the brake

hydraulic system. Have the brake hydraulic system fixed. With a leak, the brakes will not work well.

Always clean the brake fluid reservoir cap and the area around the cap before removing it. Do not top off the brake fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove fluid, as necessary, only when work is done on the brake hydraulic system.

{ Warning

If too much brake fluid is added, it can spill on the engine and burn, if the engine is hot enough. You or others could be burned, and the vehicle could be damaged.

(Continued)

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Warning (Continued)

Add brake fluid only when work is done on the brake hydraulic system.

When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light 0 108. Brake fluid absorbs water over time which degrades the effectiveness of the brake fluid. Replace brake fluid at the specified intervals to prevent increased stopping distance. See Maintenance Schedule 0 298.

What to Add Use only GM approved DOT 3
brake fluid from a clean, sealed container. See Recommended Fluids and Lubricants 0 307.

{ Warning

The wrong or contaminated brake fluid could result in damage to the brake system. This could result in the loss of braking leading to a possible injury. Always use the proper GM approved brake fluid.

Caution

If brake fluid is spilled on the vehicle's painted surfaces, the paint finish can be damaged. Immediately wash off any painted surface.

Battery - North America The original equipment battery is maintenance free. Do not remove the cap and do not add fluid. Refer to the replacement number on the original battery label when a new battery is needed.

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241

For battery replacement, see your dealer or the service manual. To purchase a service manual, see Service Publications Ordering Information 0 324.

{ Warning WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Batteries also contain other chemicals known to the State of California to cause cancer. WASH HANDS AFTER HANDLING. See California Proposition 65 Warning 0 213.

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Vehicle Care

Vehicle Storage

{ Warning

Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting - North America 0 284 for tips on working around a battery without getting hurt.

Some vehicles have a battery maintainer package. Follow the instructions provided with the battery maintainer package to keep

the battery charged when the vehicle is not in use. Plug the battery maintainer into the rear accessory power outlet only. The front APO turns off after the ignition is off. For vehicles without a battery maintainer, see the following information: Infrequent Usage: Remove the black, negative (−) cable from the battery to keep the battery from running down. See “Window Indexing” under Power Windows 0 44. Extended Storage: It is recommended that the battery maintainer package be used. However, if not, remove the black, negative (−) cable from the battery. All vehicle memory settings will need to be reset when battery power is restored.

Rear Axle

When to Check Lubricant It is not necessary to regularly check rear axle fluid unless a leak is suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have it inspected and repaired. How to Check Lubricant

To get an accurate reading, the vehicle should be on a level surface.

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The fluid level should be at or within 13 mm (0.5 in) of the bottom of the fill plug hole threads. If it is at this level, no additional fluid is needed. If the fluid level is below 13 mm (0.5 in), add fluid until it is above this level. What to Use To add lubricant when the level is low or to completely refill after draining, see Recommended Fluids and Lubricants 0 307. Then fill to within 13 mm (0.5 in) of the bottom of the fill plug hole threads with the required lubricant.

Starter Switch Check

{ Warning When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be

sure there is enough room around the vehicle.

2. Firmly apply both the parking brake and the regular brake. See Electric Parking Brake 0 190. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.

3. For automatic transmission

vehicles, try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral). If the vehicle starts in any other position, contact your dealer for service. For manual transmission vehicles, put the shift lever in Neutral, push the clutch pedal down halfway, and try to start the engine. The vehicle should start only when the clutch pedal is pushed down all the way to the floor. If the vehicle starts when the clutch pedal is not pushed all the way down, contact your dealer for service.

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243

Automatic Transmission Shift Lock Control Function Check

{ Warning When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be

sure there is enough room around the vehicle. It should be parked on a level surface.

2. Apply the parking brake. See Electric Parking Brake 0 190. Be ready to apply the regular brake immediately if the vehicle begins to move.

3. With the engine off, turn the

ignition on, but do not start the engine. Without applying the regular brake, try to move the shift lever out of P (Park) with

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Vehicle Care

normal effort. If the shift lever moves out of P (Park), contact your dealer for service.

pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.

. To check the P (Park)

mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake.

Contact your dealer if service is required.

Wiper Blade Replacement Windshield wiper blades should be inspected for wear and cracking. Replacement blades come in different types and are removed in different ways. For proper type and length, see Maintenance Replacement Parts 0 309.

Park Brake and P (Park) Mechanism Check { Warning

When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move.

Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake. . To check the parking brake's

holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot

To replace the windshield wiper blade: 1. Open the hood. 2. Pull the windshield wiper assembly away from the windshield.

3. Lift up on the latch in the middle of the wiper blade where the wiper arm attaches.

4. With the latch open, pull the wiper blade down toward the windshield far enough to release it from the J-hooked end of the wiper arm.

5. Remove the wiper blade.

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Headlamp Aiming Headlamp aim has been preset and should need no further adjustment. If the vehicle is damaged in a crash, the headlamp aim may be affected. If adjustment to the headlamps is necessary, see your dealer.

Allowing the wiper blade arm to touch the windshield when no wiper blade is installed could damage the windshield. Any damage that occurs would not be covered by the vehicle warranty. Do not allow the wiper blade arm to touch the windshield.

6. Reverse Steps 1–3 for wiper

blade replacement.

Windshield Replacement The windshield is part of the HUD system. If the vehicle has to have the windshield replaced, get one that is designed for HUD or the HUD image may look out of focus.

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245

Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs 0 246. For any bulb-changing procedure not listed in this section, contact your dealer.

High Intensity Discharge (HID) Lighting

{ Warning

The high intensity discharge lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualified technician service them.

After an HID headlamp bulb has been replaced, the beam might be a slightly different shade than it was originally. This is normal.

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Vehicle Care

LED Lighting This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer.

License Plate Lamp To replace one of these bulbs:

Replacement Bulbs

Exterior Lamp

License Plate Lamp

Bulb

Number W5W LL

For replacement bulbs not listed here, contact your dealer.

3. Turn the bulb socket (1)

counterclockwise to remove it from the lamp assembly (3).

4. Pull the bulb (2) straight out of

the bulb socket.

5. Push the replacement bulb straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.

6. Push the lamp assembly back

into position until the release tab locks into place.

Passenger Side Shown, Driver

Side Similar

1. Push the lamp assembly

toward the right.

2. Pull the lamp assembly down

to remove.

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Electrical System

Electrical System Overload The vehicle has fuses to protect against an electrical system overload. Fuses also protect power devices in the vehicle. Replace a bad fuse with a new one of the identical size and rating. If there is a problem on the road and a fuse needs to be replaced, there are some spare fuses and a fuse puller in the Instrument Panel Fuse Block. The same amperage fuse can also be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible. Windshield Wipers If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart.

Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.

Fuses The wiring circuits in the vehicle are protected from short circuits by fuses. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as you can.

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247

Engine Compartment Fuse Block There is one fuse block in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview 0 218 for more information on location.

Caution

Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.

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The vehicle may not be equipped with all of the fuses, relays, and features shown.

Micro J-Case Fuses

Usage

Front Wiper Starter Antilock Brake System Valves Engine Control Module Electric Parking Brake

J-Case Fuses

Usage

Front Heater, Ventilation, and Air Conditioning Antilock Brake System Pump Logistics Vacuum Pump

J-Case Fuses

10

74

Usage

Electronic Rear Differential Module Transmission Cooling Fan 2

Micro

Fuses 2-pin

Usage

11
12

13
14
15

16

17

18

Heated Seat 1
Column Lock Module Steering Column Glove Box Engine Inside Position Body Control Module 6
Heater, Ventilation, and Air Conditioning Controls Body Control Module 5

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249

Micro

Fuses 2-pin

Usage

19
20

21

22
23
24
25

26

27
28
29

30
31

32
33

Heated Seat 2
Body Control Module 7
Electric Steering Column Lock Display Auxiliary Outlet Radio Instrument Cluster HUD Inside Rearview Mirror Odd Ignition Even Ignition Data Link Connector Seat Fan Fuel Pump Power Module Exhaust Valve 1
Horn

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Vehicle Care

Micro

Fuses 2-pin

Usage

Micro

Fuses 3-pin

Usage

Micro Relays

Usage

34
35

36

37

38
39
40
41

42
43
44

45

46

47

Headlamp Washer Air Conditioning Compressor Clutch Engine Outside Position Real Time Damping Intercooler Left Headlamp Right Headlpamp Headlamp Washer Pump Exhaust Valve 2
Reverse Lockout Electric Rear Differential Module Rear Transmission Cooler Fan Transmission Control Module Canister Vent

48

49

50

51
52

53

Integrated Chassis Control Module/ Automatic Occupant Sensing Theft/Vehicle Interface Module Engine/ Transmission Instrument Cluster Headlamp High Beam Transmission Control Module/ Engine Control Module

Micro Relays

Usage

54
55

56
57

Starter Front Wiper Low/High Run/Crank Front Wiper Motor

58
59

60
61

Headlamp Washer Air Conditioning Control Logistics 1
Headlamp Low

Mini Relays

Usage

62

63

Engine Control Module Vacuum Pump

SPARE FUSES

Usage

64
65
66
67
68
69
70

Spare Spare Spare Spare Spare Spare Spare

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251

SPARE FUSES

Usage

71
72
73
75

Spare Spare Spare Spare

Rear Compartment Fuse Block The rear compartment fuse block is in the rear of the vehicle, under the load floor. Lift the carpet and access door in the center of the load floor to access the fuses.

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Vehicle Care

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You can remove fuses using the fuse puller. The vehicle may not be equipped with all of the fuses, relays, and features shown.

Fuses

Usage

10

11
12

Window Driver Power Seat PEPS 2
PEPS 1
Engine Control Module Heated Mirrors Body Control Module 4
Rear Window Defogger GBS Body Control Module 2
Steering Wheel Passenger Power Seat

Fuses

Usage

Fuses

Usage

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253

13
14

15

16

17

18
19

20

21
22

24

25

Not Used Outside Rearview Mirror Body Control Module 1
Body Control Module 3
Sensing Diagnostic Module/Automatic Occupant Sensing Logistics 2
Body Control Module 8
Integrated Chassis Control Module Amplifier Rear Accessory Power Outlet Memory Seat Module/ Convertible Top Theft-Deterrent PSM

26
27

28
29
30

31
32

33
34

35
36

37

38
39
40

LCM OnStar (If Equipped) Camera Module Not Used Fuel Pump Power Module LCM Cinch Latch Battery Regulated Voltage Control Not Used Convertible Top Solenoid Not Used Passenger Window Switch Front Accessory Power Outlet Not Used Spare Spare

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Fuses

Usage

41
42
43
44

Spare Spare Spare Spare

Relays

Usage

R1
R2

R3
R4

R5

Logistics 2
Rear Window Defogger Not Used Front Accessory Power Outlet Theft (Door Lock Security)

Wheels and Tires

Tires Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional information refer to the tire manufacturer.

{ Warning

. Poorly maintained and

improperly used tires are dangerous.

. Overloading the tires can

cause overheating as a result of too much flexing. There could be a blowout and a serious crash. See Vehicle Load Limits 0 171.

(Continued)

Warning (Continued)

. Underinflated tires pose

the same danger as overloaded tires. The resulting crash could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when the tires are cold.

. Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when hitting a pothole. Keep tires at the recommended pressure.

. Worn or old tires can cause a crash. If the tread is badly worn, replace them.

(Continued)

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Warning (Continued)

. Replace any tires that

have been damaged by impacts with potholes, curbs, etc. Improperly repaired tires can cause a crash. Only the dealer or an authorized tire service center should repair, replace, dismount, and mount the tires.

. Do not spin the tires in

excess of 56 km/h (35 mph) on slippery surfaces such as snow, mud, ice, etc. Excessive spinning may cause the tires to explode.

See Tire Pressure for High-Speed Operation 0 264 for inflation pressure adjustment for high-speed driving.

Winter Tires This vehicle was not originally equipped with winter tires. Winter tires are designed for increased traction on snow and ice-covered roads. Consider installing winter tires on the vehicle if frequent driving on ice or snow covered roads is expected. See your dealer for details regarding winter tire availability and proper tire selection. Also, see Buying New Tires 0 270. With winter tires, there may be decreased dry road traction, increased road noise, and shorter tread life. After changing to winter tires, be alert for changes in vehicle handling and braking. If using winter tires: . Use tires of the same brand and

tread type on all four wheel positions.

. Use only radial ply tires of the

same size, load range, and speed rating as the original equipment tires.

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Winter tires with the same speed rating as the original equipment tires may not be available for H, V, W, Y, and ZR speed rated tires. If winter tires with a lower speed rating are chosen, never exceed the tire's maximum speed capability.

Run-Flat Tires This vehicle, when new, had run-flat tires. There is no spare tire, no tire changing equipment, and no place to store a tire in the vehicle. The vehicle also has a Tire Pressure Monitor System (TPMS) that indicates a loss of tire pressure in any of the tires.

{ Warning If the low tire warning light displays on the instrument cluster, the handling capabilities will be reduced during severe maneuvers. Driving too fast could cause loss of control and you or others could be injured. Do not

(Continued)

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Warning (Continued)

drive over 80 km/h (50 mph) when the low tire warning light is displayed. Drive cautiously and check the tire pressures as soon as possible.

Run-flat tires can be driven on with no air pressure. There is no need to stop on the side of the road to change the tire. Continue driving; however, do not drive too far or too fast. Driving on the tire may not be possible if there is permanent damage. To prevent permanent damage, the tire can be driven with no air pressure for up to 80 km (50 mi) at speeds slower than 80 km/h (50 mph). As soon as possible, contact the nearest authorized GM or run-flat servicing facility for inspection and repair or replacement. When driving on a deflated run-flat tire, avoid potholes and other road hazards that could damage the tire and/or wheel beyond repair. When a tire has been damaged, or if driven

any distance while deflated, check with an authorized run-flat tire service center to determine whether the tire can be repaired or should be replaced. To maintain the run-flat feature, all replacement tires must be run-flat tires. To locate the nearest GM or run-flat servicing facility, call Customer Assistance. The valve stems on run-flat tires have sensors that are part of the TPMS. See Tire Pressure Monitor System 0 265. These sensors contain batteries that are designed to last for 10 years under normal driving conditions. See your dealer for wheel or sensor replacement.

Caution

Using liquid sealants can damage the tire valves and tire pressure monitor sensors in the run-flat tires. This damage is not covered by the vehicle warranty. Do not use liquid sealants in run-flat tires.

Low-Profile Tires

Low-Profile Performance Tire The original equipment tires on this vehicle are classified as low-profile performance tires. These tires are designed for very responsive driving on wet or dry pavement, however, may produce more road noise and tend to wear faster.

Caution

Low-profile tires are more susceptible to damage from road hazards or curb impact than standard profile tires. Tire and/or wheel assembly damage can occur when coming into contact with road hazards like potholes, or sharp edged objects, or when sliding into a curb. The warranty does not cover this type of damage. Keep tires set to the correct inflation pressure and

(Continued)

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Caution (Continued)

when possible, avoid contact with curbs, potholes, and other road hazards.

Competition Oriented Tires This vehicle may come with P285/ 30ZR19 and P335/25ZR20 Michelin PS CUP2 competition oriented tires that are DOT approved for street use. Competition oriented tires use a special tread pattern and compound that provide more grip than normal road tires. The minimum tread depth will be reached earlier than typical tires, resulting in reduced tire life. This special tread pattern and compound will have decreased performance in cold climates, heavy rain, and standing water. It is recommended that winter tires be installed on the vehicle when driving at temperatures below approximately

10 °C (50 °F) or on ice or snow covered roads. See Winter Tires 0 255.

{ Warning

Driving on wet roads, in heavy rain, or through standing water with competition oriented tires may cause hydroplaning and loss of control. Use extreme caution and drive slowly on wet roads.

{ Warning

Driving with competition oriented tires on snow, ice, or cold road surfaces can cause loss of control or an accident. Competition oriented tires are summer season tires and are not intended to be driven on snow, ice, or road surfaces below 10 °C (50 °F). Do not drive a vehicle with competition oriented tires in these conditions.

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Caution

Competition oriented tires have rubber compounds that lose flexibility and may develop surface cracks in the tread area at temperatures below −7 °C (20 °F). Always store competition oriented tires indoors and at temperatures above −7 °C (20 °F) when not in use. If the tires have been subjected to −7 °C (20 °F) or less, let them warm up in a heated space to at least 10 °C (50 °F) for 24 hours or more before being installed or driving a vehicle on which they are installed. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use. See Tire Inspection 0 268.

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Summer Tires

High Performance Summer Tires This vehicle may come with high performance summer tires. These tires have a special tread and compound that are optimized for maximum dry and wet road performance. This special tread and compound will have decreased performance in cold climates, and on ice and snow. It is recommended that winter tires be installed on the vehicle if frequent driving at temperatures below approximately 5 °C (40 °F) or on ice or snow covered roads is expected. See Winter Tires 0 255.

Caution

High performance summer tires have rubber compounds that lose flexibility and may develop surface cracks in the tread area at temperatures below −7 °C (20 °F). Always store high performance summer tires

(Continued)

Caution (Continued)

indoors and at temperatures above −7 °C (20 °F) when not in use. If the tires have been subjected to −7 °C (20 °F) or less, let them warm up in a heated space to at least 5 °C (40 °F) for 24 hours or more before being installed or driving a vehicle on which they are installed. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use. See Tire Inspection 0 268.

Tire Sidewall Labeling Useful information about a tire is molded into its sidewall. The examples show a typical passenger tire sidewall.

Passenger (P-Metric) Tire Example (1) Tire Size : The tire size is a combination of letters and numbers used to define a particular tire's width, height, aspect ratio, construction type, and service description. See the “Tire Size” illustration later in this section for more detail. (2) TPC Spec (Tire Performance Criteria Specification) : Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall.

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tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture. (5) Tire Ply Material : The type of cord and number of plies in the sidewall and under the tread. (6) Uniform Tire Quality Grading (UTQG) : Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction, and temperature resistance. For more information see Uniform Tire Quality Grading 0 271. (7) Maximum Cold Inflation Load Limit : Maximum load that can be carried and the maximum pressure needed to support that load.

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Tire Designations

Tire Size The following is an example of a typical passenger vehicle tire size.

(1) Passenger (P-Metric) Tire : The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association. (2) Tire Width : The three-digit number indicates the tire section width in millimeters from sidewall to sidewall.

GM's TPC specifications meet or exceed all federal safety guidelines. (3) DOT (Department of Transportation) : The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards. DOT Tire Date of Manufacture : The last four digits of the TIN indicate the tire manufactured date. The first two digits represent the week (01-52) and the last two digits, the year. For example, the third week of the year 2010 would have a four-digit DOT date of 0310. (4) Tire Identification Number (TIN) : The letters and numbers following the DOT code are the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code,

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(3) Aspect Ratio : A two-digit number that indicates the tire height-to-width measurements. For example, if the tire size aspect ratio is 60, as shown in item 3 of the illustration, it would mean that the tire's sidewall is 60 percent as high as it is wide. (4) Construction Code : A letter code is used to indicate the type of ply construction in the tire. The letter R means radial ply construction; the letter D means diagonal or bias ply construction; and the letter B means belted-bias ply construction. (5) Rim Diameter : Diameter of the wheel in inches. (6) Service Description : These characters represent the load index and speed rating of the tire. The load index represents the load carrying capacity a tire is certified to carry. The speed rating is the maximum speed a tire is certified to carry a load.

Tire Terminology and Definitions Air Pressure : The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds per square inch). Accessory Weight : The combined weight of optional accessories. Some examples of optional accessories are automatic transmission, power windows, power seats, and air conditioning. Aspect Ratio : The relationship of a tire's height to its width. Belt : A rubber coated layer of cords between the plies and the tread. Cords may be made from steel or other reinforcing materials.

Bead : The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim. Bias Ply Tire : A pneumatic tire in which the plies are laid at alternate angles less than 90 degrees to the centerline of the tread. Cold Tire Pressure : The amount of air pressure in a tire, measured in kPa (kilopascal) or psi (pounds per square inch) before a tire has built up heat from driving. See Tire Pressure 0 262. Curb Weight : The weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo. DOT Markings : A code molded into the sidewall of a tire signifying that the tire is in compliance with the U.S.

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Department of Transportation (DOT) Motor Vehicle Safety Standards. The DOT code includes the Tire Identification Number (TIN), an alphanumeric designator which can also identify the tire manufacturer, production plant, brand, and date of production. GVWR : Gross Vehicle Weight Rating. See Vehicle Load Limits 0 171. GAWR FRT : Gross Axle Weight Rating for the front axle. See Vehicle Load Limits 0 171. GAWR RR : Gross Axle Weight Rating for the rear axle. See Vehicle Load Limits 0 171. Intended Outboard Sidewall : The side of an asymmetrical tire that must always face outward when mounted on a vehicle. Kilopascal (kPa) : The metric unit for air pressure.

Light Truck (LT-Metric) Tire : A tire used on light duty trucks and some multipurpose passenger vehicles. Load Index : An assigned number ranging from 1 to 279
that corresponds to the load carrying capacity of a tire. Maximum Inflation Pressure : The maximum air pressure to which a cold tire can be inflated. The maximum air pressure is molded onto the sidewall. Maximum Load Rating : The load rating for a tire at the maximum permissible inflation pressure for that tire. Maximum Loaded Vehicle Weight : The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight.

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Normal Occupant Weight : The number of occupants a vehicle is designed to seat multiplied by 68 kg (150 lb). See Vehicle Load Limits 0 171. Occupant Distribution : Designated seating positions. Outward Facing Sidewall : The side of an asymmetrical tire that has a particular side that faces outward when mounted on a vehicle. The side of the tire that contains a whitewall, bears white lettering, or bears manufacturer, brand, and/or model name molding that is higher or deeper than the same moldings on the other sidewall of the tire. Passenger (P-Metric) Tire : A tire used on passenger cars and some light duty trucks and multipurpose vehicles. Recommended Inflation Pressure : Vehicle manufacturer's recommended

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tire inflation pressure as shown on the tire placard. See Tire Pressure 0 262 and Vehicle Load Limits 0 171. Radial Ply Tire : A pneumatic tire in which the ply cords that extend to the beads are laid at 90 degrees to the centerline of the tread. Rim : A metal support for a tire and upon which the tire beads are seated. Sidewall : The portion of a tire between the tread and the bead. Speed Rating : An alphanumeric code assigned to a tire indicating the maximum speed at which a tire can operate. Traction : The friction between the tire and the road surface. The amount of grip provided. Tread : The portion of a tire that comes into contact with the road.

Treadwear Indicators : Narrow bands, sometimes called wear bars, that show across the tread of a tire when only 1.6 mm (1/16 in) of tread remains. See When It Is Time for New Tires 0 269. UTQGS (Uniform Tire Quality Grading Standards) : A tire information system that provides consumers with ratings for a tire's traction, temperature, and treadwear. Ratings are determined by tire manufacturers using government testing procedures. The ratings are molded into the sidewall of the tire. See Uniform Tire Quality Grading 0 271. Vehicle Capacity Weight : The number of designated seating positions multiplied by 68 kg (150 lb) plus the rated cargo load. See Vehicle Load Limits 0 171.

Vehicle Maximum Load on the Tire : Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight. Vehicle Placard : A label permanently attached to a