2011 Chevrolet Avalanche Owners Manual

The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). The ignition key should come out only in LOCK/OFF.

Contact your dealer if service is required.

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 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.

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Vehicle Care

10-35

Headlamp Aiming The vehicle has a visual optical headlamp aiming system. The aim of the headlamps has been preset at the factory and should need no further adjustment. However, if the vehicle is damaged in a crash, the aim of the headlamps may be affected and adjustment may be necessary. If oncoming vehicles flash their high beams at you, this may mean the vertical aim of the headlamps needs to be adjusted. It is recommended that the vehicle be taken to your dealer for service if the headlamps need to be adjusted. It is possible, however, to re-aim the headlamps as described.

3.

Install the new blade onto the arm connector and make sure the grooved areas are fully set in the locked position.

For the proper type and size, see Maintenance Replacement Parts on page 11‑9.

Glass Replacement If the windshield or front side glass must be replaced, see your dealer to determine the correct replacement glass.

Wiper Blade Replacement Windshield wiper blades should be inspected for wear or cracking. See Scheduled Maintenance on page 11‑3. Replacement blades come in different types and are removed in different ways. To replace the wiper blade assembly: 1. Pull the windshield wiper arm

connector away from the windshield.

2. Squeeze the grooved areas on

each side of the blade, and rotate the blade assembly away from the arm connector.

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Vehicle Care

The vehicle should: . Be placed so the headlamps

are 7.6 m (25 ft) from a light‐colored wall.

. Have all four tires on a level

surface which is level all the way to the wall.

. Be placed so it is perpendicular

to the wall.

. Not have any snow, ice, or mud

on it.

. Be fully assembled and all other

work stopped while headlamp aiming is being performed.

. Be loaded with a full tank of fuel

and one person or 75 kg (160 lbs) sitting on the driver seat.

. Have the tires properly inflated. . Have the spare tire in its proper

location in the vehicle.

3. Record the distance from the ground to the aim dot on the low‐beam headlamp.

Headlamp aiming is done with the vehicle's low-beam headlamps. The high-beam headlamps will be correctly aimed if the low-beam headlamps are aimed properly. To adjust the vertical aim: 1. Open the hood. See Hood on

page 10‑5

4. At a wall, measure from the

ground upward (A) to the recorded distance from Step 3 and mark it.

5. Draw or tape a horizontal line (B)

on the wall the width of the vehicle at the height of the mark in Step 4.

2. Locate the aim dot on the lens of

the low‐beam headlamp.

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Vehicle Care

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Notice: Do not cover a headlamp to improve beam cut-off when aiming. Covering a headlamp may cause excessive heat build-up which may cause damage to the headlamp. 6. Turn on the low-beam

headlamps and place a piece of cardboard or equivalent in front of the headlamp not being adjusted. This allows only the beam of light from the headlamp being adjusted to be seen on the flat surface.

9. Make sure that the light from the

headlamp is positioned at the bottom edge of the horizontal tape line. The lamp on the left (A) shows the correct headlamp aim. The lamp on the right (B) shows the incorrect headlamp aim.

10. Repeat Steps 7 through 9 for

the opposite headlamp.

7. Locate the vertical headlamp

aiming screws, which are under the hood near each headlamp assembly. The adjustment screw can be turned with an E8 Torx® socket.

8. Turn the vertical aiming screw

until the headlamp beam is aimed to the horizontal tape line. Turn it clockwise or counterclockwise to raise or lower the angle of the beam.

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Vehicle Care

Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10‑39. For any bulb‐changing procedure not listed in this section, contact your dealer.

Halogen Bulbs

{ WARNING

Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package.

Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps

To replace one of these bulbs, do the following: 1. Open the tailgate. See Tailgate

on page 2‑16 for more information.

A. Stoplamp/Turn Signal/Taillamp B. Back-up Lamp C. Stoplamp/Turn Signal/Taillamp D. Sidemarker Lamp

2. Remove the two screws from the

taillamp assembly.

3. Pull the taillamp assembly

rearward until you disengage the outer pins on the taillamp assembly from the vehicle.

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Vehicle Care

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Replacement Bulbs

Exterior Lamp

Back-up Lamp License Plate Lamp Rear Turn Signal Lamp, Taillamp, and Stoplamp Sidemarker Lamp

Bulb

Number

7441

168

3057K

194LL

For replacement bulbs not listed here, contact your dealer.

4. Turn the bulb socket

counterclockwise to remove it from the taillamp assembly. 5. Pull the old bulb straight out

from the bulb socket.

6. Press a new bulb into the bulb

socket and insert the bulb socket into the taillamp assembly. Turn the bulb socket clockwise into the taillamp assembly until it clicks.

7. Reinstall the taillamp assembly making sure to line up the pins with the vehicle.

License Plate Lamp To replace one of these bulbs:

1. Reach under the rear bumper for

the bulb socket. Turn the bulb socket counterclockwise and pull the bulb socket out of the lamp assembly.

2. Pull the bulb straight out of the

3.

socket. Install the new bulb into the socket.

4. Reinstall the bulb socket by

turning it clockwise into the lamp assembly.

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Vehicle Care

Electrical System

Electrical System Overload The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Fuses and circuit breakers protect the following in the vehicle: . Headlamp Wiring . Windshield Wiper Motor . Power Windows and Other

Power Accessories

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, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible. Headlamp Wiring An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off.

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.

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Vehicle Care

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Notice: Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component. To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.

Fuses and Circuit Breakers The wiring circuits in the vehicle are protected from short circuits by a combination of fuses, circuit breakers, and fusible thermal links. 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.

Engine Compartment Fuse Block

The Engine Compartment Fuse Block is located in the engine compartment, on the driver side of the vehicle. Lift the cover for access to the fuse/relay block.

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Vehicle Care

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

Fuses

Usage

Right Trailer Stop/ Turn Lamp Electronic Stability Suspension Control, Automatic Level Control Exhaust Left Trailer Stop/ Turn Lamp Engine Controls Engine Control Module, Throttle Control Trailer Brake Controller Front Washer Oxygen Sensors

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Fuses

Usage

Fuses

Usage

10

11

12

13

14

15

16

Antilock Brakes System 2
Trailer Back-up Lamps Driver Side Low-Beam Headlamp Engine Control Module (Battery) Fuel Injectors, Ignition Coils (Right Side) Transmission Control Module (Battery) Vehicle Back-up Lamps Passenger Side Low-Beam Headlamp

17

18

19

20

21

22

23

24

25

26

27

Air Conditioning Compressor Oxygen Sensors Transmission Controls (Ignition) Fuel Pump Fuel System Control Module Headlamp Washer Rear Windshield Washer Fuel Injectors, Ignition Coils (Left Side) Trailer Park Lamps Driver Side Park Lamps Passenger Side Park Lamps

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Vehicle Care

Fuses

Usage

Fuses

Usage

Fuses

Usage

28
29

30

31

32

33

34

35

Fog Lamps Horn Passenger Side High-Beam Headlamp Daytime Running Lamps (DRL) (If Equipped) Driver Side High-Beam Headlamp Daytime Running Lamps 2
(If Equipped) Sunroof Key Ignition System, Theft Deterrent System

36

37

38

39

40

41
42

43

44

45

Windshield Wiper SEO B2 Upfitter Usage (Battery) Electric Adjustable Pedals Climate Controls (Battery) Airbag System (Ignition) Amplifier Audio System Miscellaneous (Ignition), Cruise Control Liftgate Release Airbag System (Battery)

46

47

48

49

50
51

52

53

54

Instrument Panel Cluster Not Used Auxiliary Climate Control (Ignition) Center High-Mounted Stoplamp (CHMSL) Rear Defogger Heated Mirrors SEO B1 Upfitter Usage (Battery) Cigarette Lighter, Auxiliary Power Outlet Automatic Level Control Compressor Relay

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Fuses

Usage

55

56

Climate Controls (Ignition) Engine Control Module, Secondary Fuel Pump (Ignition)

J-Case Fuses

Usage

57

58

59

60

61

62

Cooling Fan 1
Automatic Level Control Compressor Heavy Duty Antilock Brake System Cooling Fan 2
Antilock Brake System 1
Starter

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Usage

Relays

Usage

Stud 2 (Trailer Brakes) Left Bussed Electrical Center 1
Electric Running Boards Heated Windshield Washer System Transfer Case Stud 1 (Trailer Connector Battery Power) Mid-Bussed Electrical Center 1
Climate Control Blower Power Liftgate Module Left Bussed Electrical Center 2

FAN HI

FAN LO

FAN CNTRL

HDLP LO/HID FOG LAMP A/C CMPRSR STRTR PWR/TRN FUEL PMP PRK LAMP REAR DEFOG RUN/CRNK

Cooling Fan High Speed Cooling Fan Low Speed Cooling Fan Control Low-Beam Headlamp Front Fog Lamps Air Conditioning Compressor Starter Powertrain Fuel Pump Parking Lamps

Rear Defogger

Switched Power

J-Case Fuses

63

64

65

66

67

68

69

70

71

72

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Vehicle Care

Instrument Panel Fuse Block

The instrument panel fuse block access door is located on the driver side edge of the instrument panel. Pull off the cover to access the fuse block.

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

Fuses

Usage

Rear Seats Rear Accessory Power Outlet

Fuses

Usage Steering Wheel Controls Backlight Driver Door Module Dome Lamps, Driver Side Turn Signal

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Vehicle Care

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Fuses

Usage

Fuses

Usage

Fuses

Usage

10

11

12

13
14

Driver Side Turn Signal, Stoplamp Instrument Panel Back Lighting Passenger Side Turn Signal, Stoplamp Passenger Door Module, Driver Unlock Power Door Lock 2
(Unlock Feature) Power Door Lock 2
(Lock Feature) Stoplamps, Center High‐ Mounted Stoplamp Rear Climate Controls Power Mirror

15

16

17

18

19

20

21

22

23
24

Body Control Module (BCM) Accessory Power Outlets Interior Lamps Power Door Lock 1
(Unlock Feature) Rear Seat Entertainment Ultrasonic Rear Parking Assist, Power Liftgate Power Door Lock 1
(Lock Feature) Driver Information Center (DIC) Rear Wiper Cooled Seats

25

26

Driver Seat Module, Remote Keyless Entry System Driver Power Door Lock (Unlock Feature)

Circuit Breaker

LT DR

Usage

Driver Side Power Window Circuit Breaker

Harness Connector

LT DR

BODY BODY

Usage

Driver Door Harness Connection Harness Connector Harness Connector

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Vehicle Care

Center Instrument Panel Fuse Block The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column. Top View

Circuit Breaker

CB1

CB2

CB3

CB4

Usage

Passenger Side Power Window Circuit Breaker Passenger Seat Circuit Breaker Driver Seat Circuit Breaker Rear Sliding Window

Harness Connector

BODY 2

BODY 1

BODY 3

HEADLINER

HEADLINER

HEADLINER

SEO/

UPFITTER

Usage Body Harness Connector 2
Body Harness Connector 1
Body Harness Connector 3
Headliner Harness Connector 3
Headliner Harness Connector 2
Headliner Harness Connector 1
Special Equipment Option Upfitter Harness Connector

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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 on page 9‑23.

(Continued)

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10-49

WARNING (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.

. Replace any tires that have been damaged by impacts with potholes, curbs, etc.

(Continued)

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

20‐Inch Tires If the vehicle has 20‐inch P275/ 55R20 size tires, they are classified as touring tires and are designed for on road use. The low‐profile, wide tread design is not recommended for off‐road driving. See Off-Road Driving on page 9‑7, for additional information.

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Vehicle Care

Notice: If the vehicle has low‐profile tires, they 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, when possible, avoid contact with curbs, potholes, and other road hazards.

Tire Sidewall Labeling Useful information about a tire is molded into the sidewall. The examples show a typical passenger and light truck tire sidewall.

Passenger (P‐Metric) Tire (A) Tire Size: The tire size code 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. (B) 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. GM's TPC specifications meet or exceed all federal safety guidelines. (C) 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.

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(D) 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, 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. (E) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (F) 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 on page 10‑66.

(G) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load. For information on recommended tire pressure see Tire Pressure on page 10‑56 and Vehicle Load Limits on page 9‑23.

Light Truck (LT-Metric) Tire

(A) Tire Size: The tire size code is a combination of letters and numbers used to define a particular tire's width, height,

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aspect ratio, construction type, and service description. See the “Tire Size” illustration later in this section for more detail. (B) 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. GM's TPC specifications meet or exceed all federal safety guidelines. (C) Dual Tire Maximum Load: Maximum load that can be carried and the maximum pressure needed to support that load when used in a dual configuration. For information on recommended tire pressure see Tire Pressure on page 10‑56
andVehicle Load Limits on page 9‑23.

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Vehicle Care

(D) 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. (E) 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, 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. (F) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (G) Single Tire Maximum Load: Maximum load that can be carried and the maximum

pressure needed to support that load when used as a single. For information on recommended tire pressure see Tire Pressure on page 10‑56 and Vehicle Load Limits on page 9‑23.

Tire Designations

Tire Size The examples show a typical passenger vehicle and light truck tire size.

Passenger (P‐Metric) Tire

(A) 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. (B) Tire Width: The three‐digit number indicates the tire section width in millimeters from sidewall to sidewall. (C) Aspect Ratio: A two‐digit number that indicates the tire height‐to‐width measurements. For example, if the tire size aspect ratio is 75, as shown in item C of the tire illustration, it would mean that the tire's sidewall is 75 percent as high as it is wide. (D) 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.

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(E) Rim Diameter: Diameter of the wheel in inches. (F) 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.

Light Truck (LT‐Metric) Tire

(A) Light Truck (LT‐Metric) Tire: The United States version of a metric tire sizing system. The letters LT as the first two characters in the tire size means a light truck tire engineered to standards set by the U.S. Tire and Rim Association.

(B) Tire Width: The three‐digit number indicates the tire section width in millimeters from sidewall to sidewall. (C) Aspect Ratio: A two‐digit number that indicates the tire height‐to‐width measurements. For example, if the tire size aspect ratio is 75, as shown in item C of the light truck (LT‐Metric) tire illustration, it would mean that the tire's sidewall is 75 percent as high as it is wide. (D) 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.

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(E) Rim Diameter: Diameter of the wheel in inches. (F) Load Range : Load Range. (G) Service Description: The service description indicates the load index and speed rating of a tire. If two numbers are given as in the example, 120/116, then this represents the load index for single versus dual wheel usage (single/dual). 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).

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Vehicle Care

Accessory Weight: The combined weight of optional accessories. Some examples of optional accessories are automatic transmission, power steering, power brakes, 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 that is located 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 on page 10‑56. 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. 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 on page 9‑23. GAWR FRT: Gross Axle Weight Rating for the front axle. See Vehicle Load Limits on page 9‑23. GAWR RR: Gross Axle Weight Rating for the rear axle. See Vehicle Load Limits on page 9‑23. 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.

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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. Normal Occupant Weight: The number of occupants a vehicle is designed to seat multiplied by 68 kg (150 lbs). See Vehicle Load Limits on page 9‑23.

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 tire inflation pressure as shown on the tire placard. See Tire

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10-55

Pressure on page 9‑23
andVehicle Load Limits on page 9‑23. 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.

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Vehicle Care

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 on page 10‑63. 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 on page 10‑66.

Vehicle Capacity Weight: The number of designated seating positions multiplied by 68 kg (150 lbs) plus the rated cargo load. See Vehicle Load Limits on page 9‑23. 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 vehicle showing the vehicle capacity weight and the original equipment tire size and recommended inflation pressure. See “Tire and Loading Information Label” under Vehicle Load Limits on page 9‑23.

Tire Pressure Tires need the correct amount of air pressure to operate effectively. Notice: Neither tire underinflation nor overinflation is good. Underinflated tires, or tires that do not have enough air, can result in:

. Tire overloading and

over-heating which could lead to a blowout.

. Premature or

irregular wear. . Poor handling. . Reduced fuel economy.

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Overinflated tires, or tires that have too much air, can result in:

. Unusual wear. . Poor handling. . Rough ride. . Needless damage from

road hazards.

The Tire and Loading Information label on the vehicle indicates the original equipment tires and the correct cold tire inflation pressures. The recommended pressure is the minimum air pressure needed to support the vehicle's maximum load carrying capacity. For additional information regarding how much weight the vehicle can carry, and an example of the Tire and Loading Information label, see Vehicle Load Limits on page 9‑23. How the vehicle is loaded affects

vehicle handling and ride comfort. Never load the vehicle with more weight than it was designed to carry.

When to Check Check the tires once a month or more. Do not forget the spare tire, if the vehicle has one. SeeFull-Size Spare Tire on page 10‑86 for additional information.

How to Check Use a good quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning the vehicle has not been driven for at least three hours or no more than 1.6 km (1 mi).

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Remove the valve cap from the tire valve stem. Press the tire gauge firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is low, add air until the recommended pressure is reached. If the inflation pressure is high, press on the metal stem in the center of the tire valve to release air. Re-check the tire pressure with the tire gauge. Return the valve caps on the valve stems to prevent leaks and keep out dirt and moisture.

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Vehicle Care

Tire Pressure Monitor System The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your tires and transmit tire pressure readings to a receiver located in the vehicle. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire

pressure telltale when one or more of your tires is significantly under‐inflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under‐inflated tire causes the tire to overheat and can lead to tire failure. Under‐inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under‐inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly.

The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start‐ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. See Tire Pressure Monitor Operation on page 10‑59 for additional information.

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Federal Communications Commission (FCC) and Industry Canada See Radio Frequency Statement on page 13‑19 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310.

Tire Pressure Monitor Operation This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel assembly, excluding the spare tire and wheel assembly. The TPMS sensors monitor the air pressure in the tires and transmit the tire pressure readings to a receiver located in the vehicle.

When a low tire pressure condition is detected, the TPMS illuminates the low tire pressure warning light located on the instrument cluster. 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 9‑23. A message to check the pressure in a specific tire displays in the Driver Information Center (DIC). The low tire pressure warning light and the DIC warning message come on at each ignition cycle until the tires are inflated to the correct inflation pressure. Using the DIC, tire pressure levels can be viewed. For additional information and details about the DIC operation and

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displays, see Driver Information Center (DIC) on page 5‑26 and Tire Messages on page 5‑41. The low tire pressure warning light may come on in cool weather when the vehicle is first started, and then turn off as the vehicle is driven. This could be an early indicator that the air pressure is getting low and needs to be inflated to the proper pressure. A Tire and Loading Information label shows the size of the original equipment tires and the correct inflation pressure for the tires when they are cold. See Vehicle Load Limits on page 9‑23, for an example of the Tire and Loading Information label and its location. Also see Tire Pressure on page 10‑56.

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Vehicle Care

The TPMS can warn about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection on page 10‑62, Tire Rotation on page 10‑62, and Tires on page 10‑49. Notice: Tire sealant materials are not all the same. A non-approved tire sealant could damage the TPMS sensors. TPMS sensor damage caused by using an incorrect tire sealant is not covered by the vehicle warranty. Always use only the GM-approved tire sealant available through your dealer or included in the vehicle.

TPMS Malfunction Light and Message The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire pressure warning light flashes for about one minute and then stays on for the remainder of the ignition cycle. A DIC warning message also displays. The malfunction light and DIC warning message come on at each ignition cycle until the problem is corrected. Some of the conditions that can cause these to come on are: . One of the road tires has been

replaced with the spare tire. The spare tire does not have a TPMS sensor. The malfunction light and the DIC message should go off after the road tire is replaced and the sensor matching process is performed successfully. See “TPMS Sensor Matching Process” later in this section.

The TPMS sensor matching process was not done or not completed successfully after rotating the tires. The malfunction light and the DIC message should go off after successfully completing the sensor matching process. See “TPMS Sensor Matching Process” later in this section.

. One or more TPMS sensors are

missing or damaged. The malfunction light and the DIC message should go off when the TPMS sensors are installed and the sensor matching process is performed successfully. See your dealer for service.

. Replacement tires or wheels do not match the original equipment tires or wheels. Tires and wheels other than those recommended could prevent the TPMS from functioning properly. See Buying New Tires on page 10‑64.

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. Operating electronic devices or being near facilities using radio wave frequencies similar to the TPMS could cause the TPMS sensors to malfunction.

If the TPMS is not functioning properly, it cannot detect or signal a low tire condition. See your dealer for service if the TPMS malfunction light and DIC message come on and stay on. TPMS Sensor Matching Process Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new tire/wheel position after rotating the vehicle’s tires or replacing one or more of the TPMS sensors. Also, the TPMS sensor matching process should be performed after replacing a spare tire with a road tire containing the TPMS sensor. The malfunction light and the DIC message should go off at the next ignition cycle. The sensors are matched to the tire/wheel positions,

using a TPMS relearn tool, in the following order: driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear. See your dealer for service or to purchase a relearn tool. There are two minutes to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer, the matching process stops and must be restarted. The TPMS sensor matching process is: 1. Set the parking brake. 2. Turn the ignition to ON/RUN with

the engine off.

3. Press the Remote Keyless Entry

(RKE) transmitter's Q and " buttons at the same time for approximately five seconds. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE message displays on the DIC screen.

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4. Start with the driver side

front tire.

5. Place the relearn tool against

the tire sidewall, near the valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position.

6. Proceed to the passenger side

front tire, and repeat the procedure in Step 5.

7. Proceed to the passenger side

rear tire, and repeat the procedure in Step 5.

8. Proceed to the driver side rear

tire, and repeat the procedure in Step 5. The horn sounds two times to indicate the sensor identification code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off.

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9. Turn the ignition to LOCK/OFF. 10. Set all four tires to the

recommended air pressure level as indicated on the Tire and Loading Information label.

Tire Inspection GM recommends that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month. Replace the tire if: . The indicators at three or

more places around the tire can be seen.

. There is cord or fabric

showing through the tire's rubber.

. The tread or sidewall is

cracked, cut, or snagged deep enough to show cord or fabric.

. The tire has a bump, bulge,

or split.

. The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage.

Tire Rotation Tires should be rotated every 12 000 km (7,500 miles). See Scheduled Maintenance on page 11‑3. The purpose of a regular tire rotation is to achieve a uniform wear for all tires on the vehicle. This will ensure that the vehicle continues to perform most like it did when the tires were new. Any time you notice unusual wear, rotate the tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See

When It Is Time for New Tires on page 10‑68 and Wheel Replacement on page 10‑68.

When rotating the vehicle's tires, always use the correct rotation pattern shown here. Do not include the spare tire in the tire rotation.

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After the tires have been rotated, adjust the front and rear inflation pressures as shown on the Tire and Loading Information label. See Tire Pressure on page 10‑56 and Vehicle Load Limits on page 9‑23. Reset the Tire Pressure Monitor System. See Tire Pressure Monitor Operation on page 10‑59. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications on page 12‑2.

{ WARNING

Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after time. The wheel could come off and cause an accident. When changing a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off. See If a Tire Goes Flat on page 10‑70.

Lightly coat the center of the wheel hub with wheel bearing grease after a wheel change or tire rotation to prevent corrosion or rust build-up. Do not get grease on the flat wheel mounting surface or on the wheel nuts or bolts.

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When It Is Time for New Tires Factors, such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires.

Treadwear indicators are one way to tell when it is time for new tires. Treadwear indicators appear when the tires have only 1.6 mm (1/16 in) or less of tread remaining. Some commercial truck tires may not have treadwear indicators. See Tire

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Inspection on page 10‑62 and Tire Rotation on page 10‑62 for additional information. The rubber in tires ages over time. This also applies to the spare tire, if the vehicle has one, even if it is never used. Multiple conditions including temperatures, loading conditions, and inflation pressure maintenance affect how fast aging takes place. Tires will typically need to be replaced due to wear before they may need to be replaced due to age. Consult the tire manufacturer for more information on when tires should be replaced. Vehicle Storage Tires age when stored normally mounted on a parked vehicle. Park a vehicle that will be stored for at least a month in a cool, dry, clean area away from direct sunlight to slow aging. This area should be free of grease, gasoline or other substances that can deteriorate rubber.

Parking for an extended period can cause flat spots on the tires that may result in vibrations while driving. When storing a vehicle for at least a month, remove the tires or raise the vehicle to reduce the weight from the tires.

Buying New Tires GM has developed and matched specific tires for the vehicle. The original equipment tires installed on the vehicle, when it was new, were designed to meet General Motors Tire Performance Criteria Specification (TPC Spec) system rating. If you need replacement tires, GM strongly recommends that you get tires with the same TPC Spec rating. This way, the vehicle will continue to have tires that are designed to give the same performance and vehicle safety, during normal use, as the original tires.

GM's exclusive TPC Spec system considers over a dozen critical specifications that impact the overall performance of the vehicle, including brake system performance, ride and handling, traction control, and tire pressure monitoring performance. GM's TPC Spec number is molded onto the tire's sidewall near the tire size. If the tires have an all‐season tread design, the TPC spec number will be followed by an MS for mud and snow. See Tire Sidewall Labeling on page 10‑50 for additional information. GM recommends replacing tires in sets of four. This is because uniform tread depth on all tires will help keep the vehicle performing most like it did when the tires were new. Replacing less than a full set of tires can affect the braking and handling performance of the vehicle. See Tire Inspection on page 10‑62 and Tire Rotation on page 10‑62 for information on proper tire rotation.

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{ WARNING Tires could explode during improper service. Attempting to mount or dismount a tire could cause injury or death. Only your dealer or authorized tire service center should mount or dismount the tires.

{ WARNING

Mixing tires could cause you to lose control while driving. If you mix tires of different sizes, brands, or types (radial and bias-belted tires), the vehicle might not handle properly, and you could have a crash. Using tires of different sizes, brands, or types could also cause damage to the vehicle. Be sure to use the same size, brand, and type of tires on all wheels.

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WARNING (Continued)

WARNING (Continued)

This vehicle may have a different size spare than the road tires (those originally installed on the vehicle). When new, the vehicle included a spare tire and wheel assembly with a similar overall diameter as the vehicle's road tires and wheels, so it is all right to drive on it. Because this spare was developed for use on the vehicle, it will not affect vehicle