2014 Chevrolet Silverado Owners Manual

be supported on a flat, level surface to get a true reading.

All Other Series and Engines

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (35,1)

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

For all 4.3L and 5.3L 1500
Series applications, the proper level is 1.0 mm to 19.0 mm (0.04 in to 0.7 in) below the bottom of the fill hole, located on the rear axle. Add only enough fluid to reach the proper level. For 6.2L 1500 Series applications, the proper level is from 15 mm to 40 mm (0.6 in to 1.6 in) below the bottom of the fill plug hole, located on the rear axle. Add only enough fluid to reach the proper level. For all 6.0L 2500HD Series applications, the proper level is from 0 mm to 13 mm (0 to 0.5 in) below the bottom of the fill plug hole, located on the rear axle. Add only enough fluid to reach the proper level. For all 6.6L Duramax Diesel 2500HD Series applications and all 3500 Series applications, the

proper level is from 17 mm to 21 mm (0.6 in to 0.8 in) below the bottom of the fill plug hole, located on the rear axle. Add only enough fluid to reach the proper level.

What to Use Refer to Recommended Fluids and Lubricants on page 11-12 to determine what kind of lubricant to use.

Noise Control System The following information relates to compliance with federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 4 536 kg (10,000 lb). The noise control system warranty is given in your warranty manual. These standards apply only to vehicles sold in the United States.

Vehicle Care

10-35

Federal law prohibits the following acts or the causing thereof: 1. The removal or rendering

inoperative by any person, other than for purposes of maintenance, repair or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control, prior to its sale or delivery to the ultimate purchaser or while it is in use; or 2. The use of the vehicle after such device or element of design has been removed or rendered inoperative by any person. Among those acts presumed to constitute tampering are the acts listed below.

Insulation: Removal of the noise shields or any underhood insulation.

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10-36

Vehicle Care

Engine: Removal or rendering engine speed governor, if the vehicle has one, inoperative so as to allow engine speed to exceed manufacturer specifications.

Fan and Drive: . Removal of fan clutch, if the

vehicle has one, or rendering clutch inoperative.

. Removal of the fan shroud, if the

vehicle has one.

Air Intake: . Removal of the air cleaner

silencer.

. Modification of the air cleaner.

Exhaust: . Removal of the muffler and/or

resonator.

. Removal of the exhaust pipes

and exhaust pipe clamps.

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. Apply both the parking brake

and the regular brake. 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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (37,1)

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. 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

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

Ignition Transmission Lock Check While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position.

For automatic transmission vehicles, the ignition should turn to LOCK/OFF only when the shift lever is in P (Park). For manual transmission vehicles, the ignition should turn to LOCK/OFF only when you press the key release button.

On all vehicles, the ignition key should come out only in LOCK/OFF. Contact your dealer if service is required.

Vehicle Care

10-37

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.

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10-38

Vehicle Care

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 or cracking. See Maintenance Schedule on page 11-3. Replacement blades come in different types and are removed in different ways. For proper windshield wiper blade length and type, see Maintenance Replacement Parts on page 11-15.

{ Caution

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

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

2. Press the button (2) in the

middle of the wiper arm connector, and pull the wiper blade away from the arm connector (1).

3. Remove the wiper blade. 4. Reverse Steps 1–3 for wiper

blade replacement.

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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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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.

Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10-42. For any bulb‐changing procedure not listed in this section, contact your dealer.

Vehicle Care

10-39

Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps

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.

Driver Side 1. Turn Signal/Sidemarker/

Parking Lamp

2. Low-Beam Headlamp 3. High-Beam Headlamp See your dealer for passenger side replacement.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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10-40

Vehicle Care

Headlamp 1. Open the hood. 2. Remove the headlamp bulb assembly cover by turning it counterclockwise.

3. Turn the bulb socket

counterclockwise to remove it from the headlamp assembly and pull it straight out.

4. Unplug the electrical connector

from the old bulb by releasing the clip on the bulb socket.

Turn Signal/Sidemarker/ Parking Lamp 1. Open the hood. 2.

If replacing a bulb on the passenger side, remove the engine air cleaner.

3. Turn the bulb socket

counterclockwise to remove it from the headlamp assembly and pull it straight out.

4. Remove the bulb by pulling it straight out of the bulb socket.

Taillamps (Chassis Cab Models)

Fog Lamps To replace the front fog lamp bulb: 1. Locate the fog lamp under the

front bumper.

2. Disconnect the electrical

connector from the fog lamp bulb assembly by pressing the connector release.

3. Remove the bulb from the

housing by squeezing the two release tabs and pulling it straight out of the assembly.

1. Back-Up Lamp 2. Stoplamp/Taillamp/Turn

Signal Lamp

To replace one of these bulbs: 1. Remove the four screws. 2. Lift the lens off the lamp

assembly.

3. Turn the old bulb

counterclockwise and pull it straight out from the socket.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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

Vehicle Care

10-41

Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp

1. Stoplamp/Taillamp/Turn

Signal Lamp

2. Back-Up Lamp To replace one of these bulbs: 1. Open the tailgate.

2. Remove the two rear lamp assembly screws and pull rearward until disengaging the two outer pins on the taillamp assembly from the vehicle.

3. Turn the bulb socket

counterclockwise to remove it from the taillamp assembly.

4. Pull the bulb straight out from

the socket.

1. Cargo Lamps 2. Center High-Mounted Stoplamp

(CHMSL) Bulb

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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10-42

Vehicle Care

To replace one of these bulbs:

2. Turn the bulb socket

counterclockwise and pull it straight out.

3. Pull the bulb straight out of the

socket.

Replacement Bulbs

Exterior Lamp

Back-up Lamp Back-up Lamp* Cargo Lamp Center High-Mounted Stoplamp (CHMSL) Fog Lamp Front Turn Signal Lamp and Parking Lamp High-Beam Headlamp

Bulb

Number

921 (W16W)

1156

921 (W16W)

921LL

PS24W 7443 LL

9005 LL

1. Remove the two screws and lift

off the lamp assembly.

2. Turn the bulb socket

counterclockwise and pull it straight out.

3. Pull the bulb straight out from

the socket.

License Plate Lamp To replace one of these bulbs: 1. Locate the license plate lamp

under the rear bumper.

Bulb

Number H11 LL

W5W LL

7444 LL

1157

Exterior Lamp

Low-Beam Headlamp License Plate Lamp Stoplamp/Taillamp/ Turn Signal Lamp Stoplamp/Turn Signal Lamp/ Taillamp* * Chassis Cab Models

For replacement bulbs not listed here, contact your dealer.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (43,1)

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. 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.

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.

Vehicle Care

10-43

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 If the vehicle has a diesel engine, see the Duramax diesel supplement. The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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10-44

Vehicle Care

Lift the cover to access the fuse block.

{ Caution

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

A fuse puller is available in the left instrument panel fuse block.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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Micro J-Case Fuses

J-Case Fuses

10

11
12

Usage

Trailer Brake Trailer Battery

Usage

Antilock Brake System Pump Instrument Panel BEC 1
Spare 4WD Trec Spare Instrument Panel BEC 2
Spare Rear Window Defogger Starter Cooling Fan 1

J-Case Fuses

Usage

13

Cooling Fan 2

Mini Fuses

(2 Pin)

Usage

14

15
16

17

Trailer Stop/Turn Lamps, Left Trailer Park Lamps Trailer Back-up Lamp Trailer Stop/Turn Lamps, Right

Micro Fuses

(2 Pin)

Usage

18
19

20

Fuel Pump Integrated Chassis Control Module Electronic Suspension Control Module

Vehicle Care

10-45

Micro Fuses

(2 Pin)

Usage

21

22
23
24
25

26
27
28

29

30
31
32
33
34

Fuel Pump Power Module Upfitter Switch 1
Upfitter 2
Front Wiper Antilock Brake System Valves Upfitter SW 2
Upfitter SW 3
Parking Lamps, Right Parking Lamps, Left Upfitter 3
Upfitter SW 4
Upfitter 4
Back-up Lamps Engine Control Module Ignition

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10-46

Vehicle Care

Micro Fuses

(2 Pin)

Usage

Micro Fuses

(2 Pin)

Usage

Micro Fuses

(3 Pin)

Usage

35

36
37
38

39

40

41
42
43
44

45

46
47

Air Conditioning Compressor Clutch Heated Mirrors Upfitter 1
Center High-Mounted Stoplamp Miscellaneous Ignition Transmission Ignition Fuel Pump 2
Cooling Fan Clutch Engine Fuel Injectors A, Odd Fuel Injectors B, Even Oxygen Sensor B Throttle Control

48
49
50
51

52
53
54
55

Horn Fog Lamp Oxygen Sensor A Engine Control Module Interior Heater Spare Aeroshutter Front Washer

Micro Fuses

(3 Pin)

Usage

56

57

Air Conditioning Compressor/ Battery Regulated Voltage Control Air Conditioning Compressor Module/ Battery Pack

58

59

Transmission Control Module/ Engine Control Module Headlamps

Micro Relays

Usage

60
61
62
63
64
65
66
67
68

69

Fuel Pump Upfitter 2
Upfitter 3
Upfitter 4
Trailer Park Lamps Run/Crank Upfitter 1
Fuel Pump 2
Air Conditioning Control Starter

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (47,1)

Vehicle Care

10-47

Instrument Panel Fuse Block (Left)

Mini Relays

70

71

Usage Rear Window Defogger Engine Control Module

Solid State

Relay

Usage

72

Cooling Fan Clutch

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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (48,1)

10-48

Vehicle Care

Number

Usage

10

11

12

Accessory Power Outlet 2
SEO Retained Accessory Power Universal Garage Door Opener/Inside Rearview Mirror Body Control Module 3
Body Control Module 5
Driver Window Switch/Mirror Switch Spare Accessory Power Outlet Retained Accessory Power Accessory Power Outlet Battery Retained Accessory Power/Accessory

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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (49,1)

Vehicle Care

10-49

Number

Usage

43

44

45
49

50

Left Front Heated/ Cooled Seat Right Front Heated/ Cooled Seats Spare Accessory Power Outlet 1/Cigarette Lighter Run/Crank

Number

Usage

Number

13

14
17

19
20
22

23

24
25

Discrete Logic Ignition Switch Switch Backlighting Body Control Module 1
Spare Spare Heater, Ventilation and Air Conditioning/ Auxiliary Heater, Ventilation and Air Conditioning Ignition Instrument Cluster Ignition/Sensing Diagnostic Module Ignition Spare Data Link Connector/ Driver Seat Module

26

27
28
29

30
31
32

33
34
36
37
40
41

Usage Passive Entry Passive Start/Heater, Ventilation and Air Conditioning Spare Spare Park Enable/ Electrically Adjustable Pedals SEO Accessory/Run Crank Heated Steering Wheel Spare Instrument Cluster Spare Spare Left Doors Driver Power Seat

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (50,1)

10-50

Vehicle Care

Instrument Panel Fuse Block (Right)

The right instrument panel fuse block access door is on the passenger 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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (51,1)

Vehicle Care

10-51

Number

52

Usage

Rear Sliding Window Close

Number

Usage

Number

Usage

10
15

18
19
20
23
26

27

Accessory Power Outlet 3
Accessory Power Outlet 4
Body Control Module 4
Body Control Module 8
Rear Seat Entertainment Cargo Lamp Steering Wheel Controls Radio Spare Sunroof Airbag/Info Export/Power Take Off/SEO Battery 1
Obstacle Detection/ USB Ports

28

32
35
36
37
39
42

43
44
45

46

47
50

51

Body Control Module 2
SEO Battery 2
AC Inverter Amplifier Spare Rear Sliding Window Right Door Window Motor Front Blower TPIM2/SEO Body Control Module 6
Body Control Module 7
Passenger Seat Retained Accessory Power/Accessory Rear Sliding Window Open

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (52,1)

10-52

Vehicle Care

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

(Continued)

Warning (Continued)

Warning (Continued)

and a serious crash. See Vehicle Load Limits on page 9-15.

. 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.

(Continued)

. 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.

. 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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (53,1)

All-Season Tires This vehicle may come with all-season tires. These tires are designed to provide good overall performance on most road surfaces and weather conditions. Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Original equipment all-season tires can be identified by the last two characters of this TPC code, which will be “MS.” Consider installing winter tires on the vehicle if frequent driving on snow or ice-covered roads is expected. All-season tires provide adequate performance for most winter driving conditions, but they may not offer the same level of traction or performance as winter tires on snow or ice-covered roads. See Winter Tires on page 10-53.

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 on page 10-70. 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.

Vehicle Care

10-53

. Use only radial ply tires of the

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

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.

Low-Profile Tires If the vehicle has P275/55R20, P285/50R20, or P285/45R22
size tires, they are classified as low-profile tires.

{ 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

(Continued)

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Black plate (54,1)

10-54

Vehicle Care

Caution (Continued)

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.

All-Terrain Tires This vehicle may have all-terrain tires. These tires provide good performance on most road surfaces, weather conditions, and for off-road driving. See Off-Road Driving on page 9-6. The tread pattern on these tires may wear more quickly than other tires. Consider rotating the tires more frequently than at 12 000 km (7,500 mi) intervals if irregular wear

is noted when the tires are inspected. See Tire Inspection on page 10-66.

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)/Spare Tire (1) 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. (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. 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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (55,1)

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, 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 on page 10-72. (7) 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 10-61 and Vehicle Load Limits on page 9-15. (8) Temporary Use Only: Only use a temporary spare tire until the road tire is repaired and replaced. This spare tire should not be driven on over 112 km/h (70 mph), or 88 km/h (55 mph) when pulling a trailer, with the

Vehicle Care

10-55

proper inflation pressure. See Full-Size Spare Tire on page 10-88.

Light Truck (LT-Metric) Tire

(1) 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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (56,1)

10-56

Vehicle Care

(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. GM's TPC specifications meet or exceed all federal safety guidelines. (3) 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 10-61
and Vehicle Load Limits on page 9-15. (4) 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. (5) 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.

(6) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (7) 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 10-61 and Vehicle Load Limits on page 9-15.

Tire Designations

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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

Black plate (57,1)

would mean that the tire's sidewall is 75 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.

Vehicle Care

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Light Truck (LT-Metric) Tire

(1) 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 mean a light truck 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. (3) 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 3 of the light truck

Passenger (P-Metric) Tire

(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. (3) 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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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(LT-Metric) tire illustration, it would mean that the tire's sidewall is 75 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) Load Range: Load Range. (7) 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). 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 on page 10-61. Curb Weight: The weight of a motor vehicle with standard and optional equipment including the

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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 9-15. GAWR FRT: Gross Axle Weight Rating for the front axle. See Vehicle Load Limits on page 9-15.

GAWR RR: Gross Axle Weight Rating for the rear axle. See Vehicle Load Limits on page 9-15. 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.

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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 lb). See Vehicle Load Limits on page 9-15. 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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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Vehicle Care

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 Pressure on page 10-61 and Vehicle Load Limits on page 9-15. 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 on page 10-69. 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 10-72. Vehicle Capacity Weight: The number of designated seating positions multiplied by 68 kg (150 lb) plus the rated cargo load. See Vehicle Load Limits on page 9-15. 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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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recommended inflation pressure. See “Tire and Loading Information Label” under Vehicle Load Limits on page 9-15.

Tire Pressure Tires need the correct amount of air pressure to operate effectively.

{ Caution

Neither tire underinflation nor overinflation is good. Underinflated tires, or tires that do not have enough air, can result in:

. Tire overloading and

overheating which could lead to a blowout.

. Premature or irregular wear. . Poor handling.

(Continued)

Caution (Continued)

. Reduced fuel economy.

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.

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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 9-15. 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. See Full-Size Spare Tire on page 10-88 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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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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). 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.

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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 5853506) - 2014 - CRC 3rd Edition - 8/29/13

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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 10-63.

See Radio Frequency Statement on page 13-15.

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

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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 9-15. 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. If the vehicle has DIC buttons, tire pressure levels can be viewed. For additional information and details about the DIC operation and displays, see Driver Information Center (DIC) (Base Level) on page 5-30 or Driver Information Center (DIC) (Uplevel) on page 5-32
and Tire Messages on page 5-42. 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

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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 9-15, for an example of the Tire and Loading Information label and its location. Also see Tire Pressure on page 10-61. The TPMS can warn about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection on page 10-66, Tire Rotation on page 10-67 and Tires on page 10-52.

{ Caution

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.

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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 10-70.

. 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,