2014 Chevrolet Silverado Owners Manual

Modifications . . . . . . . . . . . . . . . 10-3

Vehicle Checks Doing Your Own

Service Work . . . . . . . . . . . . . . . 10-3
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment

Overview . . . . . . . . . . . . . . . . . . . 10-5
Engine Oil . . . . . . . . . . . . . . . . . . 10-10
Engine Oil Life System . . . . . 10-13
Automatic Transmission

Fluid . . . . . . . . . . . . . . . . . . . . . . 10-14

Manual Transmission

Fluid . . . . . . . . . . . . . . . . . . . . . . 10-17
Hydraulic Clutch . . . . . . . . . . . . 10-17
Engine Air Cleaner/Filter . . . . 10-18
Cooling System . . . . . . . . . . . . 10-19
Engine Coolant . . . . . . . . . . . . . 10-20
Engine Overheating . . . . . . . . 10-23

Overheated Engine

Protection Operating Mode (6.0L V8 Engine Only) . . . . . 10-25
Engine Fan . . . . . . . . . . . . . . . . . 10-26
Power Steering Fluid (1500

Series) . . . . . . . . . . . . . . . . . . . . 10-26

Power Steering Fluid (2500/

3500 Series) . . . . . . . . . . . . . . 10-26
Washer Fluid . . . . . . . . . . . . . . . 10-27
Brakes . . . . . . . . . . . . . . . . . . . . . 10-28
Brake Fluid . . . . . . . . . . . . . . . . . 10-29
Battery . . . . . . . . . . . . . . . . . . . . . 10-31
Four-Wheel Drive . . . . . . . . . . . 10-31
Front Axle . . . . . . . . . . . . . . . . . . 10-33
Rear Axle . . . . . . . . . . . . . . . . . . 10-34
Noise Control System . . . . . . 10-35
Starter Switch Check . . . . . . . 10-36
Automatic Transmission Shift

Lock Control Function Check . . . . . . . . . . . . . . . . . . . . . 10-37

Ignition Transmission Lock

Check . . . . . . . . . . . . . . . . . . . . . 10-37

Park Brake and P (Park)

Mechanism Check . . . . . . . . 10-37

Wiper Blade

Replacement . . . . . . . . . . . . . . 10-38
Glass Replacement . . . . . . . . 10-38

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10-1

Headlamp Aiming

Headlamp Aiming . . . . . . . . . . 10-39

Bulb Replacement

Bulb Replacement . . . . . . . . . . 10-39
Halogen Bulbs . . . . . . . . . . . . . . 10-39
Headlamps, Front Turn

Signal, Sidemarker, and Parking Lamps . . . . . . . . . . . . 10-39
Fog Lamps . . . . . . . . . . . . . . . . . 10-40
Taillamps (Chassis Cab

Models) . . . . . . . . . . . . . . . . . . . 10-40

Taillamps, Turn Signal,

Stoplamps, and Back-Up Lamps . . . . . . . . . . . . . . . . . . . . 10-41

Center High-Mounted

Stoplamp (CHMSL) and Cargo Lamp . . . . . . . . . . . . . . 10-41
License Plate Lamp . . . . . . . . 10-42
Replacement Bulbs . . . . . . . . . 10-42

Electrical System

Electrical System

Overload . . . . . . . . . . . . . . . . . . 10-43
Fuses . . . . . . . . . . . . . . . . . . . . . . 10-43

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10-2

Vehicle Care

Engine Compartment Fuse

Different Size Tires and

Block . . . . . . . . . . . . . . . . . . . . . 10-43

Wheels . . . . . . . . . . . . . . . . . . . 10-72

Instrument Panel Fuse

Uniform Tire Quality

Block (Left) . . . . . . . . . . . . . . . 10-47

Grading . . . . . . . . . . . . . . . . . . . 10-72

Instrument Panel Fuse Block

(Right) . . . . . . . . . . . . . . . . . . . . 10-50

Wheels and Tires

Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-52
All-Season Tires . . . . . . . . . . . . 10-53
Winter Tires . . . . . . . . . . . . . . . . 10-53
Low-Profile Tires . . . . . . . . . . . 10-53
All-Terrain Tires . . . . . . . . . . . . 10-54
Tire Sidewall Labeling . . . . . . 10-54
Tire Designations . . . . . . . . . . . 10-56
Tire Terminology and

Definitions . . . . . . . . . . . . . . . . 10-58
Tire Pressure . . . . . . . . . . . . . . . 10-61
Tire Pressure Monitor

System . . . . . . . . . . . . . . . . . . . 10-62

Tire Pressure Monitor

Operation . . . . . . . . . . . . . . . . . 10-63
Tire Inspection . . . . . . . . . . . . . . 10-66
Tire Rotation . . . . . . . . . . . . . . . 10-67
Dual Tire Rotation . . . . . . . . . . 10-69
When It Is Time for New

Tires . . . . . . . . . . . . . . . . . . . . . . 10-69
Buying New Tires . . . . . . . . . . . 10-70

Wheel Alignment and Tire

Balance . . . . . . . . . . . . . . . . . . . 10-74
Wheel Replacement . . . . . . . . 10-74
Tire Chains . . . . . . . . . . . . . . . . . 10-75
If a Tire Goes Flat . . . . . . . . . . 10-76
Tire Changing . . . . . . . . . . . . . . 10-78
Full-Size Spare Tire . . . . . . . . 10-88

Jump Starting

Jump Starting . . . . . . . . . . . . . . 10-89

Towing the Vehicle

Towing the Vehicle . . . . . . . . . 10-94
Recreational Vehicle

Towing . . . . . . . . . . . . . . . . . . . . 10-94

Appearance Care

Exterior Care . . . . . . . . . . . . . . . 10-97
Interior Care . . . . . . . . . . . . . . . 10-102
Floor Mats . . . . . . . . . . . . . . . . 10-105

General Information For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks:

California Proposition 65 Warning Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to

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cause cancer and birth defects or other reproductive harm. Engine exhaust, many parts and systems, many fluids, and some component wear by-products contain and/or emit these chemicals.

California Perchlorate Materials Requirements Certain types of automotive applications, such as airbag initiators, safety belt pretensioners, and lithium batteries contained in Remote Keyless Entry transmitters, may contain perchlorate materials. Special handling may be necessary. For additional information, see www.dtsc.ca.gov/hazardouswaste/ perchlorate.

Accessories and Modifications Adding non‐dealer accessories or making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and

handling, emissions systems, aerodynamics, durability, and electronic systems like antilock brakes, traction control, and stability control. These accessories or modifications could even cause malfunction or damage not covered by the vehicle warranty. Damage to vehicle components resulting from modifications or the installation or use of non‐GM certified parts, including control module or software modifications, is not covered under the terms of the vehicle warranty and may affect remaining warranty coverage for affected parts. GM Accessories are designed to complement and function with other systems on the vehicle. See your dealer to accessorize the vehicle using genuine GM Accessories installed by a dealer technician. Also, see Adding Equipment to the Airbag-Equipped Vehicle on page 3-35.

Vehicle Care

10-3

Vehicle Checks

Doing Your Own Service Work

{ Warning

It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner manual procedures and consult the service manual for your vehicle before doing any service work.

If doing some of your own service work, use the proper service manual. It tells you much more about how to service the vehicle than this manual can. To order the proper service manual, see Service Publications Ordering Information on page 13-11.

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10-4

Vehicle Care

This vehicle has an airbag system. Before attempting to do your own service work, see Servicing the Airbag-Equipped Vehicle on page 3-35. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See Maintenance Records on page 11-16.

{ Caution Even small amounts of contamination can cause damage to vehicle systems. Do not allow contaminants to contact the fluids, reservoir caps, or dipsticks.

Hood To open the hood:

1. Pull the handle with this symbol

on it. It is inside the vehicle under the steering wheel.

2. Go to the front of the vehicle to

find the secondary hood release. The handle is under the front edge of the hood near the center. Push the handle to the right and at the same time raise the hood.

Before closing the hood, be sure all the filler caps are on properly. Then bring the hood from full open to within 15 cm (6 in) from the closed position, pause, and push the front center of the hood with a swift, firm motion to fully close the hood.

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Engine Compartment Overview

Vehicle Care

10-5

4.3L V6 Engine

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10-6

Vehicle Care

1. Positive (+) Terminal. See Jump

6. Remote Negative (–) Location.

Starting on page 10-89. 2. Battery on page 10-31. 3. Coolant Surge Tank and

Pressure Cap. See Cooling System on page 10-19.

4. Engine Air Cleaner/Filter on

page 10-18.

5. Automatic Transmission Dipstick

(If Equipped). See “How to Check Automatic Transmission Fluid” under Automatic Transmission Fluid on page 10-14.

See Jump Starting on page 10-89.

7. Engine Cooling Fans (Out of

View). See Cooling System on page 10-19.

8. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil on page 10-10.

9. Engine Oil Dipstick. See

“Checking Engine Oil” under Engine Oil on page 10-10.

10. Brake Fluid Reservoir. See Brake Fluid on page 10-29.

11. Windshield Washer Fluid

Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10-27.

12. Clutch Fluid Reservoir (If Equipped). See Hydraulic Clutch on page 10-17.

13. Engine Compartment Fuse

Block on page 10-43.

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Vehicle Care

10-7

5.3L V8 Engine Shown, 6.2L V8 Engine Similar

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10-8

Vehicle Care

1. Positive (+) Terminal. See Jump

6. Remote Negative (–) Location

Starting on page 10-89. 2. Battery on page 10-31. 3. Coolant Surge Tank and

Pressure Cap. See Cooling System on page 10-19.

4. Engine Air Cleaner/Filter on

page 10-18.

5. Automatic Transmission

Dipstick. See “How to Check Automatic Transmission Fluid” under Automatic Transmission Fluid on page 10-14.

(Out of View). See Jump Starting on page 10-89.

7. Engine Cooling Fans (Out of

View). See Cooling System on page 10-19.

8. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil on page 10-10.

9. Engine Oil Dipstick. See

“Checking Engine Oil” under Engine Oil on page 10-10.

10. Windshield Washer Fluid

Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10-27.

11. Brake Fluid Reservoir. See Brake Fluid on page 10-29. 12. Engine Compartment Fuse

Block on page 10-43.

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Vehicle Care

10-9

6.0L V8 Engine

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10-10

Vehicle Care

1. Positive (+) Terminal. See Jump

9. Remote Negative (–) Location.

Starting on page 10-89. 2. Battery on page 10-31. 3. Coolant Surge Tank and

Pressure Cap. See Cooling System on page 10-19.

4. Engine Air Cleaner/Filter on

page 10-18.

5. Automatic Transmission Dipstick

(If Equipped). See “How to Check Automatic Transmission Fluid” under Automatic Transmission Fluid on page 10-14.

6. Engine Oil Dipstick. See

“Checking Engine Oil” under Engine Oil on page 10-10.

7. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil on page 10-10.

8. Engine Cooling Fan (Out of

View). See Cooling System on page 10-19.

See Jump Starting on page 10-89.

10. Power Steering Fluid

Reservoir. See Power Steering Fluid (2500/3500 Series) on page 10-26 or Power Steering Fluid (1500 Series) on page 10-26.

11. Windshield Washer Fluid

Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10-27.

12. Brake Fluid Reservoir. See Brake Fluid on page 10-29.

13. Auxiliary Battery (If Equipped).

See Battery on page 10-31. 14. Engine Compartment Fuse

Block on page 10-43.

If the vehicle has a diesel engine and/or an Allison Transmission, see the Duramax diesel supplement.

Engine Oil For diesel engine vehicles, see “Engine Oil” in the Duramax diesel supplement. To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these simple, but important steps will help protect your investment: . Always use engine oil approved to the proper specification and of the proper viscosity grade. See “Selecting the Right Engine Oil” in this section.

. Check the engine oil level regularly and maintain the proper oil level. See “Checking Engine Oil” and “When to Add Engine Oil” in this section.

. Change the engine oil at the

appropriate time. See Engine Oil Life System on page 10-13. . Always dispose of engine oil

properly. See “What to Do with Used Oil” in this section.

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Checking Engine Oil It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the vehicle must be on level ground. The engine oil dipstick handle is a loop. See Engine Compartment Overview on page 10-5 for the location of the engine oil dipstick. If a low oil message displays on the DIC, it is important to park on level ground to accurately measure the oil level on the dipstick. Idling the vehicle on steep grades for a long time can influence the level sensing accuracy. Obtaining an accurate oil level reading is essential: 1.

If the engine has been running recently, turn off the engine and allow several minutes for the oil to drain back into the oil pan. Checking the oil level too soon after engine shutoff will not provide an accurate oil level reading.

{ Warning

The engine oil dipstick handle may be hot; it could burn you. Use a towel or glove to touch the dipstick handle.

2. Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level.

When to Add Engine Oil

If the oil is below the cross-hatched area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Right Engine Oil” in this section for an explanation of

Vehicle Care

10-11

what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 12-2.

{ Caution

Do not add too much oil. Oil levels above or below the acceptable operating range shown on the dipstick are harmful to the engine. If you find that you have an oil level above the operating range, i.e., the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged. You should drain out the excess oil or limit driving of the vehicle and seek a service professional to remove the excess amount of oil.

See Engine Compartment Overview on page 10-5 for the location of the engine oil fill cap.

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10-12

Vehicle Care

Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when through. Selecting the Right Engine Oil Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants on page 11-12.

Specification Use and ask for licensed engine oils with the dexos1® approved certification mark. Engine oils meeting the requirements for the vehicle should have the dexos1
approved certification mark. This certification mark indicates that the oil has been approved to the dexos1
specification.

Cold Temperature Operation: In an area of extreme cold, where the temperature falls below −29°C (−20°F), an SAE 0W-30 oil may be used in the 4.3L or 6.0L engine. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, always select an oil of the correct specification. See “Specification” earlier in this section for more information. Engine Oil Additives/Engine Oil Flushes Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.

{ Caution

Failure to use the recommended engine oil can result in engine damage not covered by the vehicle warranty. Check with your dealer or service provider on whether the oil is approved to the dexos1 specification.

Viscosity Grade SAE 0W-20 is the best viscosity grade for the 5.3L and 6.2L V8 engines. SAE 5W-30 is the best viscosity grade for the 4.3L V6, and 6.0L V8 engines. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50.

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Vehicle Care

10-13

engine oil and filter must be changed at least once a year and, at this time, the system must be reset. For vehicles without the CHANGE ENGINE OIL SOON message, an oil change is needed when the OIL LIFE REMAINING percentage is near 0%. Your dealer has trained service people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level. If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 mi) since the last oil change. Remember to reset the oil life system whenever the oil is changed.

What to Do with Used Oil Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash or pouring it on the ground, into sewers, or into streams or bodies of water. Recycle it by taking it to a place that collects used oil.

Engine Oil Life System

When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed. On some vehicles, when the system has calculated that oil life has been diminished, a CHANGE ENGINE OIL SOON message comes on to indicate that an oil change is necessary. See Engine Oil Messages on page 5-37. Change the oil as soon as possible within the next 1 000 km (600 mi). It is possible that, if driving under the best conditions, the oil life system might indicate that an oil change is not necessary for up to a year. The

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10-14

Vehicle Care

How to Reset the Engine Oil Life System Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. Always reset the engine oil life to 100% after every oil change. It will not reset itself. To reset the engine oil life system: 1. Display the OIL LIFE

REMAINING on the DIC. If the vehicle does not have DIC buttons, the vehicle must be in P (Park) to access this display. See Driver Information Center (DIC) (Base Level) on page 5-30
or Driver Information Center (DIC) (Uplevel) on page 5-32.

2. Press and hold V, or the trip

odometer reset stem if the vehicle does not have DIC buttons, for several seconds. The oil life will change to 100%.

The oil life system can also be reset as follows: 1. Turn the ignition to ON/RUN with

the engine off.

2. Fully press the accelerator pedal

slowly three times within five seconds.

3. Display the OIL LIFE

REMAINING on the DIC. If the display shows 100%, the system is reset.

If the vehicle has a CHANGE ENGINE OIL SOON message and it comes back on when the vehicle is started and/or the OIL LIFE REMAINING is near 0%, the engine oil life system has not been reset. Repeat the procedure.

Automatic Transmission Fluid

When to Check and Change Automatic Transmission Fluid It is usually not necessary to check the transmission fluid level. The only reason for fluid loss is a transmission leak or overheated transmission. If a small leak is suspected, then use the following checking procedures to check the fluid level. However, if there is a large leak, then it may be necessary to have the vehicle towed to a dealer service department and have it repaired before driving the vehicle further.

{ Caution

Use of the incorrect automatic transmission fluid may damage the vehicle, and the damage may not be covered by the vehicle warranty. Always use the

(Continued)

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Caution (Continued)

Caution (Continued)

automatic transmission fluid listed in Recommended Fluids and Lubricants on page 11-12.

transmission to overheat. Be sure to get an accurate reading if checking the transmission fluid.

Change the fluid and filter at the scheduled maintenance intervals listed in Maintenance Schedule on page 11-3. Be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 11-12. How to Check Automatic Transmission Fluid

{ Caution

Too much or too little fluid can damage the transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Too little fluid could cause the

(Continued)

Before checking the fluid level, prepare the vehicle: 1. Start the engine and park the

vehicle on a level surface. Keep the engine running.

2. Apply the parking brake and

place the shift lever in P (Park).

3. With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, move the shift lever back to P (Park).

4. Allow the engine to idle (500–

800 rpm) for at least one minute. Slowly release the brake pedal.

5. Keep the engine running and

check the transmission fluid temperature on the Driver

Vehicle Care

10-15

Information Center (DIC). See Driver Information Center (DIC) (Base Level) on page 5-30 or Driver Information Center (DIC) (Uplevel) on page 5-32.

6. Using the transmission fluid

temperature reading, determine and perform the appropriate check procedure. If the transmission fluid temperature reading is not within the required temperature ranges, allow the vehicle to cool, or operate the vehicle until the appropriate transmission fluid temperature is reached.

Cold Check Procedure Use this procedure only as a reference to determine if the transmission has enough fluid to be operated safely until a hot check procedure can be made. The hot check procedure is the most accurate method to check the fluid level. Perform the hot check procedure at the first opportunity. Use this cold check procedure to

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10-16

Vehicle Care

check fluid level when the transmission temperature is between 27°C and 32°C (80°F and 90°F).

4. Check both sides of the dipstick and read the lower level. Repeat the check procedure to verify the reading.

1. Locate the transmission dipstick

at the rear of the engine compartment, on the passenger side of the vehicle. See Engine Compartment Overview on page 10-5.

2. Flip the handle up, then pull out

3.

the dipstick and wipe it with a clean rag or paper towel. Install the dipstick by pushing it back in all the way; wait three seconds, and then pull it back out again.

5.

If the fluid level is below the COLD check band, add only enough fluid as necessary to bring the level into the COLD band. It does not take much fluid, generally less than 0.5 L (1
pt). Do not overfill.

6. Perform a hot check at the first

opportunity after the transmission reaches a normal operating temperature between 71°C to 93°C (160°F to 200°F).

7.

If the fluid level is in the acceptable range, push the dipstick back in all the way, then flip the handle down to lock the dipstick in place.

Hot Check Procedure Use this procedure to check the transmission fluid level when the transmission fluid temperature is between 71°C and 93°C (160°F and 200°F). The hot check is the most accurate method to check the fluid level. The hot check should be performed at the first opportunity in order to verify the cold check. The fluid level rises as fluid temperature increases, so it is important to ensure the transmission temperature is within range.

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1. Locate the transmission dipstick

at the rear of the engine compartment, on the passenger side of the vehicle. See Engine Compartment Overview on page 10-5.

2. Flip the handle up, then pull out

3.

the dipstick and wipe it with a clean rag or paper towel. Install the dipstick by pushing it back in all the way; wait three seconds, and then pull it back out again.

4. Check both sides of the dipstick and read the lower level. Repeat the check procedure to verify the reading.

6.

5. Safe operating level is within the

HOT cross hatch band on the dipstick. If the fluid level is not within the HOT band, and the transmission temperature is between 71°C and 93°C (160°F and 200°F), add or drain fluid as necessary to bring the level into the HOT band. If the fluid level is low, add only enough fluid to bring the level into the HOT band. It does not take much fluid, generally less than 0.5 L (1 pt). Do not overfill. If the fluid level is in the acceptable range, push the dipstick back in all the way, then flip the handle down to lock the dipstick in place.

Vehicle Care

10-17

Consistency of Readings Always check the fluid level at least twice using the procedure described previously. Consistency (repeatable readings) is important to maintaining proper fluid level. If readings are still inconsistent, contact the dealer.

Manual Transmission Fluid It is not necessary to check the manual transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to your dealer service department and have it repaired as soon as possible. See Recommended Fluids and Lubricants on page 11-12 for the proper fluid to use.

Hydraulic Clutch For vehicles with a manual transmission, it is not necessary to regularly check clutch fluid unless you suspect there is a leak in the

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10-18

Vehicle Care

system. Adding fluid will not correct a leak. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. When to Check and What to Use The hydraulic clutch fluid reservoir is filled with DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview on page 10-5 for reservoir location. How to Check and Add Fluid Visually check the clutch fluid reservoir to make sure the fluid level is at the MIN (minimum) line on the side of the reservoir. The hydraulic clutch fluid system should be closed and sealed. Do not remove the cap to check the fluid level or to top-off the fluid level. Remove the cap only when necessary to add the proper fluid until the level reaches the MIN line.

Engine Air Cleaner/Filter If the vehicle has a diesel engine, see “Pickup Models” under “Engine Air Cleaner/Filter” in the Duramax diesel supplement for the correct inspection and replacement procedures. See Engine Compartment Overview on page 10-5 for the location of the engine air cleaner/filter. When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mi) interval. See Maintenance Schedule on page 11-3. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the engine air cleaner/filter from the vehicle by following

Steps 1−8. When the engine air cleaner/filter is removed, lightly shake it to release loose dust and dirt. If the engine air cleaner/filter remains covered with dirt, a new filter is required. Never use compressed air to clean the filter.

Replacing the Engine Air Cleaner/ Filter

1. Screws 2. Electrical Connector 3. Air Duct Clamp

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1. Locate the air cleaner/filter

assembly. See Engine Compartment Overview on page 10-5.

2. Disconnect the outlet duct by

loosening the air duct clamp (3).

3. Disconnect the electrical

connector (2) and the connector harness from the cover.

4. Remove the four screws (1) on top of the cover of the housing and lift up the cover.

5. Remove the engine air cleaner/

filter from the housing. Take care to dislodge as little dirt as possible.

6. Clean the engine air cleaner/ filter sealing surfaces and the housing. Inspect or replace the engine air cleaner/filter.

7.

8. Reverse Steps 2–4 to reinstall

the filter cover housing.

{ Warning

Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/filter off.

{ Caution

If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when you are driving.

Cooling System If the vehicle has the Duramax diesel engine, see the Duramax diesel supplement.

Vehicle Care

10-19

The cooling system allows the engine to maintain the correct working temperature.

5.3L V8 Engine Shown, 4.3L V6 Engine and 6.2L V8 Engine

Similar

1. Coolant Surge Tank 2. Coolant Surge Tank

Pressure Cap

3. Engine Electric Cooling Fans

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10-20

Vehicle Care

{ Warning

{ Warning

An electric engine cooling fan can start even when the engine is not running. To avoid injury, always keep hands, clothing, and tools away from any engine cooling fan.

6.0L V8 Engine

1. Coolant Surge Tank 2. Coolant Surge Tank

Pressure Cap

3. Engine Belt-Driven Cooling Fan

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

{ Caution Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner. Any repairs would not be covered by the

(Continued)

Caution (Continued)

vehicle warranty. Always use DEX-COOL (silicate-free) coolant in the vehicle.

Engine Coolant The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first. The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating on page 10-23.

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What to Use

{ Warning

Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, the engine could get too hot but you would not get the overheat warning. The engine could catch fire and you or others could be burned. Use a 50/ 50 mixture of clean, drinkable water and DEX-COOL coolant.

Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant. If using this mixture, nothing else needs to be added. This mixture: . Gives freezing protection down

to −37°C (−34°F), outside temperature.

. Gives boiling protection up to

129°C (265°F), engine temperature.

. Protects against rust and

corrosion.

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

temperature.

{ Caution

If improper coolant mixture, inhibitors, or additives are used in the vehicle cooling system, the engine could overheat and be damaged. Too much water in the

(Continued)

Vehicle Care

10-21

Caution (Continued)

mixture can freeze and crack engine cooling parts. The repairs would not be covered by the vehicle warranty. Use only the proper mixture of engine coolant for the cooling system. See Recommended Fluids and Lubricants on page 11-12.

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

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10-22

Vehicle Care

Checking Coolant The coolant surge tank is located in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview on page 10-5. The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, wait until it cools down. The coolant level should be at or above the FULL COLD mark. If it is not, there may be a leak in the cooling system. If coolant is visible but the coolant level is not at or above the FULL COLD mark, see “How to Add Coolant to the Coolant Surge Tank for Gasoline Engines,” following.

5.3L V8 Shown, 4.3L V6, 6.0L V8,

and 6.2L V8 Similar

How to Add Coolant to the Coolant Surge Tank for Gasoline Engines If the vehicle has a diesel engine, see “Cooling System” in the Duramax diesel supplement for the proper coolant fill procedure.

{ Warning

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

{ Caution

This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged.

{ Warning

Steam and scalding liquids from a hot cooling system can blow out and burn you badly. Never turn

(Continued)

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Warning (Continued)

the cap when the cooling system, including the surge tank pressure cap, is hot. Wait for the cooling system and surge tank pressure cap to cool.

If no coolant is visible in the surge tank, add coolant.

Light-Duty

Heavy-Duty

Coolant Surge

Coolant Surge

Tank

Tank

Pressure Cap

Pressure Cap

Vehicle Care

10-23

mixture to the coolant surge tank until the level reaches the FULL COLD mark.

5. Replace the pressure cap tightly. 6. Verify coolant level after the

engine is shut off and the coolant is cold. If necessary, repeat coolant fill procedure Steps 1–6.

{ Caution

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

Engine Overheating If the vehicle has the Duramax diesel engine, see the Duramax diesel supplement.

1. Remove the coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise about one full turn. If a hiss is heard, wait for that to stop. A hiss means there is still some pressure left.

2. Keep turning the pressure cap

slowly, and remove it.

3. Fill the coolant surge tank with the proper mixture to the FULL COLD mark.

4. With the coolant surge tank

pressure cap off, start the engine and let it run until the engine coolant temperature gauge indicates approximately 90°C (195°F). By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper

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10-24

Vehicle Care

{ Caution

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

The vehicle has several indicators to warn of engine overheating. There is a coolant temperature gauge in the vehicle's instrument cluster. See Engine Coolant Temperature Gauge on page 5-16. In addition, there are ENGINE OVERHEATED STOP ENGINE, ENGINE OVERHEATED IDLE ENGINE, and ENGINE POWER IS REDUCED messages in the Driver Information Center (DIC). See Engine Cooling System Messages on page 5-37 and Engine Power Messages on page 5-38.

If the decision is made not to lift the hood when this warning appears, get service help right away. See Roadside Assistance Program on page 13-5. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface.

4.3L V6, 5.3L V8, and 6.2L V8 Engines Check to see if the engine cooling fans are running. If the engine is overheating, the fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced. If Steam is Coming from the Engine Compartment { Warning

Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away

(Continued)

Warning (Continued)

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

If No Steam is Coming from the Engine Compartment The ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message, along with a low coolant condition, can indicate a serious problem.

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If there is an engine overheat warning, but no steam is seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: . Climbs a long hill on a hot day. . Stops after high-speed driving. Idles for long periods in traffic. Tows a trailer; see Trailer Towing on page 9-78.

If the ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message appears with no sign of steam, try this for a minute or so: 1. Turn the air conditioning off. 2. Turn the heater on to the highest

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

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

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

If the temperature overheat gauge is no longer in the overheat zone or an overheat warning no longer displays, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle distance from the vehicle in front. If the warning does not come back on, continue to drive normally and have the cooling system checked for proper fill and function. If the warning continues, pull over, stop, and park the vehicle right away. If there is still no sign of steam and the vehicle is equipped with an engine driven cooling fan, push down the accelerator until the engine speed is about twice as fast as normal idle speed for at least five minutes while the vehicle is parked. If the warning is still there, turn off the engine and get everyone out of the vehicle until it cools down.

Vehicle Care

10-25

If there is no sign of steam, idle the engine for five minutes while parked. If the warning is still displayed, turn off the engine until it cools down.

Overheated Engine Protection Operating Mode (6.0L V8 Engine Only) If an overheated engine condition exists and the ENGINE POWER IS REDUCED message displays, an overheat protection mode which alternates firing groups of cylinders helps to prevent engine damage. In this mode, a loss in power and engine performance will be noticed. This operating mode allows the vehicle to be driven to a safe place in an emergency. Driving extended distances and/or towing a trailer in the overheat protection mode should be avoided.

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10-26

Vehicle Care

{ Caution

After driving in the overheated engine protection operating mode, the engine oil will be severely degraded. Any repairs performed before the engine is cool may cause engine damage. Allow the engine to cool before attempting any repair. Repair the cause of coolant loss, change the oil, and reset the oil life system. See Engine Oil on page 10-10.

Engine Fan If the vehicle has a clutched engine cooling fan, when the clutch is engaged, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions, the fan is spinning slower and the clutch is not fully engaged. This improves fuel economy and reduces fan noise. Under heavy vehicle loading, trailer towing, and/or high outside temperatures, the fan speed

increases as the clutch more fully engages, so an increase in fan noise may be heard. This is normal and should not be mistaken as the transmission slipping or making extra shifts. It is merely the cooling system functioning properly. The fan will slow down when additional cooling is not required and the clutch disengages. This fan noise may also be heard when starting the engine. It will go away as the fan clutch partially disengages. If the vehicle has electric cooling fans, the fans may be heard spinning at low speed during most everyday driving. The fans may turn off if no cooling is required. Under heavy vehicle loading, trailer towing, high outside temperatures, or operation of the air conditioning system, the fans may change to high speed and an increase in fan noise may be heard. This is normal and indicates that the cooling system is functioning properly. The

fans will change to low speed when additional cooling is no longer required. The electric engine cooling fans may run after the engine has been turned. off. This is normal and no service is required.

Power Steering Fluid (1500 Series) The vehicle has electric power steering and does not use power steering fluid.

Power Steering Fluid (2500/3500 Series)

See Engine Compartment Overview on page 10-5 for reservoir location.

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When to Check Power Steering Fluid It is not necessary to regularly check power steering fluid unless there is a leak suspected in the system or an unusual noise is heard. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. Wait for the power steering system to cool, with the engine off, before checking the fluid. How to Check Power Steering Fluid To check the power steering fluid: 1. Turn the key off and let the

engine compartment cool down. 2. Wipe the cap and the top of the

reservoir clean.

3. Unscrew the cap and wipe the

dipstick with a clean rag.

4. Replace the cap and completely

tighten it.

5. Remove the cap again and look at the fluid level on the dipstick.

The level should be between the ADD and FULL marks. If necessary, add only enough fluid to bring the level up to the hashed area between the ADD and FULL marks. What to Use To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 11-12. Always use the proper fluid.

{ Caution

Use of the incorrect fluid may damage the vehicle and the damages may not be covered by the vehicle warranty. Always use the correct fluid listed in Recommended Fluids and Lubricants on page 11-12.

Vehicle Care

10-27

Washer Fluid

What to Use When windshield washer fluid needs to be added, be sure to read the manufacturer's instructions before use. Use a fluid that has sufficient protection against freezing in an area where the temperature may fall below freezing. Adding Washer Fluid The vehicle has a low washer fluid message on the DIC that comes on when the washer fluid is low. The message is displayed for 15 seconds at the start of each ignition cycle. When the WASHER FLUID LOW ADD FLUID message displays, washer fluid will need to be added to the windshield washer fluid reservoir.

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

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10-28

Vehicle Care

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview on page 10-5 for reservoir location.

{ Caution

. Do not use engine coolant

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

. Do not mix water with

ready-to-use washer fluid. Water can cause the solution to freeze and damage the washer fluid tank and other parts of the washer system.

(Continued)

Caution (Continued)

. When using concentrated

washer fluid, follow the manufacturer instructions for adding water.

. Fill the washer fluid tank only

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

Brakes This vehicle has front and rear disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound can come and go or be heard all the time the vehicle is moving, except when applying the brake pedal firmly.

{ Warning

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

{ Caution

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

Some driving conditions or climates can cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the

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proper sequence to torque specifications in Capacities and Specifications on page 12-2. Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service might be required. Brake Adjustment Every time the brakes are applied, with or without the vehicle moving, the brakes adjust for wear. Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. The vehicle was designed and tested with top-quality brake parts. When parts of the braking system are replaced, be sure to get

new, approved replacement parts. If this is not done, the brakes might not work properly. For example, installing disc brake pads that are wrong for the vehicle, can change the balance between the front and rear brakes — for the worse. The braking performance expected can change in many other ways if the wrong replacement brake parts are installed.

Brake Fluid

The brake master cylinder reservoir is filled with DOT 3 brake fluid. See Engine Compartment Overview on page 10-5 for the location of the reservoir.

Vehicle Care

10-29

There are only two reasons why the brake fluid level in the reservoir might go down:

The brake fluid level goes down because of normal brake lining wear. When new linings are installed, the fluid level goes back up.

. A fluid leak in the brake

hydraulic system can also cause a low fluid level. Have the brake hydraulic system fixed, since a leak means that sooner or later the brakes will not work well.

Do not top off the brake fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove brake fluid, as necessary, only when work is done on the brake hydraulic system.

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

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10-30

Vehicle Care

{ Warning

If too much brake fluid is added, it can spill on the engine and burn, if the engine is hot enough. You or others could be burned, and the vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system. See “Checking Brake Fluid” in this section.

When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light on page 5-24. Refer to the Maintenance Schedule to determine when to check the brake fluid. See Maintenance Schedule on page 11-3. Checking Brake Fluid Check brake fluid by looking at the brake fluid reservoir. See Engine Compartment Overview on page 10-5.

Always clean the brake fluid reservoir cap and the area around the cap before removing it. This helps keep dirt from entering the reservoir.

{ Warning

With the wrong kind of fluid in the brake hydraulic system, the brakes might not work well. This could cause a crash. Always use the proper brake fluid.

{ Caution

. Using the wrong fluid can

badly damage brake hydraulic system parts. For example, just a few drops of mineral-based oil, such as engine oil, in the brake hydraulic system can damage brake hydraulic system parts so badly that they will have to (Continued)

The fluid level should be above MIN. If it is not, have the brake hydraulic system checked to see if there is a leak. After work is done on the brake hydraulic system, make sure the level is above MIN but not over the MAX mark.

What to Add Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11-12.

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Vehicle Care

10-31

Extended Storage: Remove the black, negative (−) cable from the battery or use a battery trickle charger.

Four-Wheel Drive

Transfer Case

When to Check Lubricant Refer to Maintenance Schedule on page 11-3 to determine when to check the lubricant.

Caution (Continued)

be replaced. Do not let someone put in the wrong kind of fluid.

. If brake fluid is spilled on the

vehicle's painted surfaces, the paint finish can be damaged. Be careful not to spill brake fluid on the vehicle. If you do, wash it off immediately.

Battery Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview on page 10-5 for battery location.

{ Warning

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

Vehicle Storage

{ Warning

Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 10-89 for tips on working around a battery without getting hurt.

Infrequent Usage: Remove the black, negative (−) cable from the battery to keep the battery from running down.

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10-32

Vehicle Care

How to Check Lubricant

Manual Transfer Case

Automatic Transfer Case

Electronic Transfer Case

1. Fill Plug 2. Drain Plug

1. Fill Plug 2. Drain Plug

1. Fill Plug 2. Drain Plug To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the fill plug (1) hole, located on the transfer case, some lubricant will need to be added. Add enough lubricant to raise the level to the bottom of the fill plug (1) hole. Use care not to overtighten the plug.

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Vehicle Care

10-33

When to Change Lubricant Refer to Maintenance Schedule on page 11-3 to determine how often to change the lubricant.

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

Front Axle

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

How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface.

1500 Series

All Except 1500 Series

1. Fill Plug 2. Drain Plug

1. Fill Plug 2. Drain Plug . When the differential is cold, add

enough lubricant to raise the level from 0 mm (0 in) to 3.2 mm (1/8 in) below the fill plug (1) hole.

. When the differential is at

operating temperature (warm), add enough lubricant to raise the level to the bottom of the fill plug (1) hole.

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10-34

Vehicle Care

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

Rear Axle

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

How to Check Lubricant

2500HD with 6.0L

All axle assemblies are filled by volume of fluid during production. They are not filled to reach a certain level. When checking the fluid level on any axle, variations in the readings can be caused by factory fill differences between the minimum and the maximum fluid volume. Also, if a vehicle has just been driven before checking the fluid level, it may appear lower than normal because fluid has traveled out along the axle tubes and has not drained back to the sump area. Therefore, a reading taken five minutes after the vehicle has been driven will appear to have a lower fluid level than a vehicle that has been stationary for an hour or two. The rear axle assembly must