2001 Chevrolet Silverado Owners Manual

Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction and temperature performance. (This applies only to vehicles sold in the United States.) The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading system does not apply to deep tread, winter-type snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with respect to these grades, they must also conform to federal safety requirements and additional General Motors Tire Performance Criteria (TPC) standards.

Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate. Traction -- AA, A, B, C The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

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Temperature -- A, B, C The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. Scheduled wheel alignment and wheel balancing are not needed. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced. Wheel Replacement Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your dealer if any of these conditions exist. Your dealer will know the kind of wheel you need.

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Each new wheel should have the same load-carrying capacity, diameter, width, offset and be mounted the same way as the one it replaces. If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM original equipment parts. This way, you will be sure to have the right wheel, wheel bolts and wheel nuts for your vehicle.

CAUTION:

Using the wrong replacement wheels, wheel bolts or wheel nuts on your vehicle can be dangerous. It could affect the braking and handling of your vehicle, make your tires lose air and make you lose control. You could have a collision in which you or others could be injured. Always use the correct wheel, wheel bolts and wheel nuts for replacement.

NOTICE:

The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance and tire or tire chain clearance to the body and chassis.

Whenever a wheel, wheel bolt or wheel nut is replaced on a dual wheel setup, check the wheel nut torque after 100, 1,000 and 6,000 miles (160, 1 600 and 10 000 km) of driving. For proper torque, see “Wheel Nut Torque” in the Index. See “Changing a Flat Tire” in the Index for more information.

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Used Replacement Wheels

CAUTION:

Putting a used wheel on your vehicle is dangerous. You can’t know how it’s been used or how far it’s been driven. It could fail suddenly and cause an accident. If you have to replace a wheel, use a new GM original equipment wheel.

Tire Chains

NOTICE:

If your vehicle has dual wheels or P265/75R16 or LT265/75R16 size tires, don’t use tire chains. They can damage your vehicle because there’s not enough clearance. Use another type of traction device only if its manufacturer recommends it for use on your vehicle and tire size combination and road

NOTICE: (Continued)

NOTICE: (Continued)

conditions. Follow that manufacturer’s instructions. To help avoid damage to your vehicle, drive slowly, readjust or remove the device if it’s contacting your vehicle, and don’t spin your wheels. If you do find traction devices that will fit, install them on the rear tires. If your vehicle does not have dual wheels and is equipped with a tire size other than P265/75R16
or LT265/75R16, use tire chains only where legal and only when you must. Use chains that are the proper size for your tires. Install them on the tires of the rear axle. Don’t use chains on the tires of the front axle. Tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer’s instructions. If you can hear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with chains on will damage your vehicle.

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Don’t use any of these unless this manual says you can. In many uses, these will damage your vehicle: D Alcohol D Laundry Soap D Bleach D Reducing Agents

Cleaning the Inside of Your Vehicle Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl, leather, plastic and painted surfaces with a clean, damp cloth. Cleaning of Fabric/Carpet Your dealer has two cleaners, Multi-Purpose Interior Cleaner and Capture Non-Solvent Dry Spot and Soil Remover for cleaning fabric and carpet. They will clean normal spots and stains very well. You can get GM-approved cleaning products from your dealer. See “Appearance Care and Materials” in the Index.

Appearance Care Remember, cleaning products can be hazardous. Some are toxic. Others can burst into flame if you strike a match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes in a closed space. When you use anything from a container to clean your vehicle, be sure to follow the manufacturer’s warnings and instructions. And always open your doors or windows when you’re cleaning the inside. Never use these to clean your vehicle: D Gasoline D Benzene D Naphtha D Carbon Tetrachloride D Acetone D Paint Thinner D Turpentine D Lacquer Thinner D Nail Polish Remover They can all be hazardous -- some more than others -- and they can all damage your vehicle, too.

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Here are some cleaning tips: D Always read the instructions on the cleaner label. D Clean up stains as soon as you can -- before they set. D Carefully scrape off any excess stain. D Use a clean cloth or sponge, and change to a clean area often. A soft brush may be used if stains are stubborn. D If a ring forms on fabric after spot cleaning, clean the

entire area immediately or it will set.

Using Multi-Purpose Interior Cleaner on Fabric 1. Vacuum and brush the area to remove any loose dirt. 2. Always clean a whole trim panel or section.

Mask surrounding trim along stitch or welt lines. 3. Mix powdered cleaner following the directions on

the container label to form thick suds.

4. Use suds only and apply with a clean sponge.

Don’t saturate the material and don’t rub it roughly. 5. As soon as you’ve cleaned the section, use a sponge

to remove the suds.

6. Wipe cleaned area with a clean, damp towel or cloth. 7. Wipe with a clean cloth and let dry.

Special Fabric Cleaning Problems Stains caused by such things as catsup, coffee (black), egg, fruit, fruit juice, milk, soft drinks, vomit, urine and blood can be removed as follows: 1. Carefully scrape off excess stain, then sponge the

soiled area with cool water.

2. If a stain remains, follow the Multi-Purpose Interior Cleaner instructions described earlier.

3. If an odor lingers after cleaning vomit or urine, treat the area with a water/baking soda solution: 1 teaspoon (5 ml) of baking soda to 1 cup (250 ml) of lukewarm water.

4. Let dry. Stains caused by candy, ice cream, mayonnaise, chili sauce and unknown stains can be removed as follows: 1. Carefully scrape off excess stain. 2. First, clean with cool water and allow to

dry completely.

3. If a stain remains, follow instructions for

Multi-Purpose Interior Cleaner.

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Cleaning Vinyl Use warm water and a clean cloth. D Rub with a clean, damp cloth to remove dirt.

You may have to do it more than once.

D Things like tar, asphalt and shoe polish will stain if

you don’t get them off quickly. Use a clean cloth and a vinyl/leather cleaner. See your dealer for this product.

Cleaning Leather Use a soft cloth with lukewarm water and a mild soap or saddle soap and wipe dry with a soft cloth. Then, let the leather dry naturally. Do not use heat to dry. D For stubborn stains, use a leather cleaner.

See your dealer for this product.

D Never use oils, varnishes, solvent-based or abrasive cleaners, furniture polish or shoe polish on leather.

D Soiled or stained leather should be cleaned

immediately. If dirt is allowed to work into the finish, it can harm the leather.

Cleaning the Top of the Instrument Panel Use only mild soap and water to clean the top surfaces of the instrument panel. Sprays containing silicones or waxes may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions. Cleaning Interior Plastic Components Use only a mild soap and water solution on a soft cloth or sponge. Commercial cleaners may affect the surface finish. Care of Safety Belts Keep belts clean and dry.

CAUTION:

Do not bleach or dye safety belts. If you do, it may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water.

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Cleaning Glass Surfaces Glass should be cleaned often. GM Glass Cleaner or a liquid household glass cleaner will remove normal tobacco smoke and dust films on interior glass. See “Appearance Care and Materials” in the Index. Don’t use abrasive cleaners on glass, because they may cause scratches. Avoid placing decals on the inside rear window, since they may have to be scraped off later. If abrasive cleaners are used on the inside of the rear window, an electric defogger element may be damaged. Any temporary license should not be attached across the defogger grid.

Cleaning the Outside of the Windshield and Wiper Blades If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, wax, sap or other material may be on the blade or windshield. Clean the outside of the windshield with GM Windshield Cleaner, Bon AmiR Powder (non-scratching glass cleaning powder), GM Part No. 1050011. The windshield is clean if beads do not form when you rinse it with water.

Grime from the windshield will stick to the wiper blades and affect their performance. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade with water. Check the wiper blades and clean them as necessary; replace blades that look worn.

Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth at least every six months. During very cold, damp weather more frequent application may be required. See “Recommended Fluids and Lubricants” in the Index.

Cleaning the Outside of Your Vehicle The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. Washing Your Vehicle The best way to preserve your vehicle’s finish is to keep it clean by washing it often with lukewarm or cold water.

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Don’t wash your vehicle in the direct rays of the sun. Use a car washing soap. Don’t use strong soaps or chemical detergents. Be sure to rinse the vehicle well, removing all soap residue completely. You can get GM-approved cleaning products from your dealer. See “Appearance Care and Materials” in the Index. Don’t use cleaning agents that are petroleum based, or that contain acid or abrasives. All cleaning agents should be flushed promptly and not allowed to dry on the surface, or they could stain. Dry the finish with a soft, clean chamois or an all-cotton towel to avoid surface scratches and water spotting. High pressure car washes may cause water to enter your vehicle. Cleaning Exterior Lamps/Lenses Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under “Washing Your Vehicle.” Finish Care Occasional waxing or mild polishing of your vehicle by hand may be necessary to remove residue from the paint finish. You can get GM-approved cleaning products from your dealer. See “Appearance Care and Materials” in the Index.

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Your vehicle may have a “basecoat/clearcoat” paint finish. The clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and made for a basecoat/clearcoat paint finish.

NOTICE:

Machine compounding or aggressive polishing on a basecoat/clearcoat paint finish may dull the finish or leave swirl marks.

Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage your vehicle’s finish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll over a period of years. You can help to keep the paint finish looking new by keeping your vehicle garaged or covered whenever possible.

Protecting Exterior Bright Metal Parts Bright metal parts should be cleaned regularly to keep their luster. Washing with water is all that is usually needed. However, you may use chrome polish on chrome or stainless steel trim, if necessary. Use special care with aluminum trim. To avoid damaging protective trim, never use auto or chrome polish, steam or caustic soap to clean aluminum. A coating of wax, rubbed to high polish, is recommended for all bright metal parts. Cleaning Aluminum or Chrome-Plated Wheels (If Equipped) Keep your wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel. A wax may then be applied. The surface of these wheels is similar to the painted surface of your vehicle. Don’t use strong soaps, chemicals, abrasive polishes, abrasive cleaners, cleaners with acid or abrasive cleaning brushes on them because you could damage the surface. Do not use chrome polish on aluminum wheels.

Use chrome polish only on chrome-plated wheels, but avoid any painted surface of the wheel, and buff off immediately after application. Don’t take your vehicle through an automatic car wash that has silicon carbide tire cleaning brushes. These brushes can also damage the surface of these wheels.

Cleaning Tires To clean your tires, use a stiff brush with a tire cleaner.

NOTICE:

When applying a tire dressing always take care to wipe off any overspray or splash from all painted surfaces on the body or wheels of the vehicle. Petroleum-based products may damage the paint finish and tires.

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Sheet Metal Damage If your vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to the parts repaired or replaced to restore corrosion protection. Original manufacturer replacement parts will provide the corrosion protection while maintaining the warranty. Finish Damage Any stone chips, fractures or deep scratches in the finish should be repaired right away. Bare metal will corrode quickly and may develop into a major repair expense. Minor chips and scratches can be repaired with touch-up materials available from your dealer or other service outlets. Larger areas of finish damage can be corrected in your dealer’s body and paint shop. Underbody Maintenance Chemicals used for ice and snow removal and dust control can collect on the underbody. If these are not removed, accelerated corrosion (rust) can occur on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection.

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At least every spring, flush these materials from the underbody with plain water. Clean any areas where mud and other debris can collect. Dirt packed in closed areas of the frame should be loosened before being flushed. Your dealer or an underbody car washing system can do this for you. Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on your vehicle. This damage can take two forms: blotchy, ringlet-shaped discolorations, and small irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, GM will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever occurs first. This applies only to materials manufactured and sold by General Motors. Bodies, body conversions or equipment not made or sold by General Motors are not covered.

GM Vehicle Care/Appearance Materials

PART NUMBER

SIZE

DESCRIPTION

USAGE

994954
1050172
1050173
1050174
1050214
1050427

Polishing Cloth – Wax Treated

23 in. x 25 in. Tar and Road Oil Remover 16 oz. (0.473 L) Chrome Cleaner and Polish 16 oz. (0.473 L) 16 oz. (0.473 L) White Sidewall Tire Cleaner 32 oz. (0.946 L) 23 oz. (0.680 L)

Vinyl Cleaner Glass Cleaner

1052918**

8 oz. (0.237 L)

Armor Allt Protectant

Multi-Purpose Interior Cleaner Wheel Cleaner

1052925

16 oz. (0.473 L)

Capture Dry Spot Remover

2.5 sq. ft.

16 oz. (0.473 L) 8 oz. (0.237 L)

1052929
1052930
12345721
12345725
12377964* 12377966* 12377984* See your General Motors Parts Department for these products. See “Recommended Fluids and Lubricants” in the Index.

12 oz. (0.354 L) 16 oz. (0.473 L) 16 oz. (0.473 L) 16 oz. (0.473 L)

Synthetic Chamois Silicone Tire Shine

Finish Enhancer

Surface Cleaner

Cleaner Wax

Exterior polishing cloth

Removes tar, road oil and asphalt

Use on chrome, stainless steel, nickel, copper and brass

Removes soil and black marks from whitewalls Cleans vinyl tops, upholstery and convertible tops

Removes dirt, grime, smoke and fingerprints

Protects leather, wood, acrylics, Plexiglast, plastic,

rubber and vinyl

Cleans carpets, seats, interior trim, door panels

and floor mats

Spray on and rinse with water

Attracts, absorbs and removes soils on fabric

Shines vehicle without scratching

Spray on tire shine

Removes dust, fingerprints and surface contaminants Removes light scratches and oxidation and protects finish

Removes contaminants, blemishes and swirl marks

* For exterior use only. **Not recommended for use on instrument panels.

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Vehicle Identification Number (VIN)

This is the legal identifier for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver’s side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Parts labels and the certificates of title and registration.

Engine Identification The 8th character in your VIN is the engine code. This code will help you identify your engine, specifications and replacement parts.

Service Parts Identification Label You’ll find this label on the inside of the glove box. It’s very helpful if you ever need to order parts. On this label is: D your VIN, D the model designation, D paint information and D a list of all production options and

special equipment.

Be sure that this label is not removed from the vehicle.

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Electrical System Add-On Electrical Equipment

NOTICE:

Don’t add anything electrical to your vehicle unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage wouldn’t be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should.

Your vehicle has an air bag system. Before attempting to add anything electrical to your vehicle, see “Servicing Your Air Bag-Equipped Vehicle” in the Index. Windshield Wipers The windshield wiper motor is protected by an internal circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools. If the overload is caused by some electrical problem and not snow, etc., be sure to get it fixed.

Power Windows and Other Power Options Circuit breakers protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed or goes away. Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. If you ever have a problem on the road and don’t have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without -- like the radio or cigarette lighter -- and use its fuse, if it is the correct amperage. Replace it as soon as you can.

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Instrument Panel Fuse Block

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

You can remove fuses with a fuse extractor which is mounted to the fuse block access door. To remove fuses if you don’t have a fuse extractor, hold the end of the fuse between your thumb and index finger and pull straight out. You may have spare fuses located behind the fuse block access door. These can be used to replace a bad fuse. However, make sure it is of the correct amperage.

Usage Retained Accessory Power Relay Power Door Locks

NAME L BODY LOCK DRV UNLOCK Power Door Lock Relay Power Door Lock Relay LOCK HVAC 1
Climate Control System

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NAME CRUISE

IGN 3
4WD

CRANK INT PRK

L DOOR BRAKE RR WIPER ILLUM SEAT TURN

UNLOCK

Usage Cruise Control, Instrument Panel Cluster Ignition, Power Seats Four-Wheel Drive System, Auxiliary Battery Starting System Parking Lamps, Sidemarker Lamps, Interior Lamps Power Door Lock Relay Anti-Lock Brake System Not Used Interior Lamps Power Seat Circuit Breaker Exterior Lamps, Turn Signals, Hazard Lamps Power Door Locks

NAME HTR A/C WS WPR IGN 1
AIR BAG MIR/LOCK DR LOCK PWR WDO UNLOCK IGN 0
SEO IGN

SEO ACCY

RAP #1
RDO 1
RAP #2

Usage Climate Control System Windshield Wipers Ignition, Instrument Panel Air Bag Power Mirrors, Power Door Locks Power Door Locks Power Window Circuit Breaker Power Door Lock Relay PRND321 Display, Odometer, PCM Special Equipment Option, Ignition, Manual Selectable Ride Special Equipment Option Accessory, Cellular Telephone Retained Accessory Power Relay Audio System Not Used

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Center Instrument Panel Utility Block The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column.

Name SEO HTD ST SPARE 4

Usage Special Equipment Option Heated Seats Not Used

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Usage Headliner Wiring Trailer Brake Wiring Power Seats Not Used Manual Transmission Clutch Switch Upfitter Parking Lamps (Relay)

Name VANITY TRAILER PWR ST SPARE 5
CLUTCH UPF PARK LAMP FRT PRK EXPT Not Used (Fuse) SL RIDE SPARE 2
RR PRK LP RR FOG LP SPARE 3
INADV PWR CTSY LP CEL PHONE

Manual Selectable Ride Switch Not Used Not Used (Relay) Not Used (Relay) Not Used Interior Lights Feed Courtesy Lamps Cellular Telephone Wiring

Underhood Electrical Center

Once you remove the cover, you will see some fuses to the top right of the fuse/relay block. These are spare fuses and can be used accordingly. You can remove fuses with a fuse extractor. The fuse extractor is located in the underhood electrical center. To remove fuses if you don’t have a fuse extractor, hold the end of the fuse between your thumb and index finger and pull straight out. See “Engine Compartment Overview” in the Index for more information on its location.

The underhood electrical center is located on the driver’s side of the engine compartment near the battery. Lift the cover for access to the fuse/relay block.

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*1 INJ B--Gasoline Engine and Diesel Engine. *2 ECM I--Gasoline Engine; ECMRPV--Diesel Engine. *3 02 A--Gasoline Engine; FUEL HT--Diesel Engine. *4 02 B--Gasoline Engine; ECM I--Diesel Engine.

Name GLOW PLUG Diesel Glow Plugs and

Usage

CUST FEED STUD #1

ABS IGN A AIR RAP #1

IGN B RAP #2
STUD #2

SPARE

Intake Air Heater Gasoline Accessory Power Accessory Power/Trailer Wiring Feed Anti-Lock Brakes Ignition Switch A.I.R. System Retained Accessory Power, Power Mirrors, Power Door Locks, Power Seat(s) Ignition Switch Not Used Accessory Power/Trailer Wiring Brake Feed Spare Fuse

Name TRL R TRN TRL L TRN IGN 1
INJ B STARTER PARK LP FRT HVAC STOP LP ECM I ECMRPV CHMSL VEH STOP TRL B/U INJ A RR HVAC VEH B/U ENG 1

Usage Right Turn Signal Trailer Wiring Left Turn Signal Trailer Wiring Ignition, Fuel Controls (Relay) Ignition, Fuel Controls Starter (Relay) Parking Lamps Climate Control System Exterior Lamps, Stoplamps PCM Fuel Controls, ECM Center High Mounted Stoplamp Stoplamps, Cruise Control Backup Lamps Trailer Wiring Fuel Controls, Ignition Not Used Vehicle Backup Lamps Engine Controls, Canister Purge, Fuel System

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Usage Electronic Throttle Control A/C Compressor Relay, Rear Window Defogger, Daytime Running Lamps, A.I.R. System Backup Lamps, Automatic Transmission Shift Lock Control System Automatic Transfer Case Rear Window Defogger, Heated Mirrors (Relay) Right Rear Parking Lamps PCM Fuel Pump (Relay) Oxygen Sensors Fuel Heater, Glow Plug and Intake Heater Controls Oxygen Sensors Left Rear Parking Lamps Rear Window Defogger, Heated Mirrors

Name ETC IGN E

B/U LP

ATC RR DEFOG

RR PRK ECM B F/PMP O2 A FUEL HT

O2 B LR PRK RR DEFOG

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Name HDLP TRL PRK RT HDLP DRL HTD MIR LT HDLP A/C AUX PWR

SEO 2

SEO 1

DRL A/C FOG LP FOG LP RADIO

Usage Headlamps (Relay) Parking Lamps Trailer Wiring Right Headlamps Daytime Running Lamps (Relay) Heated Mirrors Left Headlamps Air Conditioning Cigarette Lighter, Auxiliary Power Outlets Special Equipment Option Power, Power Seats, Aux Roof Mnt Lamp Special Equipment Option Power, Aux Roof Mnt Lamp, Cell Phone, OnStarR Daytime Running Lamps A/C (Relay) Fog Lamps Fog Lamps (Relay) Audio System, Instrument Cluster, Climate Control System

Name CIGAR

RT TURN BTSI

LT TURN FR PRK

W/W PMP HORN IGN C

RDO AMP HAZ LP EXP LPS HORN CTSY LP RR WPR TBC

Usage Cigarette Lighter, Auxiliary Power Outlets Right Turn Signals Automatic Transmission Shift Lock Control System Left Turn Signals Front Parking Lamps, Sidemarker Lamps Windshield Washer Pump Horn (Relay) Ignition Switch, Fuel Pump, PRND321 Display, Crank Not Used Exterior Lamps, Hazard Lamps Not Used Horn Interior Lamps Not Used Body Control Module, Remote Keyless Entry, Headlamps

Replacement Bulbs Low-Beam Headlamps High-Beam Headlamps Daytime Running Lamps (DRL) Front Marker Lamp Front Parking and Turn Lamp Rear Marker Lamp, Taillamp and Stop Lamp Taillamp and Stop Lamp** Rear Turn Lamp Rear Turn Lamp ** Back-up Lamp Back-up Lamp ** Center High-Mounted Stoplamp Cargo Lamp

9006
9005

3157KX

194

3157 A 3157

1157
3157
1156
3157
1156
912
912

* For replacement bulbs not listed here, please consult

your dealer.

** Chassis Cab Models

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Capacities and Specifications Please refer to “Recommended Fluids and Lubricants” in the Index for more information. All capacities are approximate. When adding see the refrigerant charge label under the hood for charge capacity information and requirements.

Type V6
V8
V8
V8
V8
V8

VIN Code

Spark Plug Gap

0.060 inches (1.52 mm) 0.060 inches (1.52 mm) 0.060 inches (1.52 mm) 0.060 inches (1.52 mm) 0.060 inches (1.52 mm) 0.060 inches (1.52 mm)

Description 6 bolts (14mm) 8 bolts (14mm) See the Certification/Tire label on the rear edge of the driver’s door or the incomplete vehicle document in the cab.

Torque 140 lb-ft (190 N·m) 140 lb-ft (190 N·m)

Engine VORTEC 4300
VORTEC 4800
VORTEC 5300
VORTEC 6000
VORTEC 6600
VORTEC 8100

Wheels and Tires Model C/K 1500 & C/K 2500

Tire Pressure

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Cooling System Capacity After refill, the level must be rechecked. See “Cooling System” in the Index.

Engine VORTEC 4300 V6
VORTEC 4300 V6
VORTEC 4800 V8
VORTEC 4800 V8
VORTEC 5300 V8
VORTEC 5300 V8** VORTEC 6000 V8
VORTEC 6000 V8* VORTEC 6000 V8
VORTEC 6000 V8* VORTEC 6600 V8
VORTEC 6600 V8
VORTEC 8100 V8
VORTEC 8100 V8

Transmission

Quantity

Automatic

Manual

Automatic

Manual

Automatic Automatic Automatic Automatic

Manual Manual Manual

Automatic

Manual

Automatic

12.6 quarts (11.9 L) 12.9 quarts (12.2 L) 13.4 quarts (12.7 L) 13.7 quarts (13.0 L) 13.4 quarts (12.7 L) 14.9 quarts (14.1 L) 14.8 quarts (14.0 L) 14.4 quarts (13.6 L) 15.2 quarts (14.4 L) 14.8 quarts (14.0 L) 20.7 quarts (19.6 L) 20.3 quarts (19.2 L) 21.1 quarts (20.0 L) 20.7 quarts (19.6 L)

* Vehicles equipped with the optional engine oil cooler. ** Vehicles equipped with the optional air conditioner.

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Fuel Tank Capacity Type Short Bed Long Bed Chassis Cab (Pickup Box Delete) Chassis Cab 3500

Chassis Cab 3500
(California) Chassis Cab 3500
Chassis Cab 3500
(California) Chassis Cab 3500HD Chassis Cab 3500HD

Quantity

26 U.S. gallons (98 L) 34 U.S. gallons (128 L) 34 U.S. gallons (128 L)

27 U.S. gallons (102 L) (front) 23 U.S. gallons (87 L) (rear) 24 U.S. gallons (90 L) (front) 23 U.S. gallons (87 L) (rear) 27 U.S. gallons (102 L) (front) 27 U.S. gallons (102 L) (front)

23 U.S. gallons (87 L) (front) 18 U.S. gallons (68 L) (rear) 23 U.S. gallons (87 L) (front)

Crankcase Capacity After refill, the level must be rechecked. Add enough engine oil so that the fluid is within the proper operating range. See “Engine Oil” in the Index.

VIN Quantity with Filter[

Engine VORTEC 4300 V6 W VORTEC 4800 V8
VORTEC 5300 V8
VORTEC 6000 V8
VORTEC 6600 V8
VORTEC 8100 V8

4.5 quarts (4.3 L) 6.0 quarts (5.7 L) 6.0 quarts (5.7 L) 6.0 quarts (5.7 L) 6.0 quarts (5.7 L) 6.5 quarts (6.1 L)

[Oil filter should be changed at every oil change.

6-82

Normal Maintenance Replacement Parts Replacement part numbers listed in this section are based on the latest information available at the time of printing, and are subject to change. If a part listed in this manual is not the same as the part used in your vehicle when it was built, or if you have any questions, please contact your GM dealer. These specifications are for information only. If you have any questions, see the service manual for the chassis or refer to the body manufacturer’s publications. VIN Code Oil Filter* Engine Air Cleaner/Filter* Passenger Compartment Air Filter Kit** PCV Valve* Spark Plug

PF454
A1518C 52485513

A1518C 52485513

A1519C[ 52485513

A1519C[ 52485513

A1519C[ 52485513

PF47

CV948C

CV948C

CV948C

CV948C

PF59

PF59

PF59

CV769C 41-932*

PTJ14R15***/ PZTR5A15[[

PTJ14R15***/ PZTR5A15[[

PTJ16R15***/ PZTR5A15[[

PTJ16R15***/ PZTR5A15[[

Fuel Filter* Wiper Blades** Wiper Blade Type Wiper Blade Length

*AC DelcoR part number **GM part number ***Denso part number

GF626

15706394

ITTA

22 inches (56.0 cm)

GF626

15706394

ITTA

22 inches (56.0 cm)

GF626

15706394

ITTA

22 inches (56.0 cm)

GF626

15706394

ITTA

22 inches (56.0 cm)

GF626

15706394

ITTA

22 inches (56.0 cm)

[[ NGK [ A1518C high-capacity air cleaner filter may

be substituted.

6-83

Section 7 Maintenance Schedule

This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety, dependability and emission control performance.

7-2
7-4
7-5

Introduction Part A: Scheduled Maintenance Services Scheduled Maintenance -- Gasoline Engines

7-18
7-23
7-25
7-28

Part B: Owner Checks and Services Part C: Periodic Maintenance Inspections Part D: Recommended Fluids and Lubricants Part E: Maintenance Record

7-

7-1

Introduction Your Vehicle and the Environment Proper vehicle maintenance not only helps to keep your vehicle in good working condition, but also helps the environment. All recommended maintenance procedures are important. Improper vehicle maintenance can even affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation can increase the level of emissions from your vehicle. To help protect our environment, and to keep your vehicle in good condition, please maintain your vehicle properly. Maintenance Requirements Maintenance intervals, checks, inspections and recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working condition. Any damage caused by failure to follow recommended maintenance may not be covered by warranty.

Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty and Owner Assistance booklet or your dealer for details.

7-2

How This Section is Organized This maintenance schedule is divided into five parts: “Part A: Scheduled Maintenance Services” shows what to have done and how often. Some of these services can be complex, so unless you are technically qualified and have the necessary equipment, you should let your dealer’s service department or another qualified service center do these jobs.

CAUTION:

Performing maintenance work on a vehicle can be dangerous. In trying to do some jobs, you can be seriously injured. Do your own maintenance work only if you have the required know-how and the proper tools and equipment for the job. If you have any doubt, have a qualified technician do the work.

If you want to get the service information, see “Service and Owner Publications” in the Index.

“Part B: Owner Checks and Services” tells you what should be checked and when. It also explains what you can easily do to help keep your vehicle in good condition. “Part C: Periodic Maintenance Inspections” explains important inspections that your dealer’s service department or another qualified service center should perform. “Part D: Recommended Fluids and Lubricants” lists some recommended products necessary to help keep your vehicle properly maintained. These products, or their equivalents, should be used whether you do the work yourself or have it done. “Part E: Maintenance Record” is a place for you to record and keep track of the maintenance performed on your vehicle. Keep your maintenance receipts. They may be needed to qualify your vehicle for warranty repairs.

7-3

The proper fluids and lubricants to use are listed in Part D. Make sure whoever services your vehicle uses these. All parts should be replaced and all necessary repairs done before you or anyone else drives the vehicle. This schedule is for vehicles that: D carry passengers and cargo within recommended limits. You will find these limits on your vehicle’s Certification/Tire label. See “Loading Your Vehicle” in the Index.

D are driven on reasonable road surfaces within legal

driving limits.

D are driven off-road in the recommended manner.

See “Off-Road Driving With Your Four-Wheel-Drive Vehicle” in the Index.

D use the recommended fuel. See “Fuel” in the Index.

Part A: Scheduled Maintenance Services Using Your Maintenance Schedule We at General Motors want to help you keep your vehicle in good working condition. But we don’t know exactly how you’ll drive it. You may drive very short distances only a few times a week. Or you may drive long distances all the time in very hot, dusty weather. You may use your vehicle in making deliveries. Or you may drive it to work, to do errands or in many other ways. Because of all the different ways people use their vehicles, maintenance needs vary. You may need more frequent checks and replacements. So please read the following and note how you drive. If you have any questions on how to keep your vehicle in good condition, see your dealer. This part tells you the maintenance services you should have done and when you should schedule them. If you go to your dealer for your service needs, you’ll know that GM-trained and supported service people will perform the work using genuine GM parts.

7-4

Scheduled Maintenance -- Gasoline Engines

The services shown in this schedule up to 100,000 miles (166 000 km) should be performed after 100,000 miles (166 000 km) at the same intervals. The services shown at 150,000 miles (240 000 km) and 200,000 miles (332 000 km) should be performed at the same intervals after 150,000 miles (240 000 km) and 200,000 miles (332 000 km). See “Owner Checks and Services” and “Periodic Maintenance Inspections” following.

Footnotes [ The U.S. Environmental Protection Agency or the California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of the vehicle’s useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. + A good time to check your brakes is during tire rotation. See “Brake System Inspection” under “Periodic Maintenance Inspections” in Part C of this schedule.

7-5

Scheduled Maintenance -- Gasoline Engines

Engine Oil and Chassis Lubrication Scheduled Maintenance Change engine oil and filter as indicated by the GM Oil Life Systemt (or every 12 months, whichever occurs first). Reset the system. The system will show you when to change the oil -- usually between 3,000 miles (5 000 km) and 10,000 miles (16 000 km) since your last oil change. Under severe conditions, the indicator may come on before 3,000 miles (5 000 km). Never drive your vehicle more than 10,000 miles (16 000 km) or 12 months without an oil and filter change.

The system won’t detect dust in the oil. So if you drive in a dusty area, be sure to change your oil and filter every 3,000 miles (5 000 km) or sooner if the CHANGE ENGINE OIL message appears. Remember to reset the Oil Life System when the oil and filter have been changed. See “Oil Life System” in the Index for information on resetting. An Emission Control Service. Lubricate chassis components with each engine oil and filter change. Lubricate the front suspension, ball joints, steering linkage, transmission shift linkage, transfer case shift linkage, parking brake cable guides, and brake front axle. Ball joints should not be lubricated unless their temperature is 10_F (-12_C) or higher, or they could be damaged.

7-6

Scheduled Maintenance -- Gasoline Engines

7-7

Scheduled Maintenance -- Gasoline Engines

7-8

Scheduled Maintenance -- Gasoline Engines

7,500 Miles (12 500 km) j Drive axle service. If your vehicle is used to pull a trailer, a rear axle fluid change is recommended after a break-in period. Change the rear axle fluid after the first 500 miles (800 km) of trailer towing. See “Recommended Fluids and Lubricants” in the Index for the proper fluid to use.

j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

DATE

ACTUAL MILEAGE

SERVICED BY:

15,000 Miles (25 000 km) j If Equipped: Replace passenger compartment air filter. If you drive regularly

under dusty conditions, the filter may require replacement more often.

DATE

ACTUAL MILEAGE

SERVICED BY:

j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

7-9

DATE

ACTUAL MILEAGE

SERVICED BY:

DATE

ACTUAL MILEAGE

SERVICED BY:

Scheduled Maintenance -- Gasoline Engines

22,500 Miles (37 500 km) j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

25,000 Miles (41 500 km) j Allison Transmission Only: Change automatic transmission fluid and filters

if the vehicle is mainly driven under one or more of these conditions: – In heavy city traffic where the outside temperature regularly reaches

90_F (32_C) or higher.

– In hilly or mountainous terrain. – When doing frequent trailer towing. – Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

7-10

Scheduled Maintenance -- Gasoline Engines

30,000 Miles (50 000 km) j If Equipped: Replace passenger compartment air filter. If you drive regularly

under dusty conditions, the filter may require replacement more often.

DATE

ACTUAL MILEAGE

SERVICED BY:

j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

j Replace fuel filter.

An Emission Control Service. (See footnote [.)

37,500 Miles (62 500 km) j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

DATE

ACTUAL MILEAGE

SERVICED BY:

45,000 Miles (75 000 km) j If Equipped: Replace passenger compartment air filter. If you drive regularly

under dusty conditions, the filter may require replacement more often.

DATE

ACTUAL MILEAGE

SERVICED BY:

j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

7-11

Scheduled Maintenance -- Gasoline Engines

50,000 Miles (83 000 km) j Except Allison Transmission: Change automatic transmission fluid and filter

if the vehicle’s GVWR is over 8600 lbs. or if the vehicle is mainly driven under one or more of these conditions: – In heavy city traffic where the outside temperature regularly reaches

90_F (32_C) or higher.

– In hilly or mountainous terrain. – When doing frequent trailer towing. – Uses such as found in taxi, police or delivery service. Except Allison Transmission: If you do not use your vehicle under any of these conditions, change the fluid and filter at 100,000 miles (166 000 km). j Allison Transmission Only: If you haven’t used your vehicle under severe

conditions listed previously and, therefore, haven’t changed your automatic transmission fluid, change both the fluid and filter.

j Automatic Transfer Case Only: Change transfer case fluid. 52,500 Miles (87 500 km) j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

7-12

DATE

ACTUAL MILEAGE

SERVICED BY:

DATE

ACTUAL MILEAGE

SERVICED BY:

Scheduled Maintenance -- Gasoline Engines

60,000 Miles (100 000 km) j If Equipped: Replace passenger compartment air filter. If you drive regularly

under dusty conditions, the filter may require replacement more often.

DATE

ACTUAL MILEAGE

SERVICED BY:

j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

j Inspect engine accessory drive belt.

An Emission Control Service.

j Replace fuel filter.

An Emission Control Service. (See footnote[.)

j Inspect Exhaust Gas Recirculation (EGR) system as described in the

service manual. An Emission Control Service.(See footnote [.)

j Inspect Evaporative Control System. Check all fuel and vapor lines and hoses for proper hook-up, routing and condition. Check that the purge valve works properly, if equipped. Replace as needed. An Emission Control Service. (See footnote [.)

7-13

Scheduled Maintenance -- Gasoline Engines

67,500 Miles (112 500 km) j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

DATE

ACTUAL MILEAGE

SERVICED BY:

75,000 Miles (125 000 km) j If Equipped: Replace passenger compartment air filter. If you drive regularly

under dusty conditions, the filter may require replacement more often.

DATE

ACTUAL MILEAGE

SERVICED BY:

j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Allison Transmission Only: Change automatic transmission fluid and filter

if the vehicle is mainly driven under one or more of these conditions: – In heavy city traffic where the outside temperature regularly reaches

90_F (32_C) or higher.

– In hilly or mountainous terrain. – When doing frequent trailer towing. – Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

7-14

Scheduled Maintenance -- Gasoline Engines

82,500 Miles (137 500 km) j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

DATE

ACTUAL MILEAGE

SERVICED BY:

90,000 Miles (150 000 km) j If Equipped: Replace passenger compartment air filter. If you drive regularly

under dusty conditions, the filter may require replacement more often.

DATE

ACTUAL MILEAGE

SERVICED BY:

j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Replace fuel filter.

An Emission Control Service. (See footnote [.)

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

97,500 Miles (162 500 km) j Check rear/front axle fluid level and add fluid as needed. Check constant

velocity joints and axle seals for leaking.

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

DATE

ACTUAL MILEAGE

SERVICED BY:

7-15

Scheduled Maintenance -- Gasoline Engines

100,000 Miles (166 000 km) j Inspect spark plug wires.

An Emission Control Service.

j Replace spark plugs.

An Emission Control Service.

DATE

ACTUAL MILEAGE

SERVICED BY:

j Change automatic transmission fluid and filter if the vehicle’s GVWR

is over 8600 lbs. or if the vehicle is mainly driven under one or more of these conditions: – In heavy city traffic where the outside temperature regularly reaches

90_F (32_C) or higher.

– In hilly or mountainous terrain. – When doing frequent trailer towing. – Uses such as found in taxi, police or delivery service.

j If you haven’t used your vehicle under severe service conditions listed

previously and, therefore, haven’t changed your automatic transmission fluid, change both the fluid and filter.

j Automatic Transfer Case Only: Change transfer case fluid. j Inspect Positive Crankcase Ventilation (PCV) valve.

An Emission Control Service.

7-16

Scheduled Maintenance -- Gasoline Engines

150,000 Miles (240 000 km) j Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs first). See “Engine Coolant” in the Index for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test the cooling system and pressure cap. An Emission Control Service.

j Change five-speed manual transmission fluid

(with 4300 V6 or 4800 V8 engines only).

DATE

ACTUAL MILEAGE

SERVICED BY:

200,000 Miles (332 000 km) j 6000 V8 Engine Only: Change five-speed manual transmission fluid.

DATE

ACTUAL MILEAGE

SERVICED BY:

7-17

Part B: Owner Checks and Services Listed in this part are owner checks and services which should be performed at the intervals specified to help ensure the safety, dependability and emission control performance of your vehicle. Be sure any necessary repairs are completed at once. Whenever any fluids or lubricants are added to your vehicle, make sure they are the proper ones, as shown in Part D.

At the First 100, 1,000 and 6,000 Miles (160, 1 600 and 10 000 km) Check dual wheel nut torque. For proper torque, see “Wheel Nut Torque” in the Index.

At Each Fuel Fill It is important for you or a service station attendant to perform these underhood checks at each fuel fill.

Engine Oil Level Check Check the engine oil level and add the proper oil if necessary. See “Engine Oil” in the Index for further details.

7-18

Engine Coolant Level Check Check the engine coolant level and add DEX-COOLR coolant mixture if necessary. See “Engine Coolant” in the Index for further details.

Windshield Washer Fluid Level Check Check the windshield washer fluid level in the windshield washer tank and add the proper fluid if necessary. See “Windshield Washer Fluid” in the Index for further details.

At Least Once a Month Tire Inflation Check Make sure tires are inflated to the correct pressures. Don’t forget to check your spare tire. See “Tires” in the Index for further details.

Cassette Deck Service Clean cassette deck. Cleaning should be done every 50 hours of tape play. See “Audio Systems” in the Index for further details.

At Least Twice a Year

Restraint System Check Make sure the safety belt reminder light and all your belts, buckles, latch plates, retractors and anchorages are working properly. Look for any other loose or damaged safety belt system parts. If you see anything that might keep a safety belt system from doing its job, have it repaired. Have any torn or frayed safety belts replaced. Also look for any opened or broken air bag coverings, and have them repaired or replaced. (The air bag system does not need regular maintenance.)

Wiper Blade Check Inspect wiper blades for wear or cracking. Replace blade inserts that appear worn or damaged or that streak or miss areas of the windshield. Also see “Wiper Blades, Cleaning” in the Index.

Spare Tire Check At least twice a year, after the monthly inflation check of the spare tire determines that the spare is inflated to the correct tire inflation pressure, make sure that the spare tire is stored securely. Push, pull, and then try to rotate or turn the tire. If it moves, use the wheel wrench/ratchet to tighten the cable. See “Storing the Spare Tire and Tools” in the Index.

Engine Air Cleaner Filter Restriction Indicator Check Your vehicle has an indicator located on the air cleaner in the engine compartment that lets you know when the air cleaner filter is dirty and needs to be changed. Check indicator at least twice a year or when your engine oil is changed, whichever occurs first. See “Air Cleaner” in the Index for more information. Inspect your air cleaner filter restriction indicator more often if the vehicle is used in dusty areas or under off road conditions.

7-19

Weatherstrip Lubrication Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather more frequent application may be required. See “Recommended Fluids and Lubricants” in the Index.

Manual Transmission Check Check the transmission fluid level; add if needed. See “Manual Transmission Fluid” in the Index. Check for leaks. A fluid leak is the only reason for fluid loss. Have the system inspected and repaired if needed.

Automatic Transmission Check Check the transmission fluid level; add if needed. See “Automatic Transmission Fluid” in the Index. A fluid loss may indicate a problem. Check the system and repair if needed.

Hydraulic Clutch System Check Check the fluid level in the clutch reservoir. See “Hydraulic Clutch Fluid” in the Index. A fluid loss in this system could indicate a problem. Have the system inspected and repaired at once.

At Least Once a Year

Key Lock Cylinders Service Lubricate the key lock cylinders with the lubricant specified in Part D.

Body Lubrication Service Lubricate all body door hinges, hood latch assembly, secondary latch, pivots, spring anchor, release pawl, tailgate hinge, tailgate linkage, tailgate handle pivot points, latch bolt, fuel door hinge, locks and folding seat hardware. Part D tells you what to use. More frequent lubrication may be required when exposed to a corrosive environment.

7-20

Starter Switch Check

CAUTION:

When you are doing this check, the vehicle could move suddenly. If it does, you or others could be injured. Follow the steps below.

1. Before you start, be sure you have enough room

around the vehicle.

2. Firmly apply both the parking brake and the regular brake. See “Parking Brake” in the Index if necessary. NOTE: Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts. 3. On automatic transmission vehicles, try to start the engine in each gear. The starter should work only in PARK (P) or NEUTRAL (N). If the starter works in any other position, your vehicle needs service. On manual transmission vehicles, put the shift lever in NEUTRAL (N), push the clutch down halfway and try to start the engine. The starter should work only when the clutch is pushed down all the way to the floor. If the starter works when the clutch isn’t pushed all the way down, your vehicle needs service.

Automatic Transmission Shift Lock Control System Check

CAUTION:

When you are doing this check, the vehicle could move suddenly. If it does, you or others could be injured. Follow the steps below.

1. Before you start, be sure you have enough room around

the vehicle. It should be parked on a level surface.

2. Firmly apply the parking brake. See “Parking Brake”

in the Index if necessary. NOTE: Be ready to apply the regular brake immediately if the vehicle begins to move.

3. With the engine off, turn the key to the RUN position,

but don’t start the engine. Without applying the regular brake, try to move the shift lever out of PARK (P) with normal effort. If the shift lever moves out of PARK (P), your vehicle needs service.

7-21

Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake. D To check the parking brake’s holding ability: With the engine running and transmission in NEUTRAL (N), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.

D To check the PARK (P) mechanism’s holding

ability: With the engine running, shift to PARK (P). Then release the parking brake followed by the regular brake.

Underbody Flushing Service At least every spring, use plain water to flush any corrosive materials from the underbody. Take care to clean thoroughly any areas where mud and other debris can collect.

Ignition Transmission Lock Check While parked, and with the parking brake set, try to turn the ignition key to LOCK in each shift lever position. D With an automatic transmission, the key should turn to LOCK only when the shift lever is in PARK (P). D With a manual transmission, the key should turn to LOCK only when you press the key release button.

On all vehicles, the key should come out only in LOCK.

Parking Brake and Automatic Transmission PARK (P) Mechanism Check

CAUTION:

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

7-22

Part C: Periodic Maintenance Inspections Listed in this part are inspections and services which should be performed at least twice a year (for instance, each spring and fall). You should let your dealer’s service department or other qualified service center do these jobs. Make sure any necessary repairs are completed at once. Proper procedures to perform these services may be found in a service manual. See “Service and Owner Publications” in the Index. Steering and Suspension Inspection Inspect the front and rear suspension and steering system for damaged, loose or missing parts, signs of wear or lack of lubrication. Inspect the power steering lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc.

Exhaust System Inspection Inspect the complete exhaust system. Inspect the body near the exhaust system. Look for broken, damaged, missing or out-of-position parts as well as open seams, holes, loose connections or other conditions which could cause a heat build-up in the floor pan or could let exhaust fumes into the vehicle. See “Engine Exhaust” in the Index. Engine Cooling System Inspection Inspect the hoses and have them replaced if they are cracked, swollen or deteriorated. Inspect all pipes, fittings and clamps; replace as needed. Clean the outside of the radiator and air conditioning condenser. To help ensure proper operation, a pressure test of the cooling system and pressure cap is recommended at least once a year.

7-23

Brake System Inspection Inspect the complete system. Inspect brake lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect other brake parts, including calipers, parking brake, etc. You may need to have your brakes inspected more often if your driving habits or conditions result in frequent braking.

Throttle System Inspection Inspect the throttle system for interference or binding, and for damaged or missing parts. Replace parts as needed. Replace any components that have high effort or excessive wear. Do not lubricate accelerator and cruise control cables. Transfer Case and Front Axle (Four-Wheel Drive) Inspection Every 12 months or at engine oil change intervals, check front axle and transfer case and add lubricant when necessary. A fluid loss could indicate a problem; check and have it repaired, if needed. On manual shift transfer case, oil the control lever pivot point. Check vent hose at transfer case for kinks and proper installation. More frequent lubrication may be required on off-road use.

7-24

Part D: Recommended Fluids and Lubricants NOTE: Fluids and lubricants identified below by name, part number or specification may be obtained from your dealer.

USAGE

Engine Oil

Engine Coolant

Hydraulic Brake System

FLUID/LUBRICANT

Engine oil with the American Petroleum Institute Certified for Gasoline Engines starburst symbol of the proper viscosity. To determine the preferred viscosity for your vehicle’s engine, see “Engine Oil” in the Index.

50/50 mixture of clean, drinkable water and use only GM GoodwrenchR DEX-COOLR or HavolineR DEX-COOLR Coolant. See “Engine Coolant” in the Index. Delco Supreme 11R Brake Fluid (GM Part No. 12377967 or equivalent DOT-3 brake fluid).

USAGE

Windshield Washer Solvent

Hydraulic Clutch System

Power Steering System

Manual Transmission (5-Speed with Low Gear, RPO MW3)

Manual Transmission (5-Speed without Low Gear, RPO MG5)

Manual Transmission (6-Speed)

FLUID/LUBRICANT GM OptikleenR Washer Solvent (GM Part No. 1051515) or equivalent.

Hydraulic Clutch Fluid (GM Part No. 12345347 or equivalent DOT-3 brake fluid). GM Power Steering Fluid (GM Part No. 1052884 - 1 pint, 1050017 - 1 quart, or equivalent). GM Goodwrench Synthetic Manual Transmission Fluid (GM Part No. 12346190 - 1 qt.) or equivalent SAE 75W-85 GL-4
gear oil.

Synchromesh Transmission Fluid (GM Part No. 12345349 or equivalent).

TranSyndt Synthetic Automatic Transmission Fluid (GM Part No. 12378515).

7-25

FLUID/LUBRICANT DEXRONR-III Automatic Transmission Fluid. Multi-Purpose Lubricant, SuperlubeR (GM Part No. 12346241 or equivalent).

LubriplateR Lubricant Aerosol (GM Part No. 12346293 or equivalent) or lubricant meeting requirements of NLGI # 2
Category LB or GC-LB. Chassis Lubricant (GM Part