GM Service Manual Online
For 1990-2009 cars only

What Is Covered

General Motors of Canada Limited will provide for repairs to the vehicle or chassis during the Warranty Period in accordance with the terms, conditions and limitations contained in this booklet.

Warranty Applies

This warranty is for GM Medium Duty Trucks registered in Canada and normally operated in Canada. GM warranty coverages may be void or subject to restrictions on GM vehicles that have been imported/exported for resale.

Repairs Covered

The warranty covers repairs to correct any vehicle or chassis defect related to materials or workmanship occurring during the Warranty Period. Needed repairs will be performed using new or remanufactured parts.

Warranty Period

The Warranty Period for all coverages begins on the date the vehicle is first delivered or put in use and ends at the expiration of the Coverage period.

Base Vehicle Coverage

The base vehicle, except tires, Allison Transmission®, Caterpillar® Engines, and those items listed under "What Is Not Covered" including diesel engine optional equipment, is covered for 2 years, unlimited kilometres.

Frame Rail Coverage

Frame rails, including cross members, are covered for repairs for 5 years, unlimited kilometres.

Caterpillar® Diesel Engine Coverage

Caterpillar® is not warranted by GM. Refer to Warranty Coverage Information Supplied by Caterpillar®.

6.6L DURAMAX® Diesel Engine Components Coverage

For trucks equipped with a 6.6L DURAMAX® Diesel Engine, the diesel engines (except those items listed under "What Is Not Covered") are covered for 5 years or 160 000 kilometres, whichever comes first.

    • Cylinder block and heads and all internal parts, intake and exhaust manifolds, timing gears, timing gear chain or belt and cover, flywheel, harmonic balancer, valve covers, oil pan, oil pump, water pump, engine mounts, seals and gaskets.
    • Diesel Fuel Metering System: injection pump, nozzles, high pressure lines and high pressure sealing devices, left and right common fuel rails, fuel filter assembly, fuel temperature sensor and function block.
    • Glow Plug Control System: control/glow plug assembly, glow plugs, cold advance relay and ECM.
    • Fuel injection control module, integral oil cooler, transmission adapter plate.

Important: Some of the above components may also be covered by the Base and Emission Warranty with no deductible.

7.8L DURAMAX® Diesel Engine Coverage

The 7.8L DURAMAX® Diesel engine is covered for 3 years/unlimited kilometres.

Towing

Towing is covered from a public roadway or highway to the nearest GM dealership, if your vehicle cannot be driven because of a warranted defect. Restrictions may apply for towing where the towing distance exceeds 200 kilometres. Contact your dealer for details.

Obtaining Repairs

To obtain warranty repairs, take the vehicle to a GM Medium Duty Truck dealer handling your vehicle line within the Warranty Period, and request the needed repairs. A reasonable time must be allowed for the dealership to perform the necessary repairs.

Sheet Metal Coverage

Sheet metal panels are covered against corrosion and rust-through as follows:

Corrosion: Body sheet metal panels are covered against rust for 2 years, unlimited kilometres.

Rust-Through: Any body sheet metal panel that rust-through due to corrosion (an actual hole in the sheet metal) continues to be covered for up to 5 years unlimited kilometres. This coverage only applies to the cab sheet metal panels and not to other metal components.

Important: Cosmetic or surface corrosion (resulting from stone chips, dents or scratches in the paint, or failure to repair stone chips, dents or scratches in the paint) is not included in sheet metal coverage.

No Charge

Warranty repairs including Parts, Labour and approved Towing will be made at NO CHARGE (except for the $100 deductible per repair visit payable under the 6.6L Diesel Engine Coverage, after the first 3 years or 60 000 kilometres, whichever comes first).

Accessory Coverages

All GM approved accessories marketed and sold by General Motors of Canada Limited that are permanently installed on a GM vehicle prior to delivery will be covered under the provisions of the GM Medium Duty Truck Limited Warranty. In the event GM accessories are installed after vehicle delivery or are replaced under the new vehicle warranty, they will be covered (parts and labour) for the balance of the vehicle warranty, but in no event less than 12 months/unlimited kilometres (12 months/20 000 kilometres for commercial vehicles).

GM accessories sold over-the-counter, or those not requiring installation, will continue to receive the standard GM Dealer Parts Warranty for 12 months from the date of purchase, parts only.

Notice: This warranty excludes:

Any communications device that becomes unusable or unable to function as intended due to unavailability of compatible wireless service from the wireless communication carrier that provides service for the OnStar® system.

What Is Not Covered

Tires, Allison Transmission® and Caterpillar® Diesel Engines

Tires, and tubes, Allison Transmission® and Caterpillar® Diesel Engines are warranted separately. Refer to the additional warranty publications furnished with your vehicle.

Adjustments Needed Due to Impact

Tire wear, front and rear suspension alignment, and/or tire and wheel balancing due to "curbing" or impact with potholes or other road hazards, are not covered.

Damage Due to Accident, Misuse, or Alteration

Damage caused as the result of any of the following is not covered:

    • Collision, fire, theft, freezing, vandalism, riot, explosion, earthquake, water or flood, windstorm, lightning, or objects striking the vehicle;
    • Misuse of the vehicle such as spinning the wheels, driving over curbs, overloading, racing, or other competition. Proper vehicle use is discussed in the Owner Manual;
    • Alteration or modification to the vehicle including the body, chassis or components, after final assembly by General Motors (which includes rebuilding the vehicle after it has suffered such extensive collision damage in an accident that it was written-off or deemed to be written-off, even if the rebuilt vehicle uses undamaged parts and components from the written-off vehicle);
    • Coverages do not apply if the odometer has been disconnected, its reading has been altered, or kilometrage cannot be determined;
    • Chassis overloading or uneven weight distribution;
    • Cutting, welding, stretching, or shrinking of chassis frame rails or driveline;
    • Addition of aftermarket suspension equipment such as tag axles, springs, or spring helpers, spacer blocks, or air spring;
    • Addition of aftermarket engine and transmission modifications such as blowers, turbochargers, exhaust brakes, exhaust systems, air induction systems, computers (software or hardware modifications), governors, gear splitters, or electric braking devices.

Important: This warranty is void on vehicles currently or previously registered as salvaged, scrapped (irreparable), rebuilt, junked or totaled (written-off) or stolen.

Damage or Corrosion Due to Environment, Chemical Treatments or Aftermarket Products

Damage caused by airborne fallout, salt from sea air, salt or other materials used to control road conditions, chemicals, tree sap, stones, hail, earthquake, water or flood, windstorm, lightning, the application of chemicals or sealants subsequent to manufacture, etc., is not covered. See "Chemical Paint Spotting" under Things You Should Know About the New GM Medium Duty Truck Limited Warranty .

Damage Due to Use of Improper Diesel Fuel (Vehicles Equipped with Diesel Engines)

Use of diesel fuel other than Ultra Low Sulfur Diesel (15 ppm sulfur maximum) or engine oil other than low ash CJ-4 oil will cause permanent damage to the Diesel Particulate Filter (DPF) and related components. This damage is not covered by your warranty. For additional information, please refer to the Owner Manual.

Damage Due to Insufficient or Improper Maintenance

Damage caused by failure to follow the recommended Maintenance Schedule intervals and/or failure to use or maintain fluids, fuel, lubricants, or refrigerants recommended in the Owner Manual is not covered.

Maintenance is the owner's responsibility. General Motors of Canada Limited recommends that you keep all receipts and make them available if questions arise about maintenance.

Maintenance

All vehicles require periodic maintenance. Maintenance services, such as those detailed in the Owner Manual are the owner's expense.

Vehicle lubrication, cleaning, or polishing are not covered. Failure of or damage to components requiring replacement or repair due to vehicle use, wear, exposure to the elements, or lack of maintenance is not covered.

Items such as:

    • Audio System Cleaning
    • Brake Pads and Linings
    • Clutch Linings
    • Coolants and Fluids
    • Filters
    • Keyless Entry Batteries *
    • Limited Slip Rear Axle Service
    • Tire Rotation
    • Wheel Alignment / Balance **
    • Wiper Inserts

are covered only when replacement or repair is the result of a defect in material or workmanship.

* Covered up to 12 months only.

** Maintenance items after 12 000 kilometres.

Extra Expenses

Economic loss or extra expense is not covered.

Examples include:

    • Inconvenience
    • Lodging, meals, or other travel costs
    • Loss of vehicle use
    • Payment for loss of time or pay
    • Storage

Other Exclusions

This warranty excludes any communications device that becomes unusable or unable to function as intended due to unavailability of compatible wireless service from the wireless communication carrier that provides service for the OnStar® system.

Other Terms

This warranty gives you specific legal rights. You may have different rights which vary from province to province according to applicable legislation. This warranty does not exclude or limit those rights but runs concurrently with any such applicable provincial legislation.

General Motors of Canada Limited does not authorize any person to create for it any other condition or liability in connection with these vehicles. Any implied warranty of condition (including any implied warranty or condition of merchantability of fitness for a particular purpose) applicable to this vehicle is limited in duration to the duration of this written warranty. The performance of repairs is the exclusive remedy under this written warranty or any implied warranty or condition.

General Motors of Canada Limited shall not be liable for incidental or consequential damages resulting from breach of this written warranty or any implied warranty or condition.*

* Some provinces do not allow limitations on how long an implied warranty will last or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you.