GM Service Manual Online
For 1990-2009 cars only

General Motors of Canada Limited warrants to owners of Medium Duty Trucks and Chassis sold in Canada, that the engine (1) was designed, built and equipped so as to conform at the time of sale with the Emission Regulations under the Canadian Environmental Protection Act and (2) is free from defects in materials and workmanship which cause the vehicle to fail to conform with those regulations during the warranty period.

    • For heavy duty gasoline engines, the warranty period is 5 years or 80 000 kilometres (whichever first occurs).
    • For heavy duty diesel engines, the warranty period is 5 years or 160 000 kilometres (whichever first occurs).

Emission-related defects in the genuine GM components listed below including related diagnostic costs, parts, and labour are covered by this warranty. The applicable warranty period shall begin on the date the vehicle is delivered to the first retail purchaser, or, if the vehicle is first placed in service as a demonstrator or company vehicle prior to sale at retail, on the date the vehicle is first placed in such service.

Emission Performance

Some provinces and local jurisdictions have established periodic vehicle Inspection and Maintenance (I/M) programs to encourage proper maintenance of your vehicle. If a provincial I/M program is enforced in your area you may also be eligible for Emission Performance coverage when all of the following three conditions are met:

  1. the vehicle has been maintained and operated in accordance with the instructions for proper maintenance and use set forth in the Owner's Manual, New Vehicle Warranty, or Maintenance Schedule supplied with your vehicle;
  2. the vehicle fails a provincial I/M test during the emission warranty period indicated above; and
  3. the failure results, or will result, in the owner of the vehicle having to bear a penalty or other sanctions (including the denial of the right to use the vehicle) under local, provincial, or federal law.

General Motors of Canada Limited warrants that your dealer will replace, repair, or adjust to GM specifications, at no charge to you, any of the parts listed under the "Emission Warranty Parts List" later in this section which may be necessary to conform to the applicable emission standards. Non-GM parts labeled "Certified to EPA Standards" are covered by the Federal Emission Performance Warranty.

Claims Procedure

Make your vehicle available to any authorized GM dealer as soon as possible after failing a provincial I/M test or at any time you suspect a defect in a part. If all the above conditions are met, GM warrants that your dealer will replace, repair, or adjust to GM specifications, at no charge to you, any of the parts listed under "Emission Control Systems Warranty Parts List" which may be necessary to cause your vehicle to conform to the applicable emission standards.

Repairs which do not qualify will be charged to you.

In the event a warranty matter is not handled to your satisfaction, refer to "Customer Satisfaction Procedure" in this booklet under Owner Assistance .

Emission Control Systems Warranty Parts List

Listed below are most of the systems that affect emissions of your engine. Emission control components of these systems are covered by the Emission Control Systems Warranty as applicable. Items that require replacement as scheduled maintenance are covered up to the replacement interval specified in your Maintenance Schedule booklet.

    • Engine Control System
        Powertrain control module, mass air flow sensor, and associated sensor and parts
    • Fuel Management System
        Fuel injection system, fuel rail assembly
    • Air Management System
        Intake manifold, air cleaner assembly, turbocharger assembly, supercharger assembly, throttle body assembly
    • Ignition System
        Ignition parts and associated controls including spark plugs and ignition wires, distributor assembly, electronic ignition control module.
    • Catalytic Converter System
        Catalytic converter, exhaust manifolds, and associated parts
    • Positive Crankcase Ventilation System
        PCV valve and associated parts, oil filler cap
    • Exhaust Gas Recirculation System
        EGR valve and associated parts
    • Secondary Air Injection System
        Air pump
    • Evaporative Emission Control System (Gasoline Engines only)
        Vapour storage canister and associated controls, fuel tank, fuel filler cap, and fuel tank filler pipe
    • Miscellaneous Items Used in Above Components are Covered
        Emission-related actuators, belts, clamps, connectors, ducts, fittings, gaskets, grommets, hoses, housings, mounting hardware, pipes, pulleys, relays, sealing devices, sensor, springs, switches, tubes, valves, and wiring.

If failure of one of the above components results in failure of another part, both will be covered by this warranty. For detailed information concerning specific components covered by the Emission Control Systems Warranty, ask your General Motors Medium Duty Truck dealer.

What Is Not Covered

These Warranty Obligations Do Not Apply To:

    • Conditions resulting from tampering, abuse, neglect or improper maintenance; or
    • Any other item listed under "What Is Not Covered" in the GM Medium Duty Truck Limited Warranty.
    • Parts specified in your maintenance schedule as requiring scheduled replacement are covered up to their first replacement interval or the applicable emission warranty coverage period, whichever comes first. There is no coverage under this warranty for the failure of parts which are not replaced as required. If failure of one of these parts results in failure of another part, both will not be covered under the Emission Control System Warranty.
        For detailed information concerning specific parts covered by these emission control systems warranties, ask your dealer.

THE "OTHER TERMS" PRESENTED IN THE GM MEDIUM DUTY TRUCK LIMITED WARRANTY ALSO APPLY TO THIS WARRANTY.