GM Service Manual Online
For 1990-2009 cars only

The warranty coverages are summarized below.

New Vehicle Limited Warranty

Bumper-to-Bumper (Includes Tires)

    â€¢ Coverage is for the first 4 years or 50,000 miles, whichever comes first.

Sheet Metal

    â€¢ Corrosion coverage is for the first 4 years or 50,000 miles, whichever comes first.
    â€¢ Rust-through coverage is for the first 6 years or 100,000 miles, whichever comes first.

6.6L DURAMAXâ„¢ Diesel Engine (If Equipped)

    â€¢ Coverage is for the first 3 years or 36,000 miles, whichever comes first. It then has a $100.00 deductible charge after the 3 years or 36,000 miles up to 5 years or 100,000 miles, whichever comes first.

Emission Control System Warranty*

* For light duty trucks see "How to Determine the Applicable Emissions Control System Warranty" under Emission Control Systems Warranty for more information.

Federal

    â€¢ Gasoline Engines
       - Defects and performance for cars and light duty truck emission control systems are covered for the first 2 years or 24,000 miles, whichever comes first. From the first 2 years or 24,000 miles to 4 years or 50,000 miles defects in material or workmanship continue to be covered under the New Vehicle Limited Warranty Bumper-to-Bumper coverage explained previously.
       - Catalytic converters and powertrain control modules are covered for the first 8 years or 80,000 miles, whichever comes first.
       - Defects and performance for heavy duty truck emission control systems are covered for the first 5 years or 50,000 miles, whichever comes first.
    â€¢ 6.6L DURAMAXâ„¢ Diesel Engines are covered for the first 5 years or 100,000 miles, whichever comes first.

California

    â€¢ Gasoline Engines
       - Defects and performance for cars, light duty, and medium duty truck emission control systems are covered for the first 3 years or 36,000 miles, whichever comes first. From the first 3 years or 36,000 miles to 4 years or 50,000 miles defects in material and workmanship continue to be covered under the New Vehicle Limited Warranty Bumper-to-Bumper coverage explained previously.
       - Specified components for cars or light duty trucks equipped with light duty or medium duty truck emission control systems are covered for the first 7 years or 70,000 miles, whichever comes first.
       - Defects and performance for heavy duty truck emission control systems are covered for the first 5 years or 50,000 miles, whichever comes first.
    â€¢ 6.6L DURAMAXâ„¢ Diesel Engines are covered for the first 5 years, 100,000 miles, or 3,000 hours of operation, whichever comes first.

Noise Emissions

    â€¢ Coverage is for applicable vehicles weighing over 10,000 lbs. based on the GVWR only, for the entire life of the vehicle.