Warranty

Emission Control Systems Warranty
The emission warranty on your vehicle is issued in
accordance with the U.S. Federal Clean Air Act.
Defects in material or workmanship in GM
emission parts may also be covered under the
New Vehicle Limited Warranty Bumper-to-Bumper
coverage. There may be additional coverage
on GM diesel engine vehicles. In any case, the
warranty with the broadest coverage applies.
What Is Covered
The parts covered under the emission warranty
are listed under “Emission Warranty Parts
List” later in this section.
How to Determine the Applicable
Emissions Control System Warranty
State and Federal agencies may require different
emission control system warranty depending on:
• Whether the vehicle conforms to regulations
applicable to light duty or heavy duty emission
control systems.
• Whether the vehicle conforms to or is certified
for California regulations in addition to U.S.
EPA Federal regulations.
To determine eligibility: Light Duty vehicles with
a Gross Vehicle Weight Rating (GVWR) of
8,500 lbs. or less; Heavy Duty vehicles with a
GVWR of 8,500 lbs. or greater.
All vehicles are eligible for Federal Emissions
Control System Warranty Coverage. If the
emissions control label contains language stating
the vehicle conforms to California regulations,
the vehicle is also eligible for California Emissions
Control System Warranty Coverage.
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