Emission Control Systems Warranties
This section outlines the emission warranties that
General Motors provides for your vehicle 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 the “Emission Warranty Parts List” later
in this section.
How to Determine the Applicable
Emissions Control System Warranty
State and Federal agencies may require different
emissions control systems warranties for light duty
trucks depending on:
• Whether the truck is certified with a light or
heavy duty emission control system.
and/or
• Whetherthe truck is certified for California
emissions in addition to Federal emissions.
Do the following to determine emissions eligibility:
1. Locate the underhood emission control label located
inside the engine compartment on the underside of
the hood, on the air cleaner assembly, or on the
engine.
2. The language on the bottom left side of the label
will describe if equipped with a light, medium,
or heavy duty emission control system.
3. All Light Duty Trucks are eligible for Federal
Emissions Warranty Coverage. If the emissions
control label contains language stating the vehicle
is certified to California emissions standards,
the vehicle is also eligible for California Emissions
Warranty Coverage.
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