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
(Light Duty Trucks Only)
State and Federal agencies may require different
emission control system warranty for light duty trucks
depending on:
• Whether the truck is certified with a light duty or
heavy duty emission control system
• Whether the truck is certified for California
emissions in addition to Federal emissions
To determine emissions eligibility: locate the emission
control label in the engine compartment on the air
cleaner assembly or on the engine. The language on
the bottom left side of the label will describe if equipped
with a light, medium, or heavy duty emission control
system.
All light duty trucks are eligible for Federal Emissions
Control System 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 Control System
Warranty Coverage.
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