Warranty

• For heavy duty gasoline engine vehicles,
the emission warranty period is 5 years or
50,000 miles, whichever comes first.
• For heavy duty diesel engine vehicles,
the emission warranty period is 5 years
or 100,000 miles, whichever comes first.
Any authorized Buick dealer will, as necessary
under these warranties, replace, repair, or adjust
to GM specifications any genuine GM parts
that affect emissions.
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 placed in
such service.
Owner’s Warranty Responsibilities
As the vehicle owner, you are responsible for the
performance of the scheduled maintenance listed in
your owner manual. GM recommends that you
retain all maintenance receipts for your vehicle, but
GM cannot deny warranty coverage solely for the
lack of receipts or for your failure to ensure the
performance of all scheduled maintenance.
You are responsible for presenting your vehicle to
a GM dealer selling your vehicle line as soon
as a problem exists. The warranted repairs should
be completed in a reasonable amount of time,
not to exceed 30 days.
As the vehicle owner, you should also be aware
that GM may deny warranty coverage if your
vehicle or a part has failed due to abuse, neglect,
improper or insufficient maintenance, or
modifications not approved by GM.
If you have any questions regarding your rights and
responsibilities under these warranties, you should
contact the Customer Assistance Center at
1-800-222-1020 or, in California, write to:
State of California Air Resources Board
Mobile Source Operations Division
P.O. Box 8001
El Monte, CA 91731-2990
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