Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors.
Call 1-800-521-7300, or write:
Buick Customer Assistance Center
P.O. Box 33136
Detroit, MI 48232-5136
In Canada, call 1-800-263-3777 (English) or 1-800-263-7854 (French), or
write:
General Motors of Canada Limited
Customer Communication Centre, CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
See also:
Lumbar Adjustment
Lumbar Adjustment
To adjust the lumbar support,
if available:
• Press and hold the front or rear
of the control to increase or
decrease lumbar support.
• Press and hold the top or botto ...
Tire Designations
Tire Size
The following is an example of a
typical passenger vehicle
tire size.
(A) Passenger (P-Metric) Tire:
The United States version of a
metric tire sizing system. The
letter P as th ...
Add-On Electrical Equipment
Notice: Do not add anything electrical to the vehicle
unless you check with your dealer/retailer first. Some
electrical equipment can damage the vehicle and the
damage would not be covered by th ...