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 Care Centre, Mail Code:
CA1-163-005 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7
See also:
Onstar.com
The website provides access to
account information, manages the
OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
sign up for OnStar Vehicle ...
Adjusting the EQ (Equalizer)
For vehicles with an equalizer:
1. Press the TONE button.
2. Select EQ.
3. Select the setting.
Press the BACK button to go
back to the Tone Settings menu. ...
Exterior Care
Cleaning Exterior Lamps/ Lenses
Use only lukewarm or cold water, a soft cloth, and a car washing soap to clean exterior lamps and lenses.
Follow instructions under “Washing the Vehicle” later in ...