Reporting Safety Defects toGeneral Motors

In addition to notifying NHTSA (or Transport Canada) in a situation like this, we certainly hope you will notify us.

Please call us at 1-800-521-7300, or write:

Buick Customer Assistance Center
P.O. Box 33136
Detroit, MI 48232-5136

In Canada, please call us at 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:

    Dual Tone Multi-Frequency (DTMF) Tones
    The in-vehicle Bluetooth system can send numbers during a call. This is used when calling a menu-driven phone system. 1. Turn the Menu knob to select Enter Number, then press SELECT. 2. En ...

    Hill Start Assist (HSA)
    Some vehicles have a Hill Start Assist (HSA) feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or re ...

    Roadside Assistance and OnStar
    If you have an active OnStar subscription, press the Q button and the current GPS location will be sent to an OnStar Advisor who will assess your problem, contact Roadside Assistance, and relay y ...