See also:

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 Detroi ...

Power Tilt Wheel and Telescopic Steering Column
For vehicles with a power tilt control, it is located on the left hand side of the steering column. To adjust the power tilt wheel: • Push the control up or down to tilt the steering whe ...

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...