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 ...

Tires
Use a stiff brush with tire cleaner to clean the tires. Notice: Using petroleum-based tire dressing products on the vehicle may damage the paint finish and/or tires. When applying a tire dressing, al ...

At Least Once a Month
Tire Inflation Check Visually inspect your vehicle’s tires and make sure they are inflated to the correct pressures. Do not forget to check the spare tire. Tire Wear Inspection Tire rotation ...