Uniform Tire Quality Grading

Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example:

See also:

Roadside Assistance Program
For U.S. purchased vehicles, call 1-800-252-1112; (Text Telephone (TTY): 1-888-889-2438). For Canadian purchased vehicles, call 1-800-268-6800. Service is available 24 hours a day, 365 days a year ...

Climate Controls
The heating, cooling, defrosting, and ventilation for the vehicle can be controlled with these systems. ...

Engine Oil Additives / Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all that is needed for good performance and engine protection. Engine oil system ...