OnStar Additional Information

See also:

Roadside Assistance Program
U.S.: 1-800-252-1112 TTY Users: 1-888-889-2438 Canada: 1-800-268-6800 As the owner of a new Buick, you are automatically enrolled in the Roadside Assistance program. See Roadside Assistance Pr ...

Starting the Engine Using Remote Start
To start the engine using the remote start feature: 1. Aim the RKE transmitter at the vehicle. 2. Press and release . 3. Immediately after completing Step 2, press and hold until the turn ...

Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 ...