Onstar.com
The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service.
Get subscription plan pricing and sign up for OnStar Vehicle Diagnostics. Click on the “My Account” tab on the home page.
See also:
Brake Fluid
The brake master cylinder and, on manual transmission vehicles, the clutch hydraulic system use the same reservoir. See Engine Compartment Overview for the location of the reservoir. The reser ...
Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned
and balanced carefully at the factory to give you
the longest tire life and best overall performance.
Adjustments to wheel alignment and tire
ba ...
PhatNoise a segment first
Also available is the first-in-segment Mobile Digital Media Powered by
PhatNoise system. PhatNoise is a wallet-sized, 40-gigabyte hard drive that
installs in the Terraza's overhead rail system. Th ...