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:
Checking Coolant
The vehicle must be on a level surface when checking the coolant level.
Check to see if coolant is visible in the coolant surge tank. If the coolant
inside the coolant surge tank is boiling, do not ...
Services Not Included in Roadside
Assistance
• Impound towing caused by violation of any laws.
• Legal fines.
• Mounting, dismounting or changing of snow tires,
chains, or other traction devices.
• Towing or services for vehicles dr ...
Parking Brake
The parking brake pedal
is located to the left of
the regular brake pedal,
near the driver door.
To set the parking brake, hold the regular brake pedal
down, then push the parking brake ped ...