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:
When the Light Flashes First and Then Is On Steady
If the light flashes for about a
minute and then stays on, there
may be a problem with the TPMS.
If the problem is not corrected, the
light will come on at every ignition
cycle. See Tire Pres ...
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays and a chime sounds when the cooling system temperature
gets too hot and the engine further enters the engine coolant protection mode. See
Engine Over ...
Engine Air Cleaner/Filter
See Engine Compartment Overview for the location of the engine air
cleaner/filter.
Inspect the air cleaner/filter at the scheduled maintenance intervals and replace
it at the first oi ...