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:
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push to try the
call again or try again after driving a
few miles into ...
Engine Overheating
The vehicle has an indicator to warn of engine overheating.
There is an engine coolant temperature warning light on the vehicle's
instrument panel.
See Engine Coolant Temperature Gauge.
If t ...
Trip A or Trip B
Displays the current distance
traveled since the last reset
for each trip odometer in either
kilometers (km) or miles (mi).
Both odometers can be used at
the same time. Reset each trip
odom ...