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.
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Interior
Five occupants get to enjoy soft all-leather seats. Offerings include heated
and ventilated seating and a heated steering wheel. The STS features genuine
eucalyptus wood and aluminum trim.
Eight ...
Keyless Locking
The doors lock after several
seconds if all doors are closed
and at least one keyless access
transmitter has been removed
from the interior of the vehicle.
To customize if the doors
automat ...
Engine Coolant Heater
Vehicles with the engine coolant
heater can use this option in cold
weather conditions at or below
−18°C (0°F) for easier starting and
better fuel economy during engine
warm-up. Plug i ...