See also:

Engine Coolant Heater
The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below 0°F (−18°C). Vehicles with an engine coolant he ...

Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has chan ...

Heated and Ventilated Seats
On vehicles with heated and ventilated seats, the ignition must be on to use the feature. Driver’s Side Buttons shown The buttons are located on the front doors. (Heated Seat Cushion and S ...