Engine Coolant Heater

The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the coolant heater at least four hours before starting the vehicle. An internal thermostat in the plug-end of the cord will prevent engine coolant heater operation at temperatures above −18°C (0°F).

See also:

Navigating an iPod or USB Device on the Music Navigator Screen (Vehicles with a Navigation System)
1. Press and release or to select the next or previous track within the selected category. 2. Press and hold or to move quickly through the tracks within the selected category. 3. Press and re ...

Returning the Seat to the Seating Position
To return the seatback to the seating position: 1. From the rear of the vehicle, raise the seatback to the upright position using the pullstrap on the back of the third row seat, or lift the seatback ...

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 changed, OnSta ...