Engine Coolant Heater

The engine heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should be plugged in at least four hours before starting.

An internal thermostat in the plug-end of the cord may exist which will prevent engine coolant heater operation at temperatures above −18°C (0°F).

If the vehicle has a diesel engine, see the Duramax Diesel supplement for more information.

See also:

Mixed-Band Presets
Each page can store six preset stations. The presets within a page can be from different radio bands. To scroll through the pages, press the FAV button located on the faceplate or the FAV screen b ...

Center Console Storage
Pull up on the lever, located on the front of the center console armrest, to slide it forward and backward. To open the armrest storage area, press the button located on the front of the armrest. ...

Guidelines
The RVC system has a guideline overlay that can help the driver align the vehicle when backing into a parking spot. If the vehicle has dual rear wheels, this feature will not be available. To turn t ...