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:
Remote Start Heated Seats
When it is cold outside, the heated seats may turn on automatically during a remote vehicle start. The heated seats will be canceled when the ignition is turned on. Press the desired button to use the ...
Air Conditioning
A/C (Air Conditioning): Press to turn the air conditioning on or off. If the
fan is turned off or the outside temperature falls below freezing, the air conditioning
will not work. When in AUTO, th ...
Power Foldaway
1. Press (A) to fold the mirrors out to the driving position.
2. Press (B) to fold the mirrors in to the folded position. ...