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:
Automatic Door Locks
Vehicles with an automatic lock/unlock feature enable you to program the vehicle's power door locks. This feature can be programmed through the Driver Information Center (DIC). See Vehicle Personaliza ...
Hood
To open the hood, do the following:
1. Pull the hood release handle with this symbol on it. It is located under the instrument panel on the driver's side of the vehicle.
2. At the front of the veh ...
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.
(Recirculation) ...