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:
Pairing Information
• A Bluetooth phone with MP3 capability cannot be paired to the vehicle as a phone and an MP3 player at the same time.
• Up to five cell phones can be paired to the Bluetooth system.
• The pai ...
Compass Zone
The zone is set to zone eight upon leaving the factory. Your dealer will set the correct zone for your location.
Under certain circumstances, such as during a long distance cross-country trip or movi ...
Cellular Phone Usage
Cellular phone usage can cause interference with the vehicle's radio. ...