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:
Towing with a Stability Control System
When towing, the sound of the stability control system might be heard. The system
is reacting to the vehicle movement caused by the trailer, which mainly occurs during
cornering. This is normal wh ...
What to Use
When windshield washer fluid needs to be added, be sure to read the manufacturer's instructions before use. Use a fluid that has sufficient protection against freezing in an area where the temperature ...
Cellular Phone Usage
Cellular phone usage may cause interference with the vehicle's radio.
This interference may occur when making or receiving phone calls, charging the phone's battery, or simply having the phone on.
T ...