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:
Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get hot and no ...
Exiting the Feature Settings Menu
The feature settings menu will be exited when any of the following occurs:
• The vehicle is no longer in ON/RUN.
• The trip/fuel or vehicle information DIC buttons are pressed.
• The end of t ...
Off-Road Recovery
The vehicle's right wheels can drop off the edge of a road onto the shoulder while driving. Follow these tips:
1. Ease off the accelerator and then, if there is nothing in the way, steer the vehicl ...