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:
Initial Drive Information
This section provides a brief overview about some of the important features that
may or may not be on your specific vehicle. For more detailed information, refer
to each of the features which can ...
Traction Control Operation
The traction control system is part of the StabiliTrak system. Traction control limits wheel spin by reducing engine power to the wheels (engine speed management) and by applying the brakes as necessa ...
Trailer Towing
Three important considerations have to do with weight:
• The weight of the trailer
• The weight of the trailer tongue
• The total weight on the vehicle's tires ...