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:
Engine Coolant Temperature Gauge
Metric
English
This gauge shows the engine coolant temperature.
It also provides an indicator of how hard the vehicle is working. During a majority of the operation, the gauge reads 100°C (210 ...
Fog Lamps
The fog lamps control is located on the turn/lane change lever.
Use the fog lamps for better vision in foggy or misty conditions.
FOG (Fog Lamps): Turn the fog lamp
band on the lever to and re ...
Tow/Haul Mode
4-Speed Automatic Transmission
6-Speed Automatic Transmission
Vehicles with an automatic transmission have a Tow/Haul Mode. The Tow/Haul Mode adjusts the transmission shift pattern to reduce shi ...