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:
Checking the Fluid Level
Prepare the vehicle as follows:
1. Park the vehicle on a level place. Keep the engine running.
2. With the parking brake applied, place the shift lever in P (Park).
3. With your foot on the brake p ...
Video Screen
The video screen is located in the overhead console.
To use the video screen:
1. Push the release button located on the overhead console.
2. Move the screen to the desired position.
When the video ...
Fog Lamps
To replace one of these bulbs:
1. Locate the fog lamp assembly under the front facia.
2. Disconnect the bulb socket from the electrical connector, turn, and pull out
the bulb assembly.
3. Remov ...