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:
Exterior
To adjust the mirrors:
1. Move the selector switch to L (left) or R (right) to choose the driver or
passenger mirror.
2. Press the arrows on the control pad to move each mirror in the desired di ...
TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code. The identification code needs
to be matched to a new tire/wheel position after rotating the tires or replacing
one or more of the TPMS sensors. T ...
Center Dome Lamps
There are front and rear dome lamps.
The dome lamp controls are located in the overhead console. To change the settings,
press the following:
: Turns the lamp off, even when a
door is open.
: ...