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:
Dual Tone Multi-Frequency (DTMF) Tones
The Bluetooth system can send numbers and the numbers stored as name tags during
a call. You can use this feature when calling a menu&-driven phone system. Account
numbers can also be stored f ...
Power Liftgate 3/4 Mode
To program the liftgate opening height:
1. Turn the liftgate switch to either the MAX , or the 3/4 mode position and
power open the liftgate.
2. Stop the liftgate movement at the desired height by ...
Setting Cruise Control
If the cruise button is on when not in use, it could get bumped and go into cruise when not desired. Keep the cruise control switch off when cruise is not being used.
The cruise control light on the ...