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:
Automatic Operation
AUTO (Automatic): When automatic operation is active, the system controls the inside temperature, the air delivery, and the fan speed.
Use the steps below to place the entire system in automatic mode ...
Starting the Vehicle
1. Aim the RKE transmitter at the vehicle.
2. Press and release
.
3. Immediately after completing Step 2, press and hold
until the turn signal lamps flash.
When the vehicle starts, the parking ...
Using Softkeys to Control a USB Storage Device or iPod
The five softkeys below the radio display are used to control the functions listed below.
To use the softkeys:
1. Press the first or fifth softkey below the radio display to display the functions li ...