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:
Three-Way Calling
Three-way calling must be supported on the cell phone and enabled by the wireless service carrier.
1. While on a call, press .
2. Say “Three-way call.” 3. Use the dial or call command to dial th ...
Parking Brake
Set the parking brake by holding the regular brake pedal down, then pushing down the parking brake pedal.
If the ignition is on, the brake system warning light will come on.
See Brake System Warni ...
Power Windows
WARNING
Leaving children in a vehicle with the keys is dangerous for many reasons. Children or others could be badly injured or even killed.
They could operate the power windows or other controls or ...