Engine Heater

The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up.

Plug in the coolant heater at least four hours before starting the vehicle. An internal thermostat in the plug end of the cord will prevent engine coolant heater operation at temperatures above −18°C (0°F).

See also:

Introduction
Important: Keep engine oil at the proper level and change as recommended. Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty and Owner ...

Starting the Engine
Place the transmission in the proper gear. Notice: The engine is designed to work with the electronics in the vehicle. If you add electrical parts or accessories, you could change the way the engin ...

Headlamps on Reminder
If you leave the exterior lamp buttons for the headlamps or parking lamps on, remove the key from the ignition and open the driver’s door, you will hear a continuous warning chime. The chime w ...