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:

Fuel Gauge
Metric English When the ignition is on, the fuel gauge shows about how much fuel the vehicle has left in the fuel tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel ...

Sun Visors
Pull the sun visor down or unhook it and move it to the side to reduce glare. Visor Vanity Mirror Lift the cover to use the mirror and turn the lamps on. ...

English and Metric Unit Conversion
To change the display units between English and metric units, see Driver Information Center (DIC) on page 5‑23 for more information. ...