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:

Tire Designations
Tire Size The examples show a typical passenger vehicle and light truck tire size. Passenger (P-Metric) Tire (A) Passenger (P-Metric) Tire: The United States version of a metric tire sizing syst ...

Service Parts Identification Label
This label, on the inside of the glove box, has the following information: • Vehicle Identification Number (VIN). • Model designation. • Paint information. • Production options and special ...

Instrument Panel Fuse Block
The instrument panel fuse block access door is located on the driver side edge of the instrument panel. Pull off the cover to access the fuse block. The vehicle may not be equipped with all of t ...