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:

Odometer
The odometer shows how far the vehicle has been driven, in either kilometers or miles. This vehicle has a tamper&-resistant odometer. The digital odometer will read 999,999 if it is turned ba ...

Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps
A. Side Marker Lamp B. Low-Beam Headlamp C. High-Beam Headlamp D. Park/Turn Signal Lamp 1. Open the hood. See Hood on page 10‑5 2. If you are replacing the bulb on the passenger side, remo ...

Weatherstrips
Apply silicone grease on weatherstrips to make them last longer, seal better, and not stick or squeak. See Recommended Fluids and Lubricants on page 11‑12. ...