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:

Noise Control System
The following information relates to compliance with federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 4 536 kg (10,000 lbs). The noise control syste ...

Armrest Retaining Strap
WARNING A rear center armrest that is not properly stowed and secured could fall forward during a sudden stop or collision. The armrest could contact an infant secured in a rear&-facing child ...

Connecting a USB Storage Device or iPod®
The USB port can be used to control an iPod or a USB storage device. To connect a USB storage device, connect the device to the USB port located in the center console or on the instrument panel. To ...