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:

Trip/Fuel Menu Items
Press the MENU button until Trip/ Fuel Information Menu is displayed. Then press to scroll through the following menu items: ○ Trip 1 ○ Trip 2 ○ Fuel Range ○ Average Fu ...

Adjusting the Speakers (Balance/Fade) (AM-FM Radio and AM-FM Radio with CD)
To adjust the balance or fade: 1. Press or press the knob until the speaker control label displays. 2. To adjust the setting, do one of the following: • Turn the knob. • Press either SEEK ...

Engine Coolant Temperature Gauge
Metric English This gauge shows the engine coolant temperature. Under normal driving conditions the gauge will read approximately 100°C (210°F) or less. If the gauge pointer is near 125°C (26 ...