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:

2011 GMC Acadia Review
As many SUVs have evolved into what some folks call crossovers, they have also morphed from utilitarian, truck-like vehicles into more luxurious ones. Some dedicated luxury brands have entered the ...

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 ...

Interior
The Yukon's dashboard has the same shape as its GM siblings. That's good news because the domed instrument panel, carlike dashboard and flush-mounted buttons make for a handsome design. This SUV ...