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:
What to Add
Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids
and Lubricants on page 11‑12.
Always clean the brake fluid reservoir cap and the area around the cap before
re ...
Memory Features
On vehicles with the memory feature, the “1” and “2” buttons on the outboard
side of the driver seat are used to manually save and recall the driver seat and
outside mirror positions. Th ...
Ending a Call
Press to end a call. ...