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 Use
To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 11‑12. Always use the proper fluid.
Notice: Use of the incorrect fluid may damage the vehicle and the damag ...
Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage map ...
Playing from an iPod
This feature supports the following iPod models:
○ iPod nano (1st, 2nd, 3rd, and 4th generation)
○ iPod with video (5.0 and 5.5 generation). Video is not shown; only audio is supported.
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