Engine Heater
The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up.
Plug in the coolant heater at least four hours before starting the vehicle. An internal thermostat in the plug end of the cord will prevent engine coolant heater operation at temperatures above −18°C (0°F).
See also:
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
• Keep the vehicle serviced and in
good shape ...
Lock Sensor
When all doors are closed and the ignition is off, the vehicle can be locked
by pressing this area on the door handle. This feature will be available for several
minutes after the vehicle has be ...
Place a Call Using a Stored
Number
1. Push . System responds:
“OnStar ready.”.
2. Say “Call <name tag>.” System
responds: “OK, calling
<name tag>.” ...