See also:

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 ...

Rear Window Wiper/Washer
The rear wiper and rear wash button is located on the instrument panel below the climate control system. (Rear Wiper): Press to turn the rear wiper on and off. The wiper speed cannot be changed. ( ...

Using Voice Commands During a Planned Route
Cancel Route 1. Push . System responds: “OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?” 2. Say “Yes.� ...