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:
Adding and Removing Categories
Categories cannot be added or removed while the vehicle is moving faster than 8 km/h (5 mph).
To add or remove a category:
1. Press the MENU button.
2. Press the softkey located below the XM CAT ta ...
Symbols
The navigation system may have a feature that allows for viewing parking assist symbols on the navigation screen while using the RVC. The Ultrasonic Rear Park Assist (URPA) system must not be disabled ...
Maintenance Records
After the scheduled services are performed, record the date, odometer
reading, who performed the service, and the type of services performed in the boxes provided. Retain all maintenance
receipts. ...