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:
Folding the Seatback
To fold the second row seatbacks:
1. Remove anything on or under the seat.
2. Place the armrest in the upright position, and unfasten the safety belt.
3. Pull forward on the reclining seatback stra ...
Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi).
See Maintenance Schedule on page 11‑3.
Tires are rotated to achieve a uniform wear for all tires.
The first rotation is the most important. ...
Universal Remote System Programming
Vehicles with the Universal Remote System will have these buttons located in the headliner.
This system provides a way to replace up to three remote control transmitters used to activate devices su ...