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:
Jump Starting
For more information about the vehicle battery, see Battery on page 10‑26.
Jump starting can be used on vehicles with run&-down batteries by using jumper
cables and another vehicle.
WARN ...
DVD Distortion
Video distortion can occur when operating cellular phones, scanners, CB radios, Global Position Systems (GPS)*, two-way radios, mobile faxes, or walkie talkies.
It might be necessary to turn off the ...
When to Check Power Steering Fluid
The power steering fluid does not need to be checked unless there is a leak in
the system or you hear an unusual noise. Have the system inspected and repaired
if there is a fluid loss. ...