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:
DIC Buttons
MENU: Press this button to get to the Trip/Fuel Menu and the Vehicle Information
Menu.
: Use these buttons to scroll through
the items in each menu. A small marker will move along the page as ...
Lamps
Properly working headlamps, taillamps, and brake lamps are important to see and be seen on the road.
• Signs that the headlamps need attention include dimming, failure to light, cracking, or damage ...
Cruise Control Light
The cruise control light is white whenever the cruise control is set, and turns
green when the cruise control is active.
The light turns off when the cruise control is turned off. See Cruise Cont ...