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:
Overview
For vehicles equipped with the MyLink® or IntelliLink® infotainment system, see
the separate MyLink/ IntelliLink Features and Functions Guide for more information.
Keeping your eyes on the road ...
Fuel System Messages
FUEL LEVEL LOW
This message displays and a chime sounds if the fuel level is low. Refuel as soon as possible. See Fuel Gauge on page 5‑13 and Fuel on page 9‑40 for more information.
TIGH ...
Airbag On-Off Light
If the vehicle has an airbag on-off switch, it also has a passenger airbag status indicator located in the overhead console.
United States
Canada and Mexico
When the vehicle is started, the pas ...