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:
Using the USB Port
Radios with a USB port can control a USB storage device or an iPod® using the radio buttons and knobs.
See “Playing an MP3” in CD Player on page 7‑16 or CD/DVD Player on page 7‑22 fo ...
Traction Control System (TCS)/StabiliTrak® Light
The StabiliTrak system or the Traction Control System (TCS) indicator/warning
light comes on briefly when the engine is started. If the light does not come on,
have the vehicle serviced by your ...
Checking the Fluid Level
Prepare the vehicle as follows:
1. Park the vehicle on a level place. Keep the engine running.
2. With the parking brake applied, place the shift lever in P (Park).
3. With your foot on the brake p ...