Fuel
Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline.
Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com.
The eighth digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies the vehicle's engine. The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN).
See also:
Instrument Panel Overview
A. Air Vents .
B. Headlamp High/Low-Beam Changer.
Turn and Lane-Change Lever. See Turn and Lane-Change Signals . Driver Information
Center (DIC) Buttons. See Driver Information Center (DIC) .
...
Auto Rear Defog
If equipped, this will allow you to
turn the auto rear defog on or off.
This feature will automatically turn
on the rear defogger when it is cold
outside.
Press SELECT when Auto Rear
Defog i ...
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not o ...