Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.
See also:
Engine Oil
For diesel engine vehicles, see “Engine Oil” in the Duramax Diesel Supplement.
To ensure proper engine performance and long life, careful attention must be paid to engine oil.
Following these si ...
Service Parts Identification Label
This label, on the inside of the glove box, has the following information:
• Vehicle Identification Number (VIN).
• Model designation.
• Paint information.
• Production options and special ...
Turning XM Album Art On or Off
1. From the Home Page press the Config screen button or the CONFIG button on
the faceplate.
2. Select Radio Settings from the Config Menu list.
3. Select XM Album Art to turn on or off. ...