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:
Rear Safety Belt Comfort Guides
This vehicle may have rear safety belt comfort guides. If not, they are available through your dealer.
The guides may provide added safety belt comfort for older children who have outgrown booster se ...
Playing an Audio CD
1. Press the CD screen button on the Home Page or select CD from the source pop-up
to display the CD main page.
2. From the CD screen, press the Menu screen button to display the menu options.
3. ...
Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicat ...