See also:

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 ...

Adjusting the Speakers (Balance/Fade) (AM-FM Radio and AM-FM Radio with CD)
To adjust the balance or fade: 1. Press or press the knob until the speaker control label displays. 2. To adjust the setting, do one of the following: • Turn the knob. • Press either SEEK ...

Belts
• Belts may need replacing if they squeak or show signs of cracking or splitting. • Trained dealer technicians can inspect the belts and recommend replacement when necessary. ...