See also:

Customer Assistance for TextTelephone (TTY) Users
To assist customers who are deaf, hard of hearing, or speech-impaired and who use Text Telephones (TTYs), Buick has TTY equipment available at its Customer Assistance Center. Any TTY user can comm ...

High-Beam On Light
This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer for more information. ...

Setting Cruise Control
Cruise control will not work if the parking brake is set, or if the master cylinder brake fluid level is low. The cruise control light on the instrument panel cluster comes on after the cruise co ...