OnStar

See also:

Auto Defog
This will allow you to turn the auto defog on or off. Only vehicles with the dual zone climate control will have this option. Press SELECT when Auto Defog is highlighted to open the menu. Tur ...

Customer Assistance for Text Telephone (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 communic ...

How to Wear Safety Belts Properly
This section is only for people of adult size. Be aware that there are special things to know about safety belts and children. And there are different rules for smaller children and infants. If a ...