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 ...

Entering the Personalization Menus
1. Press CONFIG to access the Configuration Settings menu. 2. Turn the TUNE/MENU knob to highlight Vehicle Settings. Press the CONFIG button until Vehicle is highlighted on vehicles with a navigati ...

Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has chan ...