See also:

Return to Factory Settings
Select Return to Factory Settings to return all of the vehicle personalization to the default settings. Turn the Menu knob to select Yes or No. Press SELECT to confirm and go back to the l ...

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 co ...

Ending a Call
Press to end a call. ...