See also:

Languages
The vehicle supports English, French (Canadian), and Spanish. The default language is English. To change the display language, see Vehicle Personalization for more information. ...

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 ...

Erasing Speed Memory
The cruise control set speed is erased from memory by pressing or if the ignition is turned off. ...