See also:

Outside Automatic Dimming Mirror
If the vehicle has this feature, the driver side mirror adjusts for the glare of headlamps behind you. This feature is controlled by the on and off settings on the automatic dimming rearview mir ...

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 comm ...

Ignition Positions
The ignition has four different positions: In order to shift out of P (Park), ignition must be in the ON/RUN and the regular brake pedal must be applied. Notice: Using a tool to force the key to ...