OnStar Services

See also:

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 ...

Power Tilt Wheel and Telescopic Steering Column
For vehicles with a power tilt control, it is located on the left hand side of the steering column. To adjust the power tilt wheel: • Push the control up or down to tilt the steering whe ...

Dome Lamp Override
The dome override button is located below the exterior lamps knob. To turn the dome lamps off, press the button. The dome lamps will remain off when a door is open. This will override the ill ...