See also:

OnStar® Steering Wheel Controls
Your vehicle may have a Talk/Mute button that can be used to interact with OnStar® Hands-Free Calling. On some vehicles, you may have to hold the button for a few seconds and give the command †...

Customer Assistance Offices
Buick encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail Buick, the letter should be addressed to: United States — Customer Assist ...

Head Restraint Removal and Reinstallation
The rear outboard head restraints can be removed if they interfere with the proper installation of the child restraint. To remove the head restraint: 1. Partially fold the seatback forward. See Rear ...