OnStar Services

See also:

Head Restraints
The vehicle’s front seats have adjustable head restraints in the outboard seating positions. WARNING: With head restraints that are not installed and adjusted properly, there is a greater chan ...

Replacement Bulbs
For replacement bulbs not listed here, contact your dealer. ...

Customer Assistance Offices (Mexico)
To contact the Customer Assistance Center (CAC), use the phone numbers listed in this section. Customer assistance is available Monday through Friday, 08:00 to 20:00 hours, and Saturdays from ...