To assist customers who are deaf, hard of hearing, or speech-impaired and who use Text Telephones (TTYs), Chevrolet has TTY equipment available at its Customer Assistance Center. Any TTY user in the U.S. can communicate with Chevrolet by dialing: 1-800-833-2438. TTY users in Canada can dial 1-800-263-3830.
Customer Assistance
Offices#03-08-46-004N: Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only) - (Aug 30, 2013)
Subject:Part Restriction and Ordering Process Information for OnStar® Vehicle CommunicationInterface Modules (VCIM) (GMNA Only)Models: 2012-2014 GM Cars and TrucksAll Equipped with OnStar® RPO UE1 This bulletin has been revised to add the 2014 model year and update ESC contact information.Please ...