If you have any additional questions or require further assistance, please contact us. Our team is available from 8:00 a.m. to 5:00 p.m. US Eastern Time (GMT-4).

By Phone:
General inquires, sales and billing related questions: + 1 (248) 784-1888 / +1 (888) 225-5077
Technical Support: + 1 (226) 777-0144 / +1 (888) 508-5335

By Email:
General inquires, sales and billing related questions: ctsinquiry@aiag.org
Technical Support: support@aiagcts.org

By Mail: 
Automotive Industry Action Group
4400 Town Center
Southfield, MI 48075-1104 USA