How do i contact hyundai motor america customer service? Contact Hyundai Motor America customer service. You can call Hyundai Motor America at (714) 965-3000 phone number, write an email, fill out a contact form on their website www.hyundaiusa.com, or write a letter to Hyundai Motor America, P.O. Box 20850, Fountain Valley, California, 92728-0850, United States.How do i get in touch with hyundai usa? Contact Hyundai Motor America customer service. You can call Hyundai Motor America at (714) 965-3000 phone number, write an email, fill out a contact form on their website www.hyundaiusa.com, or write a letter to Hyundai Motor America, P.O. Box 20850, Fountain Valley, California, 92728-0850, United States.Where is the corporate office of hyundai in california? Hyundai Motor America Corporate Office & Headquarters 10550 Talbert Ave. Fountain Valley CA 92708 Hyundai Motor America corporate phone number: (714) 965-3000 Average Rating and Total ReviewsWhere is the hyundai design center located? In 1990, Hyundai established the Hyundai Design Center in Fountain Valley, California. The center moved to a new $30 million facility in Irvine, California, in 2003, and was renamed the Hyundai Kia Motors Design and Technical Center.