Last updated on November 13th, 2020 at 06:15 amHow to make a Complaint to Hyundai Motor Company Hyundai Motor Company provide very comprehensive help, support and complaints handling through the ‘help and Support’section of their website including a complaints number on (800) 633-5151 (Mon – Fri 5:00 am – 7:00 pm PST Sat – Sun, 6:30