The contact owns a 2017 Audi Q7. The contact stated that while driving at an undisclosed speed, the message ‘Side Marker light Fault Detected’ was displayed. The contact stated that after a visual inspection, the contact became aware that both side marker lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the side marker light assembly. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 16V642000 (Electrical System, Exterior Lighting); but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was unknown.