One problem related to front seat belt buckle assembly has been reported for the 1999 Hyundai Sonata. The most recently reported issues are listed below.
Cruise control was activated at 60 mph when applying brakes to avoid an accident, but consumer lost control of vehicle and hit retainer wall head-on. Vehicle still maintained 60 mph, and brakes did not deactivate cruise control. Eventually, vehicle stopped after consumer turned it off. Passenger's side air bag did not deploy/ seat belt did not lock up, and cruise control would not deactivate.
| Front Seat Belt Anchorage problems | |
| Front Seat Belt Warning Light problems | |
| Front Seat Belt Buckle Assembly problems | |
| Seat Belt problems |