On certain vehicles, the rear parking assist sensors (mounted in the rear bumper) could short circuit.
A short circuit could create a fire risk.
Hyundai will notify owners by mail. The corrective actions for this recall are under development. Hyundai recommends that if the instrument cluster does not work, the transmission shifter is stuck in park, or if you see melted plastic on the rear bumper, you should park the vehicle outside and contact a Hyundai dealer.