Hyundai 2012 Sonata - Manual (Page 41)

Safety features of your vehicle
22 3
When using the rear center seat belt, the
buckle with the “CENTER” mark must be
used. To release the seat belt:
The seat belt is released by pressing the
release button (1) in the locking buckle.
When it is released, the belt should auto-
matically draw back into the retractor.
If this does not happen, check the belt to
be sure it is not twisted, then try again. Stowing the rear seat belt
The rear seat belt buckles can be stowed
in the pocket between the rear seatback
and cushion when not in use.
OYF039022N B210A01NF-1 OYF039021N