Kia Soul 2020 Owner's Manual page 111

Safety features of your vehicle
To release the seat belt:
The seat belt is released by pressing
the release button (A) in the locking
buckle. When it is released, the belt
should automatically draw back into
the retractor.
If this does not happen, check the
belt to be sure it is not twisted, then
try again.
3 24
OUM036100R
The seat belt should be locked into
the buckle on each seat cushion to
be properly fastened.
❈ ➀ : Rear right seat belt fastening
buckle
➁ : Rear centre seat belt fastening
buckle
➂ : Rear left seat belt fastening
buckle
OSK3038022L
When using the rear centre seat belt,
the buckle with the "CENTRE" mark
must be used.
OSK3038023L