When you shift the gear to the R (Reverse) position and if one or more of the below occurs you may have a malfunction in the rear parking assist system.
If this occurs, we recommend that the system be checked by an authorized Kia dealer.
WARNING
Your new vehicle warranty does not cover any accidents or damage to the vehicle or injuries to its occupants related to a parking assist system. Always drive safely and cautiously.
Kia Niro 2017 (DE HEV) Service Manual: In-car Sensor Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Using a remover, remove the crash pad side cover [RH] (A).
3.
Loosen the screw and remove the crash pad plate [RH] (A)
4. ...
Kia Niro (DE HEV) Owners Manual: Do not lie down
To reduce the chance of injuries in the event of an accident and to achieve maximum
effectiveness of the restraint system, all passengers should be sitting up and the
front and rear seats should be in an upright position when the vehicle is moving.
A seat belt cannot provide proper protection ...