The sensor detects the distance to the vehicle ahead.
If the sensor is covered with dirt or other foreign matter, the vehicle to vehicle distance control may not operate correctly.
Always keep the area in front of the sensor clean.
Kia Niro 2017 (DE HEV) Service Manual: Repair procedures
Removal
1.
Disconnect the battery negative cable.
2.
Turn the steering wheel so that the front wheels are facing straight
ahead.
3.
Remove the driver airbag module.
(Refer to Restraint - "Driver Airbag (DAB) ...
Kia Niro (DE HEV) Owners Manual: To turn off the speed limit control, do one of the following
Press the CRUISE & SPEED LIMIT MODE switch.
Turn the ignition off.
If you press the cancel O switch once, the set speed limit will cancel, but it
will not turn the system off. If you wish to reset the speed limit, move the lever
up (to RES+) or down (to SET-) to the desired speed.
...