AM and FM radio signals are broadcast from transmitter towers located around your city. They are intercepted by the radio antenna on your vehicle. This signal is then received by the radio and sent to your vehicle speakers.
When a strong radio signal has reached your vehicle, the precise engineering of your audio system ensures the best possible quality reproduction. However, in some cases the signal coming to your vehicle may not be strong and clear.
This can be due to factors, such as the distance from the radio station, closeness of other strong radio stations or the presence of buildings, bridges or other large obstructions in the area.
Kia Niro 2017 (DE HEV) Service Manual: Stop Lamp Switch Troubleshooting
Troubleshooting
1.
Part diagnosis
Items
Cause
Symptom
Switch fuse
Faulty fuse connection, Damaged fuse
–
...
Kia Niro 2017 (DE HEV) Service Manual: Specifications
Specification
Item
Specification
Ultrasonic sensor
Voltage rating
DC 12 V
Detecting range
11.8 - 47.2 in. (30 - 120 cm)
Operation voltage
DC 9 - 16 V
...