1. Position the vehicles close enough that the jumper cables will reach, but do not allow the vehicles to touch.
2. Avoid fans or any moving parts in the engine compartment at all times, even when the vehicles are turned off.
3. Turn off all electrical devices such as radios, lights, air conditioning, etc. Put the vehicles in P (Park, for dual clutch transmission vehicle) or neutral (for manual transmission vehicle), and set the parking brakes. Turn both vehicles OFF.
4. Connect the jumper cables in the exact sequence shown in the illustration. First connect one jumper cable to the red, positive (+) jumper terminal of your vehicle (1).
5. Connect the other end of the jumper cable to the red, positive (+) battery/jumper terminal of the assisting vehicle (2).
6. Connect the second jumper cable to the black, negative (-) battery/ chassis ground of the assisting vehicle (3).
7. Connect the other end of the second jumper cable to the black, negative (-) chassis ground of your vehicle (4).
Do not allow the jumper cables to contact anything except the correct battery or jumper terminals or the correct ground. Do not lean over the battery when making connections.
8. Start the engine of the assisting vehicle and let it run at approximately 2,000 rpm for a few minutes. Then start your vehicle.
If your vehicle will not start after a few attempts, it probably requires servicing. In this event please seek qualified assistance. If the cause of your battery discharging is not apparent, have your vehicle checked by an authorized HYUNDAI dealer. Disconnect the jumper cables in the exact reverse order you connected them:
1. Disconnect the jumper cable from the black, negative (-) chassis ground of
your vehicle (4).
2. Disconnect the other end of the jumper cable from the black,
negative (-) battery/chassis ground of the assisting vehicle (3).
3. Disconnect
the second jumper cable from the red, positive (+) battery/jumper terminal of the
assisting vehicle (2).
4. Disconnect the other end of the jumper cable from the
red, positive (+) jumper terminal of your vehicle (1).
Hyundai Kona (OS) 2018-2024 Owners Manual: Parking Distance Warning (Reverse/Forward) system precautions
The Parking Distance Warning (Reverse/Forward) system may not sound consistently
depending on the speed and shapes of the objects detected.
The Parking Distance Warning (Reverse/Forward) system may malfunction
if the vehicle bumper height or sensor installation has been modified or damaged.
...
Hyundai Kona (OS) 2018-2024 Service Manual: Rail Pressure Sensor (RPS) Repair procedures
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the RPS at idle and various engine speed.
Condition
Output Voltage (V)
...