Hyundai Kona: Cruise Control System / Troubleshooting
| Trouble Symptom Charts |
| Trouble Symptom 1 |
|
Trouble symptom |
Probable cause |
Remedy |
|
The set vehicle speed varies greatly upward or downward "Surging" (repeated alternating acceleration and deceleration) occurs after setting |
Malfunction of the vehicle speed sensor circuit |
Repair the vehicle speed sensor system, or replace the part |
|
Malfunction of ECM |
Check input and output signals at ECM |
|
Trouble symptom |
Probable cause |
Remedy |
|
The CC system is not canceled when the brake pedal is depressed |
Damaged or disconnected wiring of the brake pedal switch |
Repair the harness or replace the brake pedal switch |
|
Malfunction of the ECM signals |
Check input and output signals at ECM |
|
Trouble symptom |
Probable cause |
Remedy |
|
The CC system is not canceled when the shift lever is moved to the "N" position
(It is canceled, however, when the brake pedal is depressed) |
Damaged or disconnected wiring of inhibitor switch input circuit |
Repair the harness or repair or replace the inhibitor switch |
|
Improper adjustment of inhibitor switch |
||
|
Malfunction of the ECM signals |
Check input and output signals at ECM |
|
Trouble symptom |
Probable cause |
Remedy |
|
Cannot decelerate (coast) by using the "SET/–" switch |
Temporary damaged or disconnected wiring of "SET/–" switch input circuit |
Repair the harness or replace the "SET/–" switch |
|
Malfunction of the ECM signals |
Check input and output signals at ECM |
|
Trouble symptom |
Probable cause |
Remedy |
|
Cannot accelerate or resume speed by using the "RES/+" switch |
Damaged or disconnected wiring, or short circuit, or "RES/+" switch input
circuit |
Repair the harness or replace the "RES/+" switch |
|
Malfunction of the ECM signals |
Check input and output signals at ECM |
|
Trouble symptom |
Probable cause |
Remedy |
|
CC system can be set while driving at a vehicle speed of less than 40km/h
(25mph), or there is no automatic cancellation at that speed |
Malfunction of the vehicle-speed sensor circuit |
Repair the vehicle speed sensor system, or replace the part |
|
Malfunction of the ECM signals |
Check input and output signals at ECM |
|
Trouble symptom |
Probable cause |
Remedy |
|
The cruise main switch indicator lamp does not illuminate (although CC system
is normal) |
Damaged or disconnected bulb of cruise main switch indicator lamp |
Repair the harness or replace the part. |
|
Harness damaged or disconnected |
Schematic diagrams
System Block Diagram
Component Parts and Function Outline
Component part
Function
Vehicle-speed sensor, ESP/ABS Control Module
...
Cruise Control Switch Components and components location
Components
1. Left Remote Control Switch
(Audio + Hands free)
2. Right Remote Control Switch
(Cruise + Trip Computer)
...
Other information:
Hyundai Kona (OS) 2018-2025 Owners Manual: Checking the engine coolant level
Check the condition and connections of all cooling system hoses and heater hoses.
Replace any swollen or deteriorated hoses.
The coolant level should be filled between MAX and MIN (or F (Full) and L (Low))
marks on the side of the coolant reservoir when the engine is cool.
If the coolant level is ...
Hyundai Kona (OS) 2018-2025 Owners Manual: Explanation of scheduled maintenance items
Engine oil and filter
The engine oil and filter should be changed at the intervals specified in the
maintenance schedule. If the vehicle is being driven in severe conditions, more
frequent oil and filter changes are required.
Drive belts
Inspect all drive belts for evidence of cuts, cracks, excess ...