2018 Hyundai Kona Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Hyundai Kona and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2018 Hyundai Kona cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2018 Hyundai Kona cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2018 Hyundai Kona?

When troubleshooting the non-functioning cruise control in a 2018 Hyundai Kona, it's important to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex issues. Begin by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and straightforward problem to resolve. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder the system's ability to engage. It's also essential to verify the speed sensor's functionality, as it plays a critical role in maintaining a consistent speed. Utilizing a diagnostic scanner to check for error codes can help identify specific malfunctions within the cruise control system. Additionally, ensure that the brake lights are functioning properly, since a malfunctioning brake light switch can disable the cruise control feature. Take the time to inspect the wiring and connections for any signs of damage or corrosion that could disrupt signal transmission. Finally, if all other components appear to be in working order, consider testing the cruise control module itself, as it may need repair or replacement. By adhering to this structured approach, you can effectively diagnose and potentially resolve the issues affecting your vehicle's cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2018 Hyundai Kona?

When the cruise control in your 2018 Hyundai Kona ceases to function, there are several common issues you can troubleshoot on your own. Start by checking the brake pedal switch, as a faulty switch can disrupt the system's ability to engage or disengage. Next, inspect the speed sensor; if it’s malfunctioning, it may provide incorrect speed readings, leading to cruise control failure. Additionally, a blown fuse could be the culprit, so examining the fuse box for any damaged fuses is a wise step. Don’t overlook the throttle control system, as any malfunctions here can prevent the cruise control from maintaining speed. Lastly, consider any electrical problems, such as wiring issues or a faulty control module, which can also impede the cruise control's operation. By systematically checking these components, you may be able to identify and resolve the issue without needing to visit a mechanic.

How urgent is it to address the malfunctioning cruise control in my 2018 Hyundai Kona?

When it comes to a malfunctioning cruise control system in your 2018 Hyundai Kona, the urgency of addressing the issue cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. Ignoring these symptoms not only jeopardizes your safety but also that of other drivers and pedestrians. Moreover, delaying repairs can exacerbate the problem, potentially leading to more extensive damage to your vehicle's systems and resulting in higher repair costs down the line. Therefore, it is crucial to have the cruise control system inspected and repaired by a qualified mechanic or an authorized Hyundai service center as soon as possible. Taking prompt action not only ensures your safety but also helps maintain the overall health of your vehicle, preventing further complications in the future.

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