2018 Kia Niro Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Kia Niro and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2018 Kia Niro 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 Kia Niro 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.

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 steps should I take to diagnose the non-functioning cruise control in my 2018 Kia Niro?

To effectively diagnose the non-functioning cruise control in your 2018 Kia Niro, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located in the fuse box; a blown fuse is an easy fix that can restore functionality. Next, examine the cruise control buttons on your steering wheel for any signs of damage or obstruction, as stuck buttons can prevent the system from engaging. Following this, verify the operation of the speed sensor, as a malfunctioning sensor can disrupt the cruise control's ability to maintain speed. Additionally, check the brake pedal switch, which is essential for the cruise control system to function correctly; ensure it is not stuck in the off position. If these initial checks do not resolve the issue, utilize an OBD-II scanner to identify any error codes that may indicate specific problems within the system. Should these steps fail to yield results, it may be necessary to consult a professional mechanic for a thorough inspection and repair. By following this diagnostic approach, you can efficiently identify and address the underlying issues affecting your cruise control system.

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

When troubleshooting the cruise control system in a 2018 Kia Niro, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it can prevent the system from engaging properly. Additionally, issues with the speed sensor can disrupt the cruise control's functionality, as it relies on accurate speed readings to maintain the desired speed. Another potential issue is a blown fuse within the cruise control system, which can halt its operation entirely and is often a straightforward fix. Furthermore, problems with the throttle control, such as a defective throttle position sensor, can hinder the system's ability to maintain a consistent speed. Lastly, if the Electronic Control Module (ECM) encounters problems, it can affect various vehicle functions, including cruise control. For DIY enthusiasts, diagnosing these issues can be a rewarding challenge, but if the problem persists, consulting a professional mechanic is advisable to ensure a proper resolution.

How urgent is it to address the malfunctioning cruise control in a 2018 Kia Niro?

When dealing with a malfunctioning cruise control in a 2018 Kia Niro, it is essential to recognize the urgency of the situation. Ignoring this issue can lead to serious safety risks, such as unexpected acceleration or deceleration, which could result in accidents or hazardous driving conditions. Additionally, a faulty cruise control system can significantly detract from your driving experience, making it challenging to maintain a steady speed during long trips. Beyond immediate safety concerns, neglecting the problem may lead to further damage to the vehicle's systems, ultimately resulting in more expensive repairs. Therefore, it is highly recommended to consult the vehicle's manual or reach out to a certified Kia service center to assess the situation and take appropriate action. Addressing the malfunction promptly not only ensures your safety but also helps maintain the overall performance and longevity of your vehicle.

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