2018 Kia Forte5 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Kia Forte5 and How to Fix Them

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Reviewed by
Andrew Hajjar
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 Forte5 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 Forte5 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 are the steps to diagnose the cruise control issue in a 2018 Kia Forte5?

When diagnosing a cruise control issue in a 2018 Kia Forte5, it's essential to adopt a systematic approach that begins with the simplest solutions before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, as this can prevent proper operation. Utilizing an OBD-II scanner to scan for error codes can provide valuable insights into any underlying issues that may be affecting the cruise control system. Additionally, examining the speed sensors is crucial, as they are integral to the system's performance. Ensure that all wiring connections related to the cruise control are secure and free from damage, as loose or damaged wires can lead to malfunctions. Finally, test the cruise control module to confirm it is functioning correctly, as a faulty module can be the root cause of the problem. If these steps do not resolve the issue, seeking assistance from a professional mechanic with experience in Kia vehicles is advisable for further diagnosis and repair. This methodical approach not only helps in identifying the problem but also saves time and resources in the troubleshooting process.

What are the common problems that could cause the cruise control to stop working in a 2018 Kia Forte5?

When troubleshooting the cruise control system in a 2018 Kia Forte5, 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 the system relies on accurate speed readings to maintain the desired speed. Another potential issue is a blown fuse, which can cut off power to the cruise control system entirely. If the cruise control module itself is defective, it may require repair or replacement to restore operation. Lastly, electrical problems, including wiring issues or a malfunctioning control switch, can also hinder the cruise control's performance. By diagnosing these common issues, you can effectively address the problem and restore the cruise control functionality in your vehicle.

How urgent is it to address the non-functioning cruise control in a 2018 Kia Forte5?

When it comes to the non-functioning cruise control in a 2018 Kia Forte5, the urgency of addressing this issue cannot be overstated. While it may seem like a minor inconvenience, neglecting this problem can lead to significant safety risks and potential damage to your vehicle. Cruise control is designed to enhance your driving experience by maintaining a steady speed, which not only reduces driver fatigue during long trips but also improves fuel efficiency. However, if this system is malfunctioning, it may signal deeper issues within the vehicle's electronic or mechanical systems that could compromise overall performance. For DIY enthusiasts, it’s crucial to recognize that ignoring the cruise control problem could escalate into more severe complications, making it essential to diagnose and repair the issue promptly. Taking action now not only ensures your safety on the road but also helps maintain the integrity of your vehicle, preventing costly repairs down the line. Therefore, if you notice any irregularities with your cruise control, consider investigating the issue further or consulting a professional to avoid any potential hazards.

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2018 Kia Forte5 Cruise Control Issues & Fixes | RepairPal