2019 Kia Rio Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Kia Rio 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 2019 Kia Rio 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 2019 Kia Rio 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.

What are the steps to diagnose the cruise control issue in a 2019 Kia Rio?

To effectively diagnose a cruise control issue in a 2019 Kia Rio, it's essential to adopt a systematic approach that begins with the simplest potential problems before progressing to more complex diagnostics. Start by checking the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue that can disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as faulty buttons can prevent the system from engaging. Utilizing an OBD-II scanner to check for error codes can provide critical insights into any underlying issues, guiding your next steps. It's also important to verify the functionality of the vehicle's speed sensors, as they are integral to the cruise control system's operation. Additionally, examine the wiring and connections associated with the cruise control for any signs of damage or corrosion, as these can lead to malfunctions. Finally, testing the cruise control module itself is crucial, as a malfunctioning module can hinder the system's ability to maintain speed. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control issue in your Kia Rio.

What are the common problems that could cause the cruise control to stop working in a 2019 Kia Rio?

When troubleshooting cruise control issues in a 2019 Kia Rio, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if this switch malfunctions, it can prevent the system from engaging. Additionally, speed sensor issues can disrupt the cruise control's ability to maintain a steady speed, as the system relies on accurate speed readings to function correctly. Another potential problem is a blown fuse within the cruise control system, which can easily be checked and replaced if necessary. Throttle control malfunctions can also hinder cruise control performance, as the system needs to adjust throttle input to maintain speed. Furthermore, problems with the Electronic Control Module (ECM) can affect various vehicle functions, including cruise control, so ensuring the ECM is functioning properly is crucial. Lastly, inspect the wiring for any damage or loose connections, as faulty wiring can lead to significant malfunctions. By systematically addressing these issues, you can effectively troubleshoot and potentially resolve the cruise control problems in your Kia Rio.

How urgent is it to address the non-functioning cruise control in my 2019 Kia Rio?

When your 2019 Kia Rio's cruise control is not functioning, it is crucial to recognize the urgency of the situation. This feature not only enhances driving comfort by allowing you to maintain a steady speed, but it also plays a role in your vehicle's overall performance and safety. A malfunctioning cruise control system may signal deeper electronic or sensor issues that could compromise other critical functions of your car. Ignoring this problem could lead to unexpected speed fluctuations, increasing the risk of accidents or breakdowns on the road. Moreover, the longer you wait to address the issue, the more likely it is that you could incur additional damage, resulting in more costly repairs. Therefore, it is highly advisable to consult a qualified mechanic promptly to diagnose and resolve the cruise control malfunction, ensuring your vehicle remains safe and reliable for your journeys.

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