Kia Cadenza Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Kia Cadenza 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Kia Cadenza 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 Kia Cadenza 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.

Troubleshooting Cruise Control Issues in a Kia Cadenza

When troubleshooting cruise control issues in a Kia Cadenza, it's essential to adopt a systematic diagnostic approach. Begin by checking the simplest potential causes, such as inspecting the fuse associated with the cruise control system. A blown fuse is a common and easily fixable issue that can often be overlooked. Next, examine the brake components, including the brake light and brake switch, as malfunctions here can directly impact cruise control functionality. If these components are functioning correctly, turn your attention to any engine-related problems, particularly if the check engine light is illuminated, as these can also disrupt cruise control operations. Following this, inspect the sensors and throttle system for any signs of malfunction, as these are critical for the cruise control to operate smoothly. Finally, if all simpler diagnostics have been ruled out, consider evaluating the control module for faults. By following this structured approach, you can effectively identify and resolve the underlying issues affecting your Kia Cadenza's cruise control system.

What Could Cause the Cruise Control to Malfunction in a Kia Cadenza?

When dealing with cruise control malfunctions in a Kia Cadenza, it's crucial to understand the common problems that may arise. One of the primary culprits is a failed control module, sensor, or switch, which can disrupt the system's functionality. Additionally, throttle actuation issues can prevent the cruise control from engaging properly. A simple yet often overlooked cause is a blown fuse; checking and replacing the fuse associated with the cruise control system can sometimes resolve the issue quickly. Furthermore, if the Smart Cruise Control sensor is misaligned, it may require adjustment, which typically necessitates professional assistance from a Kia dealer. Lastly, keep an eye out for warning lights on the dashboard, as these indicators can signal malfunctions that need immediate attention. By systematically addressing these potential issues, DIYers can effectively diagnose and potentially fix cruise control problems in their Kia Cadenza.

Why is the Cruise Control Not Working in a Kia Cadenza?

When your Kia Cadenza's cruise control fails to operate, it's crucial to address the issue promptly, as neglecting it can lead to safety risks and further complications. Common causes include a malfunctioning control module, faulty sensors, or issues with the switches, all of which can disrupt the system's functionality. Additionally, problems with throttle actuation or a blown fuse may prevent the cruise control from engaging. It's also important to check the brake pedal switch, as a defect here can inadvertently disable the cruise control. In older models, a broken vacuum line could be the culprit, affecting the system's performance. By identifying and resolving these issues quickly, you not only restore the convenience of cruise control but also ensure a safer driving experience, preventing potential accidents or costly repairs down the line.

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