2020 Kia K900 Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2020 Kia K900

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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 2020 Kia K900 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 2020 Kia K900 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.

What are the steps to diagnose the cruise control issue in a 2020 Kia K900?

To effectively diagnose a cruise control issue in a 2020 Kia K900, it's essential to adopt 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, as a blown fuse can easily disrupt the system's functionality. Next, examine the cruise control buttons on the steering wheel to ensure they are working correctly, since faulty buttons can hinder engagement. If these initial steps do not resolve the issue, utilize an OBD-II scanner to check for any error codes that may highlight specific malfunctions within the cruise control system. Additionally, assess the vehicle's speed sensors, which are crucial for the proper operation of cruise control. It's also important to verify the brake pedal switch, as a malfunction here can prevent the cruise control from activating. If all these components appear to be functioning correctly, proceed to test the cruise control module to confirm it is sending and receiving signals properly. Should the problem persist after these checks, consulting a professional mechanic or an authorized Kia service center may be necessary for a comprehensive diagnosis and repair. By following this structured diagnostic approach, you can effectively identify and address any cruise control issues in your Kia K900.

What are the common problems that could cause the cruise control to stop working in a 2020 Kia K900?

When dealing with cruise control issues in a 2020 Kia K900, several common problems may be at play. One of the primary culprits is a faulty cruise control switch, which can hinder the system's ability to engage or disengage as intended. Additionally, a blown fuse within the cruise control circuit can disrupt functionality, making it essential to check the fuse box for any damaged fuses. Another potential issue is related to the speed sensor; if this component is malfunctioning, it can prevent the cruise control from maintaining a consistent speed. Furthermore, a malfunctioning brake light switch can cause the cruise control to disengage unexpectedly when the brakes are applied, leading to frustrating driving experiences. Lastly, problems with the throttle actuator can also impede the cruise control's performance, preventing it from holding the desired speed. By understanding these common issues, DIYers can better diagnose and address the problems affecting their Kia K900's cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2020 Kia K900?

Addressing a malfunctioning cruise control in a 2020 Kia K900 is of utmost urgency due to the significant safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, creating hazardous situations, particularly on highways where maintaining a steady speed is crucial. Beyond safety, a malfunctioning cruise control can detract from the overall driving experience, causing discomfort and frustration as drivers struggle to maintain consistent speeds. Additionally, neglecting this issue can adversely affect the vehicle's performance, potentially leading to further complications and costly repairs down the line. Timely intervention not only ensures the vehicle operates efficiently but also serves as a form of preventive maintenance, safeguarding against more serious problems in the future. Therefore, it is essential to prioritize repairs to the cruise control system to ensure both safety and optimal vehicle performance.

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