2021 Kia Seltos Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2021 Kia Seltos

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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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2021 Kia Seltos 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 2021 Kia Seltos 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 non-functioning cruise control in a 2021 Kia Seltos?

When diagnosing the non-functioning cruise control in a 2021 Kia Seltos, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can directly affect functionality. Following this, verify the operation of the speed sensors, since faulty sensors can disrupt the cruise control system. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are functioning correctly, as these components play a crucial role in engaging the cruise control. Finally, inspect the wiring and connections associated with the cruise control system for any damage or corrosion that could impede performance. By methodically working through these steps, you can effectively identify and address the root cause of the cruise control malfunction in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2021 Kia Seltos?

When the cruise control in your 2021 Kia Seltos stops functioning, it can be frustrating, but understanding the common issues can help you diagnose the problem. One frequent culprit is faulty speed sensors, which are crucial for the system to maintain the desired speed; if these sensors are malfunctioning, the cruise control may not work at all. Another common issue is a malfunctioning brake light switch, as this component is designed to deactivate the cruise control when the brake pedal is pressed. Additionally, a blown fuse can disrupt the electrical flow to the cruise control system, leading to its failure. Throttle control problems, particularly with the throttle position sensor, can also hinder the cruise control's ability to regulate speed effectively. Lastly, issues with the Electronic Control Module (ECM), which oversees various vehicle functions including cruise control, can result in operational failures. If you encounter any of these issues, it’s advisable to consult a qualified mechanic for a thorough diagnosis and repair to restore your cruise control functionality.

How urgent is it to address the malfunctioning cruise control in my 2021 Kia Seltos?

When it comes to the malfunctioning cruise control in your 2021 Kia Seltos, the urgency of addressing this issue cannot be overstated. A malfunctioning system can lead to unpredictable acceleration or deceleration, creating a significant safety hazard, particularly in high-speed driving conditions. Beyond safety concerns, a faulty cruise control can detract from your overall driving experience, making long trips less enjoyable and more stressful. Additionally, neglecting this problem may result in increased fuel consumption, as inconsistent speed control can lead to inefficient driving patterns. Moreover, timely intervention can prevent further damage to your vehicle's systems, potentially saving you from costly repairs down the line. Therefore, it is crucial to have the cruise control issue diagnosed and repaired by a qualified mechanic as soon as possible to ensure your safety and maintain the integrity of your vehicle.

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