2021 Mitsubishi Eclipse Cross Cruise Control Isn't Working

Fixing Cruise Control Malfunctions in 2021 Mitsubishi Eclipse Cross

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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 2021 Mitsubishi Eclipse Cross 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 Mitsubishi Eclipse Cross 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.

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 2021 Mitsubishi Eclipse Cross?

To effectively diagnose a cruise control issue in a 2021 Mitsubishi Eclipse Cross, 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, as a blown fuse can easily disrupt functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, since faulty buttons can lead to engagement issues. Utilizing an OBD-II scanner to scan for error codes is a crucial step, as these codes can pinpoint specific malfunctions within the system. Following this, verify the functionality of the vehicle's speed sensors, which are vital for the cruise control to operate correctly. Additionally, examine the brake pedal switch, as a malfunction here can prevent the cruise control from engaging altogether. Finally, inspect the wiring connections associated with the cruise control system for any signs of damage or loose connections. By following this diagnostic approach, you can efficiently identify and address the underlying issues affecting the cruise control system in your Mitsubishi Eclipse Cross.

What are the common problems that could cause the cruise control to stop working in a 2021 Mitsubishi Eclipse Cross?

When the cruise control in your 2021 Mitsubishi Eclipse Cross ceases to function, it can be frustrating, but understanding the common issues can help you diagnose the problem effectively. 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 may prevent the system from engaging at all. Additionally, issues with the speed sensor can disrupt the cruise control's operation, as it relies on accurate speed data to maintain your desired pace. Another potential issue is a blown fuse within the cruise control system; replacing a blown fuse can often restore functionality with minimal effort. Furthermore, a malfunctioning throttle actuator can hinder the system's ability to maintain speed, while problems with the Electronic Control Module (ECM) can lead to broader system failures. By identifying these common problems, you can take the necessary steps to troubleshoot and potentially resolve the cruise control issues in your vehicle.

How urgent is it to address the non-functioning cruise control in a 2021 Mitsubishi Eclipse Cross?

When faced with a non-functioning cruise control in your 2021 Mitsubishi Eclipse Cross, it is crucial to recognize the urgency of the situation. While it may seem like a minor inconvenience, a malfunctioning cruise control can signal deeper issues within the vehicle's electronic systems or sensors, which could compromise overall performance and safety. Ignoring this problem not only risks further damage to your vehicle but may also lead to complications that could affect other critical systems. Moreover, a properly functioning cruise control enhances driving comfort and fuel efficiency, particularly on long journeys. Therefore, addressing the issue promptly is essential to maintain the vehicle's integrity and ensure a safe driving experience. By taking action now, you can prevent potential safety hazards and costly repairs down the line, making it a wise decision for any DIY enthusiast.

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