2018 Mazda CX-3 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Mazda CX-3 and How to Fix Them

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Reviewed by
Aisha
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 2018 Mazda CX-3 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 2018 Mazda CX-3 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.

What steps should I take to diagnose the non-functioning cruise control in my 2018 Mazda CX-3?

To effectively diagnose the non-functioning cruise control in your 2018 Mazda CX-3, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse located in the fuse box; a blown fuse is an easy fix that can restore functionality. Next, examine the cruise control buttons on your steering wheel for any signs of damage or sticking, as these can hinder operation. If the buttons are in good condition, proceed to verify the speed sensor, which is crucial for the cruise control system's performance. A malfunctioning speed sensor can disrupt the system's ability to maintain speed. Additionally, check the brake pedal switch, ensuring it is not stuck in the off position, as this switch is integral to the cruise control's operation. If these initial checks do not resolve the issue, utilize an OBD-II scanner to identify any error codes that may indicate specific problems within the system. Should you still be unable to diagnose the issue, it may be time to consult a professional mechanic or visit a dealership for a comprehensive inspection. By following this structured diagnostic approach, you can efficiently identify and address the underlying cause of your cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2018 Mazda CX-3?

When the cruise control in your 2018 Mazda CX-3 stops functioning, it can be frustrating, but understanding the common issues can help you diagnose the problem. 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 may prevent the system from engaging. Additionally, issues with the speed sensor can disrupt the cruise control's ability to maintain a steady speed, as it relies on accurate speed readings to function properly. Another potential issue is a blown fuse within the cruise control system; checking the fuse box for any damaged fuses and replacing them can often resolve the problem. Furthermore, a malfunction in the throttle control system can hinder the cruise control's performance, as it needs to adjust the throttle to maintain speed. Lastly, problems with the Electronic Control Module (ECM), which oversees various vehicle functions including cruise control, can also lead to failures. By systematically checking these components, you can effectively troubleshoot and potentially restore the cruise control functionality in your Mazda CX-3.

How urgent is it to address the malfunctioning cruise control in my 2018 Mazda CX-3?

When it comes to the malfunctioning cruise control in your 2018 Mazda CX-3, the urgency of addressing the issue cannot be overstated. A malfunctioning system can lead to unexpected acceleration or deceleration, creating significant safety hazards while driving. This unpredictability not only endangers you but also other road users. Furthermore, ensuring that all vehicle systems, including cruise control, are functioning properly is crucial for maintaining optimal performance and fuel efficiency. Ignoring these symptoms may result in increased fuel consumption and could potentially lead to damage in other vehicle components, compounding the problem and leading to more costly repairs. Therefore, it is essential to diagnose and repair any cruise control issues promptly, as this proactive approach can prevent further complications and ensure your vehicle remains safe and reliable on the road.

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2018 Mazda CX-3 Cruise Control Issues & Repair Costs