2019 Mazda CX-3 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Mazda CX-3 and How to Fix Them

Find Repair Location
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 2019 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 2019 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 are the initial diagnostic steps to take when the cruise control isn't working on a 2019 Mazda CX-3?

When faced with a malfunctioning cruise control system in your 2019 Mazda CX-3, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse, as a blown fuse can often be the simplest explanation for the issue. Next, inspect the cruise control switch located on the steering wheel; ensure it is not stuck or damaged, as this can prevent the system from engaging. Utilizing an OBD-II scanner can be beneficial to identify any error codes that may indicate specific problems within the cruise control system. Additionally, verify that your brake lights are functioning correctly, since a faulty brake light switch can inadvertently disable the cruise control. Lastly, examine the vehicle speed sensor, as any malfunction here can directly impact the cruise control's performance. By following these steps, you can effectively diagnose and potentially resolve the cruise control issue on your Mazda CX-3, saving time and money on professional repairs.

What are the common problems that could cause the cruise control to stop working in a 2019 Mazda CX-3?

When troubleshooting cruise control issues in a 2019 Mazda CX-3, it's essential to understand the common problems that may be at play. 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 can prevent the system from engaging. Additionally, speed sensor issues can arise, as an inaccurate reading of the vehicle's speed can disrupt the cruise control's functionality. Another potential problem is a blown fuse within the cruise control system, which can easily be checked and replaced if necessary. Furthermore, a malfunction in the throttle control system, particularly with the throttle position sensor, can hinder the cruise control's ability to maintain speed. The Electronic Control Module (ECM) is also critical; any issues here can lead to significant problems with the cruise control operation. Lastly, wiring problems, such as faulty connections, can disrupt communication between the various components of the cruise control system. By systematically addressing these common issues, you can effectively troubleshoot and potentially resolve the cruise control problems in your Mazda CX-3.

How urgent is it to address the non-functioning cruise control in my 2019 Mazda CX-3?

When your cruise control system fails in your 2019 Mazda CX-3, it is crucial to recognize the urgency of the situation. A malfunctioning cruise control not only diminishes the convenience of maintaining a steady speed during long drives but may also signal deeper issues within your vehicle's systems that could compromise safety and performance. Ignoring this problem could lead to increased driver fatigue, reduced fuel efficiency, and potentially more severe mechanical failures. Moreover, a faulty cruise control system might indicate underlying problems that require immediate attention to prevent further damage or safety hazards. Therefore, it is advisable to have the system inspected and repaired by a qualified mechanic as soon as possible. Prompt action not only ensures the reliability of your vehicle but also contributes to a safer and more comfortable driving experience.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.