2019 Mazda CX-5 Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2019 Mazda CX-5 and How to Fix Them

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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 2019 Mazda CX-5 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-5 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 steps to diagnose the cruise control issue in a 2019 Mazda CX-5?

When diagnosing a cruise control issue in a 2019 Mazda CX-5, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex solutions. Begin by inspecting the cruise control fuse, 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 operational, since malfunctioning buttons can prevent the system from engaging. Following this, verify the speed sensor's performance, as it plays a crucial role in maintaining the desired speed; a faulty sensor can lead to significant cruise control problems. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues affecting the system. Additionally, ensure that the brake lights are functioning correctly, as a defective brake light switch can inadvertently disable the cruise control. Lastly, inspect the vacuum lines for any leaks or damage, as these can hinder the system's ability to maintain speed. By methodically addressing these areas, you can effectively identify and resolve the cruise control issue in your Mazda CX-5.

What are the common problems that could cause the cruise control to stop working in a 2019 Mazda CX-5?

When dealing with cruise control issues in a 2019 Mazda CX-5, it's essential to understand the common problems that may arise. One frequent culprit is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it can prevent the system from engaging properly. Additionally, issues with the speed sensor can disrupt the vehicle's ability to maintain a constant speed, leading to cruise control failure. Another potential problem is a blown fuse within the cruise control system, which can halt its operation entirely. Furthermore, a malfunctioning throttle actuator, responsible for controlling engine speed, can also contribute to the issue. Lastly, any electrical problems, such as wiring faults or a defective control module, can significantly impact the functionality of the cruise control system. For those looking to troubleshoot these issues, a careful inspection of these components can help identify the root cause and guide necessary repairs.

How urgent is it to address the malfunctioning cruise control in my 2019 Mazda CX-5?

When it comes to the malfunctioning cruise control in your 2019 Mazda CX-5, the urgency of addressing the issue cannot be overstated. A malfunctioning system can lead to unexpected acceleration or deceleration, creating hazardous driving conditions that could result in accidents. Moreover, such issues may signal deeper problems within your vehicle's electronic systems or sensors, which could compromise other critical functions. Ignoring these symptoms not only risks your safety but can also lead to decreased fuel efficiency and increased maintenance costs over time. By addressing the malfunction promptly, you can prevent further damage to your vehicle and ensure a smoother, safer driving experience. Therefore, it is crucial to have the issue diagnosed and repaired by a qualified mechanic as soon as possible to mitigate potential risks and complications on the road.

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