2019 Mazda 6 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Mazda 6 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 6 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 6 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 cruise control issue in my 2019 Mazda 6?

When diagnosing a cruise control issue in your 2019 Mazda 6, it's crucial to follow a methodical approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by examining the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are working properly, since faulty buttons can hinder engagement. Utilizing an OBD-II scanner to check for error codes is also essential, as these codes can provide insights into any underlying problems within the cruise control system. Additionally, verify the functionality of the speed sensors, which are vital for the system's operation. It's important to check the brake and clutch switches as well; if these switches are malfunctioning, they can prevent the cruise control from engaging. Lastly, inspect the wiring connections for any signs of damage or corrosion, as poor connections can significantly affect performance. By following this structured diagnostic approach, you can effectively pinpoint the root cause of the cruise control issue and take the necessary steps to resolve it.

What are the common problems that could cause the cruise control to stop working in a 2019 Mazda 6?

When dealing with cruise control issues in a 2019 Mazda 6, 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, the speed sensor plays a vital role in the cruise control's operation; if it fails to provide accurate speed readings, the system may not function as intended. Another potential issue is a blown fuse, which can disrupt the electrical flow to the cruise control system entirely. Furthermore, problems with the throttle actuator can hinder the system's ability to maintain speed, while issues with the Electronic Control Module (ECM) can affect various vehicle functions, including cruise control. For those looking to troubleshoot these issues, checking the brake pedal switch, speed sensor, and fuses can be a good starting point, but consulting a qualified mechanic is recommended for a thorough diagnosis and repair.

How urgent is it to address the malfunctioning cruise control in my 2019 Mazda 6?

When it comes to the malfunctioning cruise control in your 2019 Mazda 6, 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 jeopardizes your safety but can also lead to decreased fuel efficiency and overall vehicle performance, ultimately resulting in higher repair costs down the line. By promptly addressing the cruise control malfunction, you not only enhance your safety on the road but also protect your vehicle from further damage, ensuring it operates efficiently and reliably.

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