2020 Mazda CX-5 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2020 Mazda CX-5 and How to Fix Them

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Reviewed by

Bo Fader

Written by RepairPal Car Genius

Updated January 14, 2025

30% chance it's the

Sensor

25% chance it's the

Control Module

25% chance it's the

Throttle

20% chance it's

Something else

The most common reasons a 2020 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.

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RepairPal Certified shops can diagnose and repair your 2020 Mazda CX-5 electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

How much does it cost to fix a 2020 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 diagnostic steps to take when the cruise control isn't working on a 2020 Mazda CX-5?

When your cruise control isn't functioning on a 2020 Mazda CX-5, it's important to approach the problem methodically to identify the root cause. Begin by checking the cruise control fuse, as a blown fuse can disrupt the entire system. Next, inspect the cruise control buttons on the steering wheel; if they are unresponsive, this could be the source of the issue. It's also crucial to verify that the vehicle's speed sensor is operational, since the cruise control relies on accurate speed readings to maintain set speeds. Utilizing an OBD-II scanner can help you scan for any error codes that may indicate specific malfunctions within the cruise control system. Lastly, ensure that your brake lights are functioning properly, as a faulty brake light switch can inadvertently disable the cruise control. By following these steps, you can effectively diagnose common issues with your cruise control system and determine whether further professional assistance is needed.

What are the common problems that could cause the cruise control to stop working in a 2020 Mazda CX-5?

When dealing with cruise control issues in a 2020 Mazda CX-5, it's crucial to identify the common problems that may be causing the malfunction. A primary concern is the brake pedal switch, which is designed to disengage the cruise control when the brake is pressed; if this switch is faulty, it can prevent the system from activating. Additionally, the speed sensor plays a vital role in cruise control functionality; if it fails to accurately detect the vehicle's speed, the system may not work as intended. Another issue to consider is a blown fuse within the cruise control circuit, which can be easily checked and replaced to restore functionality. Moreover, problems with the throttle control system, such as a malfunctioning throttle position sensor, can disrupt the cruise control's ability to maintain a steady speed. Lastly, electrical issues, including damaged wiring or poor connections, can also lead to cruise control failure. By understanding and addressing these common problems, you can effectively troubleshoot and potentially fix the cruise control system in your Mazda CX-5.

How urgent is it to address the malfunctioning cruise control in my 2020 Mazda CX-5?

Addressing a malfunctioning cruise control in your 2020 Mazda CX-5 is crucial for both safety and vehicle integrity. When cruise control fails, it can lead to unpredictable acceleration or deceleration, creating a hazardous driving environment that could endanger you and others on the road. Additionally, a malfunctioning system can detract from the comfort of long drives, making your journeys less enjoyable. Beyond immediate safety concerns, neglecting this issue may exacerbate the problem, potentially affecting other electronic systems in your vehicle and leading to more extensive and costly repairs down the line. Therefore, it is essential to prioritize the repair of your cruise control system to ensure a safe and pleasant driving experience.

Related 2020 Mazda CX-5 Problems

Read about related problems experienced by other Mazda CX-5 drivers like you.

Mazda CX-5 traction control light activates at low speeds causing sluggish performance

Some Mazda CX-5 owners report experiencing sluggish performance when the traction control light activates at low speeds. This issue may indicate a trouble code stored in the traction control system, which is designed to maintain vehicle control when wheels lose traction. A common cause for the traction control light activation is faulty wheel speed sensors, which are essential for both the traction control and tire pressure monitoring systems. Additionally, a failing traction control module can trigger the TCS warning light, signaling a serious problem that requires immediate attention. Some owners also find that issues like faulty wheel bearings can affect wheel performance, leading to the activation of the traction control light when pressure is applied to the gas pedal. To mitigate these issues, it is advisable to check the wheel speed sensors, inspect the traction control module, and ensure that wheel bearings are in good condition. If problems persist, consulting a qualified mechanic is recommended to diagnose and resolve the underlying causes effectively.

1 model year affected

2 others reported problem

0 comments

Mitsubishi Diamante cruise control malfunction after drive line obstruction removal

Some Mitsubishi Diamante owners report experiencing cruise control malfunctions after removing a drive line obstruction, often linked to issues with the control module, sensor, or switch. These problems may stem from failed components that prevent the cruise control system from engaging or holding speed, despite power being available to the dash and fuse. Additionally, throttle actuation issues, such as a faulty throttle position sensor, can lead to the engine's computer overcompensating with fuel, which may result in black exhaust from the tailpipe. Owners are advised to thoroughly troubleshoot the cruise control system and inspect key components like the control module, sensor, and throttle to identify any damage or malfunction caused during the obstruction removal process.

4 model years affected

See More 2020 Mazda CX-5 Problems

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