2018 Mazda 3 Cruise Control Isn't Working

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

Find Repair Location
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 2018 Mazda 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 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 steps to diagnose the cruise control issue in a 2018 Mazda 3?

To effectively diagnose a cruise control issue in a 2018 Mazda 3, it's essential to adopt a systematic approach that begins with the simplest checks before progressing to more complex diagnostics. Start 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 not stuck or damaged, as this can prevent proper operation. Utilizing an OBD-II scanner to check for error codes is a crucial step, as these codes can reveal underlying issues that may not be immediately visible. Following this, inspect the speed sensors, which are vital for the cruise control system's performance, ensuring they are functioning correctly. Additionally, verify the brake and clutch switches, as these components are designed to disengage the cruise control when necessary. Finally, test the cruise control module to confirm it is sending and receiving signals properly. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control problem in your Mazda 3.

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

When troubleshooting cruise control issues in a 2018 Mazda 3, it's essential to understand the common problems that may lead to its failure. One of the first things to check is the fuse associated with the cruise control system; a blown fuse can easily disrupt its functionality. Additionally, the brake pedal switch is a critical component that ensures the cruise control disengages when the brakes are applied. If this switch is faulty, it may prevent the system from engaging or disengaging correctly. Another potential issue is a malfunctioning speed sensor, which is vital for maintaining a constant speed; if it fails, the cruise control may not operate as intended. Furthermore, problems with the throttle control system, including issues with the throttle position sensor or actuator, can hinder the cruise control's ability to maintain speed. Lastly, electrical problems such as wiring issues or a malfunctioning control module can also contribute to cruise control failure. By systematically checking these components, drivers can effectively diagnose and resolve the issues affecting their cruise control system.

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

When it comes to the malfunctioning cruise control in your 2018 Mazda 3, the urgency of addressing this issue cannot be overstated. A malfunctioning system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses a significant safety risk not only to you but also to other road users. Additionally, cruise control problems may signal deeper issues within your vehicle's electronic systems or sensors, potentially compromising overall performance and safety. Ignoring these symptoms can lead to increased fuel consumption and may cause further damage to other components, resulting in more costly repairs down the line. Therefore, it is crucial to have the cruise control system diagnosed and repaired by a qualified mechanic as soon as possible. Taking prompt action not only ensures your safety but also helps maintain the integrity and efficiency of your vehicle, ultimately saving you time and money in the long run.

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.

2018 Mazda 3 Cruise Control Not Working | RepairPal