2008 Mazda 6 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2008 Mazda 6 and How to Fix Them

Find Repair Location
Reviewed by
Bo Fader
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 2008 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 2008 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.

What are the steps to diagnose the non-functioning cruise control in a 2008 Mazda 6?

To effectively diagnose the non-functioning cruise control in your 2008 Mazda 6, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the fuse associated with the cruise control system, as a blown fuse is a common and easily rectifiable issue. Next, evaluate the cruise control switch on the steering wheel to ensure it is operational, since a malfunctioning switch can prevent engagement. Following this, check the brake pedal switch, which is crucial for the cruise control's functionality; if this switch is faulty, it may inadvertently deactivate the system. Utilizing an OBD-II scanner to scan for error codes can provide valuable insights into any underlying issues affecting the cruise control. Additionally, inspect the speed sensor, as it is vital for the system's performance, ensuring it accurately detects the vehicle's speed. Lastly, examine the vacuum lines for any leaks or damage, as these can significantly impact the cruise control's operation. By methodically working through these steps, you can effectively identify and address the root cause of the cruise control malfunction in your Mazda 6.

What are the common problems that could cause the cruise control to stop working in a 2008 Mazda 6?

When troubleshooting the cruise control system in a 2008 Mazda 6, it's essential to understand the common problems that may lead to its failure. One of the first things to check is the fuse; a blown fuse can easily disrupt the cruise control functionality, so inspecting the fuse box for any issues is a practical starting point. Additionally, the brake pedal switch plays a crucial role in the system's operation, as it disengages the cruise control when the brake is applied. If this switch is faulty, it may prevent the cruise control from engaging or disengaging correctly. Another potential culprit is the speed sensor, which relays the vehicle's speed to the cruise control system; any malfunction here can result in erratic behavior or complete failure of the system. Furthermore, problems with the throttle control system, such as a defective throttle position sensor, can hinder the cruise control's ability to maintain speed. Lastly, don't overlook electrical issues, including wiring problems or a malfunctioning cruise control module, as these can also significantly impact the system's performance. By systematically addressing these common issues, you can effectively diagnose and potentially resolve the cruise control problems in your Mazda 6.

How urgent is it to address the non-functioning cruise control in a 2008 Mazda 6?

When considering the urgency of fixing a non-functioning cruise control in a 2008 Mazda 6, it is crucial to recognize the potential safety risks involved. A malfunctioning cruise control system can lead to erratic vehicle behavior, such as unexpected acceleration or deceleration, which poses a significant danger, particularly during highway driving. Additionally, the absence of this feature can detract from driving comfort, making long journeys more exhausting and less enjoyable. It is advisable to seek a professional diagnostic check to accurately identify the underlying issue, as this can prevent further damage and costly repairs down the line. Moreover, timely maintenance not only enhances your driving experience but also helps preserve the resale value of your vehicle, making it more appealing to future buyers. Therefore, while it may not seem like an immediate emergency, addressing the cruise control issue promptly is essential for ensuring safety, comfort, and the overall longevity of your Mazda 6.

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.

2008 Mazda 6 Cruise Control Issues & Repairs | RepairPal