2009 Ford Flex Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2009 Ford Flex

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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 2009 Ford Flex 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 2009 Ford Flex 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.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

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 non-functioning cruise control on a 2009 Ford Flex?

To effectively diagnose the non-functioning cruise control on a 2009 Ford Flex, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex issues. Begin by examining the fuse associated with the cruise control system, as a blown fuse is a straightforward fix that can often resolve the problem. Next, inspect the wiring for any signs of damage or loose connections, as these can disrupt the electrical flow necessary for the cruise control to operate. Following this, test the cruise control switch located on the steering wheel; a malfunctioning switch is a common culprit in cruise control failures. If these initial checks do not reveal the issue, utilize an OBD-II scanner to identify any error codes that may indicate specific problems within the system. Additionally, assess the speed sensors, as they play a crucial role in maintaining the vehicle's speed, and any malfunction here can directly impact cruise control functionality. Lastly, if your vehicle employs a vacuum-operated system, inspect the vacuum lines for leaks or damage, as these can also lead to operational failures. By methodically working through these steps, you can effectively diagnose and address the issues affecting your Ford Flex's cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2009 Ford Flex?

When troubleshooting the cruise control system in a 2009 Ford Flex, it's essential to consider several common problems that could be causing the malfunction. One of the primary culprits is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if this switch is malfunctioning, it can prevent the system from engaging. Additionally, issues with the speed sensor can disrupt the cruise control's ability to maintain a steady speed, leading to erratic performance. Another potential issue is a blown fuse within the cruise control system, which can easily be checked by inspecting the fuse box for any damaged fuses. Furthermore, the cruise control module itself may be at fault; if it fails to send the correct signals, the system will not operate as intended. Lastly, vacuum leaks in the cruise control system can also hinder its functionality, so it's advisable to inspect the vacuum lines for any signs of damage. By systematically addressing these common issues, you can effectively troubleshoot and potentially restore the cruise control functionality in your Ford Flex.

How urgent is it to address the non-functioning cruise control in a 2009 Ford Flex?

Addressing the non-functioning cruise control in your 2009 Ford Flex should not be overlooked, even if it may not seem like an immediate safety concern. While the absence of this feature does not directly compromise critical systems like brakes or steering, it can signal underlying electrical issues that, if left unresolved, could lead to more significant problems down the line. Ignoring the malfunction could result in increased driver fatigue during long trips, as the convenience of maintaining a steady speed is lost, potentially affecting your overall driving experience and fuel efficiency. Moreover, early diagnosis and repair of the cruise control system can prevent minor issues from escalating into costly repairs, ensuring the longevity and reliability of your vehicle. Therefore, it is advisable to investigate and address the cruise control malfunction promptly to maintain the overall health and performance of your Ford Flex.

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Troubleshooting 2009 Ford Flex Cruise Control Problems