Ford C-Max Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Ford C-Max 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 Ford C-Max 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 Ford C-Max 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.

Troubleshooting Cruise Control Issues in a Ford C-Max

When troubleshooting cruise control issues in your Ford C-Max, it's essential to adopt a methodical diagnostic approach. Start by checking the simplest components first, such as the fuses and brake light switches, as these are often the culprits behind malfunctioning cruise control. Ensure that the brake lights are functioning correctly, as a faulty brake switch can prevent the cruise control from engaging. Next, inspect the control module and any related sensors or switches for signs of wear or failure. If these components appear to be in good condition, move on to examining the throttle actuation system, as issues here can also disrupt cruise control functionality. Additionally, keep an eye on the check engine light; if it’s illuminated, it may indicate underlying engine problems that could affect the cruise control system. Finally, if all else fails, consider checking the more complex components like the steering wheel buttons and the clock spring, as these can also lead to cruise control failures. By following this structured approach, you can effectively diagnose and resolve cruise control issues in your Ford C-Max, ensuring a smoother driving experience.

What Are the Common Causes of Cruise Control Malfunction in a Ford C-Max?

When diagnosing cruise control malfunctions in a Ford C-Max, it's essential to consider several common problems that could be at play. A frequently encountered issue is a failed control module, which can disrupt the entire cruise control system. Additionally, sensor or switch failures, particularly with the brake or clutch pedal switches, can prevent the cruise control from engaging properly. It's also important to check the throttle control system and the anti-lock braking system (ABS), as faults in these areas can lead to cruise control failure. In older models, a broken vacuum line may be the culprit, while in newer systems, hidden issues can arise without warning, often linked to the cruise control switch and its interaction with various vehicle modules. Other potential problems include blown fuses, malfunctioning brake lights, and even engine-related issues that can indirectly affect cruise control functionality. By systematically addressing these areas, DIY enthusiasts can effectively troubleshoot and resolve cruise control issues in their Ford C-Max.

Why is the Cruise Control Not Working in a Ford C-Max?

When the cruise control in your Ford C-Max is not functioning, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and potentially escalate into more significant problems. A malfunctioning cruise control system can distract you from driving, especially if it unexpectedly disengages or fails to engage, which could result in loss of vehicle control. Common culprits such as a faulty brake pedal switch or a blown fuse may seem minor, but they can compromise your vehicle's overall performance and safety features. Additionally, if the cruise control is disabled due to an underlying engine issue, it could indicate a more serious problem that, if left unchecked, might lead to costly repairs. Therefore, it’s advisable to conduct a thorough inspection of the cruise control components, including the control module, sensors, and switches, to ensure they are functioning correctly. Taking immediate action not only enhances your driving experience but also safeguards your vehicle's integrity and your safety on the road.

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