2021 Ford Transit-350 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2021 Ford Transit-350 and How to Fix Them

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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 2021 Ford Transit-350 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 2021 Ford Transit-350 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 troubleshoot the non-functioning cruise control in a 2021 Ford Transit-350?

When faced with a non-functioning cruise control in your 2021 Ford Transit-350, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can prevent engagement. Following this, verify the functionality of the vehicle's speed sensors, since faulty sensors can disrupt the cruise control system. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific problems affecting the cruise control. Additionally, examine the brake and clutch switches to confirm they are working correctly, as these components are designed to disengage the cruise control when the pedals are pressed. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion. By methodically following these steps, you can effectively troubleshoot and potentially resolve the cruise control issue in your Ford Transit-350.

What are the common problems that could cause the cruise control to stop working in a 2021 Ford Transit-350?

When troubleshooting the cruise control system in a 2021 Ford Transit-350, it's essential to understand the common problems that may lead to its failure. 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 malfunctions, it can prevent the system from engaging. Additionally, a malfunctioning speed sensor can disrupt the cruise control's ability to maintain a set speed, leading to erratic behavior or complete failure. It's also wise to check for a blown fuse in the cruise control circuit, as this can easily interrupt functionality. Other potential issues include throttle control problems, such as a faulty throttle position sensor, which can hinder the system's performance. Furthermore, the Electronic Control Module (ECM) plays a crucial role in managing the cruise control system, and any issues with it can result in operational failures. Lastly, inspect the wiring and connections associated with the cruise control system, as damaged or loose wires can disrupt communication between components. By systematically addressing these common problems, you can effectively diagnose and resolve issues with the cruise control in your Ford Transit-350.

How urgent is it to address the non-functioning cruise control in a 2021 Ford Transit-350?

When it comes to a non-functioning cruise control in a 2021 Ford Transit-350, the urgency of addressing the issue cannot be overstated. While it may not seem like an immediate emergency, a malfunctioning cruise control system can lead to significant safety risks and inconvenience during long drives. This feature is designed to enhance driving comfort by maintaining a steady speed, which not only reduces driver fatigue but also improves fuel efficiency. If the cruise control is not working, it may signal deeper problems within the vehicle's electrical system or sensors, which could escalate if left unchecked. Ignoring this issue can result in more than just discomfort; it can lead to costly repairs down the line and potentially compromise the vehicle's overall functionality. Therefore, it is advisable for DIY enthusiasts to investigate the problem promptly, as addressing it early can prevent further damage and ensure a safer driving experience.

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2021 Ford Transit-350 Cruise Control Issues & Repairs