2020 Ford F-350 Super Duty Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2020 Ford F-350 Super Duty

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Reviewed by
Aisha
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 2020 Ford F-350 Super Duty 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 2020 Ford F-350 Super Duty 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 in a 2020 Ford F-350 Super Duty?

To effectively diagnose the non-functioning cruise control in your 2020 Ford F-350 Super Duty, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue that can halt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are responsive and not malfunctioning, as faulty buttons can prevent engagement. Following this, verify the functionality of the vehicle's speed sensors, since any malfunction here can directly impact cruise control performance. It's also crucial to check the brake pedal switch, which is designed to disengage the cruise control when pressed; a faulty switch can lead to unexpected disengagement. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes that may provide insight into the problem. Lastly, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as compromised wiring can disrupt the necessary signals for proper operation. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control issues.

What are the common problems that could cause the cruise control to stop working in a 2020 Ford F-350 Super Duty?

When troubleshooting cruise control issues in a 2020 Ford F-350 Super Duty, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if it malfunctions, the system may not engage at all. Additionally, a malfunctioning speed sensor can disrupt the cruise control's ability to maintain speed, leading to operational failures. It's also wise to check for a blown fuse, as this can completely disable the cruise control system. Problems with the throttle control system, particularly a faulty throttle position sensor, can further complicate matters, affecting the cruise control's functionality. Lastly, a defective cruise control module itself may be the root cause of the issue. By systematically examining these potential problems, you can effectively diagnose and potentially resolve the cruise control malfunction in your vehicle.

How urgent is it to address the non-functioning cruise control in a 2020 Ford F-350 Super Duty?

When it comes to the non-functioning cruise control in a 2020 Ford F-350 Super Duty, understanding the urgency of the situation is crucial for any DIY enthusiast. While this issue may not present an immediate safety hazard like malfunctioning brakes or engine problems, it can still significantly impact your driving experience. A malfunctioning cruise control can lead to driver fatigue during long trips, as it requires constant manual acceleration, which can be tiring and distracting. Additionally, neglecting this problem can result in increased fuel consumption due to inconsistent speed management, ultimately leading to higher costs at the pump. Furthermore, allowing the issue to persist may cause further damage to the cruise control system, complicating repairs and potentially increasing expenses. Therefore, while it may not seem critical at first glance, addressing the non-functioning cruise control promptly is essential for maintaining comfort, efficiency, and the overall performance of your vehicle. Taking action now can save you time and money in the long run, ensuring that your Ford F-350 operates as intended.

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