2016 Ram ProMaster 3500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 Ram ProMaster 3500 and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2016 Ram ProMaster 3500 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 2016 Ram ProMaster 3500 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.

What are the steps to diagnose the cruise control issue in a 2016 Ram ProMaster 3500?

To effectively diagnose a cruise control issue in a 2016 Ram ProMaster 3500, it's essential to adopt a systematic diagnostic approach that begins with the simplest solutions before progressing to more complex assessments. Start by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, since malfunctioning buttons can lead to control issues. Utilizing a diagnostic scanner to check for error codes is a crucial step, as these codes can pinpoint specific problems within the cruise control system. Following this, examine the speed sensors, as they play a vital role in maintaining the set speed; any malfunction here can hinder the cruise control's performance. Additionally, inspect the wiring and connections related to the cruise control system, as loose or damaged wiring can lead to failures. Finally, test the cruise control module itself, as a faulty module is a common culprit behind cruise control malfunctions. By following this structured approach, you can efficiently identify and address the root cause of the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2016 Ram ProMaster 3500?

When dealing with cruise control issues in a 2016 Ram ProMaster 3500, it's essential to understand the common problems that may arise. One frequent culprit 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. Another potential issue is a malfunctioning speed sensor, which is crucial for the cruise control to maintain the correct speed; if the sensor fails to provide accurate readings, the system may not operate as intended. Additionally, a blown fuse can disrupt the cruise control system, so checking the fuses is a straightforward first step in troubleshooting. If these components are functioning correctly, the problem may lie within the cruise control module itself, which could require repair or replacement if faulty. Lastly, electrical issues, such as damaged wiring or poor connections, can also hinder the cruise control's performance, making it vital to inspect the electrical system thoroughly. By identifying and addressing these common problems, you can effectively troubleshoot and potentially restore the cruise control functionality in your vehicle.

How urgent is it to address the non-functioning cruise control in a 2016 Ram ProMaster 3500?

When it comes to the non-functioning cruise control in a 2016 Ram ProMaster 3500, understanding the urgency of the situation is crucial for any DIY enthusiast. While the immediate safety risks may not be apparent, neglecting this issue can lead to increased driver fatigue during long trips, as constant manual speed control becomes necessary. Additionally, a malfunctioning cruise control system could indicate underlying electrical problems that, if left unaddressed, might escalate into more significant and costly repairs. Therefore, it is advisable to inspect the cruise control system promptly. This not only enhances your driving experience but also helps prevent potential damage to the vehicle's electrical components. By taking the initiative to diagnose and repair the issue, you can ensure that your vehicle remains safe and convenient for all your driving needs.

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