2017 Ram ProMaster 2500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Ram ProMaster 2500 and How to Fix Them

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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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2017 Ram ProMaster 2500 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 2017 Ram ProMaster 2500 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 2017 Ram ProMaster 2500?

When diagnosing a cruise control issue in a 2017 Ram ProMaster 2500, it's crucial to follow a structured approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse is a common and easily fixable problem. Next, examine the cruise control buttons on the steering wheel to ensure they are functioning correctly and not obstructed. Utilizing a diagnostic scanner can help identify any error codes stored in the vehicle's onboard computer, providing insights into potential issues. It's also important to check the speed sensors, as they play a vital role in the cruise control system's operation. Testing the brake pedal switch is another key step, since a malfunction here can interrupt the cruise control functionality. Lastly, inspect the wiring connections for any signs of wear, loose connections, or corrosion that could hinder the system's performance. If these initial steps do not resolve the issue, consulting a professional mechanic with expertise in Ram ProMaster vehicles is recommended for a comprehensive diagnosis and repair.

What are the common problems that could cause the cruise control to stop working in a 2017 Ram ProMaster 2500?

When troubleshooting the cruise control system in a 2017 Ram ProMaster 2500, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the cruise control's functionality, as it relies on accurate speed readings to maintain the desired pace. A blown fuse in the cruise control circuit can also be a simple yet often overlooked cause, so checking for any blown fuses is a good first step. If these components are functioning correctly, the problem may lie within the cruise control module itself, which could require repair or replacement. Lastly, a malfunction in the throttle control system, such as a faulty throttle position sensor, can hinder the cruise control's ability to maintain speed. By systematically addressing these potential issues, you can effectively diagnose and resolve the cruise control problems in your vehicle.

How urgent is it to repair the non-functioning cruise control on a 2017 Ram ProMaster 2500?

When evaluating the urgency of repairing the non-functioning cruise control on a 2017 Ram ProMaster 2500, it is crucial to recognize the potential safety risks associated with a malfunctioning system. A properly functioning cruise control enhances driving safety by allowing the driver to maintain a consistent speed, particularly on long journeys. If the system fails, it may lead to erratic speed changes, increasing the risk of accidents. Additionally, the convenience factor cannot be overlooked; without cruise control, drivers must constantly manage their speed, which can lead to fatigue during extended drives. Furthermore, neglecting this repair could adversely affect the vehicle's resale value, as prospective buyers may view a malfunctioning cruise control as a significant drawback. To ensure safety, comfort, and financial prudence, it is advisable to address the issue promptly, ideally with a professional diagnostic check to identify the root cause and determine the necessary repairs.

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2017 Ram ProMaster 2500 Cruise Control Issues & Solutions