2015 Ram 2500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Ram 2500 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2015 Ram 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 2015 Ram 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.

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 steps to diagnose the non-functioning cruise control in a 2015 Ram 2500?

When diagnosing the non-functioning cruise control in a 2015 Ram 2500, it's essential to adopt a systematic diagnostic approach that starts with the most straightforward checks. Begin by inspecting the cruise control fuse, as a blown fuse can often be the simplest explanation for system failure. Next, examine the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, as this can prevent the system from engaging. Following this, check the vehicle's speed sensors, which are critical for the cruise control to operate correctly; any malfunction here can disrupt the entire system. Utilizing a diagnostic scanner to scan for error codes can provide valuable insights into any underlying issues that may not be immediately visible. Additionally, ensure that the brake and clutch switches are functioning properly, as these components are designed to disengage the cruise control when either pedal is pressed. Finally, inspect the wiring connections associated with the cruise control system for any signs of damage or corrosion. By following this structured approach, you can effectively identify and address the root cause of the cruise control malfunction in your Ram 2500.

What are the common problems that could cause the cruise control to stop working in a 2015 Ram 2500?

When troubleshooting cruise control issues in a 2015 Ram 2500, 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 this switch malfunctions, it can prevent the system from engaging. Additionally, issues with the speed sensor can disrupt the cruise control's ability to maintain a steady speed, leading to erratic performance. Another potential problem is a blown fuse within the cruise control system, which can easily be checked and replaced if necessary. Furthermore, a malfunction in the throttle control system can hinder the cruise control's functionality, as it relies on proper throttle operation to maintain speed. Lastly, problems with the Electronic Control Module (ECM) can also affect cruise control performance, as the ECM manages various vehicle functions, including cruise control. By systematically addressing these common issues, you can effectively diagnose and resolve cruise control problems in your Ram 2500, ensuring a smoother driving experience.

How urgent is it to address the non-functioning cruise control in a 2015 Ram 2500?

Addressing the non-functioning cruise control in a 2015 Ram 2500 is more urgent than it may initially seem. While it might not present an immediate emergency, the implications of ignoring this issue can be significant. A malfunctioning cruise control system can indicate deeper problems within the vehicle's electrical system or sensors, which could compromise overall performance and safety. For drivers who frequently embark on long trips, the absence of cruise control can lead to increased fatigue and a higher likelihood of speed-related accidents. Moreover, delaying repairs can exacerbate the underlying issues, potentially resulting in more extensive damage and higher repair costs down the line. Therefore, it is advisable for DIY enthusiasts to prioritize diagnosing and addressing the cruise control malfunction promptly, ensuring both the safety and efficiency of their vehicle.

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2015 Ram 2500 Cruise Control Issues & Repair Costs