2019 Ram 2500 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2019 Ram 2500

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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 2019 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 2019 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 steps to diagnose the cruise control issue in a 2019 Ram 2500?

To effectively diagnose a cruise control issue in your 2019 Ram 2500, begin with the simplest solutions before progressing to more intricate checks. Start by inspecting the cruise control fuse; a blown fuse can often be the root of the problem and is an easy fix. Next, examine the cruise control buttons on your steering wheel to ensure they are not stuck or damaged, as this can prevent the system from engaging. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes that may indicate specific malfunctions within the cruise control system. Following this, inspect the speed sensors, as they are vital for the cruise control's operation. Additionally, test the brake pedal switch, since the system is designed to disengage when the brake is applied. Lastly, take a close look at the wiring connections associated with the cruise control system for any signs of wear or damage. If these steps do not yield results, it may be time to consult a professional mechanic who specializes in Ram vehicles for further assistance. By following this structured approach, you can efficiently diagnose and potentially resolve cruise control issues in your truck.

What are the common problems that could cause the cruise control to stop working in a 2019 Ram 2500?

When troubleshooting the cruise control system in a 2019 Ram 2500, it's essential to consider several common issues that may be at play. One of the primary culprits is a faulty brake pedal switch, which can prevent the cruise control from engaging since it is designed to deactivate when the brake is pressed. Additionally, problems with the speed sensor can disrupt the system's ability to maintain speed, as accurate readings are crucial for its operation. A blown fuse in the vehicle's electrical system can also lead to cruise control failure, cutting off power to the system. Furthermore, a malfunction in the throttle control system, such as a defective throttle position sensor, can hinder the cruise control's performance. Lastly, a faulty cruise control module may be responsible for the system's inability to engage or maintain speed effectively. For DIY enthusiasts, diagnosing these issues can often be done with basic tools and a multimeter, but if the problem persists, consulting a qualified mechanic is advisable to ensure proper repairs and functionality.

How urgent is it to address the malfunctioning cruise control in my 2019 Ram 2500?

When it comes to the malfunctioning cruise control in your 2019 Ram 2500, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses a significant safety risk not only to you but also to other road users. Ignoring these symptoms can result in dangerous driving situations, potentially leading to accidents that could have been avoided with timely intervention. Moreover, a malfunctioning system may indicate underlying issues that could escalate into more severe mechanical problems if left unchecked, resulting in costly repairs down the line. For those considering a DIY approach, it is crucial to recognize that while some troubleshooting may be feasible, the complexity of modern vehicle systems often necessitates professional expertise to ensure safe and effective repairs. Therefore, prioritizing the inspection and repair of your cruise control system is essential for maintaining the overall safety and functionality of your vehicle, allowing you to drive with confidence and peace of mind.

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2019 Ram 2500 Cruise Control Issues & Repair Costs