2015 Ram ProMaster City Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Ram ProMaster City 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 ProMaster City 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 ProMaster City 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.

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 2015 Ram ProMaster City?

When diagnosing a cruise control issue in a 2015 Ram ProMaster City, it's crucial to follow a methodical approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are functioning correctly and are not stuck or damaged, which could hinder their performance. Utilizing a diagnostic scanner to check for error codes can reveal any underlying issues within the vehicle's onboard computer that may affect the cruise control system. Additionally, it's important to assess the speed sensors, as any malfunction here can directly impact cruise control functionality. Pay close attention to the wiring connections associated with the cruise control system, looking for any loose or damaged wires that may require repair. Finally, test the cruise control module to ensure it is sending the correct signals; if it is not functioning properly, replacement may be necessary. If these steps do not resolve the issue, seeking assistance from a professional mechanic with experience in cruise control systems is recommended for further diagnosis and repair. By adhering to this structured diagnostic approach, you can effectively identify and resolve cruise control problems in your vehicle.

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

When the cruise control in your 2015 Ram ProMaster City ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One frequent culprit is a faulty brake pedal switch, which may fail to signal the system when the brake is engaged, thus preventing cruise control from activating. Another issue could stem from a malfunctioning speed sensor; if this component is not providing accurate speed readings, the cruise control may disengage unexpectedly. Additionally, a blown fuse can disrupt the entire cruise control system, rendering it inoperative. Throttle control problems, particularly with the throttle position sensor, can also hinder the system's ability to maintain a consistent speed. Lastly, issues with the Electronic Control Module (ECM) can affect various vehicle functions, including cruise control. By identifying these potential problems, you can take the necessary steps to diagnose and resolve the issues, restoring your vehicle's cruise control functionality.

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

When it comes to a non-functioning cruise control in a 2015 Ram ProMaster City, the urgency of addressing the issue cannot be overstated. While it may not seem like an immediate emergency, neglecting this problem can lead to significant safety risks and further complications. Cruise control is designed to enhance driving comfort and fuel efficiency, particularly on long trips, and its malfunction could indicate deeper issues within the vehicle's electronic or engine control systems. Ignoring these symptoms may not only compromise your driving experience but could also result in more severe damage over time, potentially leading to costly repairs. Therefore, it is crucial to have the cruise control system inspected by a qualified mechanic as soon as possible. This proactive approach ensures the safe operation of your vehicle and helps prevent any unforeseen hazards on the road.

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2015 Ram ProMaster City Cruise Control Issues & Repair Costs