2020 Ram ProMaster City Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2020 Ram ProMaster City

Find Repair Location
Reviewed by
Devin Cabugcal
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 2020 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 2020 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 2020 Ram ProMaster City?

To effectively diagnose a cruise control issue in your 2020 Ram ProMaster City, begin with the simplest solutions before moving on to more intricate assessments. Start by checking the cruise control fuse, as a blown fuse can often be the root of the problem. Next, inspect the cruise control buttons on the 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, test the cruise control module to confirm it is functioning correctly and sending the appropriate signals. Additionally, examine the speed sensors to ensure they are providing accurate data, as incorrect readings can disrupt the cruise control operation. Finally, inspect the wiring and connections for any signs of damage or corrosion that could affect the system's performance. If you still encounter issues after these steps, it may be time to consult a professional mechanic for further assistance. This methodical approach not only saves time but also enhances your understanding of the vehicle's systems, making it easier to identify and resolve issues effectively.

What are the common problems that could cause the cruise control to stop working in a 2020 Ram ProMaster City?

When the cruise control in your 2020 Ram ProMaster City ceases to function, it can be frustrating, but understanding the common problems can help you diagnose and potentially fix the issue yourself. One of the first things to check is the cruise control switch; if it’s faulty, it may not engage the system properly. Additionally, inspect the vehicle's fuse box for any blown fuses, as this can disrupt the cruise control's operation. Another critical component to consider is the speed sensor, which plays a vital role in regulating your vehicle's speed; if it’s malfunctioning, the cruise control may fail to maintain speed. Furthermore, a malfunctioning brake light switch can cause the cruise control to disengage unexpectedly when you apply the brakes, so ensure that this switch is working correctly. Lastly, issues with the throttle control system can also interfere with the cruise control's ability to maintain a steady speed. By systematically checking these components, you can identify and resolve the issue, restoring your cruise control functionality.

How urgent is it to address the non-functioning cruise control in a 2020 Ram ProMaster City?

Addressing a non-functioning cruise control in your 2020 Ram ProMaster City should not be overlooked, as it can significantly impact your driving experience and safety. While it may seem like a minor inconvenience, a malfunctioning cruise control system can indicate deeper issues within your vehicle's electronics or mechanical components. Ignoring this problem could lead to increased driver fatigue during long trips, as you may find yourself constantly adjusting your speed, which can be particularly taxing on highways. Moreover, the absence of cruise control can compromise your fuel efficiency, leading to higher fuel costs over time. It’s essential to recognize that timely intervention can prevent further damage to your vehicle, potentially saving you from more extensive repairs and costs down the line. Therefore, if you notice your cruise control is not functioning, it’s advisable to investigate the issue promptly to ensure your vehicle remains safe and efficient on the road.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.