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Why is my cruise control not working on my Dodge Ram 1500?


Having cruise control fail on your Dodge Ram 1500 can be frustrating, especially during long drives where it provides convenience and comfort. Cruise control issues can stem from a variety of causes, ranging from simple fixes to more complex mechanical or electrical problems. In this article, we’ll explore the most common reasons why your cruise control might not be working and what you can do about it.


1. Faulty Brake Pedal Switch


The brake pedal switch is a critical component of your cruise control system. It signals the cruise control to disengage when you press the brake pedal. If this switch is faulty or misaligned, it may prevent the cruise control from activating or cause it to disengage unexpectedly.



  • Check if your brake lights are functioning properly. A malfunctioning brake light can indicate an issue with the brake pedal switch.

  • Inspect the switch for physical damage or misalignment.

  • Replace the brake pedal switch if necessary, as it is a relatively inexpensive and straightforward repair.


Addressing a faulty brake pedal switch can often resolve cruise control issues quickly and effectively.


2. Blown Fuse


Your Dodge Ram 1500’s cruise control system relies on electrical power, and a blown fuse can interrupt this power supply. Fuses are designed to protect the system from electrical surges, but they can fail over time.



  • Locate the fuse box in your vehicle (refer to your owner’s manual for the exact location).

  • Identify the fuse associated with the cruise control system.

  • Inspect the fuse for signs of damage, such as a broken filament or discoloration.

  • Replace the fuse with one of the same amperage if it is blown.


Replacing a blown fuse is a simple fix that can restore functionality to your cruise control system.


3. Speed Sensor Issues


The speed sensor plays a vital role in the cruise control system by providing information about the vehicle’s speed. If the speed sensor is malfunctioning, the cruise control may not work properly.



  • Check for warning lights on your dashboard, such as the ABS or check engine light, which may indicate a speed sensor problem.

  • Have the speed sensor tested using diagnostic equipment at a trusted auto repair shop.

  • Replace the speed sensor if it is found to be faulty.


Speed sensor issues can also affect other systems in your vehicle, so addressing them promptly is important.


4. Damaged Cruise Control Module


The cruise control module is the brain of the system, responsible for processing inputs and maintaining the set speed. If the module is damaged or malfunctioning, the cruise control may fail to operate.



  • Inspect the module for visible signs of damage, such as corrosion or loose connections.

  • Use diagnostic tools to check for error codes related to the cruise control system.

  • Replace the module if necessary, but note that this can be a more expensive repair.


A damaged cruise control module may require professional diagnosis and repair to ensure proper functionality.


5. Throttle Body or Cable Problems


In older Dodge Ram 1500 models with mechanical cruise control, the throttle cable may be worn or disconnected. In newer models with electronic throttle control, issues with the throttle body can prevent the cruise control from working.



  • Inspect the throttle cable for wear, fraying, or disconnection.

  • Clean the throttle body to remove carbon buildup that may interfere with its operation.

  • Replace damaged components as needed.


Ensuring the throttle system is in good condition can help restore cruise control functionality.


Conclusion


When your cruise control stops working on your Dodge Ram 1500, it’s essential to diagnose the issue accurately to avoid unnecessary repairs. Start with simple checks like inspecting the brake pedal switch and fuses, and then move on to more complex components like the speed sensor, cruise control module, or throttle system. If you’re unsure about diagnosing or repairing the issue yourself, don’t hesitate to bring your vehicle to a trusted auto repair shop like Kevin’s Autos, where experienced technicians can help get your cruise control back in working order.


Frequently Asked Questions

How do I activate cruise mode?


Cruise control if I press this button here. And then press set by pushing that button up now my car is doing 36 miles an hour. And it's not me pressing you can see I'm not pressing the accelerator.



How to turn on cruise control on a Dodge Ram?


The button to turn the cruise on/off is on the steering wheel right next to the accel, set/decel buttons. That is the only button to turn on/off the cruise.



Why is my cruise control suddenly not working?


Any issues with your car's electrical components can cause the cruise control to stop working. These issues could be something as simple as a loose wire or connector, or something more complicated like a damaged alternator, starter, or electrical short circuit.



How do I know if my cruise control module is bad?


Symptoms of a Failing Cruise Control System

  1. Not Maintaining Consistent Speed. When you've set the cruise control, it should always maintain the speed you've set.
  2. The System Does Not Engage.
  3. Dashboard Cruise Control Light Issues.
  4. Cruise Control Installation in Brooklyn Park.



What does it cost to fix cruise control?


The average cost for a Cruise Control Module Replacement is between $630 and $643. Labor costs are estimated between $50 and $63 while parts are typically priced around $581. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.



What is the most common failure of a cruise control system?


Blown Fuse
One of the most common reasons for a malfunctioning cruise control system is a blown fuse. Fuses are designed to protect electrical components from power surges and prevent damage. If the fuse for the cruise control system has blown, it will prevent the system from functioning.



Can I fix cruise control to my car?


It can be installed by anyone who knows what is accelerator pedal, and the process is simple and straightforward. The best part? If you decide to sell your car or upgrade to a new one, you can easily remove the cruise control system and transfer it to your new vehicle.



Why is my cruise control not working on my Dodge Ram?


The most common reasons a Dodge Ram 1500 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.



How to get cruise control to work?


To use cruise control, you can typically press buttons on your steering wheel to activate the system, set your speed, adjust your speed up or down within the system, and deactivate the system. Using cruise control lets you set a speed for your car to maintain even if you take your foot off the gas.



How do I know if my cruise control fuse is blown?


You can check to see if a fuse is blown by checking the fuse box and locate the fuse that corresponds to your cruise control. You'll need to remove the fuse and perform a visual inspection to see if a filament on the inside is broken, indicating that the fuse is bad. If the filament is intact it's most likely fine.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.