2012 Ram 1500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2012 Ram 1500 and How to Fix Them

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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 2012 Ram 1500 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 2012 Ram 1500 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.

What are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2012 Ram 1500?

When troubleshooting the non-functioning cruise control in a 2012 Ram 1500, it's important to follow a structured diagnostic approach that prioritizes simpler checks before moving on to more complex issues. Begin by inspecting the fuse related to the cruise control system, as a blown fuse can easily disrupt its functionality. Next, ensure that the cruise control settings are correctly configured on the control stalk or steering wheel buttons, since incorrect settings can prevent the system from engaging. It's also vital to check the brake lights; if they are malfunctioning, a faulty brake light switch could be disabling the cruise control, as the system is designed to disengage when the brakes are applied. Additionally, examine the vehicle's speed sensors to confirm they are operating correctly, as any issues here can impede the cruise control's ability to maintain speed. Utilizing a diagnostic scanner to check for error codes can provide further insights into specific problems affecting the cruise control system. Lastly, test the cruise control module to ensure it is sending signals properly, as a malfunctioning module may need to be replaced. By systematically following these steps, you can effectively diagnose and resolve the issues with the cruise control in your Ram 1500.

What are the common problems that could cause the cruise control to stop working in a 2012 Ram 1500?

When troubleshooting the cruise control system in a 2012 Ram 1500, it's essential to consider several common issues that may be at play. One of the first components to check is the brake light switch, as a faulty switch can prevent the cruise control from engaging; this switch is designed to deactivate the system when the brake pedal is pressed. Additionally, the speed sensor plays a crucial role in maintaining a constant speed, and any defects here can lead to cruise control failure. It's also wise to inspect the vehicle's fuses, as a blown fuse can disrupt the electrical flow necessary for the cruise control to function. Furthermore, vacuum leaks in the engine can affect the operation of the cruise control system, leading to erratic behavior or complete failure. Lastly, the cruise control module itself may be defective, which can prevent the system from engaging or maintaining speed. By systematically checking these components, DIYers can identify and potentially resolve the issues affecting their cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2012 Ram 1500?

When it comes to a malfunctioning cruise control system in your 2012 Ram 1500, the urgency to address the issue cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. Ignoring these symptoms not only jeopardizes your safety but also that of other drivers and pedestrians. Moreover, delaying repairs can exacerbate the problem, potentially leading to more extensive and costly damage to your vehicle's systems. Therefore, it is crucial to have the cruise control inspected and repaired by a qualified mechanic as soon as possible. Taking prompt action ensures that your vehicle remains safe to drive and helps you avoid the financial burden of more serious repairs down the line.

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