2018 Fiat 500L Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Fiat 500L and How to Fix Them

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Reviewed by
Aisha
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 2018 Fiat 500L 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 2018 Fiat 500L 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.

What are the steps to diagnose the non-functioning cruise control in a 2018 Fiat 500L?

To effectively diagnose the non-functioning cruise control in your 2018 Fiat 500L, begin with the simplest checks to avoid unnecessary complications. Start by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, examine the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, as this can prevent activation. Following this, check the speed sensors, which are vital for the cruise control to operate correctly; any malfunction here could be the root of the issue. Utilizing a diagnostic scanner to scan for error codes can provide valuable insights into any underlying problems. Additionally, inspect the wiring and connections associated with the cruise control system for any signs of damage or loose connections that could hinder performance. If these preliminary checks do not resolve the issue, testing the cruise control module is essential to confirm it is functioning and communicating properly with the vehicle's computer. Should the problem persist after these steps, seeking assistance from a professional mechanic is advisable, as they possess the expertise to diagnose and repair more complex issues within the cruise control system. By following this structured approach, you can systematically identify and potentially resolve the cruise control malfunction in your Fiat 500L.

What are the common problems that could cause the cruise control to stop working in a 2018 Fiat 500L?

When troubleshooting the cruise control system in a 2018 Fiat 500L, it's essential to consider several common problems that could be affecting its functionality. One of the primary culprits is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if this switch malfunctions, it can prevent the system from engaging. Additionally, issues with the speed sensor can disrupt the cruise control's operation, as the system relies on accurate speed readings to maintain the desired speed. Another potential issue is a blown fuse within the cruise control circuit, which can halt the system entirely; checking and replacing any blown fuses is a straightforward fix. If these components are functioning correctly, the problem may lie within the cruise control module itself, which could require repair or replacement. Lastly, electrical problems, such as wiring issues or a weak battery, can also impact the cruise control's performance. By systematically addressing these common issues, you can effectively troubleshoot and restore the cruise control functionality in your Fiat 500L.

How urgent is it to address the malfunctioning cruise control in a 2018 Fiat 500L?

When it comes to a malfunctioning cruise control in a 2018 Fiat 500L, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can lead to unexpected acceleration or deceleration, creating a significant safety hazard for both the driver and other road users. Additionally, neglecting this problem may result in decreased fuel efficiency and overall vehicle performance, which can affect your driving experience and increase long-term costs. By addressing the malfunction early, you not only enhance your safety but also prevent the risk of more extensive and costly repairs down the line. Therefore, it is crucial to take immediate action to diagnose and fix any cruise control issues to ensure a safe and efficient driving experience.

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