2015 Fiat 500L Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Fiat 500L 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 2015 Fiat 500L cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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 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 basic steps should I take to diagnose cruise control issues in a 2015 Fiat 500L?

To effectively diagnose cruise control issues in your 2015 Fiat 500L, begin by inspecting the control module, sensor, and switch, as these components are often the culprits behind malfunctioning cruise control systems. Next, assess the throttle actuation, since problems here can also disrupt cruise control functionality. If you experience intermittent issues, a simple yet effective step is to turn off the vehicle and restart it, as this has resolved similar problems for other Fiat 500L owners. Additionally, keep an eye on your dashboard warning lights; indicators such as coolant warnings or check engine lights may signal underlying issues affecting the cruise control system. It's also important to note that the cruise control indicator light may not change color to show its status, which can be different from other vehicles. Lastly, remember that engaging the brake or shifting gears will temporarily deactivate cruise control, but you can easily return to your preset speed by tapping the button on the stalk. By following these diagnostic steps, you can systematically identify and potentially resolve cruise control issues in your Fiat 500L.

What common issues cause cruise control failure in a 2015 Fiat 500L?

When troubleshooting cruise control failure in a 2015 Fiat 500L, it's essential to understand the common problems that may be at play. One frequent culprit is a failed control module, which can disrupt the entire cruise control system. Additionally, issues with sensors or switches, such as the brake pedal position sensor, can prevent the cruise control from engaging properly. Throttle actuation problems and throttle position sensor failures are also significant, as they can lead to incorrect fuel management by the engine's computer, resulting in symptoms like black exhaust. Other potential issues include blown fuses that cut power to the cruise control system and malfunctions in the throttle body or PRNDL/shifter position switch. Drivers have noted that intermittent cruise control problems may sometimes be temporarily resolved by simply restarting the vehicle, indicating that electronic glitches could also be a factor. By identifying these common issues, DIY enthusiasts can better diagnose and address cruise control failures in their Fiat 500L.

How urgent is it to address the malfunctioning cruise control in a 2015 Fiat 500L?

Addressing the malfunctioning cruise control in a 2015 Fiat 500L is crucial due to the immediate safety risks it poses. A faulty cruise control system can lead to erratic acceleration or inaccurate speed readings, which can compromise your control over the vehicle and increase the likelihood of accidents. Moreover, without the ability to maintain a steady speed, long drives can become physically taxing, leading to driver fatigue and discomfort. Ignoring these symptoms not only diminishes the driving experience but can also escalate into more severe mechanical issues, resulting in costly repairs down the line. Therefore, it is essential to prioritize the repair of your cruise control system to ensure both your safety and the longevity of your vehicle.

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