2019 Alfa Romeo 4C Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Alfa Romeo 4C and How to Fix Them

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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 2019 Alfa Romeo 4C 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 2019 Alfa Romeo 4C 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 initial diagnostic steps to troubleshoot the non-functional cruise control in a 2019 Alfa Romeo 4C?

When faced with a non-functional cruise control in your 2019 Alfa Romeo 4C, it's essential to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown or damaged fuse can easily disrupt the system's operation. Next, inspect the cruise control switch to ensure it is functioning correctly; a faulty switch can prevent the system from engaging. It's also crucial to verify the brake pedal switch, as a stuck or malfunctioning switch can inadvertently signal that the brakes are engaged, disabling the cruise control. Additionally, examine the vehicle speed sensor, which plays a vital role in maintaining the desired speed; if it's not working properly, the cruise control may not activate. Finally, utilize the vehicle's onboard diagnostic system to check for any error codes that could provide insights into underlying issues with the cruise control system. By following these steps, you can effectively identify and address the root cause of the problem, restoring functionality to your cruise control.

What are the common problems that could cause the cruise control to stop working in a 2019 Alfa Romeo 4C?

When dealing with a malfunctioning cruise control system in a 2019 Alfa Romeo 4C, it's essential to understand the common problems that may be at play. One of the primary culprits could be a faulty speed sensor, which is crucial for the system to accurately gauge the vehicle's speed. If this sensor is malfunctioning, the cruise control may fail to engage or maintain the desired speed. Additionally, issues with the brake light switch can also disrupt the cruise control function, as the system is designed to disengage when the brake pedal is pressed. Another potential issue is a malfunctioning throttle actuator, which controls the engine's throttle opening and is vital for maintaining speed. Electrical problems, such as faulty wiring or blown fuses, can further complicate matters, as they may prevent the cruise control from functioning correctly. Lastly, vacuum leaks in the engine can disrupt the necessary vacuum pressure for the cruise control system to operate effectively. By understanding these common problems, DIY enthusiasts can better diagnose and address the issues affecting their vehicle's cruise control.

How urgent is it to address the non-functioning cruise control in a 2019 Alfa Romeo 4C?

Addressing the non-functioning cruise control in your 2019 Alfa Romeo 4C should be a priority, even if it may not seem like an immediate safety concern. This feature enhances your driving experience by allowing you to maintain a consistent speed, which is particularly beneficial during long trips or highway driving. While the absence of cruise control does not directly compromise the vehicle's safety, it can lead to frustration and discomfort during extended drives. Moreover, neglecting this issue could signal underlying problems that may escalate over time, potentially leading to more significant repairs and inconveniences. By addressing the cruise control malfunction promptly, you not only restore a valuable feature but also safeguard against future complications, ensuring a smoother and more enjoyable driving experience.

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2019 Alfa Romeo 4C Cruise Control Issues & Repair Costs