2018 Alfa Romeo Giulia Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Alfa Romeo Giulia 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 2018 Alfa Romeo Giulia 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 Alfa Romeo Giulia 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 2018 Alfa Romeo Giulia?

When faced with a non-functional cruise control in a 2018 Alfa Romeo Giulia, it's crucial to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, ensure that the cruise control settings are correctly configured according to the owner's manual, as incorrect settings can prevent engagement. It's also important to inspect the cruise control buttons on the steering wheel for any signs of malfunction, as faulty buttons may hinder functionality. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific issues affecting the cruise control system. Additionally, verify the operation of the vehicle speed sensor, since a malfunctioning sensor can impede the cruise control's ability to maintain speed. Lastly, examine the brake and clutch switches to ensure they are functioning properly, as these switches are designed to disable the cruise control for safety reasons. By following these steps, you can effectively troubleshoot and potentially resolve the cruise control issues in your Alfa Romeo Giulia.

What are the common problems that could cause the cruise control to stop working in a 2018 Alfa Romeo Giulia?

When the cruise control in your 2018 Alfa Romeo Giulia ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One frequent culprit is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to disengage when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the cruise control's operation, as it relies on accurate speed readings to maintain the desired speed. A blown fuse in the cruise control circuit can also lead to a complete failure of the system, necessitating a simple fuse replacement. Furthermore, if the throttle actuator is malfunctioning, it may hinder the cruise control's ability to maintain speed, while problems with the Electronic Control Module (ECM) can affect various vehicle functions, including cruise control. By identifying these common issues, you can take the first steps toward troubleshooting and potentially fixing the cruise control system in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2018 Alfa Romeo Giulia?

Addressing a malfunctioning cruise control in a 2018 Alfa Romeo Giulia is of utmost importance due to the potential safety risks and performance issues it can cause. When cruise control fails, it may lead to unexpected acceleration or deceleration, which can create hazardous driving conditions. Additionally, such malfunctions often signal deeper electronic system or sensor problems that could compromise the vehicle's overall drivability. Ignoring these symptoms not only increases the likelihood of erratic vehicle behavior but can also result in higher fuel consumption and damage to other critical components. By promptly diagnosing and repairing the cruise control system, you can prevent more severe complications and costly repairs in the future, ensuring both your safety and the longevity of your vehicle. Therefore, it is crucial to take action as soon as you notice any issues with the cruise control system.

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