2020 Porsche 718 Boxster Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2020 Porsche 718 Boxster

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Reviewed by
Andrew Hajjar
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 2020 Porsche 718 Boxster 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 2020 Porsche 718 Boxster 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 initial diagnostic steps to troubleshoot the non-functional cruise control in a 2020 Porsche 718 Boxster?

When faced with a non-functional cruise control in your 2020 Porsche 718 Boxster, it's crucial to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown or damaged fuse can often be the simplest explanation for the malfunction. Next, ensure that the cruise control settings are correctly configured according to your vehicle's manual, as incorrect settings can prevent the system from engaging. Utilizing a diagnostic tool to scan for error codes can provide valuable insights into any underlying issues that may not be immediately apparent. Additionally, inspect the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder functionality. Finally, while driving, attempt to engage the cruise control system to assess its responsiveness. By following these steps, you can effectively narrow down the potential causes of the issue and take the necessary actions to restore your cruise control functionality.

What are the common problems that could cause the cruise control to stop working in a 2020 Porsche 718 Boxster?

When the cruise control in your 2020 Porsche 718 Boxster ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is a faulty speed sensor, which is essential for the cruise control system to accurately gauge your vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain the desired speed. Another frequent issue arises from the brake light switch; if this switch is defective, it can disrupt the cruise control's operation, as the system is designed to disengage when the brakes are applied. Additionally, a malfunctioning throttle actuator can lead to erratic speed control, preventing the system from maintaining a constant speed. Electrical problems, such as blown fuses or wiring faults, can also hinder the cruise control's functionality, making it crucial to inspect these components. Lastly, software glitches within the vehicle's control module may cause the cruise control to misbehave, and updating or resetting the software could resolve these issues. By identifying and addressing these common problems, you can restore the cruise control system to its proper working condition.

How urgent is it to address the non-functioning cruise control in a 2020 Porsche 718 Boxster?

When it comes to the non-functioning cruise control in a 2020 Porsche 718 Boxster, understanding the urgency of the repair is essential for any DIY enthusiast. While this feature does not directly compromise the safety of the vehicle, neglecting it can lead to a less enjoyable driving experience, particularly on long trips where maintaining a steady speed is beneficial. The convenience of cruise control not only reduces driver fatigue but also enhances fuel efficiency, making it a valuable asset for highway driving. Therefore, while the issue may not require immediate attention from a safety standpoint, addressing it promptly can prevent future inconveniences and ensure that you can fully enjoy the performance and comfort of your Porsche. Taking the time to diagnose and repair the cruise control system will ultimately enhance your driving experience and maintain the vehicle's functionality.

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