2020 Porsche 718 Cayman Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2020 Porsche 718 Cayman 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 2020 Porsche 718 Cayman 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 Cayman 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 steps should I take to diagnose the cruise control issue in my 2020 Porsche 718 Cayman?

When diagnosing the cruise control issue in your 2020 Porsche 718 Cayman, it's essential to adopt a systematic approach that begins with the simplest solutions before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse is a common and easily fixable problem that can disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as faulty buttons can prevent the system from engaging. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes stored in the vehicle's computer system, which can provide insights into the underlying problem. Additionally, verify that the speed sensors are functioning correctly, as they are critical for the cruise control system to operate effectively. Finally, examine the wiring and connections associated with the cruise control system for any signs of damage or corrosion. If these steps do not lead to a solution, it may be time to consult a professional mechanic or an authorized Porsche service center, as they possess the specialized knowledge and tools necessary for a thorough diagnosis and repair. By following this structured diagnostic approach, you can efficiently identify and address the cruise control issue in your Porsche 718 Cayman.

What are the common problems that could cause the cruise control to malfunction in a 2020 Porsche 718 Cayman?

When troubleshooting cruise control malfunctions in a 2020 Porsche 718 Cayman, it's important to be aware of several common problems that may arise. One of the primary culprits is faulty speed sensors, which can disrupt the system's ability to maintain a steady speed. Additionally, a malfunctioning brake light switch can prevent the cruise control from engaging or disengaging correctly, leading to frustrating driving experiences. Throttle control issues may also arise, affecting the system's capacity to adjust speed accurately. Electrical problems, such as blown fuses or wiring issues, can further complicate matters, as they may interfere with the cruise control's operation. Lastly, software glitches within the vehicle's control module can result in erratic behavior of the cruise control system. By understanding these potential issues, DIY enthusiasts can take proactive steps to diagnose and address problems, ensuring the cruise control system operates smoothly and reliably. Regular maintenance and timely repairs are key to preventing these common problems from impacting performance.

How urgent is it to address the malfunctioning cruise control in my 2020 Porsche 718 Cayman?

Addressing the malfunctioning cruise control in your 2020 Porsche 718 Cayman is of utmost urgency due to the significant safety risks it poses. A malfunctioning system can hinder your ability to maintain a consistent speed, increasing the likelihood of accidents on the road. Moreover, neglecting this issue can lead to further complications within your vehicle's systems, resulting in more extensive and costly repairs down the line. By prioritizing the repair of your cruise control, you not only enhance your safety but also ensure that your driving experience remains smooth and enjoyable. Timely intervention can prevent inconveniences and disruptions, allowing you to enjoy the full performance of your Porsche without the worry of unexpected malfunctions.

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2020 Porsche 718 Cayman Cruise Control Issues & Repairs