2012 Porsche Cayman Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2012 Porsche 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 2012 Porsche Cayman 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 2012 Porsche 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.

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 steps to diagnose the cruise control issue in a 2012 Porsche Cayman?

To effectively diagnose a cruise control issue in a 2012 Porsche Cayman, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the power supply and the main fuse for the command module, as these are fundamental components that can easily be overlooked. Next, assess whether the problem originates from the Control Module, Sensor, Throttle, or another related component. Pay attention to common culprits such as a malfunctioning control module, sensor issues, or throttle actuation problems. It's also crucial to verify that the cruise control light activates correctly when the system is engaged, as this can indicate whether the system is receiving power. Additionally, check the functionality of the brake pedal switch and the cruise control switch, as these can interrupt the system's operation if faulty. Finally, test the cruise control button on the dashboard to ensure it is working properly. If these steps do not resolve the issue, consider consulting a technical expert for further assistance. This methodical approach not only helps in identifying the problem but also saves time and resources in the troubleshooting process.

What causes cruise control failure in a 2012 Porsche Cayman?

When dealing with cruise control failure in a 2012 Porsche Cayman, it's crucial to identify the common problems that may be at play. One of the primary culprits is often the control module, which can malfunction and disrupt the system's functionality. Additionally, issues with the brake pedal switch or the cruise control switch itself can prevent the system from engaging properly. A faulty cable connection near the steering column has also been reported as a potential cause, leading to intermittent or complete failure of the cruise control system. Other factors to consider include a blown fuse, which can easily be checked and replaced, and problems with the throttle control system, which may require more in-depth diagnostics. In older models, broken vacuum lines can also contribute to cruise control issues. While some of these problems can be addressed through DIY repairs, it is advisable to consult a Porsche specialist for a thorough diagnosis to ensure that the underlying issue is accurately identified and resolved.

How urgent is it to address the malfunctioning cruise control in my 2012 Porsche Cayman?

Addressing the malfunctioning cruise control in your 2012 Porsche Cayman is of utmost urgency due to the potential safety risks and performance issues it can cause. A defective cruise control system not only compromises your ability to maintain a steady speed, which can lead to erratic acceleration, but it may also affect other critical components of your vehicle, such as the speedometer. Ignoring these symptoms can escalate into more significant problems, potentially resulting in costly repairs or even dangerous driving situations. Given that cruise control is designed to enhance your driving experience by allowing for relaxed long-distance travel, a malfunction can detract from this convenience and enjoyment. Therefore, it is essential to prioritize the repair of your cruise control system to ensure both your safety and the optimal performance of your Porsche Cayman.

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