2021 Porsche 718 Spyder Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2021 Porsche 718 Spyder

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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 2021 Porsche 718 Spyder 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 2021 Porsche 718 Spyder 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 2021 Porsche 718 Spyder?

When diagnosing the cruise control issue in your 2021 Porsche 718 Spyder, 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 can often be the root cause of the malfunction. Next, inspect the cruise control buttons on the steering wheel to ensure they are functioning correctly, as faulty buttons can disrupt the system's operation. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes that may indicate specific problems within the vehicle's computer system. Additionally, verify that the speed sensors are operational, as they are critical for the cruise control's functionality. It's also important to examine the wiring connections associated with the cruise control system for any signs of damage or loose connections. Finally, if all else fails, test the cruise control module to confirm it is sending the correct signals. By following this structured diagnostic approach, you can effectively identify and address the cruise control issue in your Porsche, ensuring a smoother driving experience.

What are the common problems that could cause the cruise control to stop working in a 2021 Porsche 718 Spyder?

When the cruise control in your 2021 Porsche 718 Spyder ceases to function, there are several common issues you can troubleshoot on your own. Start by checking the cruise control switch, as a faulty switch can prevent the system from engaging. Next, inspect the speed sensor; if it’s malfunctioning, it may provide inaccurate speed readings, which can disrupt the cruise control operation. Additionally, examine the brake light switch, since a failure here can cause the cruise control to disengage unexpectedly when the brakes are applied. Another critical component to consider is the throttle actuator; if it’s not working correctly, the system may struggle to maintain your desired speed. Lastly, look for any electrical problems, such as wiring issues, that could interfere with the cruise control's functionality. By systematically checking these components, you can identify the root cause of the problem and determine whether a simple fix is possible or if professional assistance is needed.

How urgent is it to address the malfunctioning cruise control in a 2021 Porsche 718 Spyder?

When it comes to a malfunctioning cruise control in your 2021 Porsche 718 Spyder, the urgency to address the issue cannot be overstated. Ignoring symptoms such as erratic speed control or failure to engage can lead to serious safety risks, including the potential for accidents due to loss of speed regulation. Additionally, a malfunctioning cruise control system can detract from your driving comfort, especially during long trips where consistent speed is essential for a pleasant experience. Beyond immediate safety and comfort concerns, neglecting this issue may also result in further damage to your vehicle's systems, ultimately leading to more costly repairs. Furthermore, if your vehicle is still under warranty, timely action could save you from out-of-pocket expenses for repairs. Therefore, it is crucial to prioritize the diagnosis and repair of your cruise control system to ensure both your safety and the optimal performance of your Porsche.

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2021 Porsche 718 Spyder Cruise Control Issues & Repair Costs