2017 Porsche 911 Cruise Control Isn't Working

Diagnosing Common Issues with Cruise Control in Your 2017 Porsche 911 and How to Fix Them

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Reviewed by
Aisha
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 2017 Porsche 911 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 2017 Porsche 911 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 2017 Porsche 911?

When diagnosing a cruise control issue in your 2017 Porsche 911, it's crucial to follow a methodical approach that prioritizes simpler solutions before delving into more complex diagnostics. Begin by checking the cruise control fuse, as a blown fuse is a common and straightforward problem that can disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel for any signs of sticking or malfunction, as these can prevent the system from engaging properly. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes that may indicate specific faults within the cruise control system. Following this, verify the operation of the speed sensors, as faulty sensors can significantly impact cruise control performance. Additionally, examine the wiring connections associated with the cruise control system for any loose or damaged wires that could be causing the malfunction. If all else fails, test the cruise control module itself, as a defective module may require replacement. Should you still be unable to diagnose the problem, seeking assistance from a professional mechanic or an authorized Porsche service center is advisable to ensure a thorough and accurate resolution. By following this structured diagnostic approach, you can effectively identify and address the cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2017 Porsche 911?

When troubleshooting the cruise control system in a 2017 Porsche 911, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can disrupt the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, the brake light switch plays a crucial role; if this switch is defective, it may inadvertently signal the cruise control to disengage, causing operational issues. Another potential culprit is the throttle actuator, which regulates the throttle opening; any malfunction here can hinder the system's performance. Electrical problems, such as blown fuses or wiring issues, can also impede the cruise control's functionality, as can vacuum leaks within the control system. By identifying and addressing these common issues, DIY enthusiasts can effectively restore the cruise control system's operation in their Porsche 911.

How urgent is it to address the malfunctioning cruise control in a 2017 Porsche 911?

Addressing a malfunctioning cruise control system in a 2017 Porsche 911 is of utmost urgency due to the significant safety risks it poses. A faulty cruise control can lead to unexpected acceleration or deceleration, which can result in dangerous driving situations. Promptly fixing this issue not only safeguards your safety but also helps prevent potential accidents that could arise from erratic vehicle behavior. Additionally, neglecting the repair can lead to further damage to the vehicle's components, resulting in more extensive and costly repairs down the line. Beyond safety and financial implications, a malfunctioning cruise control detracts from the overall driving experience, diminishing the convenience and enjoyment that this feature is designed to provide. Therefore, it is crucial to prioritize the repair of the cruise control system to ensure both your safety and the optimal performance of your Porsche 911.

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