2019 Porsche 718 Boxster Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2019 Porsche 718 Boxster

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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 2019 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 2019 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 steps should I take to diagnose the non-functioning cruise control in my 2019 Porsche 718 Boxster?

When diagnosing the non-functioning cruise control in your 2019 Porsche 718 Boxster, it's essential to adopt a systematic diagnostic approach that begins with the simplest solutions before progressing to more complex issues. Start by checking the cruise control fuse, as a blown fuse is a common and easily fixable problem that can halt the system's operation. Next, inspect the cruise control buttons on the steering wheel to ensure they are responsive and not stuck, as malfunctioning buttons can prevent the system from engaging. If these initial checks do not reveal the issue, utilize a diagnostic scanner to identify any error codes stored in the vehicle's computer system, which can provide insights into underlying problems. Additionally, verify the functionality of the speed sensors, as faulty sensors can disrupt the cruise control's ability to maintain speed. Lastly, examine the wiring connections associated with the cruise control system for any signs of damage or loose connections, as these can impede communication between components. If these steps do not resolve the issue, seeking assistance from a professional mechanic or an authorized Porsche service center is advisable for a thorough diagnosis and repair. By following this structured approach, you can effectively troubleshoot and potentially resolve the cruise control malfunction in your vehicle.

What are the common problems that could cause the cruise control to malfunction in a 2019 Porsche 718 Boxster?

When troubleshooting cruise control malfunctions in a 2019 Porsche 718 Boxster, it's essential to consider 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, resulting in erratic behavior or complete failure to engage. Additionally, a malfunctioning brake light switch can prevent the cruise control from activating or cause it to disengage unexpectedly when the brakes are applied, posing a safety risk. Throttle control issues, such as a sticky throttle or problems with the throttle position sensor, can also hinder the cruise control's performance, making it difficult to regulate speed effectively. Electrical problems, including blown fuses or wiring issues, can further complicate matters, as they may affect the cruise control module's functionality. Lastly, software glitches within the vehicle's onboard computer system can lead to erratic cruise control behavior, making it crucial to keep the software updated. By being aware of these potential issues and addressing them promptly, DIY enthusiasts can ensure the reliable operation of the cruise control system in their Porsche 718 Boxster. Regular maintenance and timely repairs are key to preventing these common problems from impacting the vehicle's performance.

How urgent is it to address the malfunctioning cruise control in my 2019 Porsche 718 Boxster?

Addressing a malfunctioning cruise control in your 2019 Porsche 718 Boxster is not just a matter of convenience; it is a critical safety concern that requires immediate attention. A malfunction can lead to unexpected acceleration or deceleration, creating hazardous driving conditions that could endanger you and others on the road. Additionally, neglecting this issue may result in decreased fuel efficiency and overall vehicle performance, which can affect your driving experience and increase long-term costs. By prioritizing the repair of your cruise control system, you not only enhance your safety but also prevent further damage to the vehicle's components, ensuring that your Porsche remains in optimal condition. Therefore, it is essential to act promptly to resolve any cruise control malfunctions to maintain both safety and performance.

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2019 Porsche 718 Boxster Cruise Control Issues & Repairs