2019 Audi RS5 Cruise Control Isn't Working

Fixing cruise control issues in your 2019 Audi RS5 for restored functionality

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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 2019 Audi RS5 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 Audi RS5 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 2019 Audi RS5?

To effectively diagnose the cruise control issue in your 2019 Audi RS5, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by examining the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or wear that could hinder their operation. Utilizing an OBD-II scanner is crucial at this stage; it allows you to identify any error codes that may point to specific problems within the cruise control system. Following this, check the speed sensors, which are vital for the system's performance, ensuring they are intact and functioning properly. If these initial checks do not reveal the issue, proceed to test the cruise control module itself, as a malfunctioning module can lead to significant problems. Additionally, inspect all wiring connections related to the cruise control system for any loose or damaged wires that could be causing the malfunction. If, after these steps, the problem persists, it may be time to consult a professional mechanic or an authorized Audi service center for a comprehensive diagnosis and repair. This methodical approach not only helps in identifying the issue but also saves time and resources by addressing simpler problems first.

What are the common problems that could cause the cruise control to stop working in a 2019 Audi RS5?

When the cruise control in a 2019 Audi RS5 ceases to function, it can be attributed to several common problems that are crucial for DIY enthusiasts to understand. One of the primary culprits is a faulty cruise control switch, which can hinder the system's ability to engage or disengage as intended. Additionally, issues with the speed sensor can disrupt the system's capability to maintain a consistent speed, leading to erratic performance. Another frequent issue is a malfunctioning brake light switch; if this component fails, it may cause the cruise control to disengage unexpectedly whenever the brakes are applied. Furthermore, the throttle actuator plays a vital role in the cruise control system, and any failure here can result in erratic behavior or complete system failure. Lastly, electrical problems such as wiring issues or blown fuses can significantly interfere with the cruise control's operation. Understanding these potential issues is essential for anyone looking to troubleshoot or repair their vehicle's cruise control system effectively.

How urgent is it to address the malfunctioning cruise control in my 2019 Audi RS5?

When it comes to your 2019 Audi RS5, the urgency of addressing a malfunctioning cruise control system cannot be overstated. A malfunction in this system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses significant safety risks not only to you but also to other road users. Moreover, cruise control issues may be symptomatic of deeper electronic or sensor-related problems that could compromise the overall drivability of your vehicle. Ignoring these symptoms can lead to increased fuel consumption and may even cause damage to other critical components, resulting in more extensive and costly repairs down the line. Therefore, it is crucial to prioritize the diagnosis and repair of your cruise control system to maintain the safety, performance, and reliability of your Audi RS5. Taking prompt action can help you avoid further complications and ensure a smoother driving experience.

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