2019 Audi S5 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Audi S5 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 2019 Audi S5 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 S5 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 Audi S5?

To effectively diagnose the non-functioning cruise control in your 2019 Audi S5, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located in the fuse box; a blown fuse is a straightforward fix that can often resolve the issue. Next, examine the cruise control buttons on your steering wheel for any signs of damage or sticking, as these can hinder functionality. Following this, verify the speed sensor's operation, since a malfunctioning sensor can disrupt the cruise control system. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are functioning correctly, as faulty switches can prevent the cruise control from engaging. Finally, inspect the wiring and connections associated with the cruise control system for any damage or looseness. If these steps do not resolve the problem, it may be time to consult a professional mechanic for further assistance. By following this diagnostic approach, you can efficiently identify and address the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2019 Audi S5?

When troubleshooting cruise control issues in a 2019 Audi S5, it's important to consider several common problems that could be at play. A faulty cruise control switch is often the first suspect, as it can prevent the system from engaging or disengaging properly. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a set speed, leading to erratic performance. Another critical component is the brake light switch; if this switch malfunctions, it may cause the cruise control to disengage unexpectedly when the brakes are applied, which can be both frustrating and dangerous. Furthermore, a failing throttle actuator can hinder the cruise control's ability to maintain speed, while electrical problems, such as wiring issues or faults, can interfere with the entire system's operation. Understanding these potential issues can empower DIY enthusiasts to diagnose and address cruise control problems effectively, although it is advisable to consult a qualified mechanic for complex repairs.

How urgent is it to address the non-functioning cruise control in my 2019 Audi S5?

When it comes to your 2019 Audi S5, the urgency of fixing a non-functioning cruise control system should not be underestimated. While it may not seem like an immediate emergency, neglecting this issue can lead to more significant problems down the line. A malfunctioning cruise control can indicate underlying electronic system failures or sensor issues that could compromise your vehicle's overall performance and safety. Moreover, without the convenience of cruise control, long drives can become more tiring, increasing the risk of driver fatigue. Therefore, it is advisable to diagnose and address the problem as soon as possible. For those inclined to take a DIY approach, start by checking the fuses and connections related to the cruise control system, as these are often the culprits behind such malfunctions. However, if the issue persists, consulting a qualified mechanic or dealership is essential to ensure that the repair is handled correctly, preventing further complications and ensuring a safe driving experience.

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