2023 Audi S4 Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2023 Audi S4 and How to Fix Them

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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 2023 Audi S4 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 2023 Audi S4 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 2023 Audi S4?

To effectively diagnose the non-functioning cruise control in your 2023 Audi S4, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue. Next, examine the cruise control buttons on your steering wheel to ensure they are operational, as malfunctioning buttons can disrupt the system. Following this, verify the speed sensor's functionality, since it is essential for maintaining a consistent speed. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, assess the brake and clutch switches, as faulty switches can prevent cruise control from engaging. Inspecting the wiring and connections for any damage or looseness is crucial, as these can interfere with signal transmission. Finally, if all previous checks do not resolve the issue, consider testing the cruise control module itself, as it may require repair or replacement. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control problems.

What are the common problems that could cause the cruise control to stop working in a 2023 Audi S4?

When troubleshooting the cruise control system in a 2023 Audi S4, it's essential to be aware of several common problems that could lead to its malfunction. One frequent issue is a faulty cruise control switch, which may prevent the system from engaging or disengaging as intended. Additionally, problems with the speed sensor can disrupt the system's ability to maintain a consistent speed, making it crucial to check this component. Another common culprit is a malfunctioning brake light switch; if this switch fails, it can cause the cruise control to disengage unexpectedly whenever the brakes are applied. Furthermore, issues with the throttle actuator can hinder the system's ability to adjust the throttle position correctly, impacting overall performance. Lastly, electrical problems such as wiring issues or blown fuses can also interfere with the cruise control's operation. By understanding these potential issues, DIY enthusiasts can better diagnose and address the problems affecting their vehicle's cruise control system.

How urgent is it to address the malfunctioning cruise control in my 2023 Audi S4?

When it comes to your 2023 Audi S4, addressing a malfunctioning cruise control system is not just a matter of convenience; it is a critical safety concern that requires immediate attention. A malfunctioning cruise control can lead to erratic vehicle behavior, such as unexpected acceleration or deceleration, which significantly increases the risk of accidents. Moreover, these issues may be symptomatic of deeper electronic or sensor problems that could compromise other essential functions of your vehicle, making it imperative to diagnose and resolve the issue quickly. Neglecting these symptoms can also result in decreased fuel efficiency and accelerated wear on your car's components, leading to more costly repairs down the line. By prioritizing the repair of your cruise control system, you not only enhance your safety on the road but also protect the overall health of your vehicle, ultimately saving you time and money in the long run.

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