2020 Audi S6 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2020 Audi S6 and How to Fix Them

Find Repair Location
Reviewed by
Devin Cabugcal
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 2020 Audi S6 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 2020 Audi S6 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 2020 Audi S6?

When diagnosing a cruise control issue in your 2020 Audi S6, it's essential to adopt a systematic approach that begins with the simplest checks before progressing to 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 to check for error codes is a crucial step, as these codes can reveal underlying problems within the system. Following this, verify the speed sensors, which are vital for the cruise control's performance; faulty sensors can lead to significant issues. Additionally, inspect the wiring connections associated with the cruise control system for any loose or damaged wires that may be causing the malfunction. Finally, test the cruise control module itself to ensure it is functioning correctly, as a defective module can prevent the system from operating as intended. By following this structured diagnostic approach, you can effectively identify and address the root cause of the cruise control issue in your Audi S6.

What are the common problems that could cause the cruise control to stop working in a 2020 Audi S6?

When troubleshooting the cruise control system in a 2020 Audi S6, it's essential to consider several common problems that could be at play. A faulty speed sensor is often a primary culprit, as it can hinder the system's ability to accurately gauge the vehicle's speed, preventing proper engagement or maintenance of speed. Additionally, issues with the brake light switch can disrupt the cruise control's functionality; since the system is designed to disengage when the brakes are applied, a malfunctioning switch may lead to persistent disengagement. Another potential issue lies within the throttle control system, where a faulty throttle position sensor or actuator can impede the cruise control's ability to maintain speed. Electrical problems, such as blown fuses or wiring issues, can also affect the cruise control module, leading to operational failures. Lastly, software glitches within the vehicle's onboard computer may require a reset or update to restore functionality. By systematically addressing these areas, you can effectively diagnose and resolve cruise control issues in your Audi S6.

How urgent is it to address the non-functioning cruise control in a 2020 Audi S6?

When faced with a non-functioning cruise control in a 2020 Audi S6, it is crucial to recognize the urgency of the situation. While it may not seem like an immediate emergency, neglecting this issue can lead to significant safety risks and potential damage to the vehicle's electronic systems. Cruise control is designed to enhance driving comfort and efficiency, particularly on long journeys, and its failure could indicate deeper problems within the car's sensors or electronic components. For DIY enthusiasts, it is advisable to conduct a preliminary inspection of the cruise control system, checking for any obvious signs of malfunction such as blown fuses or disconnected wiring. However, given the complexity of modern vehicles, if basic troubleshooting does not resolve the issue, seeking assistance from a qualified mechanic or dealership is essential. This ensures that not only the cruise control is restored to functionality but also that any underlying issues are addressed, ultimately safeguarding the vehicle's overall performance and your safety on the road.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.