2017 Audi A4 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2017 Audi A4

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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 2017 Audi A4 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 2017 Audi A4 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 are the initial diagnostic steps to take when the cruise control isn't working on a 2017 Audi A4?

When your cruise control isn't functioning on a 2017 Audi A4, it's essential to approach the problem methodically to identify the root cause. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational; sometimes, these buttons can become faulty and prevent the system from engaging. It's also crucial to verify the speed sensors, as any malfunction here can disrupt the cruise control functionality. Additionally, examine the brake lights; a malfunctioning brake light switch can inadvertently disengage the cruise control. Finally, consider using a diagnostic scanner to check for any error codes that may provide insight into specific issues affecting the cruise control system. By following these steps, you can effectively troubleshoot and potentially resolve the cruise control malfunction on your Audi A4 without needing professional help.

What are the common problems that could cause the cruise control to stop working in a 2017 Audi A4?

When dealing with cruise control issues in a 2017 Audi A4, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which can disrupt the system's ability to engage or disengage as intended. Additionally, speed sensor issues can lead to incorrect speed readings, causing the cruise control to malfunction. Another potential problem is a malfunctioning throttle actuator, which may prevent the system from maintaining the desired speed. Electrical problems, such as faulty wiring or blown fuses, can also interfere with the cruise control's functionality. Lastly, vacuum leaks within the system can hinder its ability to maintain speed consistently. By identifying and addressing these issues, you can effectively troubleshoot and potentially resolve the cruise control problems in your Audi A4, making it a manageable DIY project.

How urgent is it to address the malfunctioning cruise control in my 2017 Audi A4?

Addressing a malfunctioning cruise control system in your 2017 Audi A4 is of utmost urgency due to the significant safety risks it poses. A faulty cruise control can lead to unexpected acceleration or deceleration, which can result in dangerous driving situations and increase the likelihood of accidents. Moreover, neglecting this issue can adversely affect your vehicle's overall performance and fuel efficiency, leading to a less enjoyable driving experience. Additionally, ignoring the symptoms of a malfunctioning system may result in further damage to other critical components of your vehicle, potentially leading to costly repairs down the line. Lastly, maintaining your Audi A4 in optimal condition, including its cruise control system, is essential for preserving its resale value. Therefore, it is crucial to address any cruise control malfunctions promptly to ensure your safety, enhance vehicle performance, and protect your investment.

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2017 Audi A4 Cruise Control Not Working | RepairPal