2019 Audi Q7 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Audi Q7 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 2019 Audi Q7 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 Q7 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 troubleshoot the non-functioning cruise control in a 2019 Audi Q7?

When troubleshooting the non-functioning cruise control in your 2019 Audi Q7, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse; a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control switch located on the steering wheel to ensure it is operational, as a faulty switch can prevent engagement. It's also essential to verify the vehicle speed sensor, which is critical for cruise control operation; if this sensor is malfunctioning, it may not relay the correct speed information. Additionally, keep an eye out for any dashboard warning lights or error codes that could indicate underlying issues with the cruise control system. Lastly, examine the brake light switch, as any problems here can inhibit the cruise control from activating. By following this systematic approach, you can effectively diagnose and potentially resolve the issue with your cruise control.

What are the common problems that could cause the cruise control to stop working in a 2019 Audi Q7?

When troubleshooting the cruise control system in a 2019 Audi Q7, it's essential to understand the common problems that may lead to its malfunction. One frequent issue is a faulty speed sensor, which can disrupt the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, problems with the brake light switch can interfere with the cruise control's operation, as this switch is designed to deactivate the system when the brake pedal is pressed. If the switch is malfunctioning, it may not allow the cruise control to activate or disengage correctly. Another potential culprit is a throttle control malfunction, which can stem from a faulty throttle position sensor or issues with the electronic throttle control unit, ultimately affecting the cruise control's performance. It's also wise to check for blown fuses related to the cruise control system, as a simple fuse replacement could restore functionality. Lastly, software glitches within the vehicle's onboard computer can disrupt the cruise control system, and updating or resetting the software may resolve these issues. By systematically addressing these common problems, you can effectively troubleshoot and potentially restore the cruise control functionality in your Audi Q7.

How urgent is it to address the malfunctioning cruise control in a 2019 Audi Q7?

Addressing a malfunctioning cruise control system in a 2019 Audi Q7 is of utmost importance due to the potential safety risks it poses. A faulty cruise control can lead to unexpected acceleration or deceleration, which can create hazardous driving conditions and increase the likelihood of accidents. Moreover, neglecting this issue can result in higher fuel consumption and may cause additional damage to other vehicle components, leading to more extensive and costly repairs down the line. By promptly seeking professional assistance to diagnose and repair the cruise control system, you not only enhance your driving comfort and convenience but also ensure the overall safety and performance of your vehicle. Therefore, it is crucial to take immediate action when faced with cruise control malfunctions to avoid serious consequences.

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