2021 BMW M550i XDrive Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2021 BMW M550i xDrive

Find Repair Location
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 2021 BMW M550i xDrive 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.

What steps should I take to diagnose the non-functioning cruise control in my 2021 BMW M550i xDrive?

To effectively diagnose the non-functioning cruise control in your 2021 BMW M550i xDrive, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start 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 functionality of the speed sensor, which is essential for the cruise control to accurately maintain your vehicle's speed. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues affecting the cruise control system. Additionally, inspect the brake and clutch switches, as faulty switches can prevent the cruise control from engaging. Lastly, examine the wiring and connections for any signs of damage or looseness, as these can impede the system's performance. If these steps do not resolve the issue, consulting a professional mechanic or an authorized BMW service center is advisable for a comprehensive diagnosis and repair. By following this structured approach, you can efficiently identify the root cause of the cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2021 BMW M550i xDrive?

When the cruise control in your 2021 BMW M550i xDrive ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is a faulty speed sensor, which is crucial for the cruise control system to accurately gauge the vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain the desired speed. Another frequent issue arises from the brake light switch; if this switch is defective, it can send incorrect signals to the cruise control system, disrupting its operation. Additionally, a malfunctioning throttle actuator can hinder the cruise control's ability to adjust the throttle position, further complicating its functionality. In some cases, the cruise control module itself may be at fault, leading to a complete lack of response to user commands. Lastly, electrical problems such as wiring issues or blown fuses can also impede the cruise control system's performance. By identifying these potential issues, you can take the first steps toward troubleshooting and restoring your vehicle's cruise control functionality.

How urgent is the repair for the non-functioning cruise control in a 2021 BMW M550i xDrive?

When faced with a non-functioning cruise control in your 2021 BMW M550i xDrive, it is crucial to assess the urgency of the repair based on several key factors. First and foremost, safety should be your primary concern; a malfunctioning cruise control system can lead to erratic speed management, increasing the risk of accidents, especially during long drives or in heavy traffic. Additionally, the comfort and convenience that cruise control provides can significantly reduce driver fatigue on extended journeys, making it a valuable feature for those who frequently travel long distances. Furthermore, addressing this issue promptly can help preserve your vehicle's resale value, as potential buyers often shy away from cars with known functional problems. By prioritizing the repair of your cruise control, you not only enhance your driving experience but also ensure your safety and protect your investment in the long run.

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.

2021 BMW M550i xDrive Cruise Control Issues & Solutions