2021 BMW 740i XDrive Cruise Control Isn't Working

Fixing Cruise Control Issues in 2021 BMW 740i xDrive

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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 2021 BMW 740i 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.

How much does it cost to fix a 2021 BMW 740i xDrive 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 2021 BMW 740i xDrive?

When diagnosing the cruise control issue in your 2021 BMW 740i xDrive, it's crucial to follow a methodical approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, examine the cruise control buttons on the steering wheel to ensure they are working correctly, since malfunctioning buttons can prevent proper engagement. Utilizing a diagnostic scanner to retrieve error codes from the vehicle's onboard computer can provide valuable insights into the underlying problem. Additionally, check the speed sensors, which are essential for the cruise control system's operation, to ensure they are functioning properly. It's also wise to inspect the wiring connections related to the cruise control system for any signs of damage or loose connections, as these can hinder performance. Finally, test the cruise control module to verify that it is sending the correct signals. If these initial steps do not resolve the issue, seeking assistance from a professional mechanic or an authorized BMW service center is recommended for a thorough diagnosis and repair. By adhering to this structured diagnostic process, you can effectively pinpoint and address the cruise control problem in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2021 BMW 740i xDrive?

When troubleshooting the cruise control system in a 2021 BMW 740i xDrive, it's essential to understand the common problems that may lead to its malfunction. One prevalent 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 functionality, as it may fail to disengage when the brakes are applied. Another potential culprit is a malfunctioning throttle actuator, which can hinder the system's ability to adjust the throttle position effectively. Furthermore, a defective cruise control module can impede the system's capacity to process necessary signals, resulting in operational failures. Lastly, various electrical issues, such as wiring problems or blown fuses, can also contribute to the cruise control's inability to function properly. Identifying these issues is crucial for anyone looking to perform DIY repairs, as addressing them can restore the cruise control system to its intended performance.

How urgent is it to address the non-functioning cruise control in a 2021 BMW 740i xDrive?

When it comes to a non-functioning cruise control in a 2021 BMW 740i xDrive, the urgency of addressing the issue cannot be overstated. While it may seem like a minor inconvenience, neglecting this problem can lead to more significant safety risks and potential damage to your vehicle. Cruise control is designed to enhance driving comfort, especially on long trips, and its malfunction could indicate deeper issues within the vehicle's electronic systems or sensors. These underlying problems might not only affect the cruise control but could also compromise other critical systems, leading to costly repairs down the line. Moreover, a malfunctioning cruise control can pose safety hazards, particularly during highway driving where maintaining a steady speed is crucial. Therefore, while it may not be an immediate emergency, it is wise for DIY enthusiasts to prioritize diagnosing and addressing the issue promptly to ensure both their safety and the longevity of their vehicle. Taking action sooner rather than later can save time, money, and enhance the overall driving experience.

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2021 BMW 740i xDrive Cruise Control Issues & Repairs