2019 BMW 640i XDrive Gran Coupe Cruise Control Isn't Working

Fixing Cruise Control Issues in 2019 BMW 640i xDrive Gran Coupe

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Reviewed by
Andrew Hajjar
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 BMW 640i xDrive Gran Coupe 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 BMW 640i xDrive Gran Coupe 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 2019 BMW 640i xDrive Gran Coupe?

To effectively diagnose the cruise control issue in your 2019 BMW 640i xDrive Gran Coupe, start with the simplest solutions before progressing to more complex diagnostics. Begin by checking 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. If these initial checks do not reveal the problem, use an OBD-II scanner to identify any error codes related to the cruise control system, as these codes can provide critical insights into the underlying issue. Following this, verify the functionality of the vehicle's speed sensors, which are essential for the cruise control system to operate correctly. Additionally, ensure that all wiring connections associated with the cruise control system are secure and free from corrosion or damage. If the issue persists, test the cruise control module itself, as a malfunctioning module can lead to operational problems. Should you still be unable to diagnose the issue, it is wise to consult a professional mechanic or an authorized BMW service center for expert assistance. By following this structured approach, you can systematically identify and address the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2019 BMW 640i xDrive Gran Coupe?

When the cruise control in your 2019 BMW 640i xDrive Gran Coupe 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 maintain the desired speed. If this sensor is malfunctioning, it may not relay accurate information to the system. Another potential issue is the brake light switch; if this switch is defective, it can inadvertently signal the cruise control to disengage whenever the brakes are applied, disrupting its operation. Additionally, problems with the throttle actuator can hinder the system's ability to adjust speed, while electrical issues, such as blown fuses or damaged wiring, can also interfere with cruise control functionality. Lastly, don’t overlook the possibility of a software glitch within the vehicle's control module, which can occasionally cause the cruise control to misbehave. By systematically checking these components, you can identify and potentially resolve the issue, restoring your cruise control to its intended functionality.

How urgent is it to address the non-functioning cruise control in a 2019 BMW 640i xDrive Gran Coupe?

When it comes to the non-functioning cruise control in a 2019 BMW 640i xDrive Gran Coupe, understanding the urgency of the situation is crucial for any DIY enthusiast. While the absence of this feature may not pose an immediate safety risk, it can significantly impact your driving experience, especially on long journeys where maintaining a consistent speed is beneficial for reducing fatigue and enhancing fuel efficiency. Ignoring this issue could lead to more complex problems down the line, particularly if the malfunction is indicative of underlying mechanical or electrical faults that could affect other systems in your vehicle. Therefore, while it may not be critical to address the cruise control issue right away, taking prompt action is advisable to ensure your vehicle remains in optimal condition and to prevent any potential complications that could arise from prolonged neglect.

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