2020 BMW 440i Gran Coupe Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2020 BMW 440i Gran Coupe

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Reviewed by
Aisha
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 2020 BMW 440i 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 2020 BMW 440i 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 2020 BMW 440i Gran Coupe?

To effectively diagnose the cruise control issue in your 2020 BMW 440i Gran Coupe, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable problem that can disrupt the system's functionality. Next, examine the cruise control buttons on your steering wheel to ensure they are operational, as faulty buttons can lead to malfunctions. If these initial checks do not reveal the issue, utilize an OBD-II scanner to identify any error codes that may indicate specific problems within the cruise control system. Following this, inspect the speed sensors, as they play a crucial role in the system's operation; any faults here can directly affect cruise control performance. Additionally, check for any loose or damaged wiring connections that could be causing interruptions in the system. If all else fails, test the cruise control module itself, as a malfunctioning module can be the root cause of the issue. Should you still be unable to resolve the problem, it is advisable to consult a professional mechanic or an authorized BMW service center for expert assistance. By following this structured diagnostic approach, you can efficiently 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 2020 BMW 440i Gran Coupe?

When the cruise control in your 2020 BMW 440i Gran Coupe stops functioning, it can be frustrating, but understanding the common problems can help you diagnose the issue. One frequent culprit is a faulty speed sensor, which is essential for the cruise control system to maintain the desired speed accurately. If the speed sensor is malfunctioning, it may not relay the correct information to the system, causing it to fail. Another common issue is a defective brake light switch; if this switch is not working properly, it can inadvertently disengage the cruise control even when the brakes are not applied. Additionally, throttle-related problems, such as a malfunctioning throttle position sensor, can hinder the cruise control's ability to maintain speed. Electrical issues, including blown fuses or wiring problems, can also disrupt the system's functionality. Lastly, software glitches within the vehicle's onboard computer may lead to unexpected cruise control failures. If you encounter this issue, consider checking these components before seeking professional help, as addressing these common problems may restore your cruise control functionality.

How urgent is it to address the malfunctioning cruise control in my 2020 BMW 440i Gran Coupe?

When it comes to your 2020 BMW 440i Gran Coupe, addressing a malfunctioning cruise control system is not just a matter of convenience; it is a critical safety concern. A malfunction can lead to unexpected acceleration or deceleration, creating hazardous driving conditions that could endanger you and others on the road. Moreover, issues with the cruise control may signal deeper problems within the vehicle's electronic systems or sensors, which can compromise overall performance and drivability. Neglecting these symptoms can also result in decreased fuel efficiency and increased wear on your vehicle's components, leading to more costly repairs down the line. Therefore, it is essential to act promptly and have the issue diagnosed by a qualified mechanic to ensure your safety and maintain the integrity of your BMW. Taking swift action not only protects you but also helps prevent further damage to the cruise control system and related components, ensuring your vehicle remains in optimal condition.

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