2020 BMW 430i XDrive Gran Coupe Cruise Control Isn't Working

Fixing Cruise Control Issues in 2020 BMW 430i xDrive Gran Coupe

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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 2020 BMW 430i 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 2020 BMW 430i 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 are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2020 BMW 430i xDrive Gran Coupe?

When troubleshooting the non-functioning cruise control in your 2020 BMW 430i xDrive Gran Coupe, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse, as a blown fuse is a common and easily fixable issue that can halt the system's operation. Next, inspect the cruise control buttons on the steering wheel to ensure they are responsive; sometimes, dirt or wear can impede their functionality. Following this, verify the speed sensor, which is crucial for the cruise control to maintain a set speed; if this sensor is malfunctioning, it can prevent the system from engaging. Utilizing a diagnostic scanner to check for error codes can provide insights into any underlying issues that may not be immediately visible. Additionally, examine the brake and clutch switches, as faulty switches can inadvertently disable the cruise control. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as compromised wiring can disrupt the necessary signals. By following these steps, you can effectively diagnose and potentially resolve the cruise control issues in your BMW, making it a rewarding DIY project.

What are the common problems that could cause the cruise control to malfunction in a 2020 BMW 430i xDrive Gran Coupe?

When troubleshooting cruise control malfunctions in a 2020 BMW 430i xDrive Gran Coupe, it's essential to consider several common problems that may arise. A faulty speed sensor is often at the forefront, as it plays a critical role in relaying accurate speed information to the cruise control system; if it fails, the system may struggle to maintain the desired speed. Additionally, the brake light switch can be a culprit, as any malfunction here can cause the cruise control to disengage unexpectedly when the brakes are applied, leading to frustrating driving experiences. Another area to investigate is the throttle control system; if it malfunctions, the cruise control may not be able to maintain speed effectively. Electrical issues, such as blown fuses or wiring problems, can also disrupt the cruise control function, making it vital to check the vehicle's electrical system. Lastly, software glitches within the vehicle's control module can lead to erratic cruise control behavior, so ensuring that the software is up to date is crucial. By understanding these common issues, DIY enthusiasts can better diagnose and address cruise control problems in their BMW, ensuring a smoother and safer driving experience.

How urgent is it to address the malfunctioning cruise control in a 2020 BMW 430i xDrive Gran Coupe?

When it comes to a malfunctioning cruise control in your 2020 BMW 430i xDrive Gran Coupe, the urgency to address the issue cannot be overstated. A faulty cruise control system poses significant safety risks, as it can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which could result in accidents. Beyond safety, a malfunctioning system detracts from the overall driving experience, making long journeys less comfortable and convenient. Additionally, timely repairs are essential for maintaining optimal vehicle performance; neglecting the issue may lead to further complications that could compromise the integrity of the vehicle's systems. Moreover, addressing the problem early can save you from incurring costly repairs down the line, as minor issues can escalate into major ones if left unattended. Therefore, it is crucial to prioritize the repair of your cruise control system to ensure a safe and enjoyable driving experience while protecting your investment in the vehicle.

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2020 BMW 430i xDrive Gran Coupe Cruise Control Issues