2015 BMW 428i Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 BMW 428i and How to Fix Them

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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 2015 BMW 428i cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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 2015 BMW 428i 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 non-functioning cruise control in my 2015 BMW 428i?

To effectively diagnose the non-functioning cruise control in your 2015 BMW 428i, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the fuse box for any blown fuses related to the cruise control system, as this is a common issue that can disrupt power to critical components. Next, examine the cruise control switch for any signs of damage or malfunction, particularly if you encounter error codes like P0578. Following this, assess the wiring within the cruise control circuit for any visible damage or loose connections that could be causing the malfunction. It’s also essential to check the functionality of the cruise control module and the engine control module, as these play a crucial role in the system's operation. Additionally, test the various sensors and switches, including the vehicle speed sensor and brake switch, to ensure they are providing accurate information. Lastly, inspect the brake lights, as a malfunctioning brake light can inadvertently affect the cruise control system. By following this structured diagnostic approach, you can efficiently identify the root cause of the cruise control issue and take the necessary steps to resolve it.

What are the common problems that could cause the cruise control to stop working in a 2015 BMW 428i?

When the cruise control in your 2015 BMW 428i ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One prevalent issue is sensor failure, particularly with the speed sensor, which can trigger warning lights and disrupt the cruise control's operation. Additionally, low brake fluid levels can inadvertently disable the system, as the cruise control relies on proper brake function to engage safely. In more severe cases, total brake failure may also lead to cruise control malfunctions. Another potential culprit is the control module, which can develop faults over time, affecting the entire cruise control system. Throttle problems can also interfere with cruise control functionality, as they are integral to maintaining speed. For those looking to tackle these issues themselves, a good starting point is to check for a blown fuse, as this is a common and easily fixable problem. Addressing these issues promptly is crucial for ensuring the safe and reliable operation of your vehicle's cruise control system.

How urgent is it to address the non-functioning cruise control in a 2015 BMW 428i?

Addressing a non-functioning cruise control in a 2015 BMW 428i is crucial for both safety and vehicle performance. Ignoring this issue can lead to more serious underlying problems, such as electrical failures or brake system malfunctions, which could compromise your driving safety, especially on long trips where cruise control is typically utilized. Additionally, a malfunctioning cruise control system can create discomfort during highway driving, making it difficult to maintain a consistent speed. By promptly diagnosing and fixing the issue, you not only enhance your driving experience but also prevent further damage to your vehicle's components, ensuring that your BMW operates at its best. Therefore, it is essential to take immediate action when faced with cruise control problems to safeguard your safety and the integrity of your vehicle.

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2015 BMW 428i Cruise Control Issues & Repairs | RepairPal