2019 BMW M340i Cruise Control Isn't Working

Resolve cruise control issues in your 2019 BMW M340i for optimal functionality.

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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 2019 BMW M340i 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 M340i 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 steps to diagnose the cruise control issue in a 2019 BMW M340i?

When diagnosing cruise control issues in your 2019 BMW M340i, start by ensuring that the cruise control settings are correctly configured. Verify that the system is activated and set to your desired speed. Next, inspect the cruise control buttons on the steering wheel for any signs of malfunction, as faulty buttons can often be the culprit. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific problems affecting the cruise control system. Additionally, don’t forget to examine the cruise control fuse; a blown fuse can disrupt functionality. After these checks, take your vehicle for a test drive to see if the cruise control engages and maintains speed as expected. Lastly, ensure that the vehicle speed sensor is functioning properly, as it plays a crucial role in the operation of the cruise control system. By following these steps, you can effectively troubleshoot and potentially resolve cruise control issues on your own.

What are the common problems that could cause the cruise control to stop working in a 2019 BMW M340i?

When troubleshooting the cruise control system in a 2019 BMW M340i, 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, the brake light switch plays a crucial role; if this switch is malfunctioning, it may inadvertently signal the cruise control to disengage whenever the brake pedal is pressed, leading to operational issues. Another potential culprit is the throttle actuator, which regulates the engine's throttle opening; any malfunction here can hinder the cruise control's performance. Electrical problems, such as blown fuses or wiring issues, can also impede the system's functionality, as can software glitches within the vehicle's onboard computer, which may require updates or resets to rectify. By identifying these common problems, DIY enthusiasts can better diagnose and address the issues affecting their cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2019 BMW M340i?

Addressing a malfunctioning cruise control in a 2019 BMW M340i is of utmost importance due to the potential safety hazards it poses. A faulty system can lead to unexpected acceleration or deceleration, increasing the risk of accidents on the road. Moreover, cruise control issues may signal deeper electronic system or sensor malfunctions, which can compromise the vehicle's overall performance and handling. Ignoring these symptoms not only jeopardizes your safety but can also lead to increased fuel consumption and further damage to critical components, resulting in costly repairs down the line. Therefore, it is crucial to prioritize the diagnosis and repair of cruise control problems to ensure a safe and efficient driving experience.

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2019 BMW M340i Cruise Control Issues & Repairs | RepairPal