2019 BMW I8 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 BMW i8 and How to Fix Them

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Reviewed by
Devin Cabugcal
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 i8 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 i8 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 i8?

When diagnosing a cruise control issue in your 2019 BMW i8, it's essential to adopt a systematic approach that begins with the simplest checks before progressing to more complex diagnostics. Start by verifying that the cruise control settings are correctly configured and that the system is activated. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or malfunction, as these can often be the source of the problem. If the buttons appear to be functioning correctly, utilize a diagnostic scanner to check for any error codes that may indicate specific issues within the cruise control system. Additionally, examine the fuse associated with the cruise control; a blown fuse can easily disrupt functionality. If these initial checks do not resolve the issue, proceed to test the sensors responsible for monitoring speed and distance, as faulty sensors can significantly impact cruise control performance. Finally, inspect the wiring connections for any loose or damaged wires, as these can also lead to malfunctions. By following this structured diagnostic approach, you can effectively identify and address the cruise control issue in your BMW i8.

What are the common problems that could cause the cruise control to stop working in a 2019 BMW i8?

When troubleshooting the cruise control system in a 2019 BMW i8, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can hinder 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 it malfunctions, the cruise control may disengage unexpectedly, as it relies on this switch to detect when the brakes are applied. Another potential culprit is the throttle actuator, which is responsible for communicating with the engine; any issues here can disrupt the cruise control's functionality. Electrical problems, such as blown fuses or wiring issues, can also impede the system's operation, as can software glitches within the vehicle's control module. Identifying these common problems can help DIY enthusiasts diagnose and address the issues effectively, ensuring the cruise control system operates smoothly once again.

How urgent is it to address the malfunctioning cruise control in a 2019 BMW i8?

When it comes to a malfunctioning cruise control system in your 2019 BMW i8, the urgency of addressing the issue cannot be overstated. A faulty cruise control can significantly disrupt your driving experience, making it inconvenient and potentially dangerous. Safety should always be a top priority; a malfunctioning system may lead to unpredictable vehicle behavior, increasing the risk of accidents not only for you but also for other road users. Moreover, neglecting this issue can result in further complications, potentially leading to more extensive and costly repairs down the line. For those inclined to take a DIY approach, it is crucial to diagnose the problem accurately and act swiftly to ensure that your vehicle remains safe and performs optimally. By prioritizing timely maintenance and repairs, you not only enhance your driving experience but also protect your investment in your BMW i8.

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2019 BMW i8 Cruise Control Not Working | RepairPal