2021 BMW M8 Gran Coupe Tire Pressure Warning Light Stays On

Troubleshooting the Tire Pressure Warning Light in Your 2021 BMW M8 Gran Coupe: Causes and Solutions

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Tire Leaking Air
0%
30% chance it's the
Wheel Leaking Air
0%
15% chance it's the
Tire Pressure Monitoring System
0%
15% chance it's
Something else
The most common reasons a 2021 BMW M8 Gran Coupe tire pressure warning light stays on are a leaking tire, a wheel that no longer holds air, or a faulty tire pressure monitoring system.
  • Tire Leaking Air: A puncture, valve stem issue, or rim damage can cause a tire to leak air, leading to loss of pressure.
  • Wheel Leaking Air: A puncture or damage to the tire or rim can cause air to leak, resulting in a loss of tire pressure.
  • Tire Pressure Monitoring System: A malfunctioning tire pressure monitoring system can be caused by faulty sensors or a dead battery in the sensor units.
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 2021 BMW M8 Gran Coupe tire pressure warning light stays on?

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.

When a tire pressure monitoring sensor fails, the tire pressure monitoring system control module will recognize a loss in communication and turn on the warning lamp which indicates the failure. This is most often the case. However, the tire pressure monitoring sensor may also fail by reporting incorrect tire pressures. This could cause a flat tire to go unrecognized, or a properly inflated tire to signal a low or high tire pressure warning.

When a relearn is needed, for any reason, the TPMS warning light will illuminate, and many vehicles will display a message relating to the TPMS system being inoperative or loosing communication. It is important to keep a watchful eye on tire pressures when this system is having issues because there is no warning available for underinflation or overinflation of the tires.

Wheels offer very few symptoms, but these symptoms should never be ignored. Visible cracks on the wheels may appear, especially after hitting a large bump, Most often, this will also be accompanied by loss of air from the tire on that wheel. Also, vibration in the steering wheel is very common when the tire is out of balance, and improper wheel nuts or bolts can cause creaking and popping noises to develop. Again, there are very few symptoms, but they should not be ignored.

The only symptoms requiring diagnosis for the tire pressure monitoring system warning lamp is if the warning lamp has illuminated while the tires have correct air pressure, or if the air pressure for the tires is out of specification and the warning lamp is off. This is because the overwhelming majority of cases where the TPMS lamp illuminates is due to the change in ambient temperature.

What steps should I take to diagnose the tire pressure warning light issue on my 2021 BMW M8 Gran Coupe?

To effectively diagnose the tire pressure warning light issue on your 2021 BMW M8 Gran Coupe, begin with a straightforward approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by manually checking the tire pressure of all four tires using a reliable tire pressure gauge, ensuring that the readings align with the manufacturer's recommended levels found in your owner's manual or on the sticker located inside the driver's side door jamb. Next, conduct a visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, as these can lead to pressure loss and trigger the warning light. If the tire pressure is correct and no visible damage is found, consult your vehicle's manual to reset the tire pressure monitoring system (TPMS), as it may require recalibration. Should the warning light persist despite these efforts, it may be prudent to seek assistance from a professional mechanic or an authorized BMW service center for a comprehensive inspection. Additionally, consider the possibility of a malfunctioning sensor, which a qualified technician can diagnose and replace if necessary. By following this methodical approach, you can effectively address the tire pressure warning light issue and ensure the safety and performance of your vehicle.

What are the common problems that could cause the tire pressure warning light to stay on in a 2021 BMW M8 Gran Coupe?

When the tire pressure warning light stays illuminated in a 2021 BMW M8 Gran Coupe, it is essential to identify the underlying issues that may be causing this alert. One of the most frequent reasons is low tire pressure, which can occur due to a slow leak, changes in temperature, or improper inflation practices. Additionally, a malfunctioning tire pressure sensor may fail to provide accurate readings, resulting in the warning light remaining on. In some instances, the sensors may need recalibration to ensure they are working correctly. Furthermore, electrical or wiring problems can disrupt the signals from the tire pressure monitoring system, leading to a persistent warning light. Lastly, a faulty control module could be responsible for the warning, even when tire pressures are adequate. Addressing these potential issues is crucial for the safety and performance of your vehicle, and seeking assistance from a qualified mechanic can help effectively diagnose and resolve the problem.

How urgent is it to address the tire pressure warning light on a 2021 BMW M8 Gran Coupe?

When the tire pressure warning light illuminates on your 2021 BMW M8 Gran Coupe, it signals an urgent need for attention to ensure your safety and the vehicle's performance. Ignoring this warning can lead to compromised handling and stability, particularly in critical driving situations. For DIY enthusiasts, the first step is to check the tire pressure using a reliable gauge; this will help you determine if the tires are under-inflated or over-inflated. Maintaining the correct tire pressure not only enhances your vehicle's handling but also promotes even tire wear and improves fuel efficiency, ultimately saving you money in the long run. Additionally, driving on improperly inflated tires increases the risk of damage, such as blowouts, which can be both dangerous and costly. Therefore, addressing the tire pressure warning light without delay is essential for a safe and enjoyable driving experience. Regularly monitoring your tire pressure and making necessary adjustments can help you avoid potential hazards and keep your BMW M8 Gran Coupe performing at its best.

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