BMW M5 Tire Pressure Warning Light Stays On

Common Causes for the Persistent Tire Pressure Warning Light in Your BMW M5 and How to Resolve Them

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Reviewed by
Devin Cabugcal
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 BMW M5 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 BMW M5 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 of a TPMS control module failure are failing to alert the driver of underinflation or overinflation of one or more tires, failure to communicate with the body control module or TPMS sensors, or erroneously reporting incorrect tire pressure.

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.

Troubleshooting Persistent Tire Pressure Warning Light in a BMW M5

When troubleshooting a persistent tire pressure warning light in your BMW M5, it's crucial to follow a structured diagnostic approach to identify and resolve the issue effectively. Begin by manually checking the tire pressure in all four tires using a reliable gauge, as low tire pressure is the most frequent cause of the warning light activation. Ensure that each tire is inflated to the manufacturer's recommended levels, typically found on a sticker inside the driver's door. If the tire pressures are correct and the warning light remains illuminated, the next step is to investigate the Tire Pressure Monitoring System (TPMS) sensors, which may malfunction or provide inaccurate readings. Consult your vehicle's manual for the specific procedure to reset the TPMS light, as this may rectify the issue after adjusting the tire pressures. However, if the warning light continues to persist, it could indicate a more complex problem, such as a tire leak or a need for professional inspection of the TPMS system. To prevent future occurrences, make it a routine practice to regularly check your tire pressure and address any discrepancies promptly. By adhering to this methodical approach, you can effectively troubleshoot and resolve the tire pressure warning light issue in your BMW M5, ensuring optimal performance and safety.

Troubleshooting Tire Pressure Warning Light in a BMW M5

When troubleshooting the tire pressure warning light in your BMW M5, it's crucial to be aware of the common problems that can affect the Tire Pressure Monitoring System (TPMS). One prevalent issue is the failure of tire pressure sensors, which may provide inaccurate readings and trigger the warning light even if the tire pressures are within the recommended range. Additionally, tire leaks or punctures can lead to a slow loss of air, causing the TPM warning to activate. Another concern is the possibility of a dead battery in one of the sensors, which can disrupt the transmission of accurate pressure data to the vehicle's onboard computer. Moreover, if the TPMS has not been reset following a tire rotation or replacement, it may continue to display a warning light unnecessarily. By understanding these common failure modes, you can more effectively diagnose the underlying issues and take the appropriate steps to ensure your BMW M5's tire pressure monitoring system operates correctly.

Why is the Tire Pressure Warning Light Staying On in a BMW M5?

When the Tire Pressure Warning Light remains illuminated in your BMW M5, it is crucial to take immediate action, as neglecting this warning can lead to serious safety risks and costly repairs. Low tire pressure is the most common culprit, which can result in uneven tire wear, reduced fuel efficiency, and compromised handling. Additionally, fluctuations in temperature can cause tire pressure to drop or rise unexpectedly, further complicating the situation. If the light persists even after checking and adjusting the tire pressures, it may indicate a malfunction within the Tire Pressure Monitoring System (TPMS) itself, which could require professional attention. Regularly monitoring your tire pressure and addressing any discrepancies not only enhances your vehicle's performance but also ensures your safety on the road. Therefore, don’t overlook the Tire Pressure Warning Light; prompt action can prevent dangerous driving conditions and extend the life of your tires.

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BMW M5 Tire Pressure Warning Light: Causes & Solutions