2015 BMW 228i Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your 2015 BMW 228i and How to Resolve Them

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Reviewed by
Andrew Hajjar
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 2015 BMW 228i 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 tire 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 2015 BMW 228i 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 2015 BMW 228i?

To effectively diagnose the tire pressure warning light issue on your 2015 BMW 228i, start with a manual check of each tire's pressure using a reliable gauge. This initial step is crucial as it helps identify any tires that may be under-inflated, which is often the primary reason for the warning light activation. If you discover that one or more tires are significantly below the recommended pressure, inflate them to the correct levels, as fluctuations in temperature or slow leaks can contribute to pressure loss. After adjusting the tire pressures, if the warning light remains illuminated, it may indicate a malfunctioning tire pressure monitoring sensor. In this case, you should consider resetting the TPMS system, which can often be done through a specific procedure outlined in your vehicle's manual or with the help of a diagnostic scanner. Understanding the workings of the TPMS and being aware of common issues can empower you to address the problem effectively, ensuring your vehicle remains safe and roadworthy.

What could be causing the tire pressure warning light to stay on in a 2015 BMW 228i?

When the tire pressure warning light stays illuminated in your 2015 BMW 228i, it signals that there may be underlying issues that need your attention. The most common culprit is low tire pressure, which can occur due to natural air loss, temperature changes, or a slow leak that may not be immediately visible. To start, manually check each tire's pressure with a reliable gauge and inflate or deflate them to the manufacturer's recommended levels. If the pressure is correct and the light remains on, the problem could lie with the Tire Pressure Monitoring (TPM) sensors themselves. These sensors can malfunction or become damaged, leading to inaccurate readings. Additionally, changes in atmospheric pressure, especially after driving to different altitudes, can also affect sensor performance. If you've ruled out these issues and the warning light persists, consider using an OBD2 scanner or a TPMS reset tool to reprogram the sensors, as they may have lost their calibration. By methodically addressing these factors, you can effectively diagnose and resolve the tire pressure warning light issue, ensuring your BMW remains safe and reliable on the road.

How urgent is it to address the tire pressure warning light on my 2015 BMW 228i?

Addressing the tire pressure warning light on your 2015 BMW 228i is an urgent matter that should not be overlooked. Ignoring this warning can lead to serious safety risks, including compromised vehicle handling and increased likelihood of tire blowouts, which can result in accidents. Additionally, driving with underinflated tires can accelerate tire wear, leading to costly replacements and negatively impacting your vehicle's fuel efficiency. Temperature fluctuations can also cause tire pressure to drop unexpectedly, making it essential to regularly check and maintain proper inflation levels. By promptly addressing the tire pressure warning light, you not only ensure your safety on the road but also protect your vehicle from potential damage and enhance its overall performance. Taking the time to check and adjust your tire pressure can save you from more significant issues down the line, making it a critical step in responsible vehicle maintenance.

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2015 BMW 228i Tire Pressure Warning Light: Causes & Repairs