2015 BMW X6 Tire Pressure Warning Light Stays On

Troubleshooting the Persistent Tire Pressure Warning Light in Your 2015 BMW X6 and How to Resolve It

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Reviewed by
Bo Fader
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 X6 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 X6 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 are the initial steps to diagnose the tire pressure warning light on a 2015 BMW X6?

To diagnose the tire pressure warning light on your 2015 BMW X6, start by checking the air pressure in all tires, as low pressure is a common trigger for the warning light. Inflate any tires that are below the recommended pressure, which you can find in the owner's manual or on a sticker inside the driver's door. After ensuring all tires are properly inflated, consult the owner's manual for specific instructions on resetting the tire pressure monitoring system (TPMS). If the warning light remains illuminated, it may be necessary to reset the RDC control unit, which involves calculating the wheel diameter based on revolutions and speed. To perform a reset, make sure the engine is running, navigate to the settings menu, and select "Perform Reset." Following these steps will help you effectively address the tire pressure warning light and maintain optimal tire performance.

What could be causing the tire pressure warning light to remain on in a 2015 BMW X6?

When the tire pressure warning light remains illuminated in a 2015 BMW X6, it often indicates several common issues that DIY enthusiasts can troubleshoot. The first step is to manually check the tire pressure with a reliable gauge, as improper inflation is the most frequent culprit behind this warning. If the tire pressure is within the recommended range, the problem may stem from the Tire Pressure Monitoring (TPM) sensors, which can malfunction and provide inaccurate readings. Additionally, be mindful of temperature fluctuations, as changes in ambient conditions can affect tire pressure and trigger the warning light even when tires are properly inflated. It's also important to inspect each tire for slow air leaks, which may not be immediately visible but can still cause the warning to activate. If these steps do not resolve the issue, consider using an OBD2 scanner or a TPMS reset tool to reprogram the sensors, ensuring they are functioning correctly. By systematically addressing these potential problems, you can effectively troubleshoot and resolve the tire pressure warning light issue in your BMW X6.

How urgent is it to address the tire pressure warning light on a 2015 BMW X6 that stays on?

When the tire pressure warning light on your 2015 BMW X6 remains illuminated, it is crucial to take immediate action. This warning is not just a minor inconvenience; it signals a potential issue that could compromise your vehicle's performance and safety. Low tire pressure can lead to decreased fuel efficiency, increased tire wear, and a higher risk of tire blowouts, which can endanger both you and other drivers on the road. If you inflate your tires and the light persists, it may indicate a slow leak or a malfunction within the Tire Pressure Monitoring System (TPMS), necessitating further investigation. Ignoring this warning can result in costly repairs and unsafe driving conditions, making it essential to address the issue promptly. By staying proactive and attentive to your vehicle's needs, you can ensure a safer driving experience and prolong the life of your tires.

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