2015 BMW X5 Tire Pressure Warning Light Stays On

Troubleshooting the Persistent Tire Pressure Warning Light in Your 2015 BMW X5 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 X5 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 X5 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 a tire pressure warning light that stays on in a 2015 BMW X5?

When faced with a tire pressure warning light that remains illuminated in your 2015 BMW X5, the first step is to manually check the tire pressure using a reliable gauge. This ensures that all tires are inflated to the manufacturer's recommended levels, as low pressure is a common trigger for the warning light. If the tire pressures are correct, the next step is to reset the Tire Pressure Monitoring System (TPMS), which can often resolve the issue if the light persists. Refer to your owner's manual for specific reset instructions tailored to your model. If the light continues to stay on, inspect the TPMS sensors for any signs of malfunction or damage, as faulty sensors can lead to erroneous warnings. Additionally, consider checking the sensor batteries and the TPMS receiver for any operational issues, as these components can also affect the system's performance. Lastly, if your vehicle is equipped with an indirect TPMS, investigate any potential traction loss that could be causing the warning light to activate. By systematically following these steps, you can effectively diagnose and address the tire pressure warning light issue in your BMW X5.

What could be causing the tire pressure warning light to stay on in a 2015 BMW X5?

When the tire pressure warning light stays on in a 2015 BMW X5, it can be indicative of several underlying issues that require attention. One of the most common problems is a leaking tire, which may not be immediately apparent during a visual inspection. A slow air leak can gradually decrease tire pressure, prompting the warning light to activate. Additionally, a malfunctioning tire pressure monitoring system (TPMS) could be the culprit, signaling that the system itself may need servicing. Environmental factors, such as changes in altitude or atmospheric pressure, can also impact TPMS readings, potentially causing the warning light to illuminate even if the tires are adequately inflated. To effectively troubleshoot this issue, it is essential to regularly monitor tire pressure, conduct thorough inspections for any signs of leaks, and ensure that the TPMS is operating correctly. By addressing these common problems, you can help ensure the safety and optimal performance of your BMW X5.

How urgent is it to address the tire pressure warning light on a 2015 BMW X5 that stays on?

When the tire pressure warning light on your 2015 BMW X5 remains illuminated, it is crucial to take immediate action. This warning is not merely a suggestion; it signifies that your tire pressure may be below the recommended levels, which can severely impact your vehicle's handling, fuel efficiency, and overall safety. Ignoring this alert can lead to a range of problems, including decreased traction, increased tire wear, and even the risk of a blowout, all of which can compromise your driving experience and safety on the road. Additionally, the warning light could indicate underlying issues with the tire pressure monitoring system (TPMS) or faulty sensors, which require professional attention to prevent further complications. Therefore, it is essential to investigate the cause of the warning light as soon as possible, check your tire pressure, and make any necessary adjustments or repairs to ensure your BMW X5 operates safely and efficiently.

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