2018 BMW X5 Tire Pressure Warning Light Stays On

Resolve the Tire Pressure Warning Light in Your 2018 BMW X5

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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 2018 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 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 2018 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 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 in my 2018 BMW X5?

When diagnosing the tire pressure warning light issue in your 2018 BMW X5, it's essential to adopt a systematic approach that prioritizes simpler solutions before moving on to more complex diagnostics. Begin by manually checking the tire pressure in all four tires with a reliable tire pressure gauge, ensuring that the readings align with the recommended levels found in your vehicle's manual. This initial step can often resolve the issue if the pressure is simply low. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, which could indicate a more serious problem. If the tires appear to be in good condition, proceed to reset the tire pressure monitoring system, as this can sometimes clear false alerts. Additionally, inspect the valve stems for any signs of leaks or damage that could be contributing to the warning light. If, after these steps, the warning light remains illuminated, it may be time to consult a mechanic or a BMW service center for a comprehensive diagnosis and repair. By following this structured diagnostic approach, you can effectively address the tire pressure warning light issue and ensure your vehicle's safety on the road.

What could be causing the tire pressure warning light to stay on in a 2018 BMW X5?

When the tire pressure warning light remains illuminated in your 2018 BMW X5, it can be frustrating, but understanding the common problems can help you diagnose the issue. One of the primary culprits is low tire pressure, which can occur due to natural air loss or temperature changes, especially in colder weather. Regularly checking and inflating your tires to the recommended pressure is crucial. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor, which may require replacement if it fails to provide accurate readings. Additionally, sensor calibration issues can arise, necessitating a recalibration at a BMW service center to ensure proper functionality. Inspecting your tires for leaks or punctures is also essential, as a slow leak can lead to persistent low pressure. Furthermore, check for any wiring or connection problems within the tire pressure monitoring system, as these can disrupt communication and keep the warning light on. By systematically addressing these common issues, you can often resolve the warning light problem without needing professional assistance. However, if the light persists after your troubleshooting efforts, consulting a certified mechanic or BMW service center is advisable for a thorough diagnosis.

How urgent is it to address the tire pressure warning light on my 2018 BMW X5 that stays on?

Addressing the tire pressure warning light on your 2018 BMW X5 is not just a matter of convenience; it is a critical safety issue that demands immediate attention. Ignoring this warning can lead to serious safety concerns, as improper tire pressure significantly affects your vehicle's handling and braking capabilities, increasing the likelihood of accidents. Furthermore, driving on underinflated tires accelerates uneven wear, which can shorten their lifespan and lead to costly replacements. Additionally, low tire pressure can decrease your vehicle's fuel efficiency, resulting in higher fuel costs over time. The risk of tire damage, including blowouts, is another pressing concern that can arise from neglecting this warning. By promptly checking and adjusting your tire pressure, you not only ensure your safety but also protect your investment in your vehicle, making it essential to act quickly when the tire pressure warning light remains illuminated.

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2018 BMW X5 Tire Pressure Warning Light Causes & Repairs