BMW 135is Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your BMW 135is and How to Resolve the Issue

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Reviewed by
Aisha
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 135is 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 135is 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.

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 135is

When faced with a persistent tire pressure warning light in your BMW 135is, it's essential to adopt a systematic diagnostic approach. Start by manually checking the tire pressure using a reliable gauge, as incorrect pressure readings can often trigger the warning light. Ensure that each tire is inflated or deflated to the manufacturer's recommended levels. If the light remains illuminated after adjusting the tire pressure, proceed to reset the Tire Pressure Monitoring (TPM) system, which can sometimes clear false warnings. Should the warning persist, it may indicate a malfunctioning tire pressure sensor, necessitating further investigation or potential replacement. If these steps do not resolve the issue, consulting a professional mechanic or a BMW service center is advisable for a comprehensive diagnosis. By following this methodical approach, you can effectively troubleshoot the tire pressure warning light and maintain your vehicle's safety and performance.

Troubleshooting Tire Pressure Warning Light in BMW 135is

When dealing with the tire pressure warning light in your BMW 135is, it's essential to recognize the common problems that could trigger this alert. One frequent issue is simply incorrect tire pressure; tires that are over or under-inflated can cause the warning light to illuminate. Additionally, a malfunction in the Tire Pressure Monitoring (TPM) system can lead to erroneous readings, which may stem from faulty sensors or a control module failure. It's also possible that the warning light persists due to a need for resetting after tire adjustments, as many drivers overlook this step. In some cases, physical damage to the tires, such as punctures or leaks, can contribute to pressure loss, prompting the warning light to activate. By understanding these common problems, you can effectively troubleshoot and maintain your vehicle's tire health, ensuring a safer driving experience.

Why is the Tire Pressure Warning Light Staying On in a BMW 135is?

When the tire pressure warning light remains illuminated in your BMW 135is, it is crucial to address the issue promptly to avoid serious safety risks and potential damage to your vehicle. Ignoring this warning can lead to underinflated tires, which not only compromise your vehicle's handling and braking performance but also increase the likelihood of tire blowouts. Additionally, a malfunctioning Tire Pressure Monitoring System (TPMS) sensor can prevent you from receiving accurate tire pressure readings, leaving you unaware of critical tire conditions. If the system itself is malfunctioning, it may fail to alert you to other tire-related issues, further exacerbating the risk of accidents. Moreover, neglecting to reset the TPMS after repairs can lead to confusion and misdiagnosis of tire health. Therefore, it is essential to regularly check your tire pressure, address any sensor malfunctions, and reset the system as needed to ensure your safety on the road and maintain the longevity of your tires. Taking these steps not only enhances your driving experience but also protects your investment in your BMW.

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