2022 Mercedes-Benz GLB250 Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2022 Mercedes-Benz GLB250: Causes and Solutions

Find Repair Location
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 2022 Mercedes-Benz GLB250 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 2022 Mercedes-Benz GLB250 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 of a TPMS control module failure are failing to alert the driver of underinflation or overinflation of one or more tires, failure to communicate with the body control module or TPMS sensors, or erroneously reporting incorrect tire pressure.

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 persistent tire pressure warning light on my 2022 Mercedes-Benz GLB250?

To effectively diagnose the persistent tire pressure warning light on your 2022 Mercedes-Benz GLB250, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the tire pressure of all four tires, ensuring they are inflated to the manufacturer's recommended levels, as low pressure is a frequent trigger for the warning light. Next, inspect each tire for visible damage or punctures that could lead to air leaks. If the tires appear to be in good condition, proceed to reset the tire pressure monitoring system following the instructions in your vehicle's manual, as this can sometimes clear false warnings. Additionally, examine the tire pressure sensors on each wheel to confirm they are functioning properly and are not damaged. If the warning light remains illuminated after these steps, it may be necessary to consult a qualified mechanic or dealership for a comprehensive diagnosis and repair. By following this diagnostic approach, you can systematically address the issue and potentially resolve the warning light without unnecessary complications.

What could cause the tire pressure warning light to stay on in a 2022 Mercedes-Benz GLB250?

When the tire pressure warning light remains illuminated in a 2022 Mercedes-Benz GLB250, it can be attributed to several common problems that DIYers can investigate. The most frequent culprit is low tire pressure, which can easily be checked using a tire pressure gauge. Ensuring that all tires are inflated to the manufacturer's recommended levels is crucial for both safety and performance. If the pressure is adequate, the next step is to consider the possibility of a faulty tire pressure sensor. These sensors can malfunction over time, and replacing them may be necessary to restore proper functionality. Additionally, sensor calibration issues can arise, particularly after tire rotations or replacements; recalibrating the sensors can often resolve this problem. Electrical faults within the tire pressure monitoring system can also trigger the warning light, necessitating a diagnostic test to pinpoint the issue. Lastly, be mindful of extreme temperature changes, as they can affect tire pressure readings and cause the warning light to activate. By systematically checking these factors, you can effectively troubleshoot the tire pressure warning light issue and ensure your vehicle remains safe and roadworthy.

What immediate steps should be taken if the tire pressure warning light remains on in a 2022 Mercedes-Benz GLB250?

When the tire pressure warning light remains illuminated in your 2022 Mercedes-Benz GLB250, it is crucial to act swiftly to ensure your safety and the longevity of your vehicle. Start by checking the tire pressure in all four tires with a reliable gauge, as driving on underinflated tires can lead to poor handling, increased tire wear, and even blowouts. If you find any tires are below the recommended pressure, inflate them immediately using a quality air compressor. Additionally, visually inspect each tire for any signs of damage, such as punctures or bulges, which could compromise their integrity. Once you have adjusted the tire pressure, don’t forget to reset the tire pressure monitoring system, as this will help clear the warning light and ensure accurate readings moving forward. If the warning light persists despite these efforts, it is essential to consult a qualified mechanic or an authorized Mercedes-Benz service center. Ignoring this warning could not only jeopardize your safety on the road but also lead to more significant mechanical issues down the line, making timely intervention vital.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.