The TPMS (Tire Pressure Monitoring System) in the GLB Series is a key safety feature, but it can sometimes show a “Tire Pressure Sensor Fault” due to:
- Low or Unbalanced Tire Pressure: A small drop or imbalance in pressure across the tires can trigger the system, especially after weather changes.
- Faulty or Worn-Out Sensors: Over time, TPMS sensors can fail due to wear or damage, particularly after extensive use or tire changes.
- Dead Sensor Batteries: The TPMS sensors have batteries that typically last 5-7 years. Once the battery is low, the sensor will stop functioning properly.
- Improper System Reset: If you’ve recently rotated or replaced your tires, the system may not automatically recalibrate and will require a manual reset.
- Software Glitches: Occasionally, software bugs can cause false warnings, which may require a software update or system reset.
How to Fix the Tire Pressure Sensor Fault in the Mercedes-Benz GLB Series
- Check Tire Pressure:
- Use a tire pressure gauge to check each tire, ensuring it matches the recommended levels found on a sticker inside the driver’s door or in the vehicle’s manual.
- Inflate or adjust the tires to the correct pressure as needed.
- Reset the TPMS System:
- Turn the ignition to the ON position without starting the engine.
- Use the steering wheel buttons to access the “Service” menu on the dashboard.
- Navigate to “Tire Pressure” and select “Restart”.
- Confirm the reset and drive the vehicle for a few minutes to allow the system to recalibrate.
- Inspect TPMS Sensors:
- If the fault persists, one or more of the sensors may be faulty, or the batteries may be depleted.
- Visit a Mercedes-Benz service center to have the sensors checked and replaced if necessary.
- Update Software:
- If the problem isn’t hardware-related, your system may require a software update. Check with your dealership to see if any updates are available.
- Seek Professional Help:
- If resetting the system and checking the sensors doesn’t resolve the issue, consult a professional technician at a Mercedes-Benz service center for a full diagnostic.
Preventing Future Tire Pressure Sensor Issues in the GLB Series
- Regularly check tire pressure, especially during temperature changes or before long trips.
- Replace TPMS sensors every 5-7 years or when replacing tires to prevent battery-related issues.
- Ensure the system is properly reset after any tire maintenance.