Tire Pressure Sensor Fault in Mercedes-Benz GLS

October 22, 2024 TirePressureFault Mercedes-Benz 0

The TPMS in the GLS Series monitors tire pressure to ensure safe driving, but the system might occasionally show a fault due to the following reasons:

  • Low Tire Pressure: Even a minor drop in tire pressure, often due to seasonal temperature changes or slow leaks, can trigger the alert.
  • Faulty or Worn-Out TPMS Sensors: Over time, sensors may wear out, especially after years of use or frequent tire changes.
  • Battery Depletion: The TPMS sensors have small batteries that typically last around 5-7 years. When the battery depletes, the sensor will stop working.
  • Improper System Reset: If you’ve recently rotated or replaced your tires, the system may need a manual reset to recalibrate.
  • Software Glitches: Occasionally, a software glitch may cause a false sensor fault, which may require an update or reset.

Steps to Fix the Tire Pressure Sensor Fault in Mercedes-Benz GLS

  1. Check Tire Pressure:
    • Use a tire pressure gauge to check the pressure of all four tires. Make sure they are inflated to the manufacturer’s recommended levels, which you can find in the manual or on a sticker inside the driver’s door.
    • Adjust the tire pressure if necessary.
  2. Reset the TPMS System:
    • Turn the ignition to the ON position without starting the engine.
    • Using the steering wheel buttons, navigate to the “Service” menu on the dashboard.
    • Scroll to “Tire Pressure” and select “Restart”.
    • Confirm the reset and drive for a few minutes to allow the system to recalibrate.
  3. Inspect TPMS Sensors:
    • If the fault persists, one or more of the TPMS sensors may be damaged or the sensor batteries may need replacing.
    • A Mercedes-Benz service center can test the sensors and replace them if needed.
  4. Software Update:
    • If the sensors are in good condition, the issue may be software-related. Check with your dealer to see if a software update is available.
  5. Seek Professional Assistance:
    • If resetting and updating don’t resolve the issue, a diagnostic test at a Mercedes-Benz service center will help identify the underlying problem.

Preventing Future Tire Pressure Sensor Faults in GLS Series

  • Regularly check your tire pressure, especially during seasonal changes or long drives.
  • Replace TPMS sensors every 5-7 years or when changing tires to prevent battery-related issues.
  • Always reset the TPMS system after tire maintenance, such as rotations or replacements.