The HERMES module needs a full power cycle to reboot. Turning the car off and on usually isn’t enough because the module stays in a "standby" state. You need to force a deep sleep.
: If you recently replaced a windshield or a mirror, the code might be permanent until a static or dynamic calibration is performed using professional software. 5. When to See a Professional
If this code is present, you might notice:
The HERMES module needs a full power cycle to reboot. Turning the car off and on usually isn’t enough because the module stays in a "standby" state. You need to force a deep sleep.
: If you recently replaced a windshield or a mirror, the code might be permanent until a static or dynamic calibration is performed using professional software. 5. When to See a Professional mercedesbenz errorb1fbd54 free
If this code is present, you might notice: The HERMES module needs a full power cycle to reboot