: A small RFID transponder chip inside your key communicates with an antenna (reader coil) located around the ignition cylinder.
"Immobilizer Active" on a VW Passat is a security feature, not a glitch – but when it fails due to a faulty cluster or weak key, it acts like a glitch. Start with your second key and a battery check. Most cases require a diagnostic scan with VCDS. immobilizer active vw passat
Ensure the car battery is at least 12.4V. Low voltage can trigger immobilizer errors. : A small RFID transponder chip inside your
If you cannot start the car, you need a diagnostic tool. you need a diagnostic tool.