Volkswagen Passats are equipped with an immobilizer that will prevent the vehicle from starting if an FOB key is inserted into the ignition that does not sync with the vehicles anti-theft device. The FOB key has a microchip that is programmed to your specific Passat, thus if another FOB key is inserted into the ignition, it will become stuck. On the dashboard you will find a display stating "Immobilizer Active." This is an indication that the wrong key has been inserted into the ignition and has been "locked" to prevent theft. Removing the key only takes a few minutes and should not damage your vehicle.
Sit on the driver's seat and make sure the vehicle is in "Park."
Press and hold one foot against the brake pedal.
Locate the silver "Gear Change" button on your Passat's shifter.
Press and release the "Gear Change" button three times. You will hear a clicking noise which indicates the FOB key is now unlocked.
Remove the FOB key from the ignition. The "Immobilizer Active" alert will turn off.
