after replacing battery in 2002 passat key fob; red lights wont quit blinking

Do this...Programing the button REMOTE portion of the key is simple. You do need 2 keys. You must be able to lock the drivers door and have the red led alarm light next to the lock button blink. If it does not blink, the alarm does not know the door is closed and will not go into program mode. Put one key in the ignition switch, turn on, do not start engine. Close the door, use 2nd key, turn door lock and hold in lock position for 10 seconds. Release key to neutral position. Press a button on the remote, within 2 seconds press the same button again, the turn signal lights will flash, this indicates your remote matches the car system and is now recognized. Unlock door remove key from ignition. Take yourself to lunch with all $ saved.

Your instructions are a bit confusing.