Key fob issues

I just replaced the battery in my 2006 Prius sks key fob and now I am unable to unlock/lock doors remotely and I also cannot start the car without the key inserted. I can unlock/lock the car with the manual key and I can start the car with the key inserted.

1. I think the fob battery is installed correctly. I’ve re installed it several times. The red light flases every time I press a button. Lock nor unlock seem to be stuck depressed

2. I don’t think I have any problems with my 12 volt battery - it was replaced recently in the past few months

3. I have tried to mess with the small button near the drivers left knee and still cannot get the fob to work


I have changed the battery before and had no issues. This problem arose immediately after changing the battery. Any ideas??
Thanks

 

Thanks for the input guys.

I messed around with things again.

Unhooked the negative battery terminal for a minute and hooked it back up. All good now. Fob works fine. Must be something with it resetting when the battery is reconnected.

Just a side note: my fob 2032 battery positive side faces down. Flipped it the other way and red light quit blinking. So - up.

Thanks for the help. Hope this helps someone else.

 

Soooo. I was wrong. FOB is not working. Still having the same issues as described in my first post. Called the dealer and they said when I took the FOB battery out I may have messed up the programming and I could buy a NEW fob and have it programmed for a couple hundred dollars. I've done research and tried everything I could think of over the past 2 weeks. Anybody else have any alternatives to the dealer or any good ideas??

I do not care that I must use a manual key/start car with key in ignition, but I would like to be able to purchase a backup key for cheaper.

Thanks

 

It was late at night. I was in a rush. I thought it worked (only tested it once). Possible i was wrong and it didn’t work

 

UPDATE: After some more research I looked at a picture of the circuit board/radio frequency controller inside the key fob. Then I looked at my fob and noticed that the Panic Button (White button that is on the circuit board is missing). I must have broke it off at some point when changing my battery. I assume this is the reason why I cannot unlock/lock my doors with the fob and not start my car without the key in the ignition? Red light still flashes when unlock/lock are pressed.

Anybody have any ideas/solution to this?