Funky Smart Key

Disclaimer: I have a 2008 Prius and over the last year, I've slowly had less and less function with the fobs. I changed the batteries in the fobs and did the "ALARM" (orange alarm button) and the lock button to make sure that ALL door are set to open when the handle is touched. I HAVE also searched this forum and can't find exactly what's going on with my Prius that others have experience (dead fob batteries, broken fobs, etc).

Right now, the fob will unlock and lock the front doors, ONLY. The fob cannot unlock the back doors (I'm down to manually making sure they doors are locked/unlocked). This means that if the alarm is set (hitting the lock button twice and hearing the horn honk twice) and the back doors are UNLOCKED, the doors are susceptible to being opened upon after the alarm is set if they are left unlocked (very scary out in public if you're not careful).

The driver side handle will unlock the driver side door when the handle is touched. The passenger side will unlock BOTH driver side and passenger side doors when the handle is touched. The exterior lock button on the handle on both sides does not lock the back doors. Also, the lock/unlock buttons (on the interior, both sides) doesn't lock/unlock the back doors.

The hatch locks/unlocks with the fob just fine. The touch sense on the hatch also works fine.

I'm wondering if this might be a door/electrical issue as opposed to a sensor issue (the car's interior lights turn on when I'm close to the car). I'm hoping someone might be able to point me to a solution written to this thread, posting a solution thread that I missed, or tell me to go to the dealership (which is my last resort $$$).

I appreciate all thoughts.

-Eric

PS: The alarm random goes off, even in the middle of night. We've received threats against our physical well being because of the alarm.

 

Replaced 2 years ago. Should I have it checked already?

 

What do you mean door lock programming? Default? Are you referring to holding down the buttons on the fob and waiting for the beeps from the interior and exterior?