Car 'Somtimes' beeps with key pulled out

Do you have SKS on yours? How many beeps do you hear when this happens?

Btw, traction control can be disabled but not permanently. Plus it's not recommended as it can result in the transaxle being damaged. Otherwise there is no way to modify traction control.

LG-AS695 ? 2

 

SKS is the smart key system, so you hear three beeps when getting in sometimes? If that's so, it sounds like you're not fully powering down. I would suspect the battery could have a hand in this if it's been drained several times.

Search for the battery test or how to get into maintenance mode to check the voltage of the 12 v battery and report the results back.
Traction control doesn't stop mine, it just cuts out regen while braking and I hit a pot hole or divet in the,road.

LG-AS695 ? 2

 

What voltages did you get from the test? If your battery has gotten down to 7 volts, I dare say it's not in the best shape. But I suppose a faulty fob slot switch could be causing your issues. Maybe someone else here has had that issue and could point you in the right direction.

LG-AS695 ? 2

 

If you have seen as low as 7 volts, that battery is no longer holding a charge, and is no longer useful. Try putting a charger on it at least. If it is the original battery, it is time to replace.

 

Are you sure it's not just one of the Prius Warning Beeps to prevent you from leaving the keys in the car.
Leaving Power Button ON in PARK and Driver exiting.
Turning Power OFF without putting in ‘PARK first.
Opening and Closing driver door without exiting.
Warning a passenger took the key out while driver was still in with car on.
Operating Door lock with key in still in car.
If you have evidence of an error code too, it could be a bad key sensor antenna.

 

My 2008 Prius started displaying the same symptom this past month, with the result a dead battery in the morning 2x's (always seems to happen at home for some reason). Doing it again tonight, so I'm putting a charger on it this time, now that I realize I can't ignore the beeping. Tonight I tried putting in the other remote, turning off the remote signal feature (whatever that's called), turning the car on and putting in drive than reverse again (which seemed clear the beeping a few times in the past week, but not tonight). It is not the beep that it gives you when you try to leave the car while it is still on, but the beep it would normally give you if you left the key fob in it's slot, and keeps beeping until the door is closed again, so I'm suspecting a faulty slot sensor/switch. (The key dash light also flashes once every ~2 sec's, which I guess can drain the battery overnight, especially if it's sending out a signal for the remote that often.)

 

I believe that the problem that both you and the OP have is that the 12V battery is way too weak and needs to be fully-charged overnight - or replaced if the battery does not hold a charge. Use a real battery charger designed for AGM batteries and a charging current of 4A - not a little wall-wart type of battery minder which is intended only for maintaining the charge in an already-charged battery. (If the charger is not designed for AGM batteries, it will not fully-charge the battery.)

Yes, you cannot ignore any warning that the car provides you - even if it may not be obvious exactly what the warning is about. The key dash light will always flash red when the car is IG-OFF. That is normal behavior.

If you start with a fully-charged 12V battery, I believe you will find that the other problems will disappear. Good luck.

 

I agree with previous posts. A beep after shutting the car off assuming the key is not in the slot and the lights are off indicates a low or bad battery.

Charge if possible or replace.

 

did this ever end up working. We bought new battery. Three months later issue started again.

 

The OP's (last seen here Jan 25, 2014, so don't hold your breathe waiting for a reply) battery was dropping to 7 V so was well passed the use-by date. A new battery did (surprise, surprise) as attested in the final post. The fact it was a new OEM battery is neither here nor there, any quality AGM in the correct form factor (S26B24R) will work.

Your issues are likely not 12 V battery related and if you want help with your particular issues then start a new thread giving the details of your car and what is happening.