Toyota Repair Problems? Ask a Mechanic for Answers ASAP
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Hello! How are you doing today?
hey im fine how are you?
I'm doing wonderful! Thank you. If I may ask, when you say it goes off, do you mean the alarm goes off out of the blue?
yes- its happened wednesday and today 2 times back to back each day at random times.
key was in kitchen first time, in purse second time and no one was messing with the key
OK I See. Now from my experience we have seen that the hood latch button would malfunction and cause the alarm to go off randomly
Now if I may ask, was the pedal recall the only recall done? because the vehicle might have 2 other recalls
it was the pedal recall and some floor mat recall they did both that day too
OK There's a possibility that it's a coincidence that these issues started a short time after the services because the hood was opened because here's how the switch causes the alarm to go off out of the blue on it's on.
The hood switch is an input to the alarm computer, If a thief were to open the hood the alarm would go off to prevent theft.
ok is that easy for me to attempt?
now this switch would malfunction and cause the alarm to go off at random intervals and cause the issue.
It is somewhat easy however there are 2 screws that are notorious to rust in the way to the hood latch and that can be a challenge to remove. I have removed a lot of them and can assist you with it.
would placing the key in the ignition and keeping the car unlocked in my garage prevent the alarm from going off? as I am trying tokeep it from waking my neighbors
If you leave the doors unlocked without locking them this will keep the alarm deactivated.
oh so i cant just open and shut the hood i have to remove screws
When was the last time your auxiliary battery which is the 12v battery checked?
ok so if i dont even have the key in the car but the car is unlocked it should deactivate the alarm while i am home
Now here's another thing that would cause the alarm to go off randomly
I have also seen that if the auxiliary battery is weak and it drops in voltage over night it will cause the alarm to go off randomly as well.
hmm thats the cheapest battery right? its been replaced at least twice. The bigger almost 4k battery was replaced about 1 year ago--- at 136 k, now we have 170+ K ( drive car ALOT)
OK The small cheapest one is the one I am talking about.
these batteries are very weak and they tend to fail often, if you are going to the dealership tomorrow have them test that battery along with the hood switch.
if the small battery fails the test replace it as well.
ok so you dont think its a rekeying issue then.
the problem is i cant get the car there til next friday
I highly doubt it's a rekeying issue at all.
Keeping the doors unlocked should keep the alarm deactivated and will prevent the alarm from going off
theres another toyota dealer near my work but not the one who did the rekeying etc. But you are saying this is another service seperate I would have to pay for right?
Since the other dealership just did work on the vehicle I would have the same dealership check the vehicle, typically if it's something simple and they were the last ones who worked on the vehicle then they will give a good discount or if it's something that they can fix then they will do so for free.
However if the car goes to another dealership then yes you will have to pay.
I would call the dealership that did the work and inform them of the situation and tell them that you will drop off the car on friday
I would keep the vehicle with them for at least a day so they can see the issue and take their time to inspect the vehicle.
ok that sounds good. is this auxillary battery the one that can be tested at auto zone/ advance auto parts? if so i can do that tomorrow during work hours
i drive 66 miles each day
Yes that is the one, it's located in the passenger side of the trunk underneath the storage try.
You can have auto zone or a parts store test it
however if it fails I would purchase an original one because they do use a special kind of battery not a normal one
if you must purchase a non original battery then make sure it's specifically designed for a prius
ok its not in the front of the car huh? i thought the big battery was in the back. they both are in the back?
They are both in the back. The high voltage battery is hidden underneath the back seat. the small auxiliary battery is in the passenger side of the trunk.
Did you have any other questions for me today?
thank you that was a lot of info
You're welcome! i'm glad I could help
A positive rating for my input would be greatly appreciated.
it was well worth it just for some peace in my head and so i can stop searching the internet tonight!!
thank you for using justanswer.com
I'm glad I could help :-) Let me know if you have any questions in the future.
ok i will do that. didnt know i could do such a thing here lol thanks
You're welcome :-)
ok i sure will have a great night!
That's wonderful! Have a good night.