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Ted Ritter
Ted Ritter, Toyota Master Tech
Category: Toyota
Satisfied Customers: 4184
Experience:  Toyota Master Tech, ASE Certified
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I changed the battery and now the alarm is going off and it

Customer Question

I changed the battery and now the alarm is going off and it wont start
JA: Have you changed a battery before?
Customer: no
JA: What is the model/year of your Toyota?
Customer: 2001 tundra v8
JA: Are you fixing your Tundra yourself? What have you tried so far?
Customer: I am fixing it myself. I have put a new battery in
JA: Anything else you want the mechanic to know before I connect you?
Customer: no thank you
Submitted: 1 month ago.
Category: Toyota
Expert:  Ted Ritter replied 1 month ago.

Hello, thanks for posting

This happens on some aftermarket alarm systems when the battery is disconnecteded, not knowing which system you may have try this first and let me know if it worked for you:

Remove the key from the ignition

disconnect the negative battery cable

insert the key and turn to ON ,leave door open

Reconnect the battery

Customer: replied 1 month ago.
Okay I'll go do that right now
Customer: replied 1 month ago.
okay it turned on. should it be fine now?
Expert:  Ted Ritter replied 1 month ago.

Yes, the alarm re set and it will be ok until the next time the battery is disconnected but now you know how to fix it.

Please take a moment to rate my answer, thanks.

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