Having problems with your 2006 Toyota Sienna ?

Horn on my sienna goes off while replacing the battery

\015 I needed to replace the battery because it was completely dead. When I go to place the cables on the new battery, the horn goes off as if the alarm was going off. I tried hitting the unlock button with the keyless remote, but nothing happens and the horn continues to go off. I have to pull the cables off to stop the alarm.\015 Posted / edited by AnonymousUser on : 18-06-2018

Answers :

Hook up cables and lock all doors,first try unlocking drivers door with key. If that does not workstart over and then try unlocking trunk/hatch with key. This usually will work, I highly sugest you use original key if possible.
Repair Help & Product Troubleshooting for 2006 Toyota Sienna

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