Originally Posted by cwilliams21
Figured it out. When you connect the battery back up and the horn starts honking you have to press the unlock button on the keyless remote.
Does the same concept apply if you dont have a keyless entry? My battery was dying so I put in a new battery and with the new battery, I get the horn honking. I tried unlocking/locking the doors, but the horn just kept going. It sounded off for about 10 honks and then stopped- but it starts every time I open the driver or passenger door.
I was in a massive rush so there is a chance I didn't connect the new battery properly, but I'll have to double check that later today.
2002 Tacoma Extended Cab SR5 V6 4x4 (in case the year/model makes a difference)