I have a 99 Durango and when I got it, the doors would lock when I hit 15 mph and unlock when I stopped and turned off the key. I had to replace the PCM and now, after reprogramming according to the manual, they lock like they should but don't all unlock when I stop. There is nothing in the manual to cover this. I expect that there is some sort of undocumented call on this. Any help would be appreciated.

 

I have an 04. Mine lock at 15mph and don't unlock until I open the driver door.

 

Has to be programmed by the dealer. The only way I know of to set auto unlock is with DRBIII.

 

Along the same lines, my 98 Rango doesn't do either of these. Is it possible that my PCM just isn't programmed right? And on a kinda different note, is there any way to make the horn hong/beep/whatever when you lock the doors with the keyless entry thingy? (like what aftermarket alarms do)

 

Yes your durango can be programmed to chirp the horn and lock the doors at 15mph and auto unlock. These are all customer preferences in the CTM. The dealer will be more than happy to take your money to set it up--keep it a secret, this proces only takes about 2-3 minutes, be real nice and maybe they will do it at no charge especially if you have them do something else like a minor service or something.