horn beeps after shutoff.

been driving a prostar for over a year now. well, 3 actually, two 09's and an 08. and occasionally after I shut of the truck and get out the horn starts going off. 99% sure I'm always in neutral before I pop the brakes and step out (yes its an auto) and always at least turn the main lights off. Sometimes it starts right when I get out of the truck and sometimes it waits till I'm halfway across the parking lot. Not a huge issue except it really is annoying, my question is what is causing it? Something I'm unconsciously doing, or even yes, I have thought this, am I doing things to quickly, stop neutral pop brakes out of the truck in a couple seconds.

 

Could be a bad ground connection. I'd check that first, simple problem simple fix.

 

Make you select neutral, set your parking brake, then key off, if not the horn gets mad.

 

three different trucks. at least the two '09's did/do it. only had the '08 couple weeks b4 the trans went dont recall if it did that also in that time span.but my point being sounds more like some preprogrammed alarm/warning thing. just curious as to what that alarm/warning is so i can avoid doing it in the future.

 

pretty sure thats the way I do it..... would setting the brake before neutral effect it, I guess its possible I do do that without realizing it.

 

wow picky lil buckets arent they lol.

 

lol yeah least with this issue. Dont mind the truck though. Bit of a dog on hills but not bad.

 

Was thinking about this morning when I hit a dock. It can't be the order of operations, because every time I hit a dock, I always keep a little pressure on the dock while in reverse when I pop the brakes. And it surely doesn't 'get mad'(lol) every time I dock. so it's got to be something else.

 

horn beeps after shutoff. the truck likes you. does not want you to leave. it's scared to be left alone. read it a bedtime story.

 

LOL, Pretty sure I'd look like a fool soothing my truck reassuring it i'll be right back. However If I dont get a better idea i may try it.