twice this has happened to me , my 02 silverado v6 stick the chime starts sounding while I was driving.. both times about 15-20 minutes after starting up
first time I giggled the key and cut off the iginition accidently , well that cleared the chime from sounding
2nd time I pulled of the road and it stopped by itself....
NO warning lites were on , door was closed,
any thoughts??

 

turn signal left on to long ,bumped it when you got in ?

 

It'd sound waaaaaaaaay before 15 mins if it was the turn signal right? Maybe be a short somewhere.

 

Thanks guys I finally received my owners manual(it was missing from the truck) and read about the turn signal thing, something about 3/4 of a mile if not cancelled... I think the turn signal mechanism cam may be a little wompus and not releasing the stalk because now thinking back I had made a right turn with blinkers a minute before

 

Same thing happened to me with my 2000 Z71, scared the heck out of me thinking something major was wrong.
Turns out it was my blinker still going. I felt a lot better when I figured it out.

 

How do you not know your blinker is on dont anybody look at the gauges anymore on a reg. bases
tach and what not.
mine didnt do it i tryied it.
just to see if i got the chime but no chime here just keep blinking

 

Its supposed to, my 07 does it, it only takes 20 secs or less it seems. It scared me too the first time it did it, I didnt know what the heck was going on.

 

guess ill have to look into it

 

When it happened to me, I was pulling a large trailer and paying attention to where the trailer was, not my dash.
I do see many going for miles with blinkers on, I think it's called an eventual left, (or right).