Smoke detector like sound from dash

[bullydogs1]

OK experts...

No chimes, no steady tone (such as low air) from dash...no check engine light no warnings anywhere

In a traffic jam, started and then had to make a shorter stop, did this twice due to people cutting in front of me...for a split second, heard a sound from I think under dash that sounded like a smoke detector..not the usual chimes etc I normally hear or even the low air steady tone..It was like a smoke detector sound..even though smoke detector is way back of coach..Happened twice but for less than a second each time. Is there such a tone on my 2009 HR Endeavor and if so, if it is a stop engine warning, no light came on whatsoever. Any thoughts from anyone..engine running fine and smooth sailing on way home..just wonder what that sound was...

[Florida Panhandler]

bullydogs1,
I have not run across the alarm that you mention but I will recommend a Yahoo Group that may be of interest to you.

ramblin_pushers : For Holiday Rambler Diesel Pusher Owners

The Ramblin Pushers group is the site used by the Special Interest Chapter 419 of the HR RV Owners Club. You do not need to be a member of either the club or the chapter to register and get involved in the conversation. The membership is about 800 strong and is dedicated to the maintenance from the chassis up of HR diesel pushers. We have a week long Maintenance Session annually in Goshen IN each spring. You need not be a member of the club or chapter to attend that either.

Safe travels.
Dick and Karen
2005 HR Endeavor PRQ