After you start the van a chime will sound. It will chime 5 times wait 5 seconds then repeat the same for a few minutes. No warning lights are on when this occurs.
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2005 Mercury Monterey Question: Unknown Chime.
Answer #1patrick mannion from Greg Solow's Engine Room, June 16, 2011, 06:18Master
It sounds like it may be the seat belt chime? Is there any instruction in your owner's manual? Check here http://repairpal.com/automobile-owners-manuals-online or try this link you may be able to down load a free copy of the owner's manual for your vehicle http://www.autousermanual.com/
Turn on your lights, take out the keys as if you are leaving the car, does the initial chime you hear sound like the "lights left on chime"?
Replyghstrdr1961, June 16, 2011, 13:06Rookie
Doesn't sound like the lights left on chime. It chimes 5 times waits 5 seconds and then repeats this process a total of 5 times. Today, after driving for 30 or 40 minutes, I stopped at a redlight and when I started again the same chime sequence started again. Everyone in the vehicle was wearing seatbelts.