So earlier today i took my cousin to buy a car for her, we ended up getting a 2000 explorer 4x4 4.o v6 with 99k on the clock. when we first started it up there was a beep noise (no warning lights and not the typical door ajar/lights on ding) the noise came from somewhere under the dash and beeped 5 times a pause and then 5 more beeps. it did this 4 times in a row and stopped. It did not do this again the entire test drive, but it did do it again when restarted. I didn't think much of it until my cousin and her sister called me half way home (about a half hour) and it was beeping again, the same pattern as before. Im stumped as to what this could be as there are no warning lights associated with the noise and everything functions properly. the only thing that i know to do is to start tearing things appart if i cant get any help. Thanks to anyone who can help with this anoying issue!

 

Never mind, did a google search and it is caused by a burnt out airbag light in the dash.