put your seatbelt on before you start it? Thats what I do... in a more serious sense I believe there is a way to disable it as I've heard of people getting rid of the annoying buzzer on older XJs. My friend is borrowing my haynes repair manual because his '89 jeep is having some electrical issues, so I can't look it up but maybe you could do a google search and find the wiring harness for it.
on my 87 there was a little black box right by the steering column with one plug going into it. I just unplugged it and no more annoying buzz.. to make sure you unplugging the right thing just make it go off and listen to where it is coming from
i like to make it a race to see if i can get my belt on before the beeps stop. works on my little brother to get him to wear his seatbelt too lol
2014 Jeep Wrangler Sport S
3.6L V6 - Manual
2001 Jeep Cherokee Sport
4.6L Golen Engine Stroker
6.5" TnT Customs Longarm Kitl Ford HP D60 l 6.5" Rock Krawler Coils l TnT Customs HD Trac Barl Omix Ada HD SYE l 1" UBEsl CV Driveshaft l39.5" IROKsl 17x9" Pro Comp 98sl High Clearance Shock Mounts [COLOR="red"] l Hidden Hitch l AJs Custom Front Bumper l SONY Xplod stereo l Alpine Speakers l TnT Frame StiffenerZ l 22" RE SS Brake Lines l 1.5" TnT Customs Boomerang Shackles l Sterling 10.25 *FULL WIDTHS* l JKS Mini Skids and Sway Bar Brackets l 7/8" Heim Joint High Steer