I found this on the forum from another members post when I did mine.:smileup:
Buckle belt, turn key to on position without starting,wait until seat belt light goes off on dash, then unbuckle and re-buckle 3 times ending in the buckled position within 60 seconds. Then start your truck and you should hear a chime sound confirming it was done. You will still see the seatbelt light on the dash but the chime will be gone
finally got that pesky chime turned off. After the 3 seat belt cycles, dont start the engine. First turn the key to the off position and it will chime and kill the chime. Thanks all for the replies!!!! Have a goodun!!!!!