I haven't seen this any where on the forum, but found out how to disable the seatbelt chime while driving. The seat belt light on the EVIC is still on though. If any one is interested this is what to do...... 1. sitting in the truck buckle the seat belt. 2. turn on ignition without starting the truck. 3. wait for the seatbelt light to go off on the EVIC 4. with in 10 seconds, unbuckle, rebuckle 3 times. leaving the seat belt buckled the third time. 5. Turn off ignition. you should hear a chime confiring the change. Take a quick drive to see if it worked.