Read way too many posts people asking how to turn off seatbelt alarm tone. Read way too many comments from people but my 2007 Honda Accord has an issue with the seatbelt alarm never, never shutting off. Riding down the road seatbelts all on and warning tone still sounds. What can be done? Replace what?

 

My guess the latch that it clicks into needs to be looked at. Did you try inserting the passenger side belt buckle in just to test?