This is my first tech post. I disabled the seat belt chime on my 2008, this may help others. I wear my seat belt all the time when on the road. However, when starting off up my driveway (.025 miles long) or in parking lots I start driving before I attach the seat belt. I have just always been this way and I can do it safely. Since I do this several times a day and the seat belt reminder was driving me crazy.
I knew the switch was in the receiver. I figured the seat belt latch would just ground the switch to complete the connection. Wrong. There is a microswitch and SRS sensor. So here is how I disabled it.
I removed the receiver arm so that you can see everything better. You may not have to remove the receiver arm. First there is the switch housing.
On the seat side of the arm is release tab, push it in and the switch slides out of the receiver. Reach down beside the seat (under it beside the console) and remove the wiring from the clip so that you have enough wire to work with.
You will see that this expensive switch has sensors for the SRS and a spring.
I pulled the spring out and cut the outer latch holder guides. I checked to ensure that this mod worked before I proceeded.
I pushed the switch closed and used heated electrical tape to secure the switch and then placed it down beside the seat. You wind up with a clean receiver arm when finished.
Maybe this will help some one. It may apply to other Toyota vehicles.