Buckle up.
In most places, it is illegal to disable this alarm. If you are having problems with it, a dealer should be able to fix it, possibly at no charge, since this is an essential component.
you don't . seat belts save lives .
taake the ballbering out of the sensor unit
The 3.5 liter V6 engine in a 2007 Lexus RX350 has a timing CHAIN
There are two wires under the seat responsible for the seat belt alarm. You can play with them to disable. If during the state inspection they will find out that you disconnect it again they will make you to connect it again you will not pass the inspection.
How to Reset the Tire Pressure Warning System on a 2007 Lexus RX350 Read more: How to Reset the Tire Pressure Warning System on a 2007 Lexus RX350 | eHow.com http://www.ehow.com/how_8490990_reset-system-2007-lexus-rx350.html#ixzz1pcCVn8cC
Sell the car. Can't defeat it. It drives me insane and I've asked everywhere.
http://www.bimmerfest.com/forums/showthread.php?t=169033&highlight=Seat+Belt
You cannot disable a vehicle speed sensor on any EFI vehicle without causing a host of problems. I'm not sure why anybody would want to.
Buckle your seatbelt. Now if the alarm is on even after buckling up, take it to the dealer as it is still under warranty. If you just want to be stupid and not wear your seatbelt, I will not help you.
Buy the CD from Lexus and insert it into your CD player