I just purchased a new ES350. First thing I noticed was the seatbelt chime. Unlike the 2005 ES330, this CANNOT be turned off by my dealer as it is a law in Mass that seatbelts have to be worn. Thus, I would like a workaround as well. Any help is appreciated. I have the same situation someone mentioned before - I will take off my belt for short periods of time and find the noise incredibly annoying.
Thanks.