2016 LC200 and towed my 4600 pound travel trailer with it a few weeks ago. Very nice. I don't want to lump multiple topics in this thread but I now have an ODB diagnostic scanner and the Car Scanner app for my ios device. The reason I purchased these is because I read that when towing one needs to keep an eye on the transmission temp and the gear the transmission is hunting for on hilly terrain. So I want to monitor the transmission temp and current gear (assuming that seeing the gear changing indicates some transmission hunting) while towing. Aside from the fact that at the moment I can't seem to monitor these things (just need more time to figure it out), what temperature range and high point should cause me to be concerned about the transmission temp?