One of the easiest options to monitor transmission temperatures and to verify ATF pan temperature for the fluid level check procedure is to download the app “OBDFusion” on your phone. Once downloaded you may purchase the enhanced diagnostics which will include ATF pan and torque converter temperature gauges and much more by selecting Settings>Purchase Extras>(select your vehicle). To start, you will need a Bluetooth OBDII adapter. There are many Bluetooth OBDII brands but I would recommend the one from Veepeak as a lot of of customers have used it without issue.