There are various means of locking the torque converter clutch. These variations are function on the hydraulic circuit managing the clutch actuation. The TCM controls the TCC solenoid. If your solenoid were being to stay closed, the TCC would keep engaged even though the car slows to your stop. This https://torque-converter-clutch55296.bligblogging.com/34875736/5-simple-statements-about-torque-converter-clutch-explained