My car is Toyota Corolla 2011. CEL lights at 75 mph.
I pulled code p02757. There no other thing wrong. The car is running satisfactory, this check lamp is the only trouble.
A P2757 DTC is a torque converter clutch solenoid valve issue
The valve engages a torque converter at higher speeds to lock your transmission and engine at a 1:1 ratio. This engagement, obviously, only happens at higher speeds for fuel saving.