P0706 Chevrolet - aveo2011

Question

when I exceed 100 km / h, the HOLD signal speed automatic box flashes. I have done a scan I found a mistake (transmission Range Sensor Circuit Range switch performance). I did not understand this problem.

Answer 1

there is a service bulletin that the coolant was mixing with the transmission fluid. I think that might be your case too

if your are under warranty the dealer will fix it for free. If not the radiator will have to be replaced and the transmission fluid replaced.