Hi
2000, td5 auto 150k
The other day whilst driving the hill descent light came on followed by the TC and ABS lights, then the vehicle slowed down. Now it takes a while to change into first or reverse and the gearbox doesn't change up until higher rpm. As the gearbox gone into limp mode or is the 3 amigos the cause or coincidence as it happened at the same time?

 

Are the "M" and "S" lights coming on too?
Have your battery and alternator tested, the 3 Amigos should not cause this, but low battery voltage will.