Hello Camry fans

This is my 1st post in the forum and i wish i find the answer to my problem.

I have a 2011 camry. I noticed the car don't **** to 5th gear not long ago. I took the car to a shop to test the computer but they didn't find anything wrong ;/.. I'm willing to hear your thoughts about this. Could it be tranny clutches ?
or tranny sensor ? Computer issue? How would you troubleshoot this

Thanks in advance

 

Is the car still under warranty?

5 or 6 speed trans? Does the car have an overdrive switch and if so is it off?

What engine type 4 cylinder or V6?

 

The car has a 5 speeds transmission and no overdrive switch.

Engine is 4 cyls

 

Is the car still under warranty?

Check owners manual as may be a 6 spd trans.

 

Is there a way to diagnose car computer or transmission ?

No warranty