Transmission will not shift?

First make sure the fluid is full. If so, I have seen the pressure control valve cause the transmission not to shift. We should run the codes first though; you can get a CAN scanner (Controller Area Network) from Amazon for about $36.00.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is a scanner link:

https://amzn.to/3eCqWWw

This scanner does the entire car, which is easy, just in case I have included the replacement instructions on how to replace the pressure control solenoid. Check out the images (below). Please let us know what happens.