2014 Tundra tran slip when cold after filter and fluid change

Just like most, looking for similar experiences with Tundras. Got to 120K miles on my 2014 and tried doing some preventive maintenance. Did the water pump brakes and had Amoco do the Transmission filter and new fluid. This has created slipping in the A.M. Took it back and they said fluid levels were good. Still slipped, worse when cold but does fine after about a block. I took them the funky procedure and asked if they followed all of it and they said yes. Back to Toyota to see if the did it right.

 

First, Welcome from LA (Lower Alabama)! I've not heard good things about Aamco transmission centers. Good luck finding a good tranny shop to help get things straightened out!

 

Yep. Not a bad ideal to try someone else before the stealer dealer