Low ATF from factory in 2016 TRD OR

[CalifExplorer]

Sept 2019 I purchased a seemingly well cared-for 2016 TRD OR 4WD (long bed, if that matters) that had regular maintenance and benefited from extended warranty. One of the first things I did was have a local dealer update the transmission (via TSB 77-16.) Despite all that attention, no one ever looked at the fluid levels until I brought it in for 60k service, and sure enough, 1.5 quart low. No evidence of leak. Surprisingly, I had to persuade the SA that I wanted the transmission service done, as his opinion was they just don't merit attention. Can I assume that all is well with that AT now, or are there repercussions for four years of use while 10-15% low in ATF?

 

[Tyler]

Looks like this is a duplicate thread to your other one. I'll close this one.