Transmission not shifting

Hello all,

I'm having issues with my Tacoma's automatic transmission. It's a 2016 TRD Sport with the V6. The issues are very intermittent. Sometimes on the highway it will rev up real highway and not shift into the proper gear. If I pull over, put it in park, then start driving again it will work flawless. Or sometimes when I'm starting from stopping at a light or stop sign. It revs up but doesn't shift into gear. If I keep giving it gas it eventually will but obviously that's not ideal. So I ease off, go to park and back and it works fine.

It threw a code only once and my buddy's scanner said it was clogged sensor. But I was a fool and didn't write down the code and had him clear it. Hasn't come back since.

I'm not familiar with transmissions at all but I was thinking maybe a solenoid of sensor is going bad. Hopefully a cheap easy fix. It's at 120,000 miles now. Any help would be appreciated, thanks!

 

Has the maintenance schedule been followed for trans services?

 

Any mods or rodent activity?

 

I bought it used a few years back. All I've done is routine oil, belt, brakes and tires. Is there something I need to get doen?

 

No mods that I know of. No rodents lol

 

Something?
https://www.tacomaworld.com/threads/3rd-gen-maintenance-maps-get-300k-miles.789809/

 

Thanks for that link! I'll keep that info handy l!