[QUOTE=propain;3429478

My other question is when does a 5th Gen need to get it's tranny fluid replaced via maintenance schedule? 30k miles?[/QUOTE]

the transmission fluid change is 120K miles. Toyota tranny fluid and how it is working .. the fluid holds up much longer than a GM transmission. the toyota has a screen.. GM has a filter media like an oil filter. so I do my GM tranny fluid/filters every 40K miles.also I put a strong magnet on the tranny pan.

toyota tranny works very well with not much wear dust.. so that is why 120K miles.. some did the fluid changes at 180K miles ..

what you need to do since your a new toyota runner owner the drive shafts and axle yokes need to be greased every oil change 7-10K miles.. just a couple of pumps .. my runner has no drivetrain sounds 2016 ...
also check the rear diff oil for any dark/gray color ..if its not looking amber brown then change it.. I had to change it @3K miles..diff gear oil still looking good last nov 2019..it has a breakin issue on the diff gear teeth..
good help to inform the dealership location poor work!