Manual Yaris transmission fluid check and change

[Kaotic Lazagna]

Originally Posted by bentjazz

Thanks, KL. Okay, don't laugh or shake your head. But where's the fill plug?

Originally Posted by komichal

Here is a nice tutorial: https://www.yarisworld.com/forums/showthread.php?t=8912
No need for a fancy filling tool for this job. A funnel with a piece of hose will do just fine (filling from top).
If you decide to change the oil then use only original Toyota. Multiple people (including me) had multiple issues with quality non-original oils (Mobil 1, Valvoline,...) despite their full conformity with the specs.

Great guide to follow. Only thing I'd add, which I mentioned already, is to replace the gaskets/washers with new ones. So if you do replace the trans fluid, order the gaskets in advance (they're way more expensive at a dealership).

I just use a cheap fluid transfer pump for my transmission and diff (for the FR-S) fluid/oil changes.

The Yaris seems to like Amsoil, but in the FR-S, it shifts smoother with the Toyota/Subaru lube.