Too late? Transmission Fluid Change 170k miles, New Prius Owner

If you check the Toyota USA Warranty and Maintenance Booklet, I believe towing is one criteria it mentions, where Toyota concedes a transaxle fluid change should be done regularly.

There’s a link in my signature on this maintenance. 3rd Gen Prius and Prius v should be the same. On a phone turn it landscape to see signature.

 

Toyota does not recommend towing, however, Toyota does recommend transaxle fluid changes under severe service conditions.

Obviously, towing a trailer is severe service.

 

Is there any risk to changing the transaxle fluid at this mileage or even 111k miles?

Doesn’t make sense as to why, I’m reading a lot of things that say it could cause damage to the engine, even the YouTuber Scotty Kilmer recommends against changing it.

 

That's for a regular automatic transmission with bands and clutches.

The e-CVT in a Prius change of fluid can be done at any time. Clean fluid at any mileage for a Prius is better than dirty fluid.

 

Where's his braying horse meme when I need it.