Just a reminder to anyone reading this in the future: While the 2021 uses WS in the transaxles, the gen5 uses TE in both front and back. I'm still three or four years away from needing to do my transaxle fluids(I plan to do 5-7y/50k-70k), but I think I'm going to have a trusted shop do it instead of doing it myself. It's not that you or I can't do it yourself(we absolutely can), it's just that I like taking the car in every year or two just so it can be put up on a lift and given a thorough inspection by an actual professional. It lets you spot small problems before they become big ones, and helps you to plan future repairs so you can do it on your schedule and budget. I'll have the transaxle fluid be the excuse to take it in. I'll probably do coolants at 5y and transaxles at 7y*. Of course the real trick is to find the trusted shop that knows your type of car inside and out and knows what to look for. I'm lucky that Chicago is one of my favorite cities and it's not an absolutely insane drive(it's only mildly crazy ). That means I can use TCCN as long as I can schedule a few months in advance. *TCCN recommends WS replacement in eCVTs at anything from 6-9y and 60k-90k. He's currently recommending TE replacement at 6y/60k, but that's only because it's new and doesn't yet have the track record the WS transaxles do. When I schedule my coolant at 5y, I'll probably ask if he's seen enough TE transaxles at that point to keep to the 6/60 or if he's altered the recommendation because of experience.
I've done three transaxle fluid changes on our 2010. The first around 12 months, something like 15k kms, was by far the darkest. The second and third were done at longer intervals, yet were increasingly clean looking. Haven't really read through the attachment; the 5th Gen Repair Manual appears to have multiple instances of "transaxle fluid change". Also dead-links abound. There's another fluid change instruction for the AWD system? Haven't found as yet.
