Hybrid battery cooling fan filter, where to buy & how often to change?

if it is foam, just wash it. no, they will not vacuum it out.

unless you carry shedding pets, it's no big deal. more important to keep the grille clear

 

of course, the dealer has them. sometimes cheaper online or you can look for aftermarket using the part number.
there are a nuber of low price dealers online. check camelback and olathe toyota just to mention a couple.

 

camelback toyota.
more than likely. it may not even be on the filter. you can also ask a dealer parts counter, while asking the price.

 

Traction battery fan filter | Page 2 | PriusChat

Dealership should have it. If you typically don’t have passengers and keep the back not that dirty, the filter wouldn’t be bad. If you have pets and passengers, check every 6 months-year. Pets that shed are biggest culprits for those clogs. I checked at year 2 and it was still extremely clean.

 

$300 to change a filter seems preposterous (my word of the day). Maybe it was for full clean out of the ductwork and fan itself too?

Not sure how effective the filter is, but a full cleaning, of everything, is warranted at least once, if only to see where you’re at. It might be just a little dusty, or virtually a hair ball, depending on situation. Shedding dogs for example. With a few tools it’s readily DIY’able.

 

I changed it late last year after owning the car for over three years, at the time, and it was barely dirty. Then again, I'm the only person in the car 99.9% of the time.