Gen3 Prius battery filter maintenance scam

The cabin filter is behind the glovebox and for the incoming fresh air

The battery fan filter is in the grille on the rear seat

Just check it and cleanif necessary. Not sure I would all it a filter, but a grille.

I think you can buy a filter that attaches behind it on amazon

EDo you carry shedding Animals? They should have checked and or cleaned the cooling fan when you got the message, do you have the paperwork?

 

I think Toyota came out with an add on filter at some point, after realizing the grille wasn’t always effective.
Otherwise they would end up replacing more batteries under warranty

 

@Andres V I would clean the hybrid battery fan. There's a video by @NutzAboutBolts on doing this, here:

Nutz About Bolts Prius Maintenance Videos | PriusChat
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I wouldn't pull off the rear seat cushion though. There's a single 12 mm (socket size) bolt you need to access, behind the seat cushion: you can just push apart the seat cushion and back and reach through with a ratchet wrench extension. Be careful not to drop the bolt though.

You can clean the fan without complete removal, and run some sort of duster boa through all the ductwork.

The hatch floor fasteners are very stubborn; when doing ours the first time I left most of them off when reinstalling.

 

Cleaning it yourself takes about an hour.

 

That’s ridiculous

 

That's the opening. The dust accumulations tend to be in the fan itself, as well as some in the duct work.

If the dealership did clean everything properly you won't really have anything to clean so soon after, but it doesn't hurt to have a look. If you've got a reasonable assortment of tools and know how, it's an hour or two. Watch the video.

 

Some people add a bit of foam to the grille, but you have to be careful not to restrict airflow

 

I put window screen material behind it, maybe 1/16" square openings. I had denser stuff before, but started getting nervous.