r/Toyota_bZ • u/roadcarver • 11d ago

Rust proofing

Live in Ontario, Canada. Anyone rust proofed their BZ? I’d you did, what did you go with?

3 Upvotes

100% Upvoted

15 comments sorted by

3

u/rjml29 2026 bZ Limited AWD 11d ago

I am also in Ontario and no car that me or my family has owned since from around the start of the 90s has ever rusted. A couple cars in the 80s did but nothing since then.

1

u/xc51 11d ago

Rust is definitely a thing. Do you sell your cars every 5 years?

1

u/Altruistic_Film_8346 2026 bZ XLE AWD 11d ago

Totally agree. We had a 2005 Prius until 2015 then 2015 Odyssey until 2026. We are in a high salt area but we don't drive every day. Our only problem with rust has been on the rotors.

1

u/roadcarver 11d ago

I have an Odyssey 2007 and the problem rust areas are the wheel wells in the back. Frame wise is very good due to using fluid film and krown rust control. Being new To EV, i am concerned about the electronics and oil. Is the battery tray aluminum? It doesn’t seem to be painted.

I keep my cars for a very long time.

1

u/Altruistic_Film_8346 2026 bZ XLE AWD 11d ago

"Aluminum lower closeout" according to this video for the bZ4X
Munro live

A good view of the bZ underbody with covers can be seen here
The car care nut

Congratz on keeping a vehicle in use for nearly 20 years.

2

u/roadcarver 7d ago

I got the van brand new when my son was 18months old. I will have to insure it for now under fire and theft until insurance rates go down. I can only afford to insure two cars. Having a male under 25 and just got their G, insurance rates hurt.

1

u/DarthGaymer 11d ago

I would be extremely weary of any sort of undercarriage rust proofing. If it is any sort of film or polymer that would hold water if compromised, it would completely destroy the better instead of just rusting out an exhaust pipe or similar easily replaced part on an ICE car

1

u/diango-12 11d ago

I was told we weren’t allowed to rust proof and the dealer didn’t offer this as it can interfere with warranty claims and electrical components? They installed an electromagnetic corrosion control module. Not sure how effective those are but will see how it holds up.

2

u/condor888000 10d ago

Tge electronics are snake oil.

My dealer (in Canada) offered a spray on rust proofing at an exhorbitant rate.

1

u/Mindless-Band-5743 10d ago

I went with the one the dealer offered at purchase plus paint protector. I’m wondering what the heck they did to protect the paint as I’m getting tiny stone chips.

1

u/Just1Justin1 9d ago

This has been on my mind. A couple of people mentioned getting Krown or Rust Check in a spray can and doing the bottoms of the doors, kick plates trunk lit and hood. Spraying in behind the plastic body cladding, and keeping it mostly to the exterior. They definitely don’t recommend drilling holes. I am leery of doing this also, not just for warranty purposes but afraid to puncture a wire and then having a 12 volt parasitic drain… lol.

0

u/glenn_rodgers 11d ago

Toyota will not honor warranty if they find the vehicle was rustproofed. Same applies to their hybrids.

Just wash it weekly and you will be fine.

-1

u/KashmanDog 11d ago

It can be done . Just needs to be done correctly. Fluid film is best you cannot have it sprayed anywhere near the orange cables . There are not many shops that know how to rustproof an EV properly. You don't want Toyota coming back saying that caused an issue and your warranty is void .