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Kisby

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Discussion starter · #1 ·
Taking delivery mid October in Atlantic Canada and am happy with the deal I got. Trying to figure out if the dealer offered undercoating is worth it. Also considering an extended warranty...yes I know it's an insurance policy really....
Any advice would be helpful.

Thanks
 
Agree. Toyota Canada has specifically said not to do under coating.
I’m in Montreal, I guess it’s not a good idea to get my month old prime rust proofed? We get very brutal winters here, but worried about Toyota voiding my warranty if something happens to the high voltage cable even if it’s not related to the rust proofing.
 
I’m in Montreal, I guess it’s not a good idea to get my month old prime rust proofed? We get very brutal winters here, but worried about Toyota voiding my warranty if something happens to the high voltage cable even if it’s not related to the rust proofing.
I use oil based spray that you have to re-apply every year like fluid film or krown. Never the black tar / rubber thing.
 
Discussion starter · #6 ·
I think that someone else posted their response from Toyota but here's what I got:

"""
Thank you for your recent correspondence and congratulations on your new 2024 Toyota RAV4 Prime.

We would like to take this opportunity to advise that some of our franchised Toyota dealerships may offer rust protection because the consumer demand for this product is high. Although this aftermarket product may be beneficial, Toyota Canada Inc. does not endorse the use, as we do not supply this product or oversee its manufacture or application. Please note that aftermarket rust protection products applied are entirely at your discretion.

With that in mind should any alteration or modification cause damage to any factory component of the vehicle or have an adverse effect on the vehicle performance or durability, Toyota Canada will assume no responsibility for the repairs required or any associated costs.

We would like to explain that each Toyota vehicle goes through an extensive rust inhibitor process. The body is fully dipped in a phosphate bath to make sure that even the most inaccessible areas resist rust. Next, a special wax sealer is applied to the corners and crevices of the hood, doors and trunk lid to help protect rust-prone areas. Finally, anti-chip paint is applied to the front edge of the hood, lower door panels and rocker panels to help protect these areas from stone chips and other minor road debris. The doors are also protected by lower door moldings.

Additionally, application of aftermarket rustproofing such as an undercoating product on hybrid models could affect the high voltage leads. As such, the application of the product could camouflage the orange high voltage leads resulting in emergency, dealership or independent facilities personnel being electrocuted or shocked if they unknowingly touch the high voltage lead.

Thank you for taking the time to contact us and allowing us the opportunity to comment.
Sincerely,

Haley Dupuis
Customer Assistance Centre
Toyota Canada Inc.
"""
 
I have used Fluid Film on my Tundra for a number of years and it seems to work well.

One problem with undercoating applied after the fact that some are not aware of can be a BIG problem. At some point in time, undercoating WILL age and FAIL. When that happens water, road salt etc gets trapped between the undercoating and the metal surface it is supposed to protect. When that happens the metal starts rusting at a faster rate. The bonus problem is that with some undercoatings, you CANNOT see the rust happening as it is covered by the undercoating. That gives the rust a BIG headstart.

I have seen this happen on a number of vehicles including at least one I own. This is why I use Fluid Film each fall.
 
Taking delivery mid October in Atlantic Canada and am happy with the deal I got. Trying to figure out if the dealer offered undercoating is worth it. Also considering an extended warranty...yes I know it's an insurance policy really....
Any advice would be helpful.

Thanks
Also, what l don't follow: the rav4P is almost completely covered underneath with plastic panels. Are all of these panels removed and then the rustproofing is applied??
 
Many previous threads full of opinions regarding undercoating. According to @Chazz8 (referencing the owners manual) undercoating must not be applied to the RMG. Here are a couple:

 
Many previous threads full of opinions regarding undercoating. According to @Chazz8 (referencing the owners manual) undercoating must not be applied to the RMG. Here are a couple:

RMG ?
 
Toyota calls it MGR -- "motor generator rear" as compared to MG1 and MG2 which are in the eCVT up front.

Also, what l don't follow: the rav4P is almost completely covered underneath with plastic panels. Are all of these panels removed and then the rustproofing is applied??
Yes.

I think that someone else posted their response from Toyota but here's what I got:
That guidance is formalized in the Tech Tip document TIP2385 which can be found online.
 
Taking delivery mid October in Atlantic Canada and am happy with the deal I got. Trying to figure out if the dealer offered undercoating is worth it. Also considering an extended warranty...yes I know it's an insurance policy really....
Any advice would be helpful.

Thanks
I'd be pass on the undercoating. I'm in favor of Toyota's extended warranty - I bought the 10-y Premium for my 2024 Rav4P. With a machine this complex, I believe it probable that Murphy's Law will eventually manifest itself within that time period. Had a 7-y extended warranty on a Ridgeline and saved $7500 in the 4th year on a new transmission, so I have some history to go by. Besides, 10 years of peace of mind is worth the warranty.
 
Woolwax every fall. And washing the underside well, often. An undercarriage wash at the automatic car wash isn't sufficient. I'm on my hands and knees spraying everything until the water runs clear. I stick the sprayer wherever it will fit. I have zero rust on my vehicles.
 
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