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 Post subject: Replace horn with REAL horn
PostPosted: Tue Nov 20, 2012 3:10 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3829
Location: San Diego
I changed the horns out for a more robust version that Feature steel housing and plastic projector, can be mounted singly or as duals (I highly recommend a high and a low dual install) at 130 dB:

FIAMM 72112 Low Note (420hz) Freeway Blaster Horn

http://www.fiamm.com/Horns-F-Freeway-Bl ... od-956-561

FIAMM 72102 High Note (500hz) Freeway Blaster Horn

http://www.fiamm.com/Horns-E-Freeway-Bl ... od-957-561

Many people are happy with the compact "El Grande" model (frequency
405-485):

http://www.fiamm.com/Horns-El-Grande-Tw ... od-997-561


It's super easy to do. Just remove the plastic cover over the radiator (pop the center plastic pins in to loosen the fasteners). Page 356 in the owner's manual tells you how to remove the motor compartment cover. Then remove the two 12mm hex head bolts that hold the radiator in.

Remove the top radiator brackets (they just slide up, off the radiator) and push the radiator assembly towards the windshield. You'll see the two horns on the driver's side, mounted high, in front of the radiator. You'll need a 12mm hex head wrench to remove the hangars. If you want to "go for it", just remove the 10mm hex head nuts from the center of the horn and reuse the hangars.

Don't drop any bolts or nuts because you will have to remove the lower motor cover from the bottom of the car to retrieve them. It's not hard, but you have to crawl under the car with a 10mm socket and short extension, and a flat screw driver.

Pictured is the stock Low tone horn (420 hz) with the replacement Fiamm horn. The high tone horn looks the same (500 hz), but is not pictured:

Image


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Tue Nov 20, 2012 11:59 pm 
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Joined: Fri Oct 12, 2012 9:51 pm
Posts: 3
Did you hook up the relay or just replace the horns? This is a great idea. The OEM horns sounds like the one on a kid's bike.


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Wed Nov 21, 2012 9:50 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3829
Location: San Diego
Atomic Ajax wrote:
Did you hook up the relay or just replace the horns? This is a great idea. The OEM horns sounds like the one on a kid's bike.


The ten amp fuse / relay on the Rav4 is plenty. It's plug-n-play.

Putting on a Stebel air horn will require a relay (included with purchase).


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Sun Mar 24, 2013 12:02 am 
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Joined: Mon Dec 03, 2012 1:09 am
Posts: 165
Anyone have a video of how to do this? I'm not confident in my ability to do anything inside a car! (I didn't even own one until I was 29 since I could walk everywhere at the time.) I bought the Fiamm El Grande horn to replace the Rav4 EV's OEM children's horn.


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Sun Mar 24, 2013 2:12 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3829
Location: San Diego
Blastphemy wrote:
Anyone have a video of how to do this? I'm not confident in my ability to do anything inside a car! (I didn't even own one until I was 29 since I could walk everywhere at the time.) I bought the Fiamm El Grande horn to replace the Rav4 EV's OEM children's horn.


Sorry, no video. It's really as simple as removing the black plastic cover over the the radiator. The horns are in front of the radiator on the driver's side. Unplug one wire and one bolt per horn.

It's so simple that I'll venture to say that it's virtually impossible to screw up!!!

Page 356 in the owner's manual tells you how to remove the motor compartment cover.


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Sun Apr 21, 2013 12:04 am 
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Joined: Mon Dec 03, 2012 1:09 am
Posts: 165
I bought the Fiamm El Grande Twin (P/N: 74100) to replace the Rav4EV OEM kid's horn. Not wanting to take any chances, I brought it with me to the dealership (my scheduled 5,000-mile free service) for the technician to install for me ($110/hr labor). However, the service department refused to install, saying (1) the dealership policy is to not install aftermarket parts and (2) installing it would void the warranty.

So I took it to an auto shop I used previously after an accident, and the mechanic quoted me $200 to replace the horn. But he also said that installing the horn would void the warranty, and that he couldn't be sure - this being an electric car - that the voltage (or whatever measurement) wouldn't fry the new horn or provide adequate power. He was also concerned about getting fried by touching the wrong thing.

I obviously don't want to void the warranty, and since I had a "Check EV System" warning appear last week (that didn't register a code or leave any trace of a problem that Toyota could find), I'm wary about changing any electronic component.

Thoughts, anyone?


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Sun Apr 21, 2013 4:29 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3829
Location: San Diego
Blastphemy wrote:
Thoughts, anyone?


That is a WHOLE lot of uninformed BS.

I will do it for you in about 15 minutes for free. Actually, we can have a "horn clinic" at our next meeting.

For the "warranty" issues, please study the link below. Obviously, the HORN part of the warranty would not apply, and if the horn were to BLOW UP the car and kill innocent women and children at a church, sure, you bought all that. The problem is that it isn't going to do any of those things:

http://en.wikipedia.org/wiki/Magnuson%E ... rranty_Act


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Sun Apr 21, 2013 11:56 pm 
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Joined: Mon Mar 04, 2013 10:12 pm
Posts: 73
Location: Denver
All that, plus the 12V accessories on an EV still run on, yep, 12V! Imagine that.


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Mon Apr 22, 2013 1:58 am 
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Joined: Mon Dec 03, 2012 1:09 am
Posts: 165
TonyWilliams wrote:
For the "warranty" issues, please study the link below. Obviously, the HORN part of the warranty would not apply, and if the horn were to BLOW UP the car and kill innocent women and children at a church, sure, you bought all that. The problem is that it isn't going to do any of those things:

http://en.wikipedia.org/wiki/Magnuson%E ... rranty_Act

FYI, 15 U.S.C. § 2302(c) states:

Prohibition on conditions for written or implied warranty; waiver by CommissionNo warrantor of a consumer product may condition his written or implied warranty of such product on the consumer’s using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade, or corporate name; except that the prohibition of this subsection may be waived by the Commission if
(1) the warrantor satisfies the Commission that the warranted product will function properly only if the article or service so identified is used in connection with the warranted product, and
(2) the Commission finds that such a waiver is in the public interest.The Commission shall identify in the Federal Register, and permit public comment on, all applications for waiver of the prohibition of this subsection, and shall publish in the Federal Register its disposition of any such application, including the reasons therefor.


However, that's not the only thing one must consult; there's also 16 CFR Part 700 - the FTC's official interpretations of the Magnuson-Moss Warranty Act, not to mention potential volumes of existing case law.

While replacing the horn may seem innocuous, it involves taking apart a portion of the front of the vehicle, which could void certain parts of the warranty. Also, since the entire car is electric, Toyota might actually be able to support a denial under the argument that it only takes one change to the electrical system to void the warranty on the entire electrical system.

It's like the classic case of a car owner never changing the oil - if one doesn't follow the manufacturer's instructions, failure to change the oil will void the warranty on the entire transmission and engine. It also applies to someone who puts diesel in a gas engine and thereby destroys the engine - the warranty will not cover that, nor any future problems with the engine/transmission.


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 Post subject: Re: Replace horn with REAL horn
PostPosted: Mon Apr 22, 2013 3:35 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3829
Location: San Diego
Blastphemy wrote:
[quote="

While replacing the horn may seem innocuous, it involves taking apart a portion of the front of the vehicle, which could void certain parts of the warranty. Also, since the entire car is electric, Toyota might actually be able to support a denial under the argument that it only takes one change to the electrical system to void the warranty on the entire electrical system.



Ya, ok. I think this is a stretch beyond stretches, but you seem convinced. Removing a plastic cover "voids the warranty" is just crazy.

Good luck.


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