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<[email protected]> |
On Wed, 19 Aug 2020 05:26:15 -0700 (PDT), TheSeeker
<[email protected]> wrote:
>On Tuesday, August 18, 2020 at 7:47:39 PM UTC-5, VanguardLH wrote:
>
>Dear Sir,
>
>Somehow, our part of the conversation on TPMS got distorted.
>
>For me:
>I have two Subarus (2014 Forester, 2017 Legacy) both US models, both with TPMS.
>Neither vehicle tracks tire location: a single warning light comes on if any tire is low, it is up to the operator to find which one.
>Both vehicles will light the TPMS warning light if a tire is low.
>Both vehicles will light the TPMS warning light if a tire does not have a TPMS sensor (or a TPMS sensor battery is dead) I have tested this.
>
>I bought a set of 4 winter tires for them, after buying the vehicle.
>I bought programmable _TPMS_ sensors for the new winter tires, and _cloned_ the summer tires TPMS sensors.
I'm sorry but I see TPMS as overkill. What does it tells me that I
didn't already know? IE I had a low tire, 1 of 4! My guess still -
which 1? I sure raised a good 1 this time.
oldman
>
>I can now replace all four summer tires with winter tires and I do not have to do any re-programming of the vehicle, or sensors in the tires. If the tires are properly inflated, I have no TPMS warning light.
>
>I hope this explains how I have my vehicles/tires/TPMS set-up, and lets people know what options are possible.
>
>Sincerely,
>Duane
>
>> TheSeeker <> wrote:
>>
>> > Like I said: "None of my Subarus track TPMS and tire _position_, so I
>> > can rotate positions without causing problems."
>> >
>> > I have a 2014 Forester and a 2017 Legacy. I can swap the set of
>> > summer tires for winter ones and vice-versa (even putting tires in
>> > different positions on the car), without doing any programming at
>> > all.
>>
>> For you, yes, perhaps you don't have TPMS (or the batteries are dead, or
>> the dash light won't show when they are missing or dead), yet you also
>> mentioned the use of TPMS in your same post. I also don't have TPMS in
>> my old '02 Subaru Legacy. That's a side issue not relevant to
>> discussing TPMS, and doesn't obviate the TPMS discussion. I was staying
>> on-topic to the OP's thread, especially since the OP does have TPMS.
>>
>> The 2007 THREAD Act that required TPMS on new cars since 2008 was USA
>> legislation. Don't know the location where you bought your Subies. The
>> 2014 Forester, in the USA, did come with TPMS; else, no one would be
>> selling TPMS sensors for that year and model, yet such sensors are for
>> sale. That year and model fell under the TREAD Act.
>>
>> https://www.ateq-tpms.com/en-us/article/diagnostic-information-subaru-forester/
>>
>> Sure looks like the 2014 Forester had TPMS. Also, a manual I found at:
>>
>> https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjAnPyA_qXrAhWRPM0KHVKOCg8QFjAAegQIERAB&url=https%3A%2F%2Fcdn.dealereprocess.net%2Fcdn%2Fservicemanuals%2Fsubaru%2F2014-forester.pdf&usg=AOvVaw2yFQ1SakZeJ2LTzwsoy0eS
>>
>> mentions TPMS; however, it also says "U.S.-spec models". If you bought
>> somewhere other than in the USA then the 2007 TREAD Act does not apply
>> to your vehicles. It was USA legislation.
>>
>> If your wheels don't have TPMS sensors installed in them, how could
>> something that doesn't exist transmit data to the car? The sensor
>> reports tire pressure below some threshold (25%). They cannot report
>> they are missing, and I don't know the car will bitch if the sensors
>> don't transmit to the car, especially if their ID wasn't synchronized or
>> they are missing. I've read where dead sensors (battery is dead or
>> sensor is damaged due to corrosion) don't show up on the instrument/dash
>> panel, so the same would be true for missing sensors.
>>
>> You don't have a vehicle that falls under the USA's 2007 TREAD Act, so
>> TPMS is not required. Or, the batteries in the TPMS sensors are dead,
>> or they are missing, and the car won't tell you that and the indicator
>> stays dark. You can't tell if the car should have TPMS by looking for
>> the indicator cutout in the dash plate since the same plate gets used
>> regardless of which market into which the car eventually gets sold.
>>
>> From what I've read, the 2014 Forester was supposed or did come with
>> TPMS. If you bought it new in the USA, and you know, at least, one set
>> of tires you use don't have TPMS sensors in their wheels, well, the car
>> isn't going to bitch to tell you the sensors are missing or their
>> batteries are dead. I would've suspected the indicator light stays on
>> constantly with no data coming from the sensors. One 2015 Forester
>> owner says the light stays on all winter when he swaps his tires+wheels
>> winter set onto his car that don't have the sensors. That's one
>> year-model older than yours.
>>
>> It is illegal to disable TPMS in your car; however, it is not illegal
>> (again, only in the USA where the law applies) to not bother replacing
>> them when you get new wheels or swap in other wheels, nor are US
>> citizens mandated to replace them when the batteries die. They are
>> required in new vehicles manufactured since 2008 sold only in the USA.
>> Owners aren't legally required to maintain them. While illegal (in USA)
>> to disable TPMS, you could add a switch inline to the wiring that goes
>> to the indicator light (https://www.youtube.com/watch?v=HlijXStqauA).
>> Another solution is to fake out the car by using a bogus TPMS
>> transmitter which pretends to be the sensors in the wheels (e.g.,
>> https://tpmsbypass.com/tpms-bypass-shop/). A lot more expensive than
>> black tape, but less techy than dismantling the dash cluster. I didn't
>> see any USA bypass transmitters listed for Subaru, but I didn't look
>> elsewhere. Considering the price of tires these days, and having to
>> replace all 4 in an AWD car, I consider TPMS will save my tire(s) from
>> me driving on them flat or severely underinflated, like a valve stem
>> started leaking (because it was bad, not just because it got loose).