If you want to do things yourself you can also buy a manual TPMS sensor
activator/monitor, which allows you to read the ID/temp/pressure from
each sensor (and most have an ODBII port that will read what your
vehicle thinks the ID's should be, and in most cases program the vehicle
to read a new / different ID.
[But I could imagine that Tesla may have implemented their own funkyness
so default TMPS activators wouldn't work...]
They typically cost $100-200, so probably cheaper to have a tire shop do
it for you unless you plan on swapping tires around (summer/winter)
yourself a lot.
Jay
On 5/10/25 01:00, (-Phil-) via EV wrote:
The car knows which wheel is which. In the service tab you can see all the
pressures, and if one is not transmitting you can see which it is.
On Fri, May 9, 2025 at 6:15 PM Mark Hanson <[email protected]> wrote:
Thanks Phil for your help.
The USB is the one that came with the car. I read on Reddit, a guy tried
a 1 terra byte USB that fixed his when he added his music to the camera
flash drive, so might try a larger one. I also noticed when I **just**
had music on a USB 64GB drive, there were **no** intermittent glitches *
*but** I lost camera recording. As John Lennon would say “Life is Full
of Tradeoffs”.
Thanks for the info on the TPMS 433 Mhz transmitters/batteries. I found
nothing in the manual and not much on the Net that was reliable info. The
next time I get a tire change, about 50K down the road, I’ll get them
replaced. When I rotate the tires (just do front-rear rotation), I have
the rims marked so if it shows LF low 38psi instead of recommended 42psi –
I’ll know what tire it is. The TPMS error started 5K miles after tire
replacement.
Have a renewable energy day,
Mark
Mark E. Hanson
184 Vista Lane
Fincastle, VA 24090
540-473-1248 phone & FAX, 540-816-0812 cell
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*From:* (-Phil-) [mailto:[email protected]]
*Sent:* Friday, May 09, 2025 6:09 PM
*To:* Electric Vehicle Discussion List
*Cc:* Mark Hanson
*Subject:* Re: [EVDL] Tesla Y glitches and twitches
USB errors are probably related to the brand of USB drive, if they
persist, try another.
The TPMS transmitters do have batteries and are inside the tires, so you
have to at least brake the beads to replace them. Best to do them all at
once, as if one died, the rest aren't far behind, that said; they are
supposed to last 6-10 years, so maybe you just had one go bad.
Be sure you get the correct ones for your car, they have multiple types.
On Fri, May 9, 2025 at 3:00 PM Mark Hanson via EV <[email protected]>
wrote:
Hi folks
Now that I have 118K trouble free miles on
My 21’ Tesla Y, I’ve noticed a few minor things come up that the great god
google with AI crap generates random idiocy. The USB port intermittently
shows a fault requesting to be momentarily unplugged since I added 43GB of
music to the camera flash drive a year ago
Also at 118K miles it shows a tire pressure monitoring system fault. Does
anyone know how these 433Mhz transmitters work? Do they have tiny
batteries in the valve stem that need replacing? Or should I have had them
replaced when I changed the tires last month? Since they’re inside the
tire, I assume they have pressure sensors. I just ignore the warning and
check my tires pressure as if it were a Nissan Leaf.
It’s been a good trip car but if Elon is still in charge when it poops out
200k+, I’ll buy one of the other 43 EVs available that has a Nacs/Ccs fast
charging standard.
Best regards
Mark in Roanoke Va
Sent from my iPhone
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