Blinking TPMS, Gone After OBD, but No Code?

I don't know why there is no failure code, but it looks like you may have a dead battery on one of your TPMS sensors.

 

Tire pressures ok?

 

I have the same thing on my 08. It's likely a dead battery, as they last about 10 years.

 

I lost one at 9.5-yrs and the others still going almost 12-yrs in July.

If you reset the TPMS codes, that temporarily turns out the warning lights.
After that it takes about a 30-minute drive for the system to re-calibrate and throw the warning light again. But looks like you got a dead batt.

I use Techstream so you can read the pressures and see the "NA" when you got dead batt. I think this throws an error code in Techstream but maybe your device is not seeing it?

 

Well here's what I did, not that I recommend it for this case.
TPMS Management with Techstream | PriusChat

I found a way to fake a reading...so I bought one new TMPS and had that installed. That gave me one spare TPMS I put in the glove compartment. in a big binder clip. So basically I am covering 3 out of 4 tires, and the light is off.

>>What you could do better in your case, is figure out which tire is bad, and just replace that one TPMS.
Keep the old one if you are electronically handy you might be able to replace the battery with some tear down.

I am surprised they are charging so much for the install when you are supplying the units. Sounds like they are not passing the saving onto you. But replacing all 4 is thing to do.

 

No probably not. If you own a ScanGuageII, they recently added the Prius tire pressure/temp readings, but you have to send your unit in for software update.

Many of us use Toyota Techstream knock-off which was available for $20 to $40 on Amazon or EBay. Not sure status today.

 

...up to you...$240 is not a bad price, much cheaper than Toyota I think. But you could find cheaper.
You need to consider NJ state inspection...Virginia we are allowed to have TPMS warning light on.
I used to live in South Jersey, but that was pre-TPMS.

NJ seems to be not required.

 

If I was in a State where license renewal did not require functional tpms, I'd leave it be. OTOH, I think there's federal legislation, that tire shops are obligated to send you on your way with functional tpms? Maybe there are work arounds, tires mounted on loose rims for example.

Think I even heard the shops were asking customers to come into the shop do some final step or something, so that it could technically be the customer's responsibility. In short, total Monty Python stuff.

Maybe whats need is some more legislation (groan) that says the tpms system needs to be readily programmable by the owner, without the need for proprietary software or expensive devices.

 

Tire rack installed my new TPMS sensors and did not charge me. I did not buy them from them.

 

I think if you can manage to show up there with loose wheels* that'd improve your odds. That's pretty much what I always do: get OEM wheels retired when snow tires are on the car, and vice versa. Up here there's no reg's AFAIK, but I just prefer that approach.

* I mean "loose" as in transported in another vehicle, or in your hatch if you have alternate rims. Not on the car with loose lug nuts, lol.

 

Never heard of replacing lug nuts at 100,000 miles, it's not in the maintenance schedule. If it was why not replace all the studs too?

 

I am not thinking the law states tire installers have to give you working TPMS.
But they are not allowed to disable the system.

 

Just googling, some info on the US law and how it applies to tire retailers here; it's a tiresome (I did not mean that pun, lol) read though:

Dealing With the Legalities of TPMS: ‘Ignorance of the Law is No Excuse’ - Service - Modern Tire Dealer