bagofchips

Seems hard to believe that a sensor would fail and then fix itself. Was going through the flash then solid reliably for days and now no indicator lit.

I’m about to get tires and so probably time for five new sensors on this ‘13. Just surprised the indicator would stop.

salimshah

Great idea to replace the sending units with age of 9~10 yrs. No sense in taking the gamble and pay for unmoving tires + rebalancing + re-install.

Does your model display the tire pressure? If yes, if and when it happens again see what it shows.

I think most likely you will have 4 sensors as that is the case with me as the spare is a dinky doughnut.


Salim

Clutchless

One TPMS battery is slowly failing. They get worse when the temperature drops.
My 2016 Toyota Sienna exhibits a similar pattern. It does not show individual tire pressures. The TPMS light starts flashing, I check the tires and all is fine. Then it goes solid, then it goes away the next time I drive. It did this multiple times last year, mostly when it was colder. When it warmed up it stopped this behavior. So it has not done it since last February.
I think one TPMS battery is weakening, but will not do anything until it is either on all the time or I need new tires. Since the tires only have 10,000 miles on them, it may be a while.

salimshah

In my 2011 450H, it shows 4 pressure readings [although I cant tell which line item relates to which wheel].

When I start the vehicle in the morning with the tire pressure display, I see the values trickling in. When the sending unit battery was weak, the information would take longer to display.

The warning light is mother of all 4 readings.

Salim