Got a tire pressure warning, spare in door jamb .isted at 60 psi, even stamped on the full size spare 60 PSI. New to me, I wonder why. It is not monitored for pressure. Curiously 3 tires were at 30, and one was 33, recommended pressure. I don’t get that!! Filled em up light still on, off to the dea…

Your full size spare is 60 PSI? I know donut spares are high pressure. Is your full size a different construction?

If you have a full size tire as a spare then 60psi is wrong . That should be the Maximum pressure not the operating pressure . Some vehicles monitor all four and spare but that usually does not apply to the temporary donut spares.

[image] Barkydog: Filled em up light still on, off to the dealer I guess. Depending on the type of system your car has, may take a mile or so of driving to reset light.

I expect the 60 psi for the spare is correct. Does your tpms warning system tell you which tire is the problem? Or just that one or more of them has an incorrect pressure? My guess, one of the sensors or its battery has failed. Sensors fail from time to time, ask Boeing’s ex-CEO Dennis Muilenbur…

60 psi is correct for that skinny little temporary spare.

Just my opinion, for Toyota to call that a ‘full size spare’ is misleading. I would consider full size to be exactly the same size as the other four.

[image] George_San_Jose1: Does your tpms warning system tell you which tire is the problem? No there is no individual tire information.

I wonder if a shop having the Toyota scan tool could determine which tire it is?

Possibility, I bought an extended warranty for $1400, talked to the dealer, they said bring it in, no problem.

Spare tire 60 PSI

General Discussion

Barkydog October 27, 2021, 10:43pm 5

We did 10 miles yesterday, 40 today. From the online manual.

Tire size 225/65R17 102H, T165/80R17 104M (spare)
Tire inflation pressure
(Recommended cold
tire inflation pressure)
Front: 33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Spare: 60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size 17 × 6 1/2J (steel wheel),
17 × 7J (aluminum wheel), 17 × 4T (spare)

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Spare tire 60 PSI

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