Tpms alerts

sse1990

Registered Member
Original poster
Dec 12, 2011
31
On my 2012 Sierra, it has the Tpms. Recommended tire pressure for the truck is 45psi front and rear. The winter tires I will be using have a max pressure of 44psi. I was curious if anyone knew how many psi below recommended pressure listed on the door I can go before the TPMS tells me my tires are low.

So if recommended is 45, can I run my winter tires at 40 without getting a warning. I could just not bother with sensors in the winter tires, but can't stand having idiot lights on.
 

harmless

Guru
Nov 21, 2011
2,049
Hey Mike,

For comparison, on the TBSS, they recommend a pressure of 35PSI on their stock tires (RSA).

On the Prada Spec-X I run, they recommend a pressure of 45PSI.

I run them at 45PSI. The TPMS won't freak out on me unless they go to 55PSI (high) or 28PSI (low).

I think you've got a good range to work with there bud! :thumbsup:
 

deekster_caddy

Registered Member
Feb 24, 2012
133
A little late to this thread. I believe the TPMS threshold is 10% low before it should trip. It sounds like you didn't get the right load rating on the tires. Don't exceed the sidewall max pressure!
 

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