TPMS question

So, I replaced the OEM wheels (which were at like 36psi or something like that) with Nitto Ridge Grapplers that I am running at 60psi. My tire pressure light is on and I am guessing that the TPMS is not programmed to receive or report a PSI that high (?).

Did anyone else run into this problem when they switched out tires? What did they do?

 

TPMS reset is under the steering wheel near the hood release latch.

 

Tire shops are notorious for filling them up based off the rating (e or c or p or d) and not for application, so its very possible it is accurate if you have E rates

 

Well, I tried the reset. Even read the manual part on it. Guess I should have done that.

But it didn't work.

Any other thoughts on what to do?

Much appreciated.

 

Can you explain WHY you are running 60psi?

 

Because it felt good. I started at 50 and liked the feel of 60 better. It said 80 max on the tire.

 

Why, would you do otherwise?

 

What exactly did it say where you read 80? What size tire?

 

265/75/16. Nitto Ridge Grappler. Says 80 psi max on the tire.

 

https://www.nittotire.com/media/199070/2014_Nitto-Warranty-X.PDF

Page 11 of the PDF or page 7 based on the number at the bottom of the page. Has info regarding how to determine correct pressure.


When a tire says MAX pressure this is not a recommendation to run that pressure it is a safety thing. Running in excess of this pressure may result in the tire coming off the rim or structural damage to the tires.

 

Well, I am not running at the max (that is 80psi). I don't see anything that says 60 is a problem. Can you show me where it says that?

 

My suggestion is to use stock tire pressures as I am assuming the Nitto’s are stock size. Then do a chalk test where you rub chalk on the tread area from one edge to the other and then go for a super short drive. Stop and check to see how the chalk has worn off. If it has worn off the center but not the edges the pressure is too high. Worn off edges but not middle then pressure is too low. If it wears evenly across the whole tire it is correct.

 

Take it back to the tire shop and have them fix your TPMS light. They may have broken a sensor or something else.

 

The stock size is 245/75/16. It is a pretty small, very street feeling tire. The new Ridge Grapplers are 265/75/16.

They ride nicely at 60psi.

Again, where does it say this is a problem?

 

Not going to show you where “it says that”. This is an age and experience situation. If you don’t want the advice I can let you figure it out on your own.

When you run excessive pressures (or under inflated) the contact patch between rubber and road is reduced. Smaller contact patch and you have less traction. This can lead to spinning the tires or skidding when braking. This also means your tires wear faster and not evenly.

Those I believe are TRD Off Road stock tire sizes. The Toyota recommendation is 30 psi IIRC. I would have to confirm that.

 

Bye.

 

60psi is for trucks that are capable of towing 20,000lbs.

You have wildly over inflated the tire, even load rated E tires should only see 36psi on a Tacoma. We can barely tow 6000lbs and haul 1600lbs.

 

I did actually try 35 at first. It felt sluggish and the tires looked underinflated to me.

 

https://tirepressure.com/car/2017/toyota/tacoma/trd-off-road

Enjoy running your 60psi. You have been given every piece of relevant information regarding the proper way to set proper tire pressures for your truck. 60 isn’t even close.

 

Could you please just go away? Thanks.