AustinHusk

I keep mine at 35.5 PSI. The door jamb sticker states 33 PSI.

After driving a few miles it climbes to 38-39 PSI (it was almost 85 deg. today while driving)

Is this ok?

litesoarer

I don't see why it's a bad thing.

Recommended is cold psi.

rominl

iTrader: (4)

correct, recommended psi is always in cold condition

AustinHusk

So in rest mode (ie. after overnight) it's at 35.5. OK?

litesoarer

Sounds great.

I've got to go in for service soon and will likely go to 36 cold since most of my driving is highway.

seanl

I just got my car last week, I set my tires for 34psi cold. They warm up to high 30s on the freeway. Totally normal.

R Z

Mine are a mess. One tire says 40, one says 33, the other two 34. Then this morning my low air notice came on. 5th tire registering 27. This is the third notice since I got the car. Taking it in tomorrow.

AustinHusk

Could just be that you haven't inflated them correctly? Unless you're getting a free check at the dealership go out and buy yourself one of . .... (it's $75 at Costco vs. the $118 at Amazon). Worth EVERY penny. One of the best devices I've bought. No more going to the gas station and fiddling around for quarters..... or worse still.... trying to drag that silly hose around your car just to realize that it doesn't extend all the way... and then your time'$ up... and you have to insert more quarters!! Saves me a ton of time, plus I not only can inflate my tires in the comfort of my own garage, it's also a jump starter and power station AIO (not to mention taking it on long road trips).

R Z

I've taken the car each time to the dealership. They say nothing is wrong, fill it up and off I go. This time I'll get my oil changed and get them to seriously review each tire. We shall see.

droclex

Chances are that they inflated your tires while they were warm. Check the pressures before your first drive of the day, after the car has been sitting overnight. Use your own air compressor like suggested to inflate as needed. Check the pressure on your air compressor and see if it matches your car's monitor. If they are way off, sure something might be up with your sensors. If they more or less match one another and any tire still is overinflated, release a little air to get it into the range of 33 psi range cold, including the spare. It will take a few tries to get it right where you want it. If you want a firmer ride, you may want to use 35psi as a cold baseline, which is ok too; it's just a personal preference.

If right after or during your daily drive you check the pressures again and find that a tire has lost or gained a significant amount of air, then it could be one of following issues: a tire's seal is leaking and might need to be replaced or one of your tpms sensors is malfunctioning. Good luck!

droclex

And yes, it is normal, especially if it's warm outside.. Mine do the exact same thing

R Z

I'm sitting at the Lexus dealership. The 40 pounds is the spare. They say that's normal. Therefore the 27 pound is probably the result of a new roof in the neighbors home. Oh joy.

Kuhan

Is this a serious question? Is this the first time you drive a car? Lol

R Z

Nothing wrong with the tire. Just decided to go from 33 to 27. All good.