# 2021 Lexus RX 350 - tire pressure too high? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** lexus, rx350\ **Created:** [February 17, 2021, 3:23pm UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202 "2021-02-17T15:23:23Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![TerryTorrence](https://avatars.discourse-cdn.com/v4/letter/t/51bf81/32.png) [@TerryTorrence](https://community.cartalk.com/u/TerryTorrence)\ **Post date:** [February 17, 2021, 3:23pm UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202/1 "2021-02-17T15:23:23Z")
My Lexus 350 car tire pressure is 39 and the recommend pressure is 23 - 33. The weather has varied greatly. Is it dangerous to not do anything? ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [February 17, 2021, 3:58pm UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202/2 "2021-02-17T15:58:33Z")
I would adjust them to the correct pressure listed on the door jam placard when cold. Look again, I can’t imagine as low as 23 PSI. As to your question, dangerous—possibly, harsher ride—definitely. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [February 17, 2021, 4:58pm UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202/3 "2021-02-17T16:58:13Z")
Mr. Google says 33 psi front and rear tires . Where does this 23 number come from ? ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [February 18, 2021, 1:46am UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202/4 "2021-02-18T01:46:13Z")
> [@TerryTorrence](#): > > My Lexus 350 car tire pressure is 39 and the recommend pressure is 23 - 33. The weather has varied greatly. Is it dangerous to not do anything? I suspect you made a typo and reversed the digits in 32, making it 23. Anyway, if there’s too much pressure in a tire it has less contact with the pavement and obviously that’s not good. A little over, say 34 or 35psi, won’t hurt much but your pressure is high by about 20%. ---
**Author:** ![CapriRacer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/capriracer/32/22_2.png) [@CapriRacer](https://community.cartalk.com/u/CapriRacer)\ **Post date:** [February 18, 2021, 1:20pm UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202/5 "2021-02-18T13:20:46Z")
I am sure that the 23 is a typo. Tire Guides says 33/33 front/rear. Is 39 dangerous? Probably not, but tire pressure varies according to ambient temperature and if the 39 figure was measured in a heated garage (say 70°F) and the outside is 20°F, then the tire is actually being operated as though the tire was inflated to 32 psi cold. (1 psi for every 10°F change) ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [February 18, 2021, 3:33pm UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202/6 "2021-02-18T15:33:22Z")
> [@CapriRacer](#): > > Probably not, but tire pressure varies according to ambient temperature and if the 39 figure was measured in a heated garage (say 70°F) and the outside is 20°F, then the tire is actually being operated as though the tire was inflated to 32 psi cold. I believe you meant to say 34 PSI here. ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [February 18, 2021, 3:34pm UTC](https://community.cartalk.com/t/2021-lexus-rx-350-tire-pressure-too-high/175202/7 "2021-02-18T15:34:51Z")
> [@TerryTorrence](#): > > My Lexus 350 car tire pressure is 39 and the recommend pressure is 23 - 33. Are the tires cold when you take this measurement? Is the car outside or inside your garage at the time?