# Do tire pressure monitoring system show tire pressure for each tire these days?

**URL:** <https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978>\
**Category:** Factual Questions\
**Created:** [April 20, 2023, 5:10pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978 "2023-04-20T17:10:05Z")\
**Posts on this page:** 20\
**Page:** 2

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**Author:** ![california\_jobcase](https://avatars.discourse-cdn.com/v4/letter/c/9d8465/32.png) [@california\_jobcase](https://boards.straightdope.com/u/california_jobcase)\
**Post date:** [April 21, 2023, 1:46am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/21 "2023-04-21T01:46:54Z")

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> [@Sam\_Stone](#):
>
> But this was at a dealer,

'Nuff said.

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**Author:** ![Czarcasm](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/czarcasm/32/4050_2.png) [@Czarcasm](https://boards.straightdope.com/u/Czarcasm)\
**Post date:** [April 21, 2023, 1:49am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/22 "2023-04-21T01:49:13Z")

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My 2020 Rogue-displays the air pressure for all four tires.

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**Author:** ![hajario](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/hajario/32/171_2.png) [@hajario](https://boards.straightdope.com/u/hajario)\
**Post date:** [April 21, 2023, 5:06am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/23 "2023-04-21T05:06:32Z")

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I highly recommend the below product. It’s a little pump that is powered in the cigarette lighter port. Reads the pressure and pumps it up to the set pressure

> **[Amazon.com: EPAuto 12V DC Portable Air Compressor Pump, Digital Tire Inflator :...](https://www.amazon.com/EPAuto-Portable-Compressor-Digital-Inflator/dp/B01L9WSTEG)**
>
> Buy EPAuto 12V DC Portable Air Compressor Pump, Digital Tire Inflator: Air Compressors & Inflators - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

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**Author:** ![Tzigone](https://avatars.discourse-cdn.com/v4/letter/t/839c29/32.png) [@Tzigone](https://boards.straightdope.com/u/Tzigone)\
**Post date:** [April 21, 2023, 11:04am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/24 "2023-04-21T11:04:17Z")

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I have a pump. I want to be able to know whether I need to pull over in the first place or not.

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**Author:** ![Jasmine](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jasmine/32/2964_2.png) [@Jasmine](https://boards.straightdope.com/u/Jasmine)\
**Post date:** [April 21, 2023, 11:20am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/25 "2023-04-21T11:20:12Z")

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Being a working minion, I can’t afford a luxury car. My Honda RV-4 has a tire pressure light on the dashboard that basically says, “There has been a change of several pounds in tire pressure in one of your four tires. Get your butt out there with a tire gauge and figure out which one it is. It’s freezing with a wind? Too bad, so sad. I hope you guess the right tire first.” Usually, though, I can tell by the feel of the car which tire is the likely culprit.

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**Author:** ![pulykamell](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pulykamell/32/3166_2.png) [@pulykamell](https://boards.straightdope.com/u/pulykamell)\
**Post date:** [April 21, 2023, 1:17pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/26 "2023-04-21T13:17:20Z")

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Our 2020 Hyundai Ioniq has individual pressure sensors. It’s been helpful as we constantly get flats in this car with the low profile tires and Chicago potholes. We’ve had four or five flats in the last twelve months. The monitor at least tells me if I just have a slow leak or a complete flat and how quickly I should get over, though almost every time the answer has been : 0 psi, pull over now.

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**Author:** ![phs3](https://avatars.discourse-cdn.com/v4/letter/p/8491ac/32.png) [@phs3](https://boards.straightdope.com/u/phs3)\
**Post date:** [April 21, 2023, 1:34pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/27 "2023-04-21T13:34:36Z")

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> [@Sam\_Stone](#):
>
> TPMS sensors tend to have a lifespan roughly similar to the tires they monitor - 5 years, or 100K km or so.

Ya know, I’ve read this. But our Sienna just passed 12 years, and I’ve never had to replace the TPMS. So color me confused.

As for OP’s question, my understanding is that TPMS is mandated on all cars built after September 2007. What isn’t mandated is how precise/informative TPMS is. So some vehicles tell you individual pressure; some have a warning light; and I’m guessing that some tell you which tire, without telling you the pressure.

The chirp-when-you-hit-pressure is a nice feature! Someone was having a good day when they thought of that.

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**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\
**Post date:** [April 21, 2023, 2:16pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/28 "2023-04-21T14:16:19Z")

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I bought one like that. I like that it’s automatic and that you can screw the inflator hose onto the valve, so you don’t have to crouch or bend over the whole time.

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**Author:** ![bordelond](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bordelond/32/150_2.png) [@bordelond](https://boards.straightdope.com/u/bordelond)\
**Post date:** [April 21, 2023, 2:39pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/29 "2023-04-21T14:39:37Z")

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FWIW, my 2017 Ford Escape throws up a tire-pressure warning when a tire drops to 25 PSI. While it’s true that it won’t help you determine whether you’re experiencing an immediate pull-over-now event, knowing the exact pressure at the time of the alert has been helpful in my experience.

A 25 PSI tire on my Escape (and I’d think on most all daily-driver vehicles) looks completely normal – it doesn’t look slightly squashed or quasi-flat or anything like that. So, if you get out, can’t tell by looking, and have to check all your tires with a gauge to determine the culprit … odds are you’re experiencing a slow leak.

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**Author:** ![kenobi\_65](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kenobi_65/32/13178_2.png) [@kenobi\_65](https://boards.straightdope.com/u/kenobi_65)\
**Post date:** [April 21, 2023, 2:43pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/30 "2023-04-21T14:43:29Z")

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The 2015 Corvette we inherited when my father-in-law passed away has a menu on the dashboard which will display the actual tire pressure in each tire. Our older cars (my 2012 Mustang, and my wife’s 2007 Mazda CX-7) both have the simple idiot light indicators.

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**Author:** ![RealityChuck](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/realitychuck/32/195_2.png) [@RealityChuck](https://boards.straightdope.com/u/RealityChuck)\
**Post date:** [April 21, 2023, 5:58pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/31 "2023-04-21T17:58:56Z")

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My 2022 Hyundai has a display for each tire.

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**Author:** ![TheCuse](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thecuse/32/2854_2.png) [@TheCuse](https://boards.straightdope.com/u/TheCuse)\
**Post date:** [April 21, 2023, 6:25pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/32 "2023-04-21T18:25:44Z")

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> [@Uncommon\_Sense](#):
>
> My 2016 Jeep Grand Cherokee shows each tires’ pressure and will chime and illuminate the display if any of them go below a certain level.

Same with me. I think it’s 5 pounds and then it alerts. Mine also has the tire fill alert so when I’m filling the tire it shows me and beeps when I’ve put in enough air.

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**Author:** ![phs3](https://avatars.discourse-cdn.com/v4/letter/p/8491ac/32.png) [@phs3](https://boards.straightdope.com/u/phs3)\
**Post date:** [April 21, 2023, 7:03pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/33 "2023-04-21T19:03:58Z")

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> [@bordelond](#):
>
> So, if you get out, can’t tell by looking, and have to check all your tires with a gauge to determine the culprit … odds are you’re experiencing a slow leak.

I’d amend this to say “If it happens more than once in a few weeks”. Tires DO leak slightly by nature, and TPMS are prone to triggering when seasons change and it gets colder, too.

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**Author:** ![Si\_Amigo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/si_amigo/32/2877_2.png) [@Si\_Amigo](https://boards.straightdope.com/u/Si_Amigo)\
**Post date:** [April 22, 2023, 6:59am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/34 "2023-04-22T06:59:18Z")

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> [@phs3](#):
>
> TPMS are prone to triggering when seasons change and it gets colder, too.

More correctly, the are designed to trigger when it gets colder because the tire pressure varies with tire temperature.

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**Author:** ![eschrodinger](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/eschrodinger/32/122_2.png) [@eschrodinger](https://boards.straightdope.com/u/eschrodinger)\
**Post date:** [April 22, 2023, 8:25am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/35 "2023-04-22T08:25:22Z")

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My 2021 Mazda3 Premium will display individual tire pressures in the dash display. I can also check it on my Mazda app. The app is super useful – I can also check how much gas I have, check whether the doors are locked, and remotely lock or unlock them

> [@Si\_Amigo](#):
>
> More correctly, the are designed to trigger when it gets colder because the tire pressure varies with tire temperature.

Yeah. It’s not like you should ignore it, because it’s just that the tires are cold. It means the tire pressure is low, regardless of the reason.

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**Author:** ![FinsToTheLeft](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/finstotheleft/32/2930_2.png) [@FinsToTheLeft](https://boards.straightdope.com/u/FinsToTheLeft)\
**Post date:** [April 22, 2023, 10:24am UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/36 "2023-04-22T10:24:53Z")

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Just checked my 2021 Volvo S60 and it only allows you the reset the system at “ok” after manually checking the tire pressure with no display of the actual pressures.

My car uses a passive system tied to the ABS to determine a low tire, rather than an active system with a sensor attached to each valve stem.

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**Author:** ![pullin](https://avatars.discourse-cdn.com/v4/letter/p/c57346/32.png) [@pullin](https://boards.straightdope.com/u/pullin)\
**Post date:** [April 22, 2023, 12:28pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/37 "2023-04-22T12:28:34Z")

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My old pickup ('17 Dodge) had a pressure reading for each tire, presented on a square graphic with numbers at each corner. Since forward and rear tires required different pressures (60 .vs. 80), tire rotations caused a series of warnings. Even if the workers remembered to change the pressures, the system refused to believe it for about 10 minutes, insisting on visual warnings and the occasional “Bong - Bong” to alert me.

My new pickup ('22 Dodge) has the same, but with a more fancy display showing “depth” (as though you were viewing the truck from above and behind). Since all 4 now require the same pressure, I assume I won’t encounter the warnings any more. I’ve only got 3800 miles on it, so haven’t rotated them yet.

Wife’s 10 year old Camry just has a single warning. I have to manually hunt down the offending tire if it happens.

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**Author:** ![DavidNRockies](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/davidnrockies/32/6279_2.png) [@DavidNRockies](https://boards.straightdope.com/u/DavidNRockies)\
**Post date:** [April 22, 2023, 12:45pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/38 "2023-04-22T12:45:32Z")

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> [@Sam\_Stone](#):
>
> and you can’t shut it off again without either an OBS II handset or going through a complex series of steps I can never remember.

That’s a wee bit hyperbolic, now isn’t it, Sam?

Here. Here’s the procedure as described in the documentation that came with my car:

> [@](#):
>
> Park the car in an enclosed environment with a temperature of 72_F/22_C and a relative humidity of 44%.
> 
> Stand three feet (0.9 meters) perpendicular to the driver’s door.
> 
> Bend slightly at the knees.
> 
> While holding a Canadian beer of between 4.1 and 5.5% ABV in your left hand, elbow bent at 90\*, can at roughly waist level,  
> - stomp your left foot three times at roughly one second intervals  
> - stomp your right foot twice, roughly two seconds apart
> 
> Using your (empty) right hand, pinch your left ear lobe four times in rapid succession.
> 
> Bark like a chicken – several times (no specific number or cadence is required).
> 
> “Walk Like An Egyptian” once, clockwise, around your car, keeping your left forearm parallel to the ground, a firm grip on your Canadian beer, and your knees slighly bent.
> 
> Drink your beer as fast as you can.
> 
> Spin thrice around in place, counter clockwise
> 
> Now. Do you still give a shit about your tire pressure?

I’ve committed it to memory, and it has saved my bacon more than a few times.

As you were.

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**Author:** ![Sam\_Stone](https://avatars.discourse-cdn.com/v4/letter/s/ecccb3/32.png) [@Sam\_Stone](https://boards.straightdope.com/u/Sam_Stone)\
**Post date:** [April 22, 2023, 3:16pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/39 "2023-04-22T15:16:37Z")

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Heh. Sounds about right.

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**Author:** ![Procrustus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/procrustus/32/2994_2.png) [@Procrustus](https://boards.straightdope.com/u/Procrustus)\
**Post date:** [April 22, 2023, 3:20pm UTC](https://boards.straightdope.com/t/do-tire-pressure-monitoring-system-show-tire-pressure-for-each-tire-these-days/982978/40 "2023-04-22T15:20:46Z")

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> [@eschrodinger](#):
>
> I can also check it on my Mazda app. The app is super useful – I can also check how much gas I have, check whether the doors are locked, and remotely lock or unlock them

I forgot about this. My jaguar app also does this. I can also turn on the heat or a/c from my phone, and will tell me where my car is (Which actually came in handy last week when both the dealer and body shop said they didn’t have it.)

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