I find several things irritating about them. First thing is that when we get a cold snap here, after dragging myself out in the bitter cold and firing up my car, I hear the chime and the light goes on. It’s sort of a given that when it’s single digits, the tire pressure will go down, and therefore I’m going to be staring at that light for a while until the temperature warms up.
The second seems to be a Chrysler specific, which is that even after adding air to the tires, the light will stay on for some time, sometimes even several days before it goes off. The display on my dash shows the tire pressures displayed and the low tire blinking. And I’ve got to stare at that thing for many miles telling me my tire is low with the necessary 38psi in it.
Both my 09 Challenger and 14 Dart do this.
I had a 08 Ford and when it’s tire pressure light went on, I’d add air and it would turn off immediately. Why does Ford get it right but Mopar can’t?
The only time the light benefited me was one time in that Ford. I was driving home and it turned on. Got home and checked it, and it was low. Tried to add air but air was leaking in the valve. I had some stems in my garage so I changed the stem, filled up the tire and it was fine. So the TPMS saved me having a flat tire from a slow leak from a leaky valve that time.
But since then, it’s just been an irritation in my Dodges.

I hate them too. I put summer wheels and tires on my Ram that do not have sensors, so that damn light is on all the time. When I went to put my stock wheels and tires on this winter three of the sensors would not work even after resetting them. Just more junk to break... So $50-60 bucks more everytime you put new tires on? NO THANKS!

On my Crossfire, they go right off after I add air, before I even get back in the car.

it depends on the car manufacturer. some cars the TPMS will automatically light will turn itself off. some cars you must drive a bit after adding air to get the light to turn off. some cars you have to push a switch somewhere to reset the light. some cars require a scanner to reset the light to get it to turn off.

also on some make of cars, i know most VW's are like this. DON'T HAVE SENSORS in the tires to check pressure. they use the ABS sensors to monitor tire rotation to check tire pressure. add air drive around the block and the light resets itself. the biggest drawback of this if you like to run higher or lower air pressure beyond manufacturer specs the light will automatically turn on, also change the tire size, circumference, you need to change the tune to turn off the light.

The whole issue is a great example of the government mandating a technology that wasn't ready for the marketplace. After several idiots panicked and flipped their Explorer's (see the Car and Driver article from that time that proves their was noting wrong with the vehicle's stability), the politicians decided SOMETHING had to be done.The problem was, they specified HOW the system had to work (a sensor in each tire), not WHAT it had to do.

I was running a municipal garage, and had a pair of 2000 Impala police cars (tremendous POS with a laundry list of problems). They DID have one VERY useful feature: a tire pressure warning system that was just several lines of code in the ABS computer that compared the rpm of each tire. If one tire's speed increased more than a certain % over the rest (as it would when the pressure in that tire went dow and the rolling circumference got smaller)it displayed a warning to the driver. NO sensors in tires to fail. NO additional hardware AT ALL. NO EXTRA COST, EVER!! Too bad it doesn't comply with the law...

I don't mind them. I actually bother to check tire pressures now and again but it's nice to have that warning that something is wrong if one ever does go low unexpectedly.

Yeah - if they're smart enough they work well. Our '13 VW CC sedan reports the tire pressure at each corner in 'real time', and only issues an alert after a significant loss, so I can monitor the pressure (summer/winter) to keep it correct, AND get the ALERT of a puncture after I hit one of the abundant potholes around here and replace the @&^#$&^*%# tire.
- Art

If you kept your tires properly inflated you would never know they were there.

And they blamed Firestone for the issue when it was Ford who set the pressure of the tires on their SUV lower so the yuppies wouldn't have such a harsh ride...

Vehicles that use the abs wheel speed sensors as a way to determine tire inflation are called indirect TPMS systems. Any car produced since 2008 has to have a direct TPMS system,meaning they need to have sensors in the wheel assembly.

NOT TRUE.. Honda's CRV , from 2013 up until at least 2018 have indirect TPMS systems... I am not sure what other cars also use indirect TPMS systems..

all the reply's covered it, plus my sis dose a once a month check on her 13 dart fluids,air a quick look at stuff and even tho the air pressure was ok she still had a light on and when she got new tires and replaced a rim she was able to to get a reg stem and the guy was dont tell any one its illegal and thats when i looked and found up to a $10,000 fine

That's odd to me, never had a single problem with my '13, '15 or '16. I switched wheels on my '13 to some '15 factory takeoffs, they sync'd up in about a mile. No scan tool required, just drove.

What I like about the FCA products I have had(16 Journey and 18 Durango RT) is that it reports the tire pressure per tire and the system doesn't require adjustment, you can rotate the tires and it picks up the right sensors without a scan tool. Our Chevy stuff at work requires a scan tool to get them right and the places that rotate the tires often don't do that right. So while it reports pressure for each tire, its your guess as to which one it is actually reading. I still would rather have them than not, especially on lower profile tires.

interesting
i just mounted and balanced a NEW tire on a NEW rim on a 2018 VW jetta 2 days ago. there was no TPMS sensor and no warning light on the car when it left.

I still think the real bottom line there was that a car or even an suv should not roll over because a tire pops, that was a ford issue also.

oh I watched an Exploder practically roll over on the highway one day. A semi was merging onto the highway on a very, very short merge lane on a bridge. the Exploder had to make a very abrupt lane change and that is when it nearly went over, he corrected to keep it off the wall and then it got really hairy. Back and forth several times at high speed and I was surprised it didn't come over the wall into the oncoming lanes, where I was. Low tire pressure was not the root cause of those things rolling over. They are narrow and have a high center of gravity. A very unstable vehicle to begin with. Add in a blowout and anyone with even a modest amount of critical situational thinking can envision the result. Again, Ferd stupid!

Sorry. The info I had says direct TPMS was mandatory at 2008......seems that was incorrect. Apparently they have figured out how to make indirect systems accurate enough to fulfill the requirements.Everything I deal with on a daily basis is direct ...my apologizes.

no biggie.
with modern cars ALWAYS consult the manufacturers repair info before starting repairs in areas you are not 100% certain on how to do the job.
new cars have evolved so much so fast it's impossible to know everything there is to know about them. even the same model of car but different generations have different type repairs for the same job with the same drivetrain. and so many manufacturers do the same thing with a different way the factory repair manual is important to have on hand when doing repairs.

there isn't a quick easy repair that is basically the same thing between all cars on them any more.
something else to hate about modern daily drivers.

her dart is weird hehehe i think it was a fleet vehicle have no idea what trim package it is