Hi Scotty
The frame rotted out on my 78 dodge aspen with a slant 6 with 600K miles so I bit the bullet and bought a 2021 Kia Sorento. The tire pressure indicators only work while the car is moving. According to the dealer this is normal. If your tires are low don’t you want to know before you pull out of your driveway and start off for work. On other car brands do tire sensors work the same way.
OK folks, people should pay attention to their cars. BUT they don't.
I have the passive style TPMS on my 09 Toyota, (they year before they switched to the battery-operated ones that measure actual pressure. Disadvantage - I have to drive 100 yards before it tells me if I have a low pressure tire. Advantage - it works fine, whereas lot of people with 2010 Toyota s would have to pay a lot of money to have the tires taken off to replace the run-down batteries in their tires so they would work at all (which most people don't).
So, a less sophisticated solution - but a robust and durable one. I don't know about you, but I LIKE robust and durable.
If you search on this website itself, you’ll find plenty of threads uncovering the piss poor engineering & quality of Korean products. Unfortunately for you, you’re stuck with it..
Actually this is my third Hyundai / Kia product and the first two served me well. Unfortunately the old Dodge would not pass inspection so it had to be retired. I like this new car over all. This is the first car that had an actual readout of tire pressure of each tire. The first two Hyundai's just had a low pressure light that worked the instant the car was started.
On my Auris it triggered TPMS light when there was a deviation in pressure. It does not display actual values so I had to check the pressure manually.
Ah yes, the TPMS. It's just about as useless as the Auto Start/Stop feature. It was designed for lazy people who won't buy an $8 tire gauge and use it.
I did not ask for it. It came with the car. Being the former owner of a 78 Aspen I actually have a tire pressure gauge and a compressor. If the old dodge was repairable I would have fixed it. I see this feature on a lot of cars. The question is do all of these vehicles have to be moving to for the pressure to be displayed or the warning light to be triggered. The dealer said there was a battery in each tire that would be drained to fast. The wife's SantaFe is ten years old and the low pressure light still works for all four tires.
Some vehicles use an "indirect TPMS" system that does not use pressure sensors in the tires. Instead, software evaluates inputs from existing sensors to determine low tire pressure indirectly. In that kind of system there would not be any batteries in the tires to worry about, but you would not be warned of low tire pressure until the car was moving.
https://en.wikipedia.org/wiki/Tire-pressure_monitoring_system
Sounds like Hyundai/Kia to me. Their typical poor quality, but people keep snatching them up because "they are such a deal" and "they have a great warranty".
My wife's 2015 Camry has TPMS and you can view all four tires at any time. My 2020 Accord has TPMS but is notification when low only.
I personally check our cars will an old fashioned manual pressure tester anyway, so for us it is irrelevant.
No. they don't all work that way. Kia is just cheap so they decided to use the wheel speed sensors for estimating tire pressure.
That might be good for detecting a difference in pressures based on RPM but the dash board reads in exact PSI.
I love the car. It's real easy to find in the mall parking lot. You just look for the plume of smoke. One of the annoying things was the $400 I paid for paint. The car was pearl white and the paint was extra on the sticker. I don't know what color is free. Maybe bare metal or primer gray. Oh yea I forgot. The heat shuts off in cold weather to save gas. When it's 19F (that's -7C for those in Canada and the rest of the world) the 1st thing that come to mind is all those woodland creatures that have fur coats that I am saving while I freeze to death.
Just don't tell my wife. {black}:sweaty:
*chuckle* {black}:laugh:
Any body have an explanation on how speed sensing can be correlated to tire pressure in PSI?
a flat tire has a smaller circumference than an inflated one, and therefore spins faster.
78 Aspen! Died of cancer at 43 years old! For a regular use car that was a long life. RIP!
My Dad bought it in 1978 the year he retired. He only drove it to the local gas station for it's yearly inspection and the rest of the time it was in the garage. I convinced him to part with it in 1990 when it had only 1200 miles on it. It was a second play car for me but it was kept outside. I rotted away slowly. You had to keep a spare distributor cap in the glove box in case it rained. It had 75K when it would no longer pass inspection. The A frame rotted and detached from the body. It was just not safe any more.