I’ve got a 2018 Ioniq, maybe the pressure sensors are acting up?
My Ioniq seems to pick the first tire it thinks is low, and then keeps showing that one as the problem even when all of them are at 36 PSI, even if some dip below.
Try filling the tire to 5 PSI over the recommended pressure, that should turn the warning off. Then you can drop it back to the recommended PSI or leave it 1-2 PSI over if you’ve been driving for a while.
I h8u
My ‘17 Elantra does the same thing. With the temperature swings here, I just fill them to 38 PSI so I don’t have to top them off every couple of weeks.
shlet said:
My ‘17 Elantra does the same thing. With the temperature swings here, I just fill them to 38 PSI so I don’t have to top them off every couple of weeks.
I think 38 is a bit high for cold pressure.
@Timber
You’re probably right, but it seems to work with the highs and lows where I live. It’s more of an issue in spring. It’s annoying when the light comes on when you thought you filled up a few days before, especially with temperature changes.
@shlet
Same here, 17’ Elantra. Back right tire keeps acting up.
Your tire pressure is probably low. The first tire that shows low will keep showing until you fix it.
Forgot to mention, I’m in central Texas. It was 47°F this morning, then up to 86°F at noon.
I’ve had it dealer maintained, though they did lose my key once.
Try driving it over 50 MPH for like 10 minutes.
This isn’t just a Hyundai issue. My Mazda did the same thing. I had to go well over the pressure of the other tires to get it to clear. For example, when the other tires were at 32 PSI, the one with the alert needed to hit 34 PSI before the warning went off.
My G70 did this too today, probably because of the temperature drop. But all four tires went from 36 to 29 PSI, and only the rear driver’s side showed as low.
33 and 34 PSI are too low. Try filling them to 35 PSI.
134k miles! Guess that Hyundai reliability myth isn’t true, huh?
I’ll give it a try, though the max PSI is 34. Maybe they’re using metric PSI.
Mia said:
I’ll give it a try, though the max PSI is 34. Maybe they’re using metric PSI.
Inflate them to whatever the driver-side door sticker shows. My 2017 model recommends 36 PSI.
Mia said:
I’ll give it a try, though the max PSI is 34. Maybe they’re using metric PSI.
It’s 36 PSI, not 34. I had the same model. The front and back are both 36 PSI. Mine would show the warning at 33 PSI as well. Inflate them, drive for a bit, and the warning should go off. Keeping them too low will cause uneven tire wear.