Tire pressure warning won't go away

[Buzzman12]

Hi folks.
2023 GT here (Canada). When I took my Stinger for a drive last week, it indicated low tire pressure on the front right tire.
The car sits in my garage for most of the winter, so I wasn't surprised.
I brought the tires back up to 33-34 PSI all around, but the message and the icon will not go away.
The manual says the system will reset on it's own. After driving it again today, with several stops to run a few errands, the message is still there.
Any ideas on how to clear it is appreciated.
I have attached a pic (I hope I did anyway).

 

[Snicklefritz]

I have read about this before. Raise the psi above 40 psi. That should do it. Then after the TPMS resets you can lower it to where you want it.

 

[Buzzman12]

I have read about this before. Raise the psi above 40 psi. That should do it. Then after the TPMS resets you can lower it to where you want it.

Interesting.
Do I do this on all four tires, or just the one that's flaky?

 

[Snicklefritz]

Just the one.

Interesting.
Do I do this on all four tires, or just the one that's flaky?

 

[Alpinesting]

Yeah, had the same issue this winter. Pressure should be between 36-38 psi for all tires without triggering a

warning. Snicklefritz has the right idea on this. Without looking, I think the sticker on the door jam is 37 psi

for this car with staggered wheels and tires.

 

[Snicklefritz]

Yeah, had the same issue this winter. Pressure should be between 36-38 psi for all tires without triggering a

warning. Snicklefritz has the right idea on this. Without looking, I think the sticker on the door jam is 37 psi

for this car with staggered wheels and tires.

37 psi is a perfect average. The door card for 19" staggered says 38 psi front 36 psi rear. Interestingly, the 2.0L door card says 36 psi front 39 psi rear.

 

[Buzzman12]

Thanks for the replies everyone.
Next time I get the car out (it's still winter here, so that may be a week or two), I'll raise them all up as per your suggestions.
Oddly enough, I don't ever recall the tire pressures reading higher than 35 since I got the car. I've been running it at 34 since I bought it.

 

[Snicklefritz]

I've been running it at 34 since I bought it.

I can't speak for your car, but mine indicate c. 2 psi low. I trust the race spec tire gauge I have to be the most accurate of the two, and it indicates a couple psi higher than what shows on the TPMS. So, you start out at actual 36 psi, add on a couple or three more with warmed up tires, and that means you are right in recommended range.

 

[Thomby]

I don't ever recall the tire pressures reading higher than 35 since I got the car. I've been running it at 34 since I bought it.

I'll echo the 38 front / 36 rear for staggered 19s. The TPMS allows a good bit of leeway before triggering (I've read 20-25%, so maybe 28-30 psi), but then need a higher pressure to clear the alert.

mine indicate c. 2 psi low
you start out at actual 36 psi, add on a couple or three more with warmed up tires, and that means you are right in recommended range

I believe the door card numbers are cold psi, so the expectation is at operating temp you'll be a couple psi higher. The TPMS display numbers are already smoothed so they aren't jumping around; I wonder if they're also biased slightly to keep from worrying people with warm numbers higher than the cold spec.

I wouldn't sweat about a couple psi though, just the weather will swing them around by more than that.

 

[Snicklefritz]

I'll echo the 38 front / 36 rear for staggered 19s. The TPMS allows a good bit of leeway before triggering (I've read 20-25%, so maybe 28-30 psi), but then need a higher pressure to clear the alert.


I believe the door card numbers are cold psi, so the expectation is at operating temp you'll be a couple psi higher. The TPMS display numbers are already smoothed so they aren't jumping around; I wonder if they're also biased slightly to keep from worrying people with warm numbers higher than the cold spec.

I wouldn't sweat about a couple psi though, just the weather will swing them around by more than that.

Yes, of course, cold psi. And I agree that having TPMS read a tad low is deliberate, probably for the reason you suggested.

Since having a TPMS, I have become quite obsessed with trying to exactly match the door card cold. Ha hah. This winter I've ignored that obsession, because the weather swings too variably. We go from 60F all the way down to the low 20s this winter. Trying to match the cold and mild swings would be too much obsession. I'll wait till spring is here before I get out the Longacre.

 

[Ah GetFd]

Where you're running those pressures is close to where the low pressure warning is set.

38 psi all round is right the pressure here when its cold. 20C.

That should have the tyres run at around 41 psi all day every day.

That's what it is at the factory. That's what it is with new tyres. The door plaque on Australian cars says 38 psi.

When I had a puncture the low pressure alarm came on at 32 psi.

I await idiot out of Qld to offer his 7 years tyre technician training that hasn't fixed his steering whirring issue.

 

[Buzzman12]

Yes, of course, cold psi. And I agree that having TPMS read a tad low is deliberate, probably for the reason you suggested.

Since having a TPMS, I have become quite obsessed with trying to exactly match the door card cold. Ha hah. This winter I've ignored that obsession, because the weather swings too variably. We go from 60F all the way down to the low 20s this winter. Trying to match the cold and mild swings would be too much obsession. I'll wait till spring is here before I get out the Longacre.

Ya, I don't obsess so much anymore about a couple of PSI here and there.
Here in my part of Canada, we can go from -28C in the winter, to +32C or higher in the summer (that's -18F to +90F).
It's impossible to keep them exactly the same all year round.
Thanks again for all the input.
Next week it is going to warm up, finally. It is currently minus 12C (10F).
I will take the car out of the garage and reset the pressures.

 

[Snicklefritz]

I couldn't resist. Yesterday I got out the compressor to blow dust out of the wheels and diffuser. But it was adhered to the "patina" of a week's worth of air grime, so I turned the compressor to psi duty instead. My door card recommendations are perfectly cold psi - until the ambient temperature goes back down that is. It won't be going up consistently for another couple of months. Then I will have to let air out from time to time to maintain recommended psi.