Tire pressure warning calibration?

[Stellavator]

There has to be a way to reset at your chosen pressure. I suspect these odd and different trigger points have to do with what the tire pressures were when the set point was initially calibrated at the factory. Has to be a way to recalibrate.

 

[MentalNomad]

It's possible that the system is responding to rate of change, not just the pressure...so a tire that slowly and stably fell to 39 may have no warning, while a tire that quickly fell from 42 to 39 might trigger the alert.

 

[stonelance]

I found that once you get a warning it doesn't go away even if the pressure goes back up. I'm guessing it requires power down and back up, or hte car being "off" for some amount of time to reset?

 

[EVnut]

Just adding my experience most of a year later.

SAME DANG THING as others are reporting. The weather has cooled off tremendously (like 40 degrees cooler than it was two weeks ago!) and my pressure display shows three tires at 39, and one at 40. It flagged the 40 and one of the 39's as "too low."

OK, whatever. So I aired them up to 45 all the way around. The warning down on the pressure card has gone away, but I still have the yellow flat tire symbol above the speedo, and still have the (!) in red in the upper row near the dashcam indicator. I've driven at speed, parked the car for hours. Still there. Perhaps I'll go and manually shut it down to see if that fixes it.

But wow... low pressure warning at 40 PSI when the door jamb calls for 42??

 

[BioSehnsucht]

I've found that parking the car and walking away for not very long works to clear the (!) and flat tire symbols. Last time I aired up on the way to lunch, ate lunch, came back out and it was cleared.

Very odd if it isn't clearing after several hours.

 

[EVnut]

I'm not sure *when* it went away today, but for the evening beer run, the display was finally clear. All good now.

 

[The805]

I experienced the same issue earlier this week. I was still getting warning messages after I aired the tires from 39/40 lbs to 44 lbs. I reset the MCU and it cleared the warnings.