[X5 M50i '21]

I was getting low tire pressure alerts so I added air to the requested amount of 40 lbs up front and 42 in the rear. The BMW monitor still says 35 up front and 37 in the rear after several hundred miles of driving and several days after the fill up.

This is on a 2019 M850i convertible.

Any way to force it to recalibrate?

[Al Pinã]

Originally Posted by X5 M50i '21

I was getting low tire pressure alerts so I added air to the requested amount of 40 lbs up front and 42 in the rear. The BMW monitor still says 35 up front and 37 in the rear after several hundred miles of driving and several days after the fill up.

This is on a 2019 M850i convertible.

Any way to force it to recalibrate?

Vehicle status/Tire pressure monitor/Perform Reset

[bloozemanAZ]

Originally Posted by ALPINA_DREAMS

Vehicle status/Tire pressure monitor/Perform Reset

Yes, always have to do that with my wife's 2017 with iDrive 6. However, so far with the 2020 M850i the two times I had to add air it automatically registered on the first drive without forcing the reset.

[Qsilver7]

Originally Posted by X5 M50i '21

I was getting low tire pressure alerts so I added air to the requested amount of 40 lbs up front and 42 in the rear. The BMW monitor still says 35 up front and 37 in the rear after several hundred miles of driving and several days after the fill up.

This is on a 2019 M850i convertible.

Any way to force it to recalibrate?

Your owners manual should have instructions on how to reset/recalibrate the TPMS after getting a warning to add air or doing a wheel/tire change. The system needs to be reset to establish a new “baseline”.

If you don’t want to pull out the physical manual...you can use the manual uploaded into iDrive...it has a search feature which should help find the info very quickly.

[Al Pinã]

Originally Posted by Qsilver7

Your owners manual should have instructions on how to reset/recalibrate the TPMS after getting a warning to add air or doing a wheel/tire change. The system needs to be reset to establish a new "baseline".

If you don't want to pull out the physical manual...you can use the manual uploaded into iDrive...it has a search feature which should help find the info very quickly.

You must've missed my response.. why over complicate things?

[Ozzie8]

Reset is automatic on 8 series - at least I have no manual reset step on mine.

[bloozemanAZ]

Originally Posted by Ozzie8

Reset is automatic on 8 series - at least I have no manual reset step on mine.

Exactly my experience as posted vs my wife's 2017 X5 with iDrive 6 that requires the TPM reset process. Sounds like the OP has some sort of issue.