These instructions apply to the BMW 2 Series Mk2 (G42) 2021-present.
For other models, please choose your vehicle here.
After adjusting pressures, rotating wheels or fitting a different set on your BMW 2 Series (G42, 2021–present), you tell the system to learn the new values as its reference. BMW does this through the iDrive screen — no tool required. The tyre-pressure warning on its own is not a fault: it means the current pressures no longer agree with the reference the car holds, usually after the air has cooled, you’ve topped a tyre up, or you’ve changed wheels. Performing the reset simply refreshes that reference to match what is now in the tyres.
How It Works on This Model
The G42 monitors tyre pressure continuously and compares it against a stored reference set. When you choose Reset in iDrive and drive off, it takes the pressures currently in the tyres as the new ‘correct’ baseline and watches for any drop away from it. That is why the sequence matters: it memorises whatever it finds at reset time, so the tyres must be at the right pressures before you confirm, not after.
Set the Pressures First
Inflate all four tyres cold to the figures on the door-pillar label, then reset. The system memorises whatever is in the tyres at reset time, so get them right first.
- Check pressures cold, before driving or after the car has stood — warm tyres over-read.
- Use the door-pillar label figures, not the maximum printed on the tyre.
- Set all four corners, and use the higher figure if the label lists one for a full load.
- Switch the ignition on so iDrive is fully awake before you open the menus.
Resetting via iDrive
- Set the correct cold pressures and switch the ignition on.
- Open iDrive → Vehicle / Vehicle settings → Tyre Pressure Monitor.
- Select ‘Reset’ / ‘Perform Reset’ and confirm.
- Drive off — the system establishes the new baseline as you go.
If the Light Stays On
- Recheck every tyre — one odd corner is enough to trigger it.
- Always reset after inflating so the reference matches the new pressures.
- Complete a short drive after confirming — the baseline settles once the car is moving.
- A genuine slow puncture keeps the warning on — inspect for a nail or leaking valve before resetting again.
- A cold overnight can drop pressures enough to re-trigger it — top up when cold and reset.
- If it returns immediately with correct pressures on every corner, a sensor with a flat internal battery is possible and worth checking.
What to Expect After
Once you confirm the reset and drive away, the warning clears and stays off for the trip and beyond, as long as the pressures hold. It should only reappear if a tyre genuinely loses air, which is the alert doing its job.
Frequently Asked Questions
How do I reset the tyre pressure light on a BMW 2 Series?
Set the pressures, then in iDrive go to Vehicle → Tyre Pressure Monitor → Reset and confirm; drive to complete it.
Is a tool needed?
No — the G42 relearns through iDrive and driving. You only need a workshop tool if a pressure sensor is replaced and has to be registered to the car; a routine reset after inflating or a wheel swap is entirely a screen-and-drive job.
Why did it light up in cold weather?
Cold air lowers pressure; top up to the label figure and reset. A tyre set on a mild day can read a few psi low after a frosty night, which is enough to trip the warning even though nothing is leaking. Re-inflate when the tyres are cold and run the reset.
It lit after a wheel swap — normal?
Yes — reset so the new wheels become the reference. Any change of wheels or tyres alters what the system should treat as correct, so after fitting winter wheels or a fresh set you simply set the pressures and run the iDrive reset to establish the new baseline.
Do I have to be stationary to start the reset?
Set the pressures and select Reset with the ignition on and the car stopped, then confirm. The learning itself happens once you drive away at normal road speeds, so you begin the process parked and let a short journey finish it.
Can one under-inflated tyre trigger it even if the others are fine?
Yes. The system flags any corner that falls away from the stored reference, so a single tyre a few psi low is enough to bring the warning up. Check and correct all four before resetting, rather than assuming only the flagged corner needs air.
Got a TPMS sensor fault code rather than a low-pressure warning? Look it up on autodtcs.com. To clear a service reminder, see our 2 Series service reset.
Independent guide — not affiliated with BMW. Always follow your official service manual and safety precautions. Read our full disclaimer.