These instructions apply to the Volvo XC40 Mk1 (536) 2017-present.
For other models, please choose your vehicle here.
After adjusting pressures or changing a wheel on your Volvo XC40 (536, 2017–present), you store the new values as the system’s reference from the centre touchscreen. No tool needed. The tyre-pressure warning that leads you here is not, in itself, a sign of a fault — it means the car is now reading pressures that differ from the last set it stored as ‘correct’. In most cases that is a genuinely soft tyre, a cold morning, or a wheel that has been changed without re-storing. Set the pressures properly, save a fresh reference, and the warning clears.
How the System Works on This Model
The XC40 detects a soft tyre by comparing how quickly each wheel turns, using the ABS wheel-speed sensors rather than a transmitter inside each wheel. A tyre losing air has a slightly smaller rolling radius and so spins fractionally faster than the others, which the car picks up. Because the monitor works by comparison, it needs a stored reference of what ‘correct’ looks like — exactly what ‘Store tyre pressures’ saves. That is also why the routine finishes with a short drive: the system needs a few minutes of rolling data to settle the new baseline.
Before You Begin
- Check pressures cold — first thing, or after the car has stood a few hours, since warm tyres read high and store a false reference.
- Set all four to the figures on the driver’s door-pillar label, using the laden value when carrying a full load.
- Confirm with your own gauge any tyre a garage has inflated.
- If a space-saver or a different wheel is fitted, set it to its own correct pressure first.
- Plan to start the engine and have a safe stretch of road for the drive cycle.
Storing the Pressures
- With the engine off, adjust the tyre pressures to the label values.
- Start the engine.
- On the centre touchscreen, select ‘Car status’ → ‘Tyre pressure’ → ‘Store tyre pressures’ and press OK.
- Drive for about 10 minutes, exceeding 35 km/h (22 mph) where safe — the system is then reset.
If the Light Stays On
- Recheck every tyre with a gauge — one low corner is enough to trigger it, and a 4–5 PSI drop is hard to spot by eye.
- Complete the drive cycle. The reset needs the short run above 35 km/h; the warning may not clear until enough rolling data has been gathered.
- Store again after inflating or a wheel swap so the reference matches what is actually in the tyres now.
- Cold morning? A sharp temperature drop can shed a couple of PSI — top up to the label figure and re-store.
- Space-saver fitted? A narrow spare rolls at a different rate and can keep the warning lit until the full-size wheel is back on.
- Same corner falling repeatedly? Treat it as a possible slow puncture and inspect the tyre and valve before storing over it.
- If the pressures are correct and it still won’t clear, a wheel-speed/ABS sensor fault can upset the monitor and is worth scanning for.
After the Reset
Once the pressures are stored and the short drive is done, the warning should go out and stay out for the journey. The car now watches against the new reference, so it will only warn again if a tyre genuinely drifts from where you set it. If the light returns within a day or two on the same wheel, assume a real leak rather than a system quirk and have the tyre checked.
Frequently Asked Questions
How do I reset the tyre pressure light on a Volvo XC40?
Set all four tyres cold to the door-pillar figures, start the engine, then on the touchscreen go to Car status → Tyre pressure → Store tyre pressures and press OK. Finish by driving for about ten minutes above 35 km/h where safe, which lets the system lock in the new baseline and clear the light.
Is a tool needed?
No — the XC40 stores the reference itself through the touchscreen and a short drive. There is nothing to plug in and no valve procedure. The only kit worth having is an accurate gauge and a source of air, so the pressures you save as ‘correct’ are genuinely at the label figure before you store them.
Why did it light up in cold weather?
Air contracts as it cools, so pressures fall by roughly 1–2 PSI for every 5 °C drop. A cold night can push a borderline tyre under the threshold. Top every tyre back to the label figure while they are cold, re-store, and the warning should stay off unless a tyre is actually leaking.
It lit after a wheel change — normal?
Yes. Changing, rotating or replacing a wheel alters what the system sees, so it flags the difference. Set the pressures on the wheels now fitted and run the store so the new arrangement becomes the reference. The same applies after a puncture repair or when switching between summer and winter wheel sets.
Do I have to store again after rotating the tyres?
It is sensible to. Even at identical pressures, moving wheels between axles changes the rolling pattern the system has learned, so storing a fresh reference afterwards keeps it accurate and avoids a nuisance warning a few miles later. It takes only a moment through the same Car status menu.
Can I still drive with the warning showing?
You can drive, but check the pressures at the first safe opportunity. The light means at least one tyre may be low, and running underinflated affects handling, braking and tyre wear. If a tyre is clearly deflating or the car pulls or feels unstable, stop and inspect it rather than pressing on.
Got a TPMS fault code rather than a low-pressure warning? Look it up on autodtcs.com. To clear a service reminder, see our XC40 service reset.
Independent guide — not affiliated with Volvo. Always follow your official service manual and safety precautions. Read our full disclaimer.