These instructions apply to the DS 4 Mk2 2021-Present.
For other models, please choose your vehicle here.
If the tyre-pressure warning has come on in your DS 4 (2021–present) after you’ve adjusted the pressures or changed a wheel, you reset it from the touchscreen. The DS 4 uses sensors in the wheels, so it re-initialises the stored pressures when you confirm in the menu. The warning isn’t a fault on its own — it means the pressures the car last saved no longer match what the wheels are reporting, which is exactly what you’d expect after a top-up, a wheel swap, or a cold night. Setting the tyres correctly and running the reinitialisation clears it.
How the DS 4’s System Works
This is a direct system: each wheel carries its own sensor that measures the actual pressure and sends it to the car. When you inflate the tyres and then choose Reinitialisation, you’re telling the car to treat the pressures it’s reading right now as the correct reference. From then on it watches for any tyre that drifts below that baseline. Because the readings come from inside the wheels, a sensor with a flat battery can hold the warning on even when the pressures are all correct — something an indirect system never does.
When to Reset
- After checking or adjusting the tyre pressures.
- After changing wheels or tyres, or fitting winter wheels.
Getting Ready
- Set all four tyres cold to the placard figure in the driver’s door shut before you reinitialise.
- Use the pressure column that matches your load — a fully loaded car often needs higher pressures.
- Include the spare or space-saver if your car carries a monitored one.
- Switch the ignition on with the car parked and level before opening the menu.
- Refit the valve caps — on a direct system the valve is part of the sensor.
Resetting the System
- Park level and set all four tyres to the correct cold pressures (placard in the driver’s door shut).
- Switch the ignition on with the car stationary.
- On the touchscreen, open ‘Parameters’ > ‘Vehicle’ > ‘Security’.
- Select ‘Configuration of the tyre pressure’ > ‘Reinitialisation’.
- A confirmation message appears — the system is reset.
If the Warning Stays On
- Recheck every tyre — one below spec keeps the warning on, and the lowest corner is easy to overlook.
- Confirm the reinitialisation in the menu — backing out before the confirmation leaves the old reference in place.
- Drive a few minutes so the sensors wake and report their pressures.
- Allow for a cold morning — pressures fall with temperature, so a tyre set on a warm day can read low overnight.
- Suspect a slow puncture if one corner keeps dropping after you’ve set it; have it checked for a nail or a leaking valve.
- Still showing with correct pressures? A sensor battery may be flat — these are sealed and renewed with the tyre. Look up any stored code on autodtcs.com.
What Happens Next
Once the reinitialisation is confirmed and the pressures are correct, the warning clears and stays off for the journey and beyond. It only returns if a tyre genuinely loses pressure, so treat a fresh warning as a prompt to check the tyres rather than a nuisance. There’s no need to repeat the procedure; the car keeps monitoring against the reference you just stored every time you drive.
Frequently Asked Questions
How do I reset the tyre pressure light on a DS 4?
Set the pressures, then on the touchscreen go Parameters > Vehicle > Security > Configuration of the tyre pressure > Reinitialisation. Do it with the ignition on and the car stationary, straight after inflating the tyres cold. Wait for the confirmation message, then drive off — the warning clears once the sensors agree with the new reference.
Does the DS 4 have sensors in the wheels?
Yes — it’s a direct system, so a sensor with a flat battery can keep the warning on. Each wheel has its own sensor measuring the actual pressure, which is why the car can react precisely to a single soft tyre. The trade-off is that an ageing sensor battery can hold the light on even when all four pressures are correct.
Why won’t the warning clear?
Usually a tyre is still below spec, or the reinitialisation wasn’t confirmed. Recheck all four against the placard, make sure you saw the confirmation message rather than backing out of the menu, and drive a few minutes so the sensors report. If it persists with everything correct, suspect a slow puncture or a tired sensor battery.
Does cold weather set off the warning?
Yes. Air contracts as it cools, so a tyre set correctly on a warm afternoon can read a few psi low on a cold morning and trip the light. Top the tyres back up to the placard figure when they’re cold, run the reinitialisation and drive on. If it keeps happening on one corner only, have that tyre checked for a slow leak.
Do I need a tool?
No for a normal reset; a tool is only needed if a sensor is replaced.
Do I need to reset it after fitting winter wheels?
Yes. Swapping to a winter set changes the wheels the sensors are reporting from, so set each tyre to the correct cold pressure and run the reinitialisation once they’re fitted. If the winter wheels have their own sensors, the car learns them as you drive; if it can’t detect them, that’s when a sensor may need registering.
If the warning came on with other lights, decode the code on autodtcs.com.
Independent guide — not affiliated with DS. Always follow your official service manual and safety precautions. Read our full disclaimer.