These instructions apply to the DS 9 Mk1 (X) 2021-Present. For other models, please choose your vehicle here.
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If the tyre-pressure warning has come on in your DS 9 (2021–present) after you’ve adjusted the pressures or changed a wheel, you reset it from the touchscreen. The DS 9 uses sensors in the wheels, so it re-initialises the stored pressures when you confirm in the menu.
When to Reset
- After checking or adjusting the tyre pressures.
- After changing wheels or tyres, or fitting winter wheels.
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.
- On the touchscreen, open the ‘Vehicle setting’ menu.
- Press ‘Under-inflation initialisation’, then select YES.
- A confirmation message appears — the system is reset.
If the Warning Stays On
- Recheck every tyre — one below spec keeps the warning on.
- Confirm the initialisation in the menu — backing out leaves it unchanged.
- Drive a few minutes so the sensors report.
- Still showing with correct pressures? A sensor may have a flat battery — look up the code on autodtcs.com.
Frequently Asked Questions
How do I reset the tyre pressure light on a DS 9?
Set the pressures, then on the touchscreen go Vehicle setting > Under-inflation initialisation > YES.
Does the DS 9 have sensors in the wheels?
Yes — it’s a direct system, so a sensor with a flat battery can keep the warning on.
Why won’t the warning clear?
Usually a tyre still below spec, or the initialisation wasn’t confirmed.
Do I need a tool?
No for a normal reset; a tool is only needed if a sensor is replaced.
If the warning came on with other lights, decode the code on autodtcs.com.
Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.
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