Ever since the day we collected my wife's Citigo the tyre pressure warning light has been on. I have checked the pressures and they are fine. .?

Hi I take it you have tried the reset button ?,which is near the gearstick.if you search on here there is one other person that's had this problem,called Smudger64 this might help you .

I can't get a link to it though it's either me or my iPad that's doing some wrong .[emoji4]

Hope this helps.

The tyre pressure monitor has no idea what the actual tyre pressures are, it simply monitors the rotational differences on all four corners and triggers the fault if these become different to the stored values. If you are happy that the pressures are correct, then press and hold the TPM button until the light goes out as this will reset the stored values.