The runflat pressure warning light on my dashboard will not go out. on 2004 Mini Cooper

Even though the pressure on all the tyres is correct and I have switched this light off before, I have done everything it says in the handbook but it doesn't work is this electrical an fault

Asked by for the 2004 Mini Cooper
Your year MINI uses the ABS system to detect a flat tire. So if using the reset button is not working you may have an ABS fault.