had the spare wheel on for less than a day(17'').....OZ's are 18's

today i replaced the wheel but the tyre pressure warning light has stayed on.

cheked all tyres and they're fine!

any ideas?

thanks Mick:thumbup:

Did you reset the TPM after you changed wheels ? If you change the pressures you have to reset it/teach it the new values IIRC. Also maybe the fact that you put a 17" rim on it has detected a change, the TPM works with your ABS AFAIK.

Hopefully somone will give a better explaination, but for the mean time Press & Hold the TPM button (making sure the Pressure are okay)...Btw You'll need to Reset it again when the other wheel goes back on.

As above, reset by holding the tpm button till it beeps. Word of warning, when swmbo changed a tyre, due to puncture, reset all hunky dory, about 200 mile later, and whilst traveling at the damned thing went off again. stopped car all tyres ok. Read later that it was a feature that system re-checks itself after xxx miles

Read later that it was a feature that system re-checks itself after xxx miles

I didn't know that, You learn something new every day

sorted lads....thanks