Tyre Deflation Warning

[Hicardo]

Hello Folks, when i recently had all season tyres fitted, i think the pressures may have been set a tad low, so the other day the Deflation Warning System was triggered.  Ive inflated to correct pressure and checked several times, and there doesnt seem to be any puncture.  My question is, when you recalibrate, i beleive you have to drive the car for a while for the recalibration to 'finish'.  I didnt do so, and it the Deflation Warning went off again.  I will do the proper procedure again today and see what happens.  Any other things i should be bearing in mind?

[Marco1979]

Sometimes you need to do the recalibration twice (e.g. after changing from winter to summer tyres). As if it can only correct a slight difference in one go.
Just do another recalibration when it pops up again.
The system is simple and effective, but can be triggered also when you drive through a pothole or when a bit of gravel sticks to the wheel.

[embee]

One thing I've seen is that the tyre pressures change quite significantly with a bit of sunshine on them. I had this when I set the pressures when the sun had been on one side of the car for a while,  and the warning came up.
I now try to set pressures either first thing in the morning or in the evening without sunshine effect.

[Downsizer]

I have found it can take a few journeys for a replacement tyre to bed in, which can change the diameter and/or pressure. This may require additional recalibrations.

[Tombola]

Hello Folks, when i recently had all season tyres fitted, i think the pressures may have been set a tad low, so the other day the Deflation Warning System was triggered.  Ive inflated to correct pressure and checked several times, and there doesnt seem to be any puncture.  My question is, when you recalibrate, i beleive you have to drive the car for a while for the recalibration to 'finish'.  I didnt do so, and it the Deflation Warning went off again.  I will do the proper procedure again today and see what happens.  Any other things i should be bearing in mind?

If my tyres have lost pressure I always overinflate by 4/5 PSI then reduce to the correct pressure, I don't just top them back up to the correct pressure, never had a TPMS warning

[ColinB]

I think it's important to get up to motorway speeds during the calibration period so the system sees the full operational envelope. It's also not clear from the handbook whether the recommended 30 mins driving has to be done in one session or can be interrupted.

[Downsizer]

It can be interrupted.

[Hicardo]

Thanks guys, just recalibrated mine, and all seems to have gone well, drove for nearly two hours (luckily for a purpose!) and had some dual carriageway at 60mph or thereabouts.  No warning lights came on during that time. Touch wood, we're sorted.  Cheers!