My new Jazz is first car with the Honda tyre deflation system. I am always in favour of anything that adds to safety. Changed front left for spare (@1585mls) so that all tyres are run-in. About 1 mile later the deflation warning came on, no problem with pressures just the difference caused by the new tyre. Re set the system. Went round longish left hand turn off dual carriageway, about 1 mile later deflation warning came on, checked tyres visually at roadside, no problem. Reset the system. Checked pressure at home, no problem. Difference caused by long turn compressing right side tyres? Reports form other Jazz owners of system actuating after leaving multi-storey car parks with long spiral exits. Is it too sensitive?