Managed to reset via the steering wheel controls.
On another note, about to renew the rear tyres but came across a Pirelli P Zero available in the same size 285/35/20 Y but with a higher load rating (104) which is reinforced but not full run flat rather than standard load rating (100). Is there any merit or downside in switching to 104 or better to keep standard 100? The price difference between the 2 versions of P Zero is negligible.