Hi, If only front passenger seat, I think the weight of a mobile phone was enough to set it off. The person who showed me how to unplug was the main dealer Master Technician who never mentioned airbags but who was nothing but professional so I'd be surprised if he overlooked a potential airbag link. Anyway, I've not switched anything off, was just shown how to do so. I said I'd monitor the sensitivity when getting the car back ( it's having the gearbox out).