SIG To book your vehicle service online, please click on the button below. Lex Driver Portal In the event of an accident or incident, Please Click to Call the dedicated SIG Incident Support Line Please do not log via the Lex Driver Portal For MOT, Tyres, Batteries & Exhaust Support Please Visit Planning on Travelling Abroad?Please Visit – Lex Autolease Driver Portal - European travel documents or alternatively, please contact the SIG helpdesk For any other queries, to contact your dedicated SIG Helpdesk, please click to call Powered by vLink