Madly soled it in a random way.... Ive got a wireless charger/holder for my phone... and if I put my phone in it first - it wont let me start the car (no lights even come on)... and it locks the seat belt tensioner...
If I dont put it in the holder first - then I've not had it occur once...
Must be a massive power drain causing some sort of issue...however if phone is plugged in via a normal cable it's fine....proper random...!