Because of the nature of the problem, and the fact that that it is intermittent, it is difficult to say... Done a 400 mile round trip without any problems, had a problem the very next day, 'rebooted' and has been OK since. That was the reason for the original message, how safe would you feel if it keeps happening at awkward places like junctions and traffic lights!!! Unlike "CE08LDB" it never happens whilst on the move... only when setting off from a standstill