My HUD works but only If I go into settings and units rather than toggle the hud button, strangely enough when I asked the sales rep in Leeds,(where I bought the car from) about changing the hud he demonstrated it by going into settings rather than toggling the switch. Still would like to know if this was changed on 2016 models together with the other updates. The sales reps ( mentioned in previous post) from Lexus Twickenham did not seem to think there was anything wrong with it.