Brake lights and engine brake

[T680]

Mine does too, it doesn't botter me though... With the very light weights I carry..don't need it much at all..

Last cab & engine update was on Ian '16 didn't notice it before that, can be seen at nite only,of course by one self

Although did asked dealer not touch the cab update, they had too, in order to be allowed to do engine one.????..so I was told