Brake failsafe program warning light came on and electrical acting funny, WHY??? on 1999 BMW 740i

during opperation interior lighting and tilt steering activate on their own. like it is possessed

Asked by for the 1999 BMW 740i
seek a diag and est from a good german auth mech
1 more answer
Could be the start of a low-power condition caused by a failing alternator or an ECM problem. Have alternator tested.