R U sure its not the tail/parking/running lamps? Does your dash icon distinguish between brake lamps and the others?
'03 525i Sapphire Blu/Grey, SP, Nav
'03 530i Sterling Gray/Blk, SP
'02 525it Titanium Silver/Grey, SP
'02 325it Orient Blu/Grey, SP, Nav
'01 M3 Laguna Seca Blu/Grey
'95 M3 Cosmos Blk/Blk