My electric parking brake is broke on 06 750 LI.....Will this have an impact and cause your transmission to slip or slam hard when you put in reverse?....My transmission slips into park when I put in reverse ? I doubt it....just asking....My parking brake is broke....so is my transmission......my transmission is sporadic when it slips and bangs into reverse....Transmission broke first so I doubt if it is the parking brake!!!,,,,AMM