DRIVING AT NIGHT IN THE RAIN ON THE HIGHWAY 60 MPH. LOST POWER STEERING, BRAKES, FORWARD WARNING COLLISION AND OTHER CONTROLS. LOST CONTROL OF THE VEHICLE CRASH INTO THE EMBANKMENT. ALMOST ROLLED THE VEHICLE. DEALER STATED STEERING MODULAR FAILED AND REPLACED STEERING RACK AND PINON SYSTEM. DEALER STATED 12 ACTIVE COMPUTER CODES SHUT DOWN ALL OF ABOVE FUNCTIONS. DEALER STATED COMPUTER STEERING COMPUTER MODULE FAILED CAUSING STEERING AND OTHER FUNCTIONS TO FAIL.