A WEEK PRIOR MY VSC TRAC AND VSC OFF LIGHTS CAME ON BUT NOTHING ELSE OCCURRED. NOW OUT OF NOWHERE MY VEHICLE WILL MAKE AN AUDIBLE SOUND AND START RUMBLING AND PULLING TO THE RIGHT AND SLOWING BUT WON'T ALLOW ME TO BRAKE. THIS CAN LAST ANYWHERE FROM 10 SECONDS TO 30 SECONDS. SOMETIMES THE PICTURE OF THE CAR WITH THE SKID MARKS WILL LIGHT UP (EVEN ON DRY ROADS) OTHER TIMES THE ABS LIGHT WILL COME ON. ONCE THE BEEPING AND VIBRATIONS STOP, THE VSC TRAC AND VSC OFF LIGHTS REMAIN ON UNTIL I TURN THE CAR OFF. I DRIVE 30 MILES EACH WAY TO WORK DAILY. THIS IS VERY DANGEROUS AND SCARY AS I HAVE NO IDEA WHAT TRIGGERS THE EPISODES. *TR