NHTSA Complaint #10423124 — 2007 CHEVROLET SUBURBAN

WHEN TEST DRIVING THE SUBURBAN, THE SERVICE STABILITRAC AND SERVICE TRACTION CONTROL LIGHTS CAME ON. WE LOOKED IN THE OWNER'S MANUAL AND IT SAID TO TURN THE VEHICLE OFF FOR FIFTEEN SECONDS AND RESTART. IF THE LIGHTS DID NOT REAPPEAR THERE WAS NOT A PROBLEM SO WE DID NOT SAY ANYTHING TO THE DEALERSHIP. A FEW DAYS AFTER TAKING DELIVERY OF THE VEHICLE THE LIGHTS BEGAN TO COME ON REPEATEDLY. THE DEALERSHIP REPLACED A SENSOR THAT HAD TO DO WITH THE STEERING. EVERYTHING APPEARED TO BE NORMAL FOR ABOUT A MONTH, BUT THEN REAL PROBLEMS BEGAN TO HAPPEN. THE FIRST ADVERSE OCCURRENCE HAPPENED WHEN I WAS DRIVING AT A STEADY SPEED, GOING STRAIGHT, AT APPROXIMATELY 25 MPH. THE LEFT FRONT BRAKE ENGAGED HARSHLY TWO TIMES IN RAPID SUCCESSION, THEN THE SERVICE STABILITRAC AND SERVICE TRACTION CONTROL LIGHTS CAME ON. I DID NOT TOUCH THE BRAKE AND WAS NOT ACCELERATING. I TOOK IT TO A CHEVROLET DEALERSHIP THE FOLLOWING WEEK AND THEY HAD IT FOR THREE DAYS TRYING TO ISOLATE THE PROBLEM. THEY EVEN SENT IT HOME WITH A SHOP FOREMAN OVERNIGHT. HOWEVER, THEY WERE NOT ABLE TO FIND ANY PROBLEM WITH EITHER OF THE SYSTEMS. AS I WAS LEAVING THEIR LOT BOTH LIGHTS CAME ON AGAIN, BUT WITHOUT THE HARSH BRAKING. TWO DAYS LATER (TODAY) MY FAMILY AND I WERE BEGINNING TO ENTER AN ENTRANCE RAMP TO THE HIGHWAY (AGAIN AT ABOUT 25-30 MPH) AND THE LEFT FRONT BRAKE ENGAGED THREE TIMES IN RAPID SUCCESSION HARD ENOUGH TO MAKE THE TIRE SQUEAL EACH TIME. A CAR WAS DIRECTLY BEHIND ME AND SKIDDED TO KEEP FROM RUNNING INTO THE REAR END OF THE SUBURBAN. MY WIFE AND I AND FOUR CHILDREN WERE IN THE VEHICLE. NOW I AM AFRAID TO EVEN DRIVE IT. IF THIS HAPPENED AT HIGHWAY SPEEDS THE VEHICLE WOULD PROBABLY OVERTURN. I WILL BE CALLING THE CHEVROLET DEALERSHIP WHEN THEY OPEN IN THE MORNING. *TR