NHTSA Complaint #11195850 — 2015 CHEVROLET IMPALA

I WAS DRIVING ON 2-LANE ROAD AND THE RIGHT SIDE DETECTION SYSTEM (SDS) INDICATOR LIGHT IN THE SIDE MIRROR CAME ON EVEN WHEN THERE WERE NO CARS OR OBJECTS NEXT TO ME. THE INDICATOR LIGHT WOULD NOT TURN OFF EVEN WHEN THE CAR WAS OFF AND PARKED. NO WARNING MESSAGES CAME UP WHEN THE CAR WAS STARTED. I TURNED THE SDS AND PARK ASSIST OFF IN SETTINGS, BUT THE LIGHT REMAINED ON. I REMOVED FUSE 62 (REAR CAMERA/PARK ASSIST/SIDE BLIND ZONE ALERT) IN THE ENGINE COMPARTMENT FUSE BLOCK TO GET THE LIGHT OFF. I REINSTALLED THE FUSE AND THE LIGHT REMAINED OFF UNTIL THE NEXT TIME I STARTED THE CAR AND IT TURNED BACK ON AND STAYED ON. A FEW DAYS LATER I GOT A WARNING MESSAGE TO SERVICE THE SDS WHEN I STARTED MY CAR. THE BLIND ZONE ALERT SYSTEM INDICATOR LIGHTS DID NOT COME ON AND THE SYSTEM DID NOT WORK AT ALL EVEN WHEN VEHICLES WERE IN MY BLIND SPOT ON THE LEFT OR RIGHT SIDE OF MY CAR. I RECEIVED 3 WARNING MESSAGES WHEN I STARTED MY CAR. THEY SAID TO SERVICE FRONT CAMERA, PARK ASSIST AND SDS. FUSE 62 WAS BLOWN. I REPLACED THE FUSE AND IT IMMEDIATELY BLEW AGAIN. NONE OF THE DRIVER ASSIST SYSTEMS WORKED INCLUDING THE SIDE BLIND ZONE ALERT, LANE DEPARTURE WARNING, FORWARD COLLISION ALERT SYSTEM, PARK ASSIST AND REAR CROSS-TRAFFIC ALERT. I TOOK MY CAR TO LAKE GENEVA CHEVROLET DEALERSHIP. THEY DIAGNOSED THE PROBLEM, WHICH REQUIRED REMOVING THE REAR BUMPER TO CHECK THE 2 SBZA MODULES MOUNTED ON THE INSIDE CORNERS OF THE BUMPER. THEY DISCOVERED CORROSION IN BOTH MODULES DUE TO WATER INTRUSION, WHICH SHORTED OUT THE ELECTRONICS. THEY SAID IT WAS CAUSED BY WATER ON THE MODULE SEAM GETTING INTO IT BY FREEZE THAW. THEY HAD TO REPLACE BOTH MODULES FOR A TOTAL COST INCLUDING LABOR OF $1172. THEY STATED THAT IT WILL HAPPEN AGAIN SINCE IT IS THE SAME MODULE DESIGN AND DUE TO THE MOUNTING LOCATION. CHEVY HAS KNOW ABOUT THIS SINCE BEFORE 5-2017 WHEN THEY ISSUED TSB# 17-NA-154 ABOUT EXACT PROBLEM.