NHTSA Complaint #10970431 — 2016 CHEVROLET SILVERADO 1500

WE ARE AN AUTOMOBILE SERVICE CENTER. OUR CUSTOMER DROPPED THEIR VEHICLE OFF ON A PARTICULARLY RAINY DAY. THE INSIDE OF THE GLASS WAS COVERED WITH THICK CONDENSATION EVEN THOUGH THE DEFROSTER MODE WITH A/C ON WAS SELECTED. ON HIGH SPEED, THERE WAS VERY LITTLE AIRFLOW FROM THE VENTS. UPON LOWERING THE DRIVER'S WINDOW, THE FAN SPEED, NOISE AND FLOW ALL INCREASED DRAMATICALLY. AN INSPECTION BEHIND THE SEATS REVEALED SOME ITEMS BUT NOT ENOUGH TO COVER THE ENTIRE REAR OF THE CAB. EXTERNAL INSPECTION FOUND AN OUTLET VENT BEHIND THE DRIVER'S SEAT. BACK INSIDE THE TRUCK THERE WAS NO INSIDE OR INLET VENT TO BE FOUND. REMOVAL OF THE CARPETING ON THE REAR WALL OF THE CAB REVEALED A HEAVY, RUBBER BACKED INSULATING MATERIAL THAT EFFECTIVELY SEALED OFF THE VENT. REMOVAL OF A SMALL PORTION OF THE INSULATING MATERIAL AND THE CARPETING IMPROVED AIRFLOW IMMEDIATELY AND EFFECTIVELY DEFROSTED THE GLASS. THE VEHICLE WAS PARKED WHILE WE EXPERIENCED THIS ISSUE. IT IS OUR OPINION THAT THIS DEFECT IS POTENTIALLY HAZARDOUS TO DRIVERS BOTH FROM A VISIBILITY STAND POINT AND THE POSSIBILITY OF INCREASED CARBON MONOXIDE LEVELS DUE TO IMPROPER CAB VENTILATION.