Dec 13, 2015Transmission & drivetrainBody & structure
VEHICLE EXHIBITS A "BUFFETTING" OR PRESSURE SENSATION THAT CAN BE FELT PRIMARILY IN THE EARS BETWEEN 40 AND 50 MPH. AFTER ANY AMOUNT OF TIME AT THESE SUSTAINED SPEEDS IT BEGINS TO CAUSE DIZZINESS, EAR PAIN, AND HEADACHES. THIS CONDITION WAS CONFIRMED BY THE DEALER WITH 3 SEPARATE DRIVERS INCLUDING A TECH, THE SALES MANAGER, AND THE OWNER. GM HAS A TECHNICAL PI ISSUED, AS THE PROBLEM IS APPARENTLY RELATIVELY COMMON IN THESE VEHICLES. SUGGESTED REPAIRS INCLUDE RE-BONDING THE ROOF SHEET METAL TO THE FRAME, REPAIR/REPLACEMENT OF THE REAR DIFFERENTIAL, REPLACEMENT OF THE PROPSHAFT, REPAIR/REPLACEMENT OF WHEELS AND TIRES, REMOVAL AND "RELAXING" OF THE EXHAUST SYSTEM, AND MORE. NONE OF WHICH APPEARS TO SOLVE THE ISSUE. A QUICK INTERNET SEARCH TURNED UP DOZENS OF CASES WITH THIS ISSUE IN JUST ONE WEBSITE. GM HAS MANUFACTURED A VEHICLE WITH A SIGNIFICANT, KNOWN FLAW THAT THEY CANNOT CURRENTLY FIX. THIS FLAW SHOULD BE CONSIDERED A SAFETY ISSUE STRICTLY BASED UPON THE PHYSICAL SYMPTOMS TRIGGERED BY THE SENSATION WITHIN THE VEHICLE.
NHTSA ODI 10809923
Feb 2, 2015Body & structureLatches & locks
ALL DOORS ON THE VEHICLE LOCK WHEN TRANSMISSION IS PUT INTO GEAR AND ALL DOORS LOCK SEVERAL SECONDS AFTER DOOR IS SHUT WITH ENGINE OFF. THE AUTOMATIC DOOR LOCKS CAN NOT BE DEACTIVATED BY MYSELF OR BY THE DEALER. I FIND THIS BOTH A SAFETY ISSUE AND A INCONVENIENCE. AS A COMMERCIAL TRUCK DRIVER DRIVEN MILLIONS OF MILES I HAVE BOTH WITNESSED AND HAVE DIRECTLY BEEN INVOLVED WITH TRYING TO GET PEOPLE EXTRACTED FROM WRECKS. DUE TO LOCKED DOORS IN SEVERAL CASES THIS HAS NOT BEEN POSSIBLE WITHOUT BREAKING A SIDE GLASS AND PHYSICALLY UNLOCKING THE DOOR FROM INSIDE OF THE VEHICLE. IN ONE ACCIDENT TWO PEOPLE WERE UNCONSCIOUS AFTER A CRASH WITH THE ENGINE RUNNING AND A FIRE UNDER THE HOOD, THE DOORS WERE LOCKED. IN ANOTHER, A PERSON WAS HAVING AN EPILEPTIC SEIZURE AFTER A CRASH AND AGAIN DOORS WERE LOCKS. IN THE LAST EXAMPLE A MAN DIED AFTER DRIVING INTO A CANAL, RESCUERS WERE UNABLE TO BREAK THE GLASS IN TIME TO SAVE THE DRIVER. I SHOULD HAVE THE ABILITY TO DECIDE WHETHER TO HAVE THE DOORS AUTOMATICALLY LOCK; NOT THE MANUFACTURER. THE 2013 AND OLDER GMC TRUCKS THE AUTOMATIC DOOR LOCKS CAN BE DEACTIVATED BUT 2014 AND NEWER GM REFUSED TO RELEASE THE PROGRAM TO THE DEALERS OR PUBLIC SO I HAVE NO OPTION BUT TO DRIVE WITH LOCKED DOORS. I AM ASKING TO HAVE GM RELEASE THE PROGRAM TO ACHIEVE DISABLING THE AUTOMATIC DOOR LOCKS. *TR
NHTSA ODI 10680621
Sep 20, 2014Electrical systemBody & structure
DOOR LATCH IN THE LOCKED POSITION WHILE DOOR IS OPEN. CAR COMPUTER THOUGHT THE DOOR WAS CLOSED AND DOOR WAS OPEN. HAPPENED TWO TIMES IN ONE DAY. VERY SERIOUS PROBLEM IS DRIVER IS ALLOWED TO DRIVE WITH CHILDREN IN THE BACK SEAT WITH NO WARNING THAT THE DOOR DID NOT CLOSE. *TR
NHTSA ODI 10637764