2017 GMC SIERRA 1500 Complaints

I HAVE BEEN EXPERIENCING THE HARD UP SHIFT AND DOWN SHIFT PROBLEMS THAT HAS AFFECTED ALMOST ALL GMC SIERRA PICKUPS WITH THE GM 8L90 AND 8L45 TRANSMISSIONS SINCE 2015. THE DEALERSHIP TOLD ME THAT THERE WAS NO REPAIR FOR THE PROBLEM AND RESET THE TRANSMISSION COMPUTER ON 5 SEPARATE OCCASIONS WHICH DID ABSOLUTELY NOTHING TO REMEDY THE PROBLEM. MY VEHICLE IS NOW OUT OF WARRANTY AND THE DEALERSHIP WANTS TO CHARGE ME $2800 TO REPLACE THE VALVE BODY IN THE TRANSMISSION. WHAT IS THE NHTSA GOING TO DO ABOUT THIS ISSUE AND WHY HASN'T GMC BEEN FORCED TO RECALL THESE VEHICLES.

TL* THE CONTACT OWNED 2017 GMC SIERRA LD. THE CONTACT STATED THE VEHICLE WAS SERVICED FOR NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC) AT LOCAL DEALER DON JOHNSON MOTORS CHEVROLET BUICK GMC (734 WEST AVE, RICE LAKE, WI 54868), HOWEVER, THE FAILURE REOCCURRED. THE CONTACT STATED WHILE DRIVING 70 MPH TRAFFIC HAS STOPPED. THE BRAKE PEDAL WAS DEPRESSED HOWEVER THE VEHICLE FAILED TO STOP,CAUSING THE VEHICLE TO HIT ANOTHER VEHICLE AND GUARDRAIL.THE CONTACT STATED THAT THE AIR BAGS DEPLOYED. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOW ARD, AFTER ELEVEN DAYS IT WAS TOWED TO LOCAL DEALER PALM CHEVROLET (2300 SW COLLEGE RD, OCALA, FL 34471) WHERE IT WAS DIAGNOSED THAT THE VACUUM PUMP, SENOR ,AND A BELT NEEDED TO BE REPLACED.THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE CONTACT STATED THE VEHICLE WAS TRADED FOR A 2018 CHEVY IMPALA.THE MANUFACTURER HAD BEEN INFORMED OF THE FAILURE AND A CASE WAS OPENED. THE FAILURE MILEAGE WAS APPROXIMATELY 38,000. *BF *AS

TL* THE CONTACT OWNS A 2017 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 20 MPH A LOUD POPPING NOISE WAS HEARD. UPON INSPECTION IT WAS DISCOVERED THAT THE REAR POWERED SLIDING WINDOW HAD EXPLODED. THE CONTACT INDICATED THAT DURING THE INCIDENT THE WINDOW WAS CLOSED. NO FURTHER INFORMATION WAS AVAILABLE. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE LOCAL DEALER DON FRANKLIN GMC (3380 RICHMOND RD. LEXINGTON KY) AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE BUT NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 78,000.

THE STEERING WHEEL IS VERY HARD TO TURN I AM STILL USING LIKE THAT THE TRUCK HAS 40500 MILES, IT FEELS MORE DIFFICULT TO TURN AT LOW SPEEDS WHEN TURNING ON A STREET, DRIVING ON THE FREEWAY IS NOT DIFFICULT TO CONTROL THE STEERING WHEEL.

TL* THE CONTACT OWNS A 2017 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING ABOUT 50 MPH, INCREASED BRAKING EFFORT WAS REQUIRED IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DOW LEWIS MOTORS DEALER (530-763-2923, LOCATED AT 2913 COLUSA HWY, YUBA CITY, CA 95993) WHERE IT WAS INFORMED OF NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC) HOWEVER, IT WAS CONFIRMED THAT THE PARTS WERE NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT WAS NOT PROVIDED A LOANER VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 60,000. THE VIN WAS NOT PROVIDED.

TL* THE CONTACT OWNS A 2017 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 20 MPH, THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD. THE BRAKES FAILED TO ADEQUATELY SLOW DOWN THE VEHICLE. PRIOR TO THE FAILURE, THE VEHICLE WAS TAKEN TO MASTRIA BUICK GMC (1525 NEW STATE HWY, RAYNHAM, MA 02767, (508) 880-7000) TO BE REPAIRED PER NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC). THE CONTACT STATED THAT THE FAILURE RECURRED TWICE AFTER THE REPAIR. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 40,000. *BF *TR

TL* THE CONTACT OWNS A 2017 GMC SIERRA 1500. ON SEVERAL OCCASIONS, THE ACCELERATOR PEDAL WAS DEPRESSED; HOWEVER, THE VEHICLE FAILED TO RESPOND. ON ONE OCCASION, THE GEAR SHIFT LEVER WAS PLACED IN REVERSE AND THE ACCELERATOR PEDAL WAS DEPRESSED; HOWEVER, THE RPMS REVVED WITHOUT THE VEHICLE RESPONDING. THE VEHICLE WAS TAKEN TO GREG LAIR BUICK GMC (16200 CANYON DR, CANYON, TX 79015, (806) 553-5706) ON TWO SEPARATE OCCASIONS; HOWEVER, THE TRANSMISSION TECHNICIAN WAS NOT AVAILABLE TO DIAGNOSE THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 33,042.

WHILE DRIVING ON THE ROAD AT REGULATED SPEED, MY WARNING LIGHT TURNED ON AND ONE OF THE WHEELS WAS LOWER IN AIR PSI COMPARING TO THE OTHER 3. I THOUGHT THE TIRES WERE ALREADY WORN OUT SO COUPLE OF WEEKS LATER I REPLACED THE TIRES, I SAW THAT THE WARNING LIGHT POPPED UP ONCE AGAIN SO I WENT BACK TO THE TIRE SHOP AND WHAT THEY FOUND OUT WAS THAT THE RIM HAS A SLIGHT CRACK ON THE INNER SIDE AND AIR WAS LEAKING OUT, THE WEEK FOLLOWING THE TIRE REPLACEMENT I TOOK MY CAR TO THE DEALER FOR A SOLUTION AND THEY FAILED TO ASSIST ME AND DENIED THE MANUFACTURING DEFECT.

THE 8 SPEED TRANSMISSION SHIFTS HARD GOING FROM 1ST TO 2ND. IT CANT DECIDE WHAT GEAR IT WANTS AT SPEEDS AROUND 40MPH. IT HAS REVVED UP AND THEN SLAMMED INTO GEAR GOING INTO GARAGE AND HAS EVEN DONE IT GOING INTO A PARKING SPOT. THANK GOD NO ONE WAS IN FRONT OF ME! THE TRUCK HAS DONE THIS SINCE NEW. DEALER HAS REPROGRAMMED THE SOFTWARE PER GM, CHANGED THE TRANSMISSION FLUID TO NO AVAIL. DEALER HAS BEEN GREAT IN TRYING TO FIND AND REPAIR ISSUE BUT ALL THEY TELL ME IS GM IS AWARE OF ISSUE BUT DOES NOT KNOW WHAT TO DO. THE ONLY THING THEY ARE ALLOWED IS TO REPROGRAM THE SOFTWARE AND SEND IT HOME. THE DEALER HAS EVEN TOLD ME THEY HAVE SEVERAL CUSTOMERS WITH THIS ISSUE IN ONLY THE 8 SPEED TRANSMISSION. I KNOW HOW TO FIX IT, REPLACE THE TRANSMISSIONS WITH THE NEW 10 SPEED. GM HAS EVEN SAID THAT IS WHY THEY CAME OUR WITH IT BECAUSE THE 8 SPEED HAS ISSUES. I KNOW GM WILL SAY IT IS NOT A SAFETY ISSUE BUT IF A VEHICLE JUMPS INTO GEAR AND HITS A PEDESTRIAN, WHO WILL BE TO BLAME! MY TRUCK HAS 46,000 MILES AND IT HAS DONE THIS SINCE IT WAS NEW.

TL* THE CONTACT OWNS A 2017 GMC SIERRA 1500. WHILE DRIVING AT LOW SPEEDS, THE VEHICLE VIOLENTLY DOWNSHIFTED FROM FIRST INTO SECOND GEAR. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN FOUR TIMES TO DEMAROIS BUICK GMC MERCEDES-BENZ (3115 W BROADWAY ST, MISSOULA, MT 59808, (406) 721-4000) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION NEEDED TO BE REPROGRAMMED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 9-526--2561452. THE FAILURE MILEAGE WAS 20,000.