2018 GMC Sierra 1500

TL* THE CONTACT OWNS A 2018 GMC SIERRA 1500. WHEN THE CONTACT SHIFTED INTO DRIVE, THE VEHICLE LUNGED FORWARD WITH THE BRAKE PEDAL DEPRESSED. AS A RESULT, THE VEHICLE CRASHED INTO A HANDICAP SIGN. THERE WERE NO INJURIES. PRIOR TO THE CRASH, THE VEHICLE WAS TAKEN TO BILL KAY CHEVROLET (LOCATED AT 601 OGDEN AVE, LISLE, IL 60532, (630) 968-2900) TO BE DIAGNOSED DUE TO HARD SHIFTING. THE CONTACT WAS INFORMED THAT A TRANSMISSION RE-LEARN OF THE SOFTWARE WAS NEEDED TO CORRECT THE HARD SHIFTING; HOWEVER, THE FAILURE BECAME MORE PRONOUNCED. THE CONTACT STATED THAT THE FAILURE WAS INTERMITTENT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE AND DECLINED TO ASSIST. THE APPROXIMATE FAILURE MILEAGE WAS 13,000.

I EXPERIENCED FAILURE OF THE TRANSMISSION TO SIFT UP OR DOWN ON SEVERAL OCCASIONS BETWEEN 11/01/2019 AND 11/11/2019. ON 11/08/2019 I WAS MONITORING THE TRANSMISSION TEMPERATURE, AND WHEN THE TRANSMISSION TEMP REACHED 164 DEG, THE TRANSMISSION WOULD STOP SHIFTING PROPERLY AT 25 TO 30 MPH, AND THE TRANS TEMP WOULD JUMP TO 192+ DEG. TRANSMISSION SEEMED TO SLIP AND THE VEHICLE WOULD NOT ACCELERATE. RPMS JUMPED TO 3K-4K RMS BUT SPEED WOULD NOT CHANGE UP OR DOWN. CONTACTED THE DEALERSHIP AND MADE AN APPOINTMENT FOR 11/11. ON 11/11 I DROVE THE TO THE DEALER 10 MILES AWAY. I MONITORED THE TRANS TEMP AS I DROVE, AND NO SHIFTING ISSUES UNTIL JUST BEFORE REACHING THE DEALERSHIP (TRANS TEMP HAD REACHED 154 DEG). I ROAD WITH THE DEALER REP FOR A TEST DRIVE AND HE WAS ABLE TO DUPLICATE THE PROBLEM AT 30-MPH AND TRANS TEMP QUICKLY ROSE AGAIN TO OVER 192-DEG. DEALER REP TRIED TO USE THE MANUAL SHIFT OPTION BUT EVEN USING THAT HE WAS UNABLE TO GET THE TRANSMISSON TO SHIFT PROPERLY ANS ENGINE RPMS EXCEEDED 5K AND STAYED THERE UNTIL THE TRANSMISSION SHIFTED INTO GEAR. DEALER REP STATED THAT IS NOT GOOD DURING THE TEST DRIVE. ARRIVING BACK AT THE SERVICE DEPARTMENT THE DEALER REP THAT TEST DROVE THE VEHICLE TOLD THE SERVICE DEP AMANGER THE VEHICLE WAS NOT SAFE TO DRIVE. I WAS TOLD THE TRANSMISSION WOULD NEED TO BE TORN DOWN TO FIGURE OUT WHAT THE PROBLEM WAS AND IT MIGHT BE AFTER THE FIRST OF THE YEAR BEFORE THEY WOULD HAVE IT FIXED DUE ALACK OF PARTS DUE TO THE RECENT STRIKE, AND A BAG LOG OF VEHICLES ALREADY WAITING REPAIR PARTS. OTHER COMPLAINTS THAT SEEM TO MATCH MINE ARE NHTSA IDS: 11193281, 11230193, 11221668, AND 11205523. ISSUE IS A SERIOUS SAFETY ISSUE IF THE VEHICLE CANNOT ACCELERATE SAFELY TO MERGE WITH TRAFFIC.

TL* THE CONTACT OWNS A 2018 GMC SIERRA 1500. WHILE ATTEMPTING TO ACCELERATE, THE CONTACT NOTICED A HARD SHIFT WITH THE EIGHT SPEED TRANSMISSION. THE CONTACT THOUGHT THE TRANSMISSION HAD FALLEN OFF THE VEHICLE. THE CONTACT FELT THIS WAS A DEFECT, ESPECIALLY DURING COLD STARTS IN THE MORNING. RAY SKILLMAN SOUTHSIDE BUICK GMC (8424 US-31, INDIANAPOLIS, IN 46227, (317) 497-0711) WAS CONTACTED AND PROVIDED A REPORT INDICATING THAT THIS WAS A NORMAL OCCURRENCE. THE MANUFACTURER WAS NOT CONTACTED. THROUGH ONLINE RESEARCH, THE CONTACT BELIEVED HE HAD A CASE WITH THE LEMON LAW. THE FAILURE MILEAGE WAS 4,768. *PM*JB

TL* THE CONTACT OWNS A 2018 GMC SIERRA 1500. THE CONTACT STATED THAT THE TRANSMISSION SHIFTED FROM FIRST TO SECOND GEAR WHILE DRIVING 15 TO 20 MPH. ALSO, WHEN DRIVING ON THE HIGHWAY FOR A LONG PERIOD OF TIME, THE TRANSMISSION WOULD NOT DOWNSHIFT UNTIL THE VEHICLE CAME TO A STOP, AND WOULD THEN FAIL TO MOVE FORWARD. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO GOLLING BUICK GMC (1491 S LAPEER RD, ORION CHARTER TOWNSHIP, MI 48360, (248) 693-5900), BUT THE FAILURES COULD NOT BE DUPLICATED. ON ANOTHER OCCASION, WHEN THE VEHICLE WAS ENGAGED IN TWO WHEEL DRIVE, THE REAR END FAILED TO UNLOCK AND WOULD JERK. THE CONTACT DROVE THE VEHICLE TO THE SAME DEALER WHERE DIAGNOSTIC TESTING WAS COMPLETED, BUT A FAILURE COULD NOT BE FOUND. THE VEHICLE WAS NOT REPAIRED. THE CONTACT STATED THAT THE FAILURE RECURRED THREE TIMES. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 16,000.

AFTER TRUCK HAS SET FOR A WHILE AND START TO TAKE OFF FROM A STAND STILL AND IT GOES TO SHIFT FROM 1ST TO 2ND IT WILL HARD SHIFT AND TRUCK WILL SOMETIMES LURCH FORWARD. WHEN ACCELERATING SLOWLY TRUCK WITH SHUTTER WHEN SHIFTING GEARS, ALMOST LIKE IT CAN'T DECIDE TO SHIFT TO THE NEXT GEAR. ONCE TRUCK IS WARMED UP THIS NO LONGER HAPPENS.

NO TRANSMISSION POWER REGARDLESS OF THE GEAR SHIFTER POSITION. I TURNED THE ENGINE ON AND OFF SEVERAL TIMES TRYING TO GET A SOLUTION, NO LUCK. I RETURNED TO THE VEHICLE 5 MINUTES LATER AND DID GET IT TO MOVE,,,WOULD ONLY GO 25 MPH AT 3000 RPMS. I WAS IN THE MIDDLE OF WI NOT NEAR ANY MAJOR DEALERSHIP ON-STAR WAS USELESS SAYING I HAD A MAJOR ENGINE PROBLEM AND THE COMPUTER WAS TRYING TO PROTECT THE ENGINE. I WAS DIRECTED ME TO A CHRYSLER DEALER SHIP, WHO TOLD THEY COULD NOT GET ME IN FOR 2 WEEKS, SUGGESTED ANOTHER BRANCH WHICH WAS OVER 45 MILES AWAY. I DROVE 5 MILES TO A FRIENDS HOUSE AND WAS ABLE TO FIND A DEALERSHIP IN JANESVILLE, WI (FAGAN). WHEN I STARTED THE VEHICLE TO DRIVE TO JANESVILLE, THE TRANSMISSION DID WORK. FAGAN SPENT 2 HOURS WORKING ON IT, AND COULD NOT FIND A CAUSE FOR THE PROBLEMS, THEY CHECKED EVERY COMPUTER, COULD NOT DUPLICATE WHAT HAPPENED. THEY REPROGRAMMED ALL THE COMPUTERS. THEN IN CINCINNATI, OH THE POWER STEERING ASSIST WENT "OFF", WHILE STAIONARY. I TRIED RESTARTING SEVERAL TIMES TO NO AVAIL, DROVE THE 3 MILES LEFT TO THE G'KIDS HOUSE, NO POWER STEERING, TRAILER PROBLEM LIGHJT ON, NO RPM OR MPH NEEDLES MOVING. CALLED LOCAL DEALERSHIP (BORCHARDING) AND THEY SUGGESTED I DRIVE IT TO THEIR LOCATION 12 MILES AWAY. WHEN I STARTED IT, THE POWER STEERING WAS BACK ON, BUT THE UNIT WOULD NOT GET OUT OF 2ND GEAR, RAN 40 MPH AT 2500 RPM, WARNING LIGHTS ALL ON, ENGINE LIGHT STILL ON. NEXT MORING I STARTED THE VEHICLE, EVERYTHING WAS OKAY INCLUDING THE TRANSMISSION PROBLEM, BUT STILL HAD THE "CHECK ENGINE ON", THE DEALERSHIP KEPT IT (2) DAYS, INVOLVED GMC ENGINEERS, COULD NOT DETERMINE THE CAUSE FOR ALL THE PROBLEMS,INCLUDING LOSS OF "STEERING ASSIST". THEY DROVE IT OVER 50 MILES ON TWO TRIPS,COULD NOT DUPLICATE WHAT HAPPENED. THEY TOLD ME IT WAS SOME KIND OF COMPUTER PROBLEM, BUT COULD NOT DETERMINE, THEY RESET EVERYTHING AGAIN.

WHEN 1ST CRANKING TRUCK AND PUT IN DRIVE MOTORS RREV UP AND SHIFTS HARD TO SECOND. OCCASIONALLY WHEN I OUT IN REVERSE IT WILL SIT THERE N NOT SHIFT IN. THEN WHEN IT DOES IT SHIFTS HARD. WHEN ACCELERATING THE TRUCK IT SOUNDS LIKE A CLATTERING SOUND UNDER DRIVERS SIDE UNDER HOOD. TRIED DIFFERENT TYPE OF GASOLINE AND NOTHING CHANGES. GMAC NEEDS TO DO A RECALL ON BOTH OF THESE ITEMS. I AM VERY DISAPPOINTED IN MY GMC AND GMAC