GMC Sierra Complaints (2020)

626 consumer complaints on file.

#11342047July 29, 2020
UNKNOWN OR OTHER
PART #19419266 TONNEAU WAS INSTALLED 07/16/2020 AND LEAKS TERRIBLE IN THE RAIN
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11341106July 23, 2020
UNKNOWN OR OTHER
WHILE TOWING A FIFTH WHEEL CAMPER, THE EXHAUST WAS SO HOT IT MELTED THE CAMPER DIRECTLY BEHIND IT. WAS CAUGHT IN SIDE MIRROR BEFORE ANYTHING CAUGHT ON FIRE.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11340264July 19, 2020
ELECTRICAL SYSTEM
BRAND NEW TRUCK PURCHASED IN MAY 2020. VEHICLE WOULD NOT START ON 7/2/2020 AND A NEW BATTERY WAS PLACED IN THE VEHICLE. THE TRUCK WOULD NOT START AGAIN ON 7/17/2020 UNKNOWN REASONS...
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11339633July 15, 2020
UNKNOWN OR OTHER
AFTER VEHICLE SITS IDLE FOR A WHILE, THE VEHICLE MAKES A HIGH PITCH WHISTLING SOUND ON STARTUP THAT LAST FOR APPROXIMATELY MINUTE OF DRIVING.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11339260July 14, 2020
STEERING
2020 GMC SIERRA STEERING ISSUES. LOSS OF COMMUNICATION BETWEEN MODULES. RESULTS IN LOCKED STEERING OR NO POWER STEERING ASSIST. HAPPENS RANDOMLY AT VEHICLE START UP. BEEN TO THE DEALER FOUR TIMES SO FAR. THE FIRST TWO WAS INFORMED THERE'S NOTHING WRONG WITH IT. REPAIRS ATTEMPTED, UPDATE SOFTWARE, ENGINE HARNESS REPAIR, AND STEERING MODULE REPLACEMENT.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11330494June 24, 2020
UNKNOWN OR OTHER, EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
NAVIGATION STATES TO TURN RIGHT WHEN IT SHOULD BE LEFT OR VICE VERSA. THIS WAS A PROBLEM ON THE 2016-2017 MODELS ALSO. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11330146June 22, 2020
UNKNOWN OR OTHER
THE FRONT PARK ASSIST SENSORS ON THIS TRUCK DO NOT OPERATE AS INTENDED, OR AS ON PRIOR YEARS OR AS ON OTHER VEHICLES. THE SENSORS DID NOT PICK UP PARKING BOLLARDS IN FRONT OF A CONVENIENCE STORE AND RESULTED IN A MINOR DING THAT COST OVER $1300 TO REPAIR. WHEN BUMPER WAS REPAIRED THE SERVICE PERSON SAID SENSORS WERE FIXED, YET, TO HIS SURPRISE, WE WERE ABLE TO INCH UP TO A CAR DIRECTLY INTERSECTING THE FRONT OF THE CAR AND IT DID NOT PICK IT UP. I DID A SIMILAR TEST WITH A BRAND NEW/UNSOLD VEHICLE ON DEALER LOT IND IT FAILED TO SENSE THE LARGE TRUCK DIRECTLY IN FRONT OF IT. THIS I BELIEVE CAN BE A VERY DANGEROUS SAFETY ISSUE AS THE TRUCK HOOD SITS VERY HIGH IMPEDING VIABILITY AND A SMALL PERSON OR PET CAN EASILY GO UNDETECTED. THESE VEHICLES HAS ALSO HAD NUMEROUS RECALLS INCLUDING ONE FOR THE POSSIBILITY OF THE HOOD FLYING OPEN WHILE OPERATING. I HAVE SOLD THE TRUCK AS ALL OF THESE ISSUES HAVE DEVALUED THE VEHICLE, IT REMAINS UNSAFE AND GM RESPONSE HAS BEEN LESS THAN FAVORABLE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11329324June 17, 2020
SERVICE BRAKES, STEERING
TL* THE CONTACT OWNS A 2020 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING AT 25 MPH, THE SYSTEM BRAKE FAILURE WARNING MESSAGE ILLUMINATED ON THE INSTRUMENT PANEL. ONCE THE WARNING LIGHT ILLUMINATED, THE CONTACT EXPERIENCED COMPLETE BRAKE AND STEERING FAILURE. THE CONTACT WAS ABLE TO STEER THE VEHICLE INTO A CURB TO SLOW DOWN THE VEHICLE AND AVOID A POSSIBLE COLLISION WITH ANOTHER VEHICLE. THE CONTACT STATED THAT HE HAD SUFFERED PAIN TO HIS LEFT SHOULDER BLADE AND LEFT KNEE; HOWEVER, HE DID NOT SEEK MEDICAL ATTENTION DUE TO COVID-19. AFTER EXPERIENCING THE FAILURE, THE CONTACT HAD THE VEHICLE TOWED TO DESERT SUN MOTORS, INC. (2600 N WHITE SANDS BLVD, ALAMOGORDO, NM 88310) WHERE THEY CLEARED THE SYSTEM'S COMPUTER AND INFORMED THE CONTACT THAT THEY FOUND NO DEFECTS WITH THE VEHICLE. UPON RETURN OF THE VEHICLE, HE EXPERIENCED ANOTHER BRAKE FAILURE AS THE CHECK ENGINE LIGHT ILLUMINATED WHILE DRIVING AT 55 MPH. DUE TO THE FAILURE, THE CONTACT WAS FORCED TO RUN A RED LIGHT AND DRIVE UP AN INCLINE IN ORDER TO BRING THE VEHICLE TO A COMPLETE STOP. THE VEHICLE WAS THEN TOWED SHAMALEY BUICK GMC (955 CROCKETT ST, EL PASO, TX 79922) WHERE IT REMAINED IN THEIR POSSESSION. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A FIELD INSPECTOR WAS SENT TO INSPECT THE VEHICLE. THE CONTACT STATED THAT KNOW BRAKE FAILURE CODES WERE DETECTED. THE CONTACT STATED AFTER THE THIRD FAILURE THE VEHICLE WAS TOWED TO SHAMALEY GMC WHERE IT WAS AWAITING DIAGNOSIS. THE VEHICLE HAD YET TO BE REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11328737June 14, 2020
SERVICE BRAKES, ELECTRONIC STABILITY CONTROL (ESC), SUSPENSION
HIGHWAY DRIVING ENGINE LIGHT STARTED FLASHING, RECEIVED CODES ON SERVICE ESC AND SERVICE PARKING BRAKE. TRUCK SEEMED TO LOOSE POWER TRANSMISSION STARTED SHIFTING VERY HARD, CRUSE DISENGAGED,LANE KEEP ASSIST STOPPED WORKING , BRAKES AND STEERING SEEMED TO ACT DIFFERENT . WHEN IGNITION WAS TURNED OFF LOUD NOISES FROM UNDER TRUCK SOUNDED LIKE BRAKES RELEASING WITH LOUD CLUNKING NOISE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11326110May 27, 2020
ENGINE
RUPTURED OIL COOLER LINE. DRAINING THE ENGINE OF OIL AND CAUSING LOCK-UP. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11326057May 26, 2020
UNKNOWN OR OTHER
CAN NOT SEE ANYTHING BACKING UP IN THE DARK BECAUSE OF BACKUP CAMERA. THE PICTURE ON THE SCREEN IS GRAINY AND WASHED OUT SO ALL YOU SEE ARE BLOBS OF NOTHING. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11325262May 20, 2020
ENGINE
TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING, HE NOTICED SMOKE ENTERING THE VEHICLE THROUGH THE AIR VENTS. THE CONTACT COASTED TO THE SIDE OF THE ROAD, EXITED THE VEHICLE SAFELY WITH HIS PASSENGER, UPON OPENING THE HOOD NOTICED THAT THE WHOLE ENGINE COMPARTMENT WAS ON FIRE. THE CONTACT STATED THAT THE FIRE DEPARTMENT ARRIVED BUT WAS UNABLE TO EXTINGUISH THE FLAMES AS THEY ALLOWED THE VEHICLE TO BURN UNTIL THE FIRE SELF EXTINGUISHED. THE DEALER NOR THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 2,800. VIN WAS NOT AVAILABLE.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11324017May 10, 2020
ENGINE
ENGINE LIKE KEEPS COMING ON. CODE READING THE KNOCK SENSOR NEEDS TO BE REPAIR. SENSOR HAS BEEN REPLACE TWICE IN THE PAST THREE MONTHS. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11322885April 30, 2020
ELECTRICAL SYSTEM
REVIEW CAMERA IS EXTREMELY BRIGHT WHEN BACKING. IT'S SO BRIGHT THAT A GLARE IS THROWN ONTO REAR WINDOW MAKING IT NEXT TO IMPOSSIBLE TO SEE OUT REAR WINDOW OR USE SIDE VIEW MIRRORS. I OFTEN REVERT TO TO OPEN DRIVERS DOOR AND LOOKING BACKWARDS THAT WAY. SOMEONE IS GOING TO GET RUN OVER AS YOU CANNOT SEE WHERE YOU ARE BACKING. VERY DANGEROUS!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11315961March 4, 2020
SERVICE BRAKES
THE ABS SYSTEM FAILED WHILE DRIVING DOWN THE ROAD CAUSING THE BRAKES TO LOCK UP AND CAUSED THE TRUCK TO SPIN OUT OF CONTROL NEARLY CRASHING INTO ANOTHER VEHICLE AND JUMPING OVER THE CENTER DIVIDE INTO ONCOMING TRAFFIC.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11310853February 23, 2020
SERVICE BRAKES, ELECTRONIC STABILITY CONTROL (ESC), STEERING
I WAS GOING ABOUT 15 MILES PER HOUR WHEN SUDDENLY ALL THESE ERROR CODES STARTED POPPING UP, FIRST "ESC MALFUNCTION" THEN TRAILER BRAKE MALFUNCTION,STABILITRAK, STEERING ASSIST REDUCED, BRAKE SYSTEM FAIL, LIGHS JUST POP UP I DO FEEL LIKE THE TRUCK LOOSES SOME POWER FEELS MORE SLUGGISH, I TOOK IT TO DEALERSHIP, THEY RECALIBRATED THE BREAK SYSTEM AND STUFF, IT FIXED THE ISSUE TEMPORARILY, BUT THE LIGHTS KEEP COMING BACK, SOMETIMES I TURN THE TRUCK ON IN THE MORNING AND LIGHTS ARE GONE, THEN LATER ON I GET ALL THE ERROR CODES AGAIN WHILE DRIVING IT. IT STARTED 4 DAYS AFTER I PURCHASED THE TRUCK AND HAPPENS DAILY SINCE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11310256February 19, 2020
SERVICE BRAKES
2020 GMC 6.2 L V8 1500 4W SIERRA DENALI. BOUGHT YESTERDAY NEW FROM DEALERSHIP. TODAY, NOT EVEN 120 MILES AND BRAKES MALFUNCTIONED. I STARTED TRUCK WITH GMC APP. GOT IN CAR WITH MY FAMILY AND AS I PULLED OUT OF PARKING STALL PUSHING ON BRAKES MET EXTREME RESISTANCE AND SLUGGISHLY CAME TO A STOP. I PUT TRUCK IN PARK. SHUT OFF AND TURNED BACK ON. BRAKES STILL NOT FUNCTIONING. 'BRAKES' 'ABS' AND ICONS FOR TRACTION CONTROL AND CHECK ENGINE LIGHTS WERE ON. AGAIN ATTEMPTED TO DRIVE. DRIVING 20 MPH WOULD TAKE GREATER THAN 50 YARDS TO STOP, WITH ME, 220# ATHLETIC MALE APPLYING FULL FORCE. WARNING MESSAGE ALSO APPEARED 'BRAKE SYSTEM FAILURE MAX SPEED 62 MPH'. NO IDEA WHERE 62 WAS FORMULATED. ALSO SOME MESSAGE ABOUT TRAILER BRAKES CAME ON TOO. NO TRAILER WAS ATTACHED. I SHUT TRUCK OFF. 30 MINUTES LATER STARTED, CHECK ENGINE LIGHT WAS ONLY LIGHT ON. BRAKES WORKED NORMAL. WAS ABLE TO CAUTIOUSLY GET 3 MILES HOME. THIS IS A POTENTIALLY FATAL FLAW. AGAIN THIS TRUCK IS STRAIGHT OFF THE DEALERS LOT. ONSTAR SENT EMAIL STATING 'ISSUE WITH ANTILOCK BRAKING SYSTEM, TAKE TO DEALERSHIP WITHIN 7 DAYS '. SO BRAKE FAILURE IS A MAJOR ISSUE. BUT ALSO A KNOWN BRAKE ISSUE AND THE COMPUTERS SAY STAY BELOW 62 MPH AND GET SERVICED WITHIN 7 DAYS ARE JUST AS WORRISOME. A BRAKING ISSUE SHOULD INSTRUCT DON'T DRIVE AND HAVE TOWED THANKS
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11309738February 17, 2020
ELECTRICAL SYSTEM, ENGINE
SMELL OF SMOKE STRONG IN THE CAB AND OUTSIDE HOOD OF TRUCK. ALSO HAVE SEEN SMOKE COMING FROM HOOD OF TRUCK. SMELLS LIKE BURNING ELECTRICAL OR PLASTIC
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11309169February 14, 2020
SERVICE BRAKES
VEHICLE WAS PARKED. ENTERED VEHICLE AND TURNED ON VEHICLE USING INTERIOR START BUTTON. VEHICLE WAS PUT IN REVERSE AND WAS BAKING WHEN ALL BREAK PRESSURE DISAPPEARED AND VEHICLE WAS ROLLING BACKWARD AND CAME TO A STOP BEFORE STRIKING ANOTHER VEHICLE AND CHILD. VEHICLE WAS PLACED IN PARK AND ESC FAILURE, TRAILER BRAKE FAILURE, TRACTION CONTROL FAILURE, POWER STEERING FAILURE AND DO NOT DRIVE ABOVE 62 MHP ALARMED ON THE DASH. VEHICLE WAS SHUT OFF AND ON 3 TIMES AND RESET FINALLY REGAINED SOME BREAK PRESSURE BUT CHECK ENGINE LIGHT CAME N. VEHICLE WAS TOWED TO TRENT GMC, NEW BERN NC FOR SERVICE. SERVICE TOLD US IT HAD A RECALL. I WAS UNABLE TO LOCATE A RECALL FOR THIS ISSUE. THIS COULD HAVE ENDED VERY BAD. I AM NOT ASSURED THAT THE PROBLEM IS FIXED.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11308116February 10, 2020
ELECTRICAL SYSTEM, UNKNOWN OR OTHER, EXTERIOR LIGHTING
BRAND NEW TRUCK. STUCK AT THE GYM IN THE MIDDLE OF THE NIGHT TRUCK WONT START. THE INTERIOR LIGHTS, HEAD LIGHTS, AND RADIO WONT SHUT OFF. VEHICLE WONT START. I'M ASSUMING THE BATTERY WAS DRAINED BECAUSE INTERIOR LIGHTS, EXTERIOR LIGHTS, RADIO, WONT SHUT OFF. HAS TO BE SOME KIND OF ELECTRICAL MALFUNCTION. WAITING ON GM ROADSIDE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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