Complaint volume
609 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
609 consumer-submitted complaints on record for the 2019 GMC Sierra, grouped by component category.
Buyer interpretation
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
609 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
The most common categories are engine, power train, service brakes. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Enriched records include 12 crash reports, 3 fire reports, 7 injury reports, and 0 fatality reports. These fields come from complaint records and should be read in context.
Mileage is available on 210 complaints, with an average reported failure mileage of 37,279 miles. Compare that with the mileage on the listing.
Build a buyer checklist to turn these issues into questions and inspection points.
609 total complaints on record
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| Feb 2019 | UNKNOWN OR OTHER | MY 2018 GMC SIERRA HAS VIBRATION AT HIGHWAY SPEEDS 60-75 MPH. AFTER SEVERAL HOURS OF DRIVING THE VIBRATION CAN BE FELT AS LOW A 20 MPH AND UP TO 75 MPH. | Crash: No Fire: No | 100 |
| Jan 2019 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER | WHEN I AM DRIVING MY TRUCK, I WILL GET NOTIFICATIONS SAYING THAT THERE IS A TRAILER DISCONNECTION ISSUE WHEN I DON'T EVEN HAVE A TRAILER CONNECTED. IT ALSO FLASHES AN ALERT SAYING THAT THE LANE DEPARTURE SYSTEM AND PEDESTRIAN SENSOR ARE BEING EFFECTED. AS THIS IS GOING ON, THE INFOTAINMENT SCREEN FLASHES ON AND OFF AS WELL WHICH IS VERY DISTRACTING. THEY HAVE CONTINUED TO COME ON IN COLD WEATHER AFTER I HAVE TAKEN IT TO THE DEALERSHIP TO BE LOOKED AT. I DON'T KNOW IF THIS IS A HARDWARE OR SOFTWARE PROBLEM BUT IT NEEDS TO BE ADDRESSED BECAUSE IT BECOMES BOTH A LARGE NUISANCE AND SAFETY HAZARDS WHEN YOU HAVE ERRORS MESSAGES AND LIGHTS FLASHING WHILE YOU'RE DRIVING. | Crash: No Fire: No | 100 |
| Jan 2019 | ELECTRICAL SYSTEM | WHEN THE TEMPERATURE DROPS BELOW ABOUT 20 DEGREES (FAHRENHEIT) THE CENTER INSTRUMENT CLUSTER STARTS DISPLAYING EMERGENCY CODES THAT REQUIRE CONSTANT CLEARING, ONLY TO HAVE THE ERROR CODES REAPPEAR. THE SAME THING HAPPENS ON THE INFOTAINMENT HEAD UNIT IN THE CENTER STACK -- IT FLASHES, RESETS, CUTS THE SOUND IN AND OUT AND DISPLAYS TRAILERING CHECKLISTS. ALL OF THIS IS IMMENSELY DISTRACTING TO THE DRIVER AND CREATES A SAFETY HAZARD. I'VE HAD IT SERVICED AND HAVE BEEN TOLD GM ENGINEERS ARE AWARE OF THE ISSUE (ITS COMMON ON 2019 SIERRA AND SILVERADO 1500 TRUCKS) BUT HAVE BEEN UNABLE TO FIND A SOLUTION. I HAVE VIDEO OF BOTH TYPES OF ERRORS. | Crash: No Fire: No | 2,300 |
| Jan 2019 | ELECTRICAL SYSTEM | TRAILER DISCONNECT WARNING WHEN NO TRAILER IS CONNECTED COLD WEATHER SEEMS TO CAUSE THE ERROR THE WARNING CONTINUALLY POPS UP | Crash: No Fire: No | 500 |
| Jan 2019 | ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC) | VEHICLE SCREENS INCLUDING BOTH THE DRIVER INFORMATION AREA AND THE INFOTAINMENT SCREEN BEGAN FLASHING ALERTS/WARNING ABOUT DISABLED CROSS TRAFFIC ALERT, LANE KEEPING ASSISTANCE, AND TRAILER CONNECTION/DISCONNECTION WARNINGS. ALERTS HAPPENED EVER 2-4 SECONDS WITH SCREEN FLASHES EACH TIME. VERY DISTRACTING IN THE DARK WHICH MAKES IT DIFFICULT TO PAY ATTENTION TO THE ROAD. ALMOST REAR ENDED ANOTHER VEHICLE DUE TO THIS ISSUES. | Crash: No Fire: No | 1,000 |
| Dec 2018 | STRUCTURE | REAR LEFT ROOF IS LEAKING INTO THE INTERIOR OF THE CAB. WATER IS / WAS NOTICED DURING RAIN AND CAR WASH. IN THE ATTACHED PICTURE I HAVE HIGHLIGHTED WERE THE WATER IS COMING INTO THE INSIDE OF THE CAB. WATER CAN ALSO BE SEEN IN THE INSIDE OF THE REAR WINDOW AND ON THE LEATHER OF THE SEATS. THIS HAPPENS WHETHER THE VEHICLE IS PARKED OR DRIVING. IT WAS NOTICED AT 1800 MILES AND ITS LESS THEN A MONTH OLD. | Crash: No Fire: No | 1,800 |
| Dec 2018 | EXTERIOR LIGHTING,VISIBILITY/WIPER | WHEN PUT INTO REVERSE, THE SCREEN FROM BACKUP CAMERA IS OVERLY BRIGHT MAKING IT DIFFICULT TO USE THE SIDE MIRRORS AS THE OPERATORS NIGHT VISION IS COMPROMISED. | Crash: No Fire: No | 2,000 |
| Dec 2018 | POWER TRAIN,SERVICE BRAKES | REAR WHEEL BRAKES UNEXPECTEDLY LOCK UP AFTER DRIVING OVER A HOUR OR MORE | Crash: No Fire: No | 5,000 |
| Dec 2018 | ELECTRICAL SYSTEM,SERVICE BRAKES | HAVE ABOUT 6000 MILES ON MY 2019 GMC SEIRRA DENALI 5.3 . I'VE BEEN EXPERIENCING A VERY TROUBLING ISSUE BEEN TO THE DEALERSHIP ONCE ALREADY AND HAD A HARD TIME CONVINCING THEM THAT SOMETHING WAS WRONG WITH THE TRUCK .EVERY TIME I DRIVE FOR LONG PERIODS OF TIME OR IDLE FOR 10+ MINS WHEN I SHIFT FROM PARK TO DRIVE I CANNOT GO FASTER THAN 5 MPH WITHOUT THE REAR BRAKES LOCKING UP. I DO NOT KNOW IF THIS IS SOME KIND OF LIMP MODE OR WHAT . | Crash: No Fire: No | 5,000 |