57 of the
332 complaints filed about the GMC Sierra Denali
are about the braking system —
17% of everything owners reported.
The worst model year for it is 2002.
CERTAIN 2018 GMC SIERRA 1500 DENALIS WERE ISSUED A RECALL FOR THE "ELECTRONIC BRAKE CONTROL MODULE". FOR MY VIN, IT DOESN'T SHOW THAT THAT ISSUE NEEDS TO BE FIXED (I JUST PURCHASED THIS TRUCK LAST WEEK), BUT IT INDEED DOES. WHEN COASTING AT A LOW SPEED ON A SMALL HILL, BRAKES ALMOST FEEL NON EXISTENT. GMC RECALLED MANY OF THEIR VEHICLES TO GET THIS ISSUE SORTED OUT WITH A SIMPLE, "SOFTWARE UPDATE". FOR SOME ODD REASON MY GMC'S VIN WASN'T UP FOR A RECALL WHEN IT CLEARLY NEEDS ONE, IM PLEADING FOR SOME HELP; I'M WORRIED FOR MY SAFETY BECAUSE OF THIS MANUFACTURER DEFECT. ANY HELP IS APPRECIATED, THANK YOU.
NHTSA complaint #11408155 — an unverified report by a vehicle owner.
4 MONTHS AGO THE DISPLAY PORTRAYED A MESSAGE STATING, TRAILER BRAKE WARNING, HAVE SYSTEM CHECKED. SINCE THAT TIME I HAVE ATTEMPTED ON NUMEROUS TO HAVE MY VEHICLE CHECKED. BUT AS OF THIS DATE I HAVE NOT BEEN TO HAVE ANY DEALERSHIP LOOK AT MY VEHICLE. I HAVE BEEN TOLD BY DEALERSHIP THAT THE VEHICLE COMPUTER SHOWS A HISTORY BUT NO CURRENT ERROR CODES, AND THEY CAN NOT WORK ON VEHICLE UNTIL IT HAS CURRENT CODES. SO I HAVE A TRUCK THAT IS DESIGNED TO TOW CARGO/VEHICLE BUT I AM NOT ABLE TO USE MY TRUCK FOR THAT PURPOSE BECAUSE OF THIS WARNING MESSAGE. I HAVE CONTACTED DEALERSHIPS, CUSTOMER SERVICE WITH GMC AND EVEN FILED A COMPLAINT WITH TENNESSEE DEPT OF CONSUMER AFFAIRS, BUT NO ONE WANTS TO HELP WITH MY PROBLEM. I HAVE NOTICED ON THE INTERNET THAT I AM NOT THE ONLY ONE WITH THIS ISSUE. DANGEROUS SITUATION SHOULD SOMEONE USE VEHICLE TOWING. BIGGEST PROBLEM GM DOES NOT WANT TO EVEN ACKNOWLEDGE THAT THEY HAVE A PROBLEM.
NHTSA complaint #11385689 — an unverified report by a vehicle owner.
TWO ISSUES BROKEN VALVE SPRING CAUSED ENGINE TO SHUT DOWN, SECOND SERVICE BRAKE, BRAKE FAILURE LIGHT, SERVICE ESC, SERVICE TRAILER BRAKE MESSAGES CAUSING BRAKE FAILURE
NHTSA complaint #11367036 — an unverified report by a vehicle owner.
ON THE MORNING OF OCT 26, 2020 @ 845AM... I WAS HEADING SOUTH ON 287 IN MANSFIELD TX. IT WAS RAINING HARD SO I WAS ONLY GOING 60 MPH. THE CAR IN FRONT OF ME WAS GOING 55 OR SO. WHEN THE RAIN AND WIND PICKED UP, THE CAR IN FRONT OF ME ABRUPTLY HIT ITS BRAKES. THAT'S WHEN MY TRUCK BRAKES LOCKED AND I BEGAN SLIDING OR BEING PULLED TO THE RIGHT. I WAS IN THE LEFT LANE ON THE 2 LANE HIGHWAY. HAD IT NOT BEEN FOR GOD AND ME, NOT PANICKING... I WOULD HAVE CRASHED! MY TRUCK FISH TAILED TWICE WHILE I WAS TRYING TO APPLY THE BRAKES BUT... I COULDN'T STOP. I ALMOST PUT THE TRUCK GEAR IN NEUTRAL BUT IT WAS RAINING SO SOMEHOW THE TRUCK MANAGED TO SLOW DOWN GOING UP A SMALL HILL, GIVING ME CONTROL BACK. THERE WERE 2 OTHER CARS THAT SEEN THIS. I WAS A NERVOUS WRECK! I IMMEDIATELY GOT OFF THE HIGHWAY AND WENT TO THE FIRST GAS STATION I SAW AND THANKED GOD NOTHING HAPPENED. THE PROBLEM I HAVE IS, WHAT IF MY FAMILY WERE IN THE VEHICLE? HOW IS IT THAT GM IS ALLOWED TO SELL THESE VEHICLES? ALSO, I SEARCHED ALMOST EVERY WEBSITE AND INCLUDED MY VIN... BUT EVERY REPLY SAYS MY TRUCK IS OK (UNTIL TODAY). I HAVEN'T HAD THIS TRUCK FOR A YEAR YET. BUT I'M READY TO TRADE IT IN. I DON'T FEEL SAFE AT ALL. I ALMOST WANT TO GET MY TRUCK TOWED HOME. WHY PUT PEOPLE LIVES IN JEOPARDY?
NHTSA complaint #11366524 — an unverified report by a vehicle owner.
I NEARLY DIED WHEN MY BRAKES FAILED ON MY 2018 GMC DENALI THIS MORNING. I WAS ONLY GOING 60 MPH WHEN ANOTHER DRIVER CUT IN FRONT OF ME, AND HIT THEIR BRAKES BUT WHEN I TRIED TO STOP, I COULD NOT! I THEN BEGAN SWERVING FROM LANE TO LANE BECAUSE IT WAS RAINING. THANK GOD I DIDN'T DIE AND THAT THE PERSON ON THE RIGHT SLOWED DOWN AND MOVED OUT THE WAY. THE TRUCK SEEMED TO BE PULLING ME TO THE RIGHT. WHY I HAVE NO IDEA. BUT WHY IS GM PUTTING PEOPLE LIVES AT RISK LIKE THIS? WHY ARE WE HAVING TO SUFFER OR PUT OUR FAMILIES IN JEOPARDY. THIS MAKES NO SENSE. MY CHEST STARTED HURTING REALLY BAD AFTERWARDS, BECAUSE I WAS SO SCARED. I WAS ON A 2 LANE HIGHWAY GOING STRAIGHT BUT EVEN THAT DOESN'T CAUSE A VEHICLE NOT TO RESPOND LIKE IT DID.
NHTSA complaint #11366569 — an unverified report by a vehicle owner.
APPARENTLY, THE 8 SPEED AUTOMATIC TRANSMISSION HAS ISSUES WITH WIRING HARNESS AND HARD SHIFTING WHICH THE MANUFACTURER HAS 18 SERVICE BULLETINS OUT ON YET STILL WILL NOT RECALL AND FIX PROBLEMS. ALSO THE BRAKE SYSTEM IS FAULTY AND UNSAFE IT LOSES PRESSURE AND EVEN BRAKING AT VARIOUS SPEEDS. AFTER TAKING IT TO THE DEALERSHIP THEY CAN NOT FIGURE OUT WHY AND SAY IT IS VARIOUS PARTS AND SHOULD BE RECALLED BUT IT IS NOT AS OF YET. GM KNOWS OF THESE ISSUES AND THE 1000S OF DOLLARS CUSTOMERS HAVE TO PAY FOR THESE REPAIRS. THIS IS WRONG AND NEEDS TO BE RECTIFIED.
NHTSA complaint #11363769 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
TL* THE CONTACT OWNS A 2014 GMC SIERRA DENALI. THE CONTACT STATED THAT WHILE DRIVING SHE HEARD A SQUEAKING NOISE COMING FROM THE BRAKES. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE CALIPER AND BRAKE PADS NEEDED TO BE REPLACED AFTER HAVING IT FOR A YEAR. THE VEHICLE WAS REPAIRED. NEITHER THE DEALER NOR THE MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 109,000.
NHTSA complaint #11326342 — an unverified report by a vehicle owner.
1-IT NEEDS TO APPLY THE BRAKE SO HARD TO MAKE IT STOP AT 100 KM/HR AND ABOVE.. 2-THERE IS A JERK ON DOWN '2ND TO 1ST "AND UP SHIFTING 1ST TO 2ND GEAR. 3-FRONT PARKING SENSORS SENSITIVITIES IS NOT ACCURATE .
NHTSA complaint #11317267 — an unverified report by a vehicle owner.
THE FIRST ISSUE IS A BLUETOOTH ISSUE. THE PHONE VOLUME GOES SILENT WHEN I GET IN MY VEHICLE. IF I CONNECT TO CAR PLAY, IT WORKS. I HAVE MISSED IMPORTANT CALLS DUE TO THIS ISSUE. THIS STARTED IN JULY OF 2019 AND ITS NOT FIXED YET. GM SAYS IT APPLE. APPLE SAYS ITS GM I DO NOT CARE JUST FIX IT. SECOND SEE BELOW IMAGES. YOU KNOW THE ISSUE. THIS HAPPENED TO ME 3 TIMES. IT STARTED 12-05-2019. THEN AGAIN 12-26-19 . SERVICED . 1-4-2020 AGAIN. 1-18 20 AGAIN AND TO SHOP UNTIL 1-23-2020. THIS TOOK A LOT OF MY TIME TALKING WITH MY DEALER. I UNDERSTAND I AM ONE OF MANY, BUT I DIDN'T SPEND OVER $66,000 TO BUY, LEASE THIS VEHICLE TO HAVE TO WASTE MY TIME. THIS COST ME TIME, MONEY AND HONESTLY EVERY TIME I START THE TRUCK I WONDER IF IT WILL REAPPEAR. I RECEIVED 2 CALLS FRO REPRESENTATIVES, GIANNA AND MICHELLE. I CALLED BACK 3 TIMES, LEFT VOICEMAIL AND HAVE HEARD NOTHING. AT THIS POINT, I AM REQUESTING FOR GM TO END MY LEASE AND I GIVE YOU THIS TRUCK BACK .
NHTSA complaint #11310027 — an unverified report by a vehicle owner.
I WAS BACKING UP AT VERY LOW SPEED THE BRAKE PEDAL GOT VERY HARD AND THE VEHICLE ACTED LIKE IT DID NOT WANT TO STOP I HAD TO KEEP PUSHING EXTREMELY HARD ON TO THE BREAK TO GET THE VEHICLE TO STOP I TRIED IT AGAIN IN DRIVE AND THE VEHICLE DID THIS EXACT SAME THING THIS TIME I NOTICED AFTER PAYING PARTICULAR ATTENTION THAT THE BRAKES WHILE THEY WERE HARD TO PRESS WERE PULSATING SO I HAD TO USE EXTREME LEG PRESSURE TO STOP THE VEHICLE. MY TRUCK HAS ALREADY HAD THE RECALL FOR THE SAME ISSUE EARLIER THIS YEAR. WHEN THIS 1ST HAPPENED IT ALMOST CAUSED ME TO WRECK INTO A FENCE
NHTSA complaint #11308038 — an unverified report by a vehicle owner.
AFTER STARTING MY VEHICLE REMOTELY USING ON-STAR, MY BRAKES STOPPED FUNCTIONING PROPERLY... AFTER REMOTE STARTING THE VEHICLE USING MY ON-STAR APP, WE ENTERED IT, DEPRESSED THE BRAKE AND PRESSED THE START BUTTON. AT THAT TIME I RECEIVED MULTIPLE ERROR MESSAGES, STATING "BRAKE SYSTEM FAILURE, 62 MPH TOP SPEED" "SERVICE ESC" " STEERING ASSIST IS REDUCED DRIVE WITH CARE." I RESTARTED THE VEHICLE A NUMBER OF TIMES AND THE ERROR MESSAGES WENT AWAY. I THEN BEGAN TO DRIVE HOME AND AFTER ABOUT 2 MILES THE ERROR MESSAGES ALL CAME BACK AND MY BRAKES STOPPED FUNCTIONING. I WAS ABLE TO USE THE FULL FORCE OF MY BODY ON THE BRAKES TO GET THE VEHICLE TO COME TO A STOP FROM AROUND 30 MPH IN MY NEIGHBORHOOD. HAD I BEEN ON THE HIGHWAY OR ON THE MAIN STREET I HAD JUST BEEN ON I LIKELY WOULD NOT HAVE BEEN ABLE TO STOP WITHOUT HITTING ANOTHER VEHICLE OR OBJECT.
NHTSA complaint #11307393 — an unverified report by a vehicle owner.
AFTER USING APP TO START THE VEHICLE, I SAT IN THE DRIVER SEAT DEPRESSED THE BRAKE AND PUSHED THE START BUTTON. IMMEDIATELY A WARNING POPPED UP SAYING ESC NEEDED SERVICE, SERVICE TRAILER BRAKE, SPEED LIMITED TO 62MPH. ADDITIONAL LIGHTS ILLUMINATED INCLUDING BRAKE, TRACTION CONTROL, ABS, AND CEL. SINCE THE DASH INDICATED THAT THE SPEED WAS REDUCED I THOUGHT IT WOULD BE SAFE TO DRIVE, HOWEVER AT THE FIRST TURN I REALIZED MY BRAKES WERE NEARLY GONE AND I WENT THROUGH THE INTERSECTION. THE BRAKES APPEARED TO HAVE LOST THE BOOST AND WERE EXTREMELY HARD TO DEPRESS MAKING IT DIFFICULT TO STOP THE VEHICLE. I LIMPED THE TRUCK HOME AND NOTIFIED THE DEALER. THE NEXT DAY I TRIED STARTING THE TRUCK AND THE BRAKES RETURNED WITH NO DASH MESSAGES ALTHOUGH THE CEL WAS STILL ILLUMINATED. THERE IS A RECALL FOR A SIMILAR ISSUE BUT IT LOOKS LIKE MY VIN IS NOT APART OF IT.
NHTSA complaint #11306648 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2019 GMC SIERRA DENALI. THE CONTACT STATED THAT WHILE DRIVING AT AN UNDISCLOSED SPEED, THE POWER FAILED TO OPERATE AS DESIGNED. THE BRAKE PEDAL WAS DEPRESSED HOWEVER, THE STOPPING DISTANCE WAS EXTENDED. THE VEHICLE WAS TAKEN TO (BALLAS BUICK GMC 5715 CENTRAL AVE, TOLEDO, OH 43615 (419) 464-7699) TO BE DIAGNOSED. THE TECHNICIAN STATED THAT THERE WAS A LOSS OF COMMUNICATION BETWEEN THE VEHICLE COMPUTERS TO THE POWER STEERING MODULE. THE VEHICLE REMAINED IN DEALER CUSTODY FOR SEVERAL WEEKS BUT WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 4,500.
NHTSA complaint #11306722 — an unverified report by a vehicle owner.
AFTER STARTING VEHICLE USING THE MYGMC APP, I RECEIVED THE FOLLOWING WARNINGS: 1. SERVICE TRAILER BRAKE SYSTEM 2. STEERING ASSIST IS REDUCED DRIVE WITH CARE 3. SERVICE ESC 4. BRAKE SYSTEM FAILURE 62 MPH TOP SPEED 5. CHECK ENGINE LIGHT. VEHICLE WAS STATIONARY AND I DID NOT DRIVE AFTERWARDS. TRUCK WAS IN FOR SERVICE LAST WEEK TO COMPLETE RECENT RECALLS AND REPLACE A LEAKY REAR WINDOW. WHEN I PICK THE TRUCK UP, I NOTICED THE LANE KEEP ASSIST, LANE DEPARTURE WARNING, INTELLIBEAM HEADLIGHT, FORWARD COLLISION ALERT, AND OTHER FUNCTIONS ASSOCIATED WITH THE WINDOW MOUNTED CAMERA SYSTEM WERE INOPERABLE. I HAVE AN APPOINTMENT ALREADY SCHEDULED FOR THAT AND WILL ADD THIS FOR THE DEALER TO INVESTIGATE. TRUCK WAS TAKEN TO DEALER FOR RECALL ON 1/7/2020 AND I GOT IT BACK ON 1/18/2020 BECAUSE OF THE WINDOW REPLACEMENT.
NHTSA complaint #11301709 — an unverified report by a vehicle owner.
I STARTED MY VEHICLE ON JANUARY 7TH 2020 AT ABOUT 4:00PM TO RETURN HOME FROM WORK I RECEIVED MULTIPLE WARNING LIGHTS AND THE CHECK ENGINE LIGHT WENT ON. THE WARNS READ "BREAK SYSTEM FAILURE 62 MPH TOO SPEED", "SERVICE ESC", "STEERING ASSIST IS REDUCED DRIVE WITH CARE", "SERVICE TRAILER BREAK SYSTEM". THE VEHICLE WOULD NOT BREAK PROPERLY I WOULD ESTIMATE THE BREAKING CAPACITY AT 30% FROM NORMAL. I TURNED OFF THE VEHICLE AND RESTARTED IT ABOUT 5 MINUTES LATER, ALL WARNINGS WERE GONE BUT THE CHECK ENGINE LIGHT WAS STILL LUMINATED, THE VEHICLES PERFORMANCE WAS REDUCED AND BREAKING WAS AT ABOUT 80% OF THE NORMAL CAPACITY. I HAVE MADE AN APPOINTMENT WITH THE DEALER FOR IMIDIATE SERVICE I SLOWLY AND CAREFULLY DROVE THE VEHICLE HOME. THE VEHICLE HAS APPROXIMATELY 1403 MILES ON IT.
NHTSA complaint #11297849 — an unverified report by a vehicle owner.
BRAKE SYSTEM FAILURE 62 MPH TOP SPEED; BRAKE WARNING LIGHT; CHECK ENGINE LIGHT; ABS LIGHT; TRACTION CONTROL LIGHT; STEERING ASSIST IS REDUCED - DRIVE WITH CARE; SERVICE TRAILER BRAKE SYSTEM.... LIGHTS ON DASH AS NOTED ABOVE. BRAKE PEDAL MAKES A CLICKING; POWER STEERING NON-EXISTENT; BRAKES WILL NOT STOP VEHICLE WITHOUT MAX PRESSURE. HAPPENED AT LOW SPEED. BUMPED INTO CART AT STORE BEFORE GAINING CONTROL. AFTER MULTIPLE SHUT DOWNS AND RESTARTS ALL LIGHTS NORMAL EXCEPT CHECK ENGINE LIGHT. BRAKES OCCASIONALLY MAKES CLICKING SOUND WITHOUT TOUCHING THEM. MILEAGE 6056
NHTSA complaint #11298009 — an unverified report by a vehicle owner.
THE VEHICLE WAS IN FOR REPLACEMENT BACK UP CAMERA MODULE AND THE DEALER STATED THAT THE FIX FOR THE ACTIVE BRAKE SYSTEM FAILURE RECALL WAS COMPLETED. AFTER STARTING THE VEHICLE IN A PARKING LOT, SEVERAL MESSAGES DISPLAYED IN THE DRIVER INFORMATION CENTER: BRAKE SYSTEM FAILURE 62 MPH TOP SPEED, SERVICE ESC, SERVICE TRAILER BRAKE SYSTEM, SERVICE BRAKE ASSIST. ADDITIONALLY, SEVERAL WARNING LIGHTS FOR THE ABS, PARKING BRAKE, TCS, CHECK ENGINE LIGHT, ETC WERE ILLUMINATED. AFTER ACKNOWLEDGING THE MESSAGES, I PLACED THE VEHICLE IN REVERSE AND NOTICED THAT THE BRAKES NEEDED TO BE PRESSED WITH FULL WEIGHT ON THEM TO GET THE VEHICLE TO STOP. I PLACED THE VEHICLE IN DRIVE TO PARK BACK IN SPACE AND THE SAME ISSUE WITH THE BRAKES PERSISTED. I TURNED THE VEHICLE ON AND OFF 4 TIMES AND THE MESSAGES FINALLY STOPPED DISPLAYING AND THE BRAKES APPEARED TO WORK AS THEY NORMALLY SHOULD, ALTHOUGH THE CHECK ENGINE LIGHT REMAINED LIT. THE VEHICLE WAS DRIVEN TO THE DEALERSHIP AND NO RESOLUTION HAS BEEN GIVEN FOR THE ISSUE TO DATE.
NHTSA complaint #11291764 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2016 GMC SIERRA DENALI. THE CONTACT STATED THAT WHILE THE VEHICLE WAS BEING REVERSED AT UNDER 5 MPH, THE BRAKE PEDAL WAS DEPRESSED BUT FAILED TO OPERATE AS INTENDED. THE CONTACT CRASHED INTO A TREE WHICH CAUSED DAMAGE TO THE PASSENGER'S SIDE DOOR, FENDER AND SIDE MIRROR. THERE WAS NO INJURIES. THE VEHICLE WAS TAKEN TO VAN BUREN BUICK GMC LOCATED AT 2257 JERICHO TURNPIKE, GARDEN CITY PARK, NY 11040, (516) 535-9508, TO BE DIAGNOSED WHICH WAS STILL PENDING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 78,000.
NHTSA complaint #11240305 — an unverified report by a vehicle owner.