Total Complaints
31 filings
GMC DENALI · model year
31 NHTSA complaints, 3 crash reports, and 1 active recall for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2001GMCDENALI carries 31 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 3 crashes, 0 fires, 2 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2001 DENALI is engine and engine cooling:engine with 3 filings, followed by seats:front assembly:head restraint (2) and power train:driveline:differential unit (2). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 1 active recall campaign, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 2 investigation files overlapping the 2001 DENALI. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
31 filings
Crashes Reported
3 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ENGINE AND ENGINE COOLING:ENGINE | 3 |
| SEATS:FRONT ASSEMBLY:HEAD RESTRAINT | 2 |
| POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT | 2 |
| FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP | 2 |
| STEERING:HYDRAULIC POWER ASSIST:PUMP | 2 |
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 2 |
| AIR BAGS | 2 |
| SERVICE BRAKES | 2 |
| ELECTRICAL SYSTEM | 1 |
| POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL | 1 |
| SUSPENSION | 1 |
| POWER TRAIN:AUTOMATIC TRANSMISSION | 1 |
| EXTERIOR LIGHTING:HEADLIGHTS | 1 |
| STEERING:HYDRAULIC POWER ASSIST SYSTEM | 1 |
| FUEL SYSTEM, GASOLINE | 1 |
SEATS:FRONT ASSEMBLY:HEAD RESTRAINT
ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH REARWARD FOLDING HEAD RESTRAINTS ON THE SECOND ROW SEATS, TWO POTENTIAL PINCH POINTS EXIST ON EACH OF THE FOLDING HEAD RESTRAINTS WHEN THE RESTRAINTS ARE FOLDED REARWARD AS THE SEATBACK IS FOLDED DOWN.
1. DASHBOARD CRACKED / CRACKING ABOVE INSTRUMENT PANEL. 2. DASHBOARD CRACK / CRACKING TOP LEFT CORNER OF AIRBAG. A. DASHBOARD CRACK IS ABOUT 6 INCHES LONG B. DASHBOARD CRACK NEAR AIRBAG IS 1 AND A HALF INCH LONG.
REAR-ENDED WHILE AT A COMPLETE STOP FOR A RED LIGHT. HIGH IMPACT; MY HEAD HIT THE STEERING WHEEL THEN THE DRIVER SIDE PANEL. MY AIRBAG DID NOT DEPLOY. MY DOOR WAS PRIED OPEN BY A PEDESTRIAN WHO CHECKED ME AND ASKED IF I KNEW WHAT HAPPENED AND WAS I OKAY. I OPENED THE DOOR, STRUGGLED OUT AND TRIED TO STAND UP TO SEE WHAT HAD HIT ME; MY LEGS WOULDN'T HOLD AND I LEANED AGAINST MY VEHICLE AND CALLED 911. I LOOKED AROUND AND AT THE VEHICLES BEHIND ME, SOME WERE SMOKING AND EVERYONE WAS IN A GENERAL STATE OF SHOCK AND PANIC. THERE SEEMED TO BE NUMEROUS VEHICLES INVOLVED IN THE CRASH. THE AMBULANCE CAME, TOOK ME AWAY AND A POLICE OFFICER CAME TO MY BEDSIDE TO LET ME KNOW THE SKETCHY DETAILS THAT HE'D LEARNED FROM THE OTHER VICTIMS AND WITNESSES. MY VEHICLE WAS TOTALED. SUBSEQUENT MRIS SHOWED THAT I HAVE MULTIPLE BULGING DISCS IN MY NECK AND LOWER BACK, SOME OF WHICH ARE PRESSING ON NERVES AND CAUSING PAIN IN MY NECK, SHOULDERS, BACK, CALVES, ANKLES AND ARMS. *TR
Mileage: 111,000
REAR-ENDED WHILE AT A COMPLETE STOP FOR A RED LIGHT. HIGH IMPACT; MY HEAD HIT THE STEERING WHEEL THEN THE DRIVER SIDE PANEL. MY AIRBAG DID NOT DEPLOY. MY DOOR WAS PRIED OPEN BY A PEDESTRIAN WHO CHECKED ME AND ASKED IF I KNEW WHAT HAPPENED AND WAS I OKAY. I OPENED THE DOOR, STRUGGLED OUT AND TRIED TO STAND UP TO SEE WHAT HAD HIT ME; MY LEGS WOULDN'T HOLD AND I LEANED AGAINST MY VEHICLE AND CALLED 911. I LOOKED AROUND AND AT THE VEHICLES BEHIND ME, SOME WERE SMOKING AND EVERYONE WAS IN A GENERAL STATE OF SHOCK AND PANIC. THERE SEEMED TO BE NUMEROUS VEHICLES INVOLVED IN THE CRASH. THE AMBULANCE CAME, TOOK ME AWAY AND A POLICE OFFICER CAME TO MY BEDSIDE TO LET ME KNOW THE SKETCHY DETAILS THAT HE'D LEARNED FROM THE OTHER VICTIMS AND WITNESSES. MY VEHICLE WAS TOTALED. SUBSEQUENT MRIS SHOWED THAT I HAVE MULTIPLE BULGING DISCS IN MY NECK AND LOWER BACK, SOME OF WHICH ARE PRESSING ON NERVES AND CAUSING PAIN IN MY NECK, SHOULDERS, BACK, CALVES, ANKLES AND ARMS. *TR
Mileage: 111,000
TRIED TO STOP AT RED LIGHT ,AND THE BRAKE PEDAL WENT ALL THE WAY DOWN I HAD TO JUMP THE CURB NOT TO HIT ANOTHER CAR. MY HUSBAND CAME AND LOOKED AT THE TRUCK AND SAW THE BRAKE LINES WERE RUSTED THROUGH AND FLUID WAS COMING OUT. HE PUT A WHOLE CAN OF BRAKE FLUID IN SO THAT I COULD MOVE THE TRUCK DOWN THE STREET TO A SERVICE CENTER. AGAIN THE REPAIR MAN SAID ALL THE BRAKE LINES ARE RUSTED OUT. WE REPAIRED ONE A SUMMER AGO WITH THE SAME ISSUE. *TR
Mileage: 94,000
BRAKE LINE RUPTURED WHILE DRIVING IN THE MALL PARKING LOT - PEDAL WENT STRAIGHT TO THE FLOOR, THANKFULLY STILL HAD SOME (TINY) BRAKE LEFT TO STOP. LOOKED UNDER THE TRUCK AND SAW BRAKE FLUID DRIPPING UNDERNEATH. ALL BRAKE LINES LOOK COMPLETELY RUSTED OUT MAKING THE VEHICLE UNDRIVABLE. *TR
Mileage: 155,000
WE HAVE NOTICED THAT OUR CARS ANTI-LOCK BRAKES ACTIVATE WHEN WE GET TO A LOW SPEED OF ABOUT 5 MPH, CAUSING OUR STOPPING DISTANCE TO BE INCREASED, WHICH ALMOST CAUSED US TO REAR-END ANOTHER CAR. WE BOUGHT THE CAR USED ABOUT 3 MONTHS AGO AND NOTICED THIS PROBLEM ON THANKSGIVING OF THIS YEAR. THERE IS A RECALL FOR THIS PROBLEM THROUGH NHTSA CAMPAIGN ID NUMBER: 05V379000. WE CALLED GMC HOTLINE AND THEY SAY IT ISN'T COVERED BY THE RECALL. I SEE THE RECALL HAS BEEN REVISED SEVERAL TIMES ALREADY. CAN ANYTHING BE DONE BEFORE AN ACCIDENT DOES OCCUR? *TR
Mileage: 159,000
2001 GMC YUKON DENALI WITH 82,133 MILES. THE LIFTGATE GLASS LOOSEN IT FROM HIS DOOR HINGES. *TR
Mileage: 82,133
MY WIFE WAS IMPACTED ON THE RIGHT FRONT SECTION OF HER 2001 GMC DENALI BY A HIT-AND-RUN MOTORIST. THE COLLISION OCCURRED IN THE EAST BOUND 22FWY IN ORANGE COUNTY CALIFORNIA. THE AIRBAGS DID NOT DEPLOY. THE IMPACT SPEED WAS MORE THAN 50MPH. THE AIRBAGS SHOULD HAVE DEPLOYED - OPINION FROM AAA INSURANCE AND AUTO MECHANICS THAT REPAIRED THE CAR. MY WIFE HAD TO ATTEND A CHIROPRACTOR FOR OVER A MONTH TO ADJUST HER SPINAL CHORD. UP TO THIS DAY SHE HAS BACK PAIN. *TR
Mileage: 32,000
TL*THE CONTACT OWNS A 2001 GMC DENALI. WHILE MAKING TURNS AT LESS THAN 5 MPH, THE ENGINE MAKES A RUMBLING NOISE AND THE VEHICLE STALLS. THE DEALER STATED THAT THERE WERE NO RECALLS FOR THE VEHICLE; HOWEVER, THE CONTACT HAS FOUND COMPLAINTS FOR HER VEHICLE REGARDING THE SAME FAILURE. THE DEALER ALSO STATED THAT THEY WOULD DIAGNOSE THE VEHICLE AT $96 PER HOUR. THE CONTACT WOULD HAVE TO PAY FOR THE REPAIRS. THE VEHICLE IS CURRENTLY PARKED AT HER RESIDENCE. THE FAILURE MILEAGE WAS 70,000 AND CURRENT MILEAGE WAS 85,000.
Mileage: 70,000
TL*THE CONTACT OWNS A 2001 GMC DENALI. EVERYTIME THE VEHICLE UNDERGOES A ROUTINE OIL CHANGE, THE CONTACT HAS TO PLACE AN EXCESSIVE AMOUNT OF OIL BACK IN THE ENGINE SHORTLY AFTERWARDS. IN ADDITION, THE BATTERY TERMINAL CABLES SPORADICALLY LOOSEN AND CAUSE THE ALTERNATOR TO FAIL. THIRDLY, WHILE DRIVING AT VARIOUS SPEEDS, THE 4 WHEEL DRIVE SPONTANEOUSLY ENGAGES. LASTLY, THE VEHICLE IDLES ROUGHLY WHEN IT IS STARTED. THE VEHICLE WAS TAKEN TO THE DEALER ON NUMEROUS OCCASIONS, BUT THEY COULD NOT CORRECT THE FAILURE. THE CONTACT HAS COPIES OF THE VEHICLE'S SERVICE HISTORY. THE FAILURE MILEAGE WAS 90,000 AND CURRENT MILEAGE WAS 163,000.
Mileage: 90,000
TL*THE CONTACT OWNS A 2001 GMC DENALI. EVERYTIME THE VEHICLE UNDERGOES A ROUTINE OIL CHANGE, THE CONTACT HAS TO PLACE AN EXCESSIVE AMOUNT OF OIL BACK IN THE ENGINE SHORTLY AFTERWARDS. IN ADDITION, THE BATTERY TERMINAL CABLES SPORADICALLY LOOSEN AND CAUSE THE ALTERNATOR TO FAIL. THIRDLY, WHILE DRIVING AT VARIOUS SPEEDS, THE 4 WHEEL DRIVE SPONTANEOUSLY ENGAGES. LASTLY, THE VEHICLE IDLES ROUGHLY WHEN IT IS STARTED. THE VEHICLE WAS TAKEN TO THE DEALER ON NUMEROUS OCCASIONS, BUT THEY COULD NOT CORRECT THE FAILURE. THE CONTACT HAS COPIES OF THE VEHICLE'S SERVICE HISTORY. THE FAILURE MILEAGE WAS 90,000 AND CURRENT MILEAGE WAS 163,000.
Mileage: 90,000
TL*THE CONTACT OWNS A 2001 GMC DENALI. EVERYTIME THE VEHICLE UNDERGOES A ROUTINE OIL CHANGE, THE CONTACT HAS TO PLACE AN EXCESSIVE AMOUNT OF OIL BACK IN THE ENGINE SHORTLY AFTERWARDS. IN ADDITION, THE BATTERY TERMINAL CABLES SPORADICALLY LOOSEN AND CAUSE THE ALTERNATOR TO FAIL. THIRDLY, WHILE DRIVING AT VARIOUS SPEEDS, THE 4 WHEEL DRIVE SPONTANEOUSLY ENGAGES. LASTLY, THE VEHICLE IDLES ROUGHLY WHEN IT IS STARTED. THE VEHICLE WAS TAKEN TO THE DEALER ON NUMEROUS OCCASIONS, BUT THEY COULD NOT CORRECT THE FAILURE. THE CONTACT HAS COPIES OF THE VEHICLE'S SERVICE HISTORY. THE FAILURE MILEAGE WAS 90,000 AND CURRENT MILEAGE WAS 163,000.
Mileage: 90,000
PARKING BRAKE NEVER WORKS. HAD COMPLETE SYSTEM REPLACED AT DEALERSHIP 3 YEARS AGO. DID NOT IMPROVE THE STOPPING CAPABILITIES. OTHER INDIVIDUALS WITH THE SAME VEHICLE IDENTIFY HAVE EXPLAINED THAT THIS IS A PROBLEM THEY ALSO EXPERIENCE. I AM AFRAID THAT THERE IS NO BACKUP BRAKE SYSTEM IN THE EVENT OF A PRIMARY BRAKE SYSTEM FAILURE. *NM
Mileage: 37,000
I WAS JUST WONDERING WHY MY 2001 YUKON DENALI WAS NOT COVERED BY THE RECALL FOR DEFECTIVE ABS SENSORS. I HAVE HAD TWO 2001 TAHOE'S AND A 2002 AVALANCHE ALL OF WHICH WERE COVERED BUT MY DENALI WAS NOT. I HAD TO PAY TO HAVE THE ABS SENSORS REPLACED ON THIS VEHICLE. I DON'T UNDERSTAND HOW YOU CAN LET GM GET AWAY WITH RECALLING THE CHEVROLET BRAND BUT NOT THE GMC BRAND. IT'S THE SAME PART NUMBER AND SAME PARTS USED ON BOTH BRANDS. PLEASE REPLY WITH A JUSTIFICATION IF YOU CAN SO THAT I MAY BETTER UNDERSTAND THE REASONING. THANK YOU.
DT*: THE CONTACT STATED WHILE DRIVING 60MPH UNDER NORMAL DRIVING CONDITIONS, THERE WAS A RATTLING NOISE FROM UNDERNEATH THE VEHICLE AND THE VEHICLE PROCEEDED TO STALL WITHOUT WARNING. THE CONTACT MANAGED TO PULL OVER AND PARK THE VEHICLE. UPON FURTHER INVESTIGATION, THE DRIVELINE DIFFERENTIAL UNIT WAS BROKEN INTO PIECES. DUE TO THE INABILITY OF THE VEHICLE BEING DRIVEN, THE VEHICLE WAS TOWED HOME. A MECHANIC FROM A DEALERSHIP INSPECTED THE VEHICLE. THE MECHANIC SUGGESTED REPLACING THE DRIVELINE DIFFERENTIAL UNIT.
Mileage: 68,640
1. VEHICLE QUIT RUNNING ON HIGHWAY EXIT RAMP. ENGINE WOULD CRANK, BUT NOT START. PUSHED TO SIDE OF ROAD. AFTER SEVERAL MORE ATTEMPTS TO START, ENGINE DID START. WOULD NOT RESTART NEXT DAY. 2. FUEL PUMP WIRING IN THE GAS TANK MELTED AND ONE TERMINAL IN THE MODULE'S CONNECTOR EXHIBITED SIGNS OF ARCING/HEAT. 3. BOTH THE FUEL PUMP/SENDING UNIT MODULE AND THE CONNECTOR WERE REPLACED. I DO HAVE POSSESSION OF BOTH PARTS. *NM
Mileage: 50,600
DT: THE CONTACT STATED THE TRANSMISSION SEAL WAS DEFECTIVE AFTER A CERTAIN AMOUNT OF MILES, IT ALLOWED THE COOLING SYSTEM TO LEAK INTO THE TRANSMISSION. WHEN ACCELERATING THE TRANSMISSION WOULD DOWN SHIFT INTO FIRST GEAR, THIS WOULD MAKE THE VEHICLE JUMP. THE TRANSMISSION FAILED AT AN INTERSECTION. WHEN THIS OCCURRED THE VEHICLE HAD TO BE DRIVEN HOME AND TO THE DEALERSHIP IN FIRST GEAR. IT WAS TAKEN TO THE DEALERSHIP WHO DIAGNOSED THE PROBLEM. THE TRANSMISSION SEAL BROKE BECAUSE THE TRANSMISSION WAS DOWN SHIFTING TOO HARD. *AK UPDATED 11/16/2005 - THE HEADLAMP LENS WAS LOOSE. THE POWER STEERING PULLEY WAS OUT OF POSITION AND CAUSED THE SERPENTINE BELT IS SQUEAKING. THE PULLEY WAS REPOSITIONED. A SMALL FUEL VAPOR LEAK WAS DETECTED POSSIBLY FROM FUEL FILLER CAP NOT BEING FULLY TIGHTENED. THE FUEL PUMP LEAKED WHEN THE TANK WAS FULL. IT WAS NECESSARY TO REPLACE THE FUEL TANK SENDING UNIT. *NM A FRONT END ALIGNMENT WAS PERFOMED ON THE VEHICLE. UPDATED 01/19/06.*JB
Mileage: 64,300
DT: THE CONTACT STATED THE TRANSMISSION SEAL WAS DEFECTIVE AFTER A CERTAIN AMOUNT OF MILES, IT ALLOWED THE COOLING SYSTEM TO LEAK INTO THE TRANSMISSION. WHEN ACCELERATING THE TRANSMISSION WOULD DOWN SHIFT INTO FIRST GEAR, THIS WOULD MAKE THE VEHICLE JUMP. THE TRANSMISSION FAILED AT AN INTERSECTION. WHEN THIS OCCURRED THE VEHICLE HAD TO BE DRIVEN HOME AND TO THE DEALERSHIP IN FIRST GEAR. IT WAS TAKEN TO THE DEALERSHIP WHO DIAGNOSED THE PROBLEM. THE TRANSMISSION SEAL BROKE BECAUSE THE TRANSMISSION WAS DOWN SHIFTING TOO HARD. *AK UPDATED 11/16/2005 - THE HEADLAMP LENS WAS LOOSE. THE POWER STEERING PULLEY WAS OUT OF POSITION AND CAUSED THE SERPENTINE BELT IS SQUEAKING. THE PULLEY WAS REPOSITIONED. A SMALL FUEL VAPOR LEAK WAS DETECTED POSSIBLY FROM FUEL FILLER CAP NOT BEING FULLY TIGHTENED. THE FUEL PUMP LEAKED WHEN THE TANK WAS FULL. IT WAS NECESSARY TO REPLACE THE FUEL TANK SENDING UNIT. *NM A FRONT END ALIGNMENT WAS PERFOMED ON THE VEHICLE. UPDATED 01/19/06.*JB
Mileage: 64,300
DT: THE CONTACT STATED THE TRANSMISSION SEAL WAS DEFECTIVE AFTER A CERTAIN AMOUNT OF MILES, IT ALLOWED THE COOLING SYSTEM TO LEAK INTO THE TRANSMISSION. WHEN ACCELERATING THE TRANSMISSION WOULD DOWN SHIFT INTO FIRST GEAR, THIS WOULD MAKE THE VEHICLE JUMP. THE TRANSMISSION FAILED AT AN INTERSECTION. WHEN THIS OCCURRED THE VEHICLE HAD TO BE DRIVEN HOME AND TO THE DEALERSHIP IN FIRST GEAR. IT WAS TAKEN TO THE DEALERSHIP WHO DIAGNOSED THE PROBLEM. THE TRANSMISSION SEAL BROKE BECAUSE THE TRANSMISSION WAS DOWN SHIFTING TOO HARD. *AK UPDATED 11/16/2005 - THE HEADLAMP LENS WAS LOOSE. THE POWER STEERING PULLEY WAS OUT OF POSITION AND CAUSED THE SERPENTINE BELT IS SQUEAKING. THE PULLEY WAS REPOSITIONED. A SMALL FUEL VAPOR LEAK WAS DETECTED POSSIBLY FROM FUEL FILLER CAP NOT BEING FULLY TIGHTENED. THE FUEL PUMP LEAKED WHEN THE TANK WAS FULL. IT WAS NECESSARY TO REPLACE THE FUEL TANK SENDING UNIT. *NM A FRONT END ALIGNMENT WAS PERFOMED ON THE VEHICLE. UPDATED 01/19/06.*JB
Mileage: 64,300
DT: THE CONTACT STATED THE TRANSMISSION SEAL WAS DEFECTIVE AFTER A CERTAIN AMOUNT OF MILES, IT ALLOWED THE COOLING SYSTEM TO LEAK INTO THE TRANSMISSION. WHEN ACCELERATING THE TRANSMISSION WOULD DOWN SHIFT INTO FIRST GEAR, THIS WOULD MAKE THE VEHICLE JUMP. THE TRANSMISSION FAILED AT AN INTERSECTION. WHEN THIS OCCURRED THE VEHICLE HAD TO BE DRIVEN HOME AND TO THE DEALERSHIP IN FIRST GEAR. IT WAS TAKEN TO THE DEALERSHIP WHO DIAGNOSED THE PROBLEM. THE TRANSMISSION SEAL BROKE BECAUSE THE TRANSMISSION WAS DOWN SHIFTING TOO HARD. *AK UPDATED 11/16/2005 - THE HEADLAMP LENS WAS LOOSE. THE POWER STEERING PULLEY WAS OUT OF POSITION AND CAUSED THE SERPENTINE BELT IS SQUEAKING. THE PULLEY WAS REPOSITIONED. A SMALL FUEL VAPOR LEAK WAS DETECTED POSSIBLY FROM FUEL FILLER CAP NOT BEING FULLY TIGHTENED. THE FUEL PUMP LEAKED WHEN THE TANK WAS FULL. IT WAS NECESSARY TO REPLACE THE FUEL TANK SENDING UNIT. *NM A FRONT END ALIGNMENT WAS PERFOMED ON THE VEHICLE. UPDATED 01/19/06.*JB
Mileage: 64,300
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.