FaultScore report
Owners have filed 52 complaints about the 2003 GMC Yukon Denali XL with NHTSA between 2009 and 2018. The largest single group is the brakes. Across this model's run it ranks 4 of 13 worst.
FaultScore 49/100
Higher is worse. Measured against the other years of the GMC Yukon Denali XL.
How this is worked out52
Complaints
8
Crashes reported
0
Fires reported
0
Injuries reported
145,000 mi
Median mileage at failure
Half of reported failures happened before this
0%
Failed under 36,000 miles
Inside a typical bumper-to-bumper warranty
The letter says how bad. This says what kind — whether this year drew an unusual number of complaints, unusually dangerous ones, or failures that arrived unusually early.
Click any bar to open that year's report.
Every complaint is filed against a part. Follow any row for the complaints about that part alone.
1 crashes, 0 fires · median 172,500 mi
2 crashes, 0 fires · median 160,000 mi
Median failure at 155,500 miles
2 crashes, 0 fires · median 160,490 mi
Median failure at 90,000 miles
Median failure at 70,787 miles
1 crashes, 0 fires · median 170,000 mi
Odometer readings owners gave when they filed. About half of all complaints include one.
A spike years after the car went on sale usually means a part wearing out on schedule across the whole fleet — the kind of pattern no single owner can see from inside their own car.
Reports where the owner recorded a crash, a fire, an injury or a death.
SERVICE BRAKES
BRAKE PIPE BLEW OUT FROM CORROSION... LIGHT FRONT DAMAGE TO GMC AND REAR END DAMAGE TO CAR IN FRONT FROM LACK OF BRAKING POWER.
NHTSA complaint #10678399 — an unverified report by a vehicle owner.
POWER TRAIN
VEHICLE POWERS DOWN WITHOUT ANY PATTERN, RHYME OR REASON. IT WILL DO IT AT 5 MPH, AND AT 55 MPH, WHEN DRIVEN A LOT, AND WHEN NOT. REDUCED ENGINE POWER LIGHT TURNS ON, VEHICLE SUDDENLY SLOWS TO 25 MPH MAX, STEERING BECOMES HARD, BRAKES TOO. THEN WILL TOTALLY SHUT OFF IMMEDIATELY. I HAVE REPLACED THE BATTERY, THROTTLE BODY ASSEMBLY AND WIRING HARNESS TWICE. FUSES, FUEL PUMP AND FILTERS, OIL, AND EVERYTHING ELSE AS RECOMMENDED. IT PUT ME IN THE DITCH. IT STRANDED ME IN THE CENTER OF A FREEWAY IN WINTER. WHEN IT SITS FOR A WHILE, IT RESETS, ONLY TO DO IT AGAIN. T/C LIGHT TURNS ON ALSO. I FOUND OUT THAT I CAN MANUALLY RESET THE REDUCED ENGINE POWER FOR A FEW MOMENTS (TO GET OUT OF THE CENTER OF THE ROAD) BY TURNING THE IGNITION SWITCH ON AND OFF VERY FAST. IT IS A EXTREME SAFETY HAZARD! I HAVEN'T DRIVEN IT IN MONTHS DUE TO ABSOLUTE FEAR FOR MY LIFE. WHEN ITS IN REDUCED ENGINE POWER MODE, I CAN'T GET IT TO GO ABOVE 25, AND GOING UP HILLS CAN'T GO ABOVE 5MPH. IF I AM PULLING A TRAILER, IT STARTS TO GO BACKWARDS. THIS THING IS GOING TO KILL SOMEONE! PLEASE HELP
NHTSA complaint #10660403 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
VEHICLE POWERS DOWN WITHOUT ANY PATTERN, RHYME OR REASON. IT WILL DO IT AT 5 MPH, AND AT 55 MPH, WHEN DRIVEN A LOT, AND WHEN NOT. REDUCED ENGINE POWER LIGHT TURNS ON, VEHICLE SUDDENLY SLOWS TO 25 MPH MAX, STEERING BECOMES HARD, BRAKES TOO. THEN WILL TOTALLY SHUT OFF IMMEDIATELY. I HAVE REPLACED THE BATTERY, THROTTLE BODY ASSEMBLY AND WIRING HARNESS TWICE. FUSES, FUEL PUMP AND FILTERS, OIL, AND EVERYTHING ELSE AS RECOMMENDED. IT PUT ME IN THE DITCH. IT STRANDED ME IN THE CENTER OF A FREEWAY IN WINTER. WHEN IT SITS FOR A WHILE, IT RESETS, ONLY TO DO IT AGAIN. T/C LIGHT TURNS ON ALSO. I FOUND OUT THAT I CAN MANUALLY RESET THE REDUCED ENGINE POWER FOR A FEW MOMENTS (TO GET OUT OF THE CENTER OF THE ROAD) BY TURNING THE IGNITION SWITCH ON AND OFF VERY FAST. IT IS A EXTREME SAFETY HAZARD! I HAVEN'T DRIVEN IT IN MONTHS DUE TO ABSOLUTE FEAR FOR MY LIFE. WHEN ITS IN REDUCED ENGINE POWER MODE, I CAN'T GET IT TO GO ABOVE 25, AND GOING UP HILLS CAN'T GO ABOVE 5MPH. IF I AM PULLING A TRAILER, IT STARTS TO GO BACKWARDS. THIS THING IS GOING TO KILL SOMEONE! PLEASE HELP
NHTSA complaint #10660403 — an unverified report by a vehicle owner.
ENGINE
VEHICLE POWERS DOWN WITHOUT ANY PATTERN, RHYME OR REASON. IT WILL DO IT AT 5 MPH, AND AT 55 MPH, WHEN DRIVEN A LOT, AND WHEN NOT. REDUCED ENGINE POWER LIGHT TURNS ON, VEHICLE SUDDENLY SLOWS TO 25 MPH MAX, STEERING BECOMES HARD, BRAKES TOO. THEN WILL TOTALLY SHUT OFF IMMEDIATELY. I HAVE REPLACED THE BATTERY, THROTTLE BODY ASSEMBLY AND WIRING HARNESS TWICE. FUSES, FUEL PUMP AND FILTERS, OIL, AND EVERYTHING ELSE AS RECOMMENDED. IT PUT ME IN THE DITCH. IT STRANDED ME IN THE CENTER OF A FREEWAY IN WINTER. WHEN IT SITS FOR A WHILE, IT RESETS, ONLY TO DO IT AGAIN. T/C LIGHT TURNS ON ALSO. I FOUND OUT THAT I CAN MANUALLY RESET THE REDUCED ENGINE POWER FOR A FEW MOMENTS (TO GET OUT OF THE CENTER OF THE ROAD) BY TURNING THE IGNITION SWITCH ON AND OFF VERY FAST. IT IS A EXTREME SAFETY HAZARD! I HAVEN'T DRIVEN IT IN MONTHS DUE TO ABSOLUTE FEAR FOR MY LIFE. WHEN ITS IN REDUCED ENGINE POWER MODE, I CAN'T GET IT TO GO ABOVE 25, AND GOING UP HILLS CAN'T GO ABOVE 5MPH. IF I AM PULLING A TRAILER, IT STARTS TO GO BACKWARDS. THIS THING IS GOING TO KILL SOMEONE! PLEASE HELP
NHTSA complaint #10660403 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
WHEN DRIVING AT LOW SPEEDS (LESS THAN 10 MILES PER HOUR) OR STARTING FROM A STOP, THE TRACTION CONTROL WILL AUTOMATICALLY ENGAGE WHEN THE GAS PEDAL IS APPLIED. WHEN THE TRACTION CONTROL ENGAGES, A TOTAL LOSS OF INPUT TO THE ENGINE RESULTS AND THE VEHICLE DOES NOT MOVE (IT ESSENTIALLY STALLS). I WAS ALMOST STRUCK IN AN INTERSECTION WHILE WAITING TO MAKE A LEFT TURN ON A GREEN LIGHT IN EARLY DECEMBER OF 2011. I WAS STOPPED IN THE MIDDLE OF THE INTERSECTION WAITING TO TURN LEFT. WHEN I ATTEMPTED TO TURN LEFT, I GAVE THE GAS PEDAL SOME INPUT, THE TRACTION CONTROL ENGAGED, AND MY VEHICLE STOPPED BECAUSE THERE WAS NO ENGINE INPUT AND WAS ALMOST HIT BY AN ON-COMING CAR. LUCKILY, THIS HAD HAPPENED BEFORE AND I KNEW TO EITHER FLOOR THE GAS PEDAL OR TO LET OFF THE GAS ENTIRELY AND THEN FLOOR IT AGAIN TO GET THE TRACTION CONTROL TO DISENGAGE AND GET POWER TO THE ENGINE. ANOTHER RELATED ISSUE IS THE ABS ENGAGING FOR NO REASON. THIS ALSO HAPPENS AT LOW SPEEDS (LESS THAN 10 MPH). WHEN THE ABS ENGAGES, THE VEHICLE WILL TRAVEL ANOTHER TWO TO THREE FEET PRIOR TO STOPPING. THE ABS ISSUE RESULTED IN MY HITTING A POLE IN A PARKING LOT. IT TOOK SEVERAL YEARS TO FINALLY DETERMINE WHAT THE ISSUE WAS AND IT TURNS OUT IT WAS A RESULT OF FRONT WHEEL SPEED SENSOR CORROSION AND AN INCREASED AIR GAP BETWEEN THE WHEEL SPEED SENSOR AND THE RELUCTOR RING DUE TO RUST AND DEBRIS BUILT UP ON THE SENSOR MOUNTING SURFACE. GM ACKNOWLEDGED THIS WITH A SAFETY RECALL (#05068C: PRODUCT SAFETY) FOR SOME VEHICLE MODEL YEARS 1999-2002. THIS IS A SERIOUS SAFETY ISSUE AND GM FAILS TO RECOGNIZE THAT VEHICLES LIKE MINE (A 2003) AND EVEN LATER MODELS HAVE THE SAME PROBLEM. WHAT IS EVEN MORE FRUSTRATING IS THAT THE DEALERSHIP COULD NOT PROPERLY DIAGNOSE THE PROBLEM FOR SEVERAL YEARS BECAUSE THEY COULD NOT "REPLICATE THE PROBLEM ." I WOULD ENCOURAGE THE NHSTA TO INVESTIGATE THIS ISSUE.
NHTSA complaint #10441727 — an unverified report by a vehicle owner.
ENGINE AND ENGINE COOLING
WHEN DRIVING AT LOW SPEEDS (LESS THAN 10 MILES PER HOUR) OR STARTING FROM A STOP, THE TRACTION CONTROL WILL AUTOMATICALLY ENGAGE WHEN THE GAS PEDAL IS APPLIED. WHEN THE TRACTION CONTROL ENGAGES, A TOTAL LOSS OF INPUT TO THE ENGINE RESULTS AND THE VEHICLE DOES NOT MOVE (IT ESSENTIALLY STALLS). I WAS ALMOST STRUCK IN AN INTERSECTION WHILE WAITING TO MAKE A LEFT TURN ON A GREEN LIGHT IN EARLY DECEMBER OF 2011. I WAS STOPPED IN THE MIDDLE OF THE INTERSECTION WAITING TO TURN LEFT. WHEN I ATTEMPTED TO TURN LEFT, I GAVE THE GAS PEDAL SOME INPUT, THE TRACTION CONTROL ENGAGED, AND MY VEHICLE STOPPED BECAUSE THERE WAS NO ENGINE INPUT AND WAS ALMOST HIT BY AN ON-COMING CAR. LUCKILY, THIS HAD HAPPENED BEFORE AND I KNEW TO EITHER FLOOR THE GAS PEDAL OR TO LET OFF THE GAS ENTIRELY AND THEN FLOOR IT AGAIN TO GET THE TRACTION CONTROL TO DISENGAGE AND GET POWER TO THE ENGINE. ANOTHER RELATED ISSUE IS THE ABS ENGAGING FOR NO REASON. THIS ALSO HAPPENS AT LOW SPEEDS (LESS THAN 10 MPH). WHEN THE ABS ENGAGES, THE VEHICLE WILL TRAVEL ANOTHER TWO TO THREE FEET PRIOR TO STOPPING. THE ABS ISSUE RESULTED IN MY HITTING A POLE IN A PARKING LOT. IT TOOK SEVERAL YEARS TO FINALLY DETERMINE WHAT THE ISSUE WAS AND IT TURNS OUT IT WAS A RESULT OF FRONT WHEEL SPEED SENSOR CORROSION AND AN INCREASED AIR GAP BETWEEN THE WHEEL SPEED SENSOR AND THE RELUCTOR RING DUE TO RUST AND DEBRIS BUILT UP ON THE SENSOR MOUNTING SURFACE. GM ACKNOWLEDGED THIS WITH A SAFETY RECALL (#05068C: PRODUCT SAFETY) FOR SOME VEHICLE MODEL YEARS 1999-2002. THIS IS A SERIOUS SAFETY ISSUE AND GM FAILS TO RECOGNIZE THAT VEHICLES LIKE MINE (A 2003) AND EVEN LATER MODELS HAVE THE SAME PROBLEM. WHAT IS EVEN MORE FRUSTRATING IS THAT THE DEALERSHIP COULD NOT PROPERLY DIAGNOSE THE PROBLEM FOR SEVERAL YEARS BECAUSE THEY COULD NOT "REPLICATE THE PROBLEM ." I WOULD ENCOURAGE THE NHSTA TO INVESTIGATE THIS ISSUE.
NHTSA complaint #10441727 — an unverified report by a vehicle owner.
In the owners' own words, exactly as filed with NHTSA.
UNKNOWN OR OTHER
THE CLUSTER FROM ALL THE DASHBOARD HAS STOP WORKING THE SPEEDOMETER THE GAUGES EVERYTHING
NHTSA complaint #11064850 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
THE CLUSTER FROM ALL THE DASHBOARD HAS STOP WORKING THE SPEEDOMETER THE GAUGES EVERYTHING
NHTSA complaint #11064850 — an unverified report by a vehicle owner.
ELECTRONIC STABILITY CONTROL (ESC)
THE CLUSTER FROM ALL THE DASHBOARD HAS STOP WORKING THE SPEEDOMETER THE GAUGES EVERYTHING
NHTSA complaint #11064850 — an unverified report by a vehicle owner.
SERVICE BRAKES
THERE IS NO WARNING CODE FOR THE HYDRAULIC BRAKE BOOSTER WHEN IT STARTS TO GO BAD THAT SHOWS UP ON THE ABS/ODB SCANNER. YOU WILL BE DRIVING AND ALL OF THE SUDDEN YOUR STEERING GETS STIFF, THE BRAKE PEDAL IS HARD TO PRESS AND YOU CAN'T STOP AS GOOD AS YOUR USED TO IN THE VEHICLE. THIS ISSUE CAN CAUSE ACCIDENTS IF SOMEONE STOPS SUDDENLY IN FRONT OF YOU.
NHTSA complaint #11030616 — an unverified report by a vehicle owner.
ELECTRONIC STABILITY CONTROL (ESC)
THERE IS NO WARNING CODE FOR THE HYDRAULIC BRAKE BOOSTER WHEN IT STARTS TO GO BAD THAT SHOWS UP ON THE ABS/ODB SCANNER. YOU WILL BE DRIVING AND ALL OF THE SUDDEN YOUR STEERING GETS STIFF, THE BRAKE PEDAL IS HARD TO PRESS AND YOU CAN'T STOP AS GOOD AS YOUR USED TO IN THE VEHICLE. THIS ISSUE CAN CAUSE ACCIDENTS IF SOMEONE STOPS SUDDENLY IN FRONT OF YOU.
NHTSA complaint #11030616 — an unverified report by a vehicle owner.
SERVICE BRAKES
THE STABILITY CONTROL WARNING HAS COME ON SEVERAL TIMES ON MY VEHICLE. THE BRAKES DO NOT WORK, AS YOU HAVE TO PUSH ALL THE WAY TO THE FLOOR AND SOMETIMES IT TAKES TIME BEFORE THE VEHICLE STOPS. I HAVE HAD BRAKE LINES REPAIRS AND THE PROBLEM STILL IS THERE. WE CANNOT USE VEHICLE UNTIL THE ISSUE IS RESOLVED. OUR MECHANIC ADVISED US TO FILE A COMPLAINT ON THIS ISSUE BECAUSE IT IS AN ACTIVE ISSUE WITH GMC DENALI YUKON'S FOR YEARS. WE NEED ASSISTANCE TO HAVE THIS RESOLVED TO USE OUR VEHICLE.
NHTSA complaint #10888746 — an unverified report by a vehicle owner.
ELECTRONIC STABILITY CONTROL (ESC)
THE STABILITY CONTROL WARNING HAS COME ON SEVERAL TIMES ON MY VEHICLE. THE BRAKES DO NOT WORK, AS YOU HAVE TO PUSH ALL THE WAY TO THE FLOOR AND SOMETIMES IT TAKES TIME BEFORE THE VEHICLE STOPS. I HAVE HAD BRAKE LINES REPAIRS AND THE PROBLEM STILL IS THERE. WE CANNOT USE VEHICLE UNTIL THE ISSUE IS RESOLVED. OUR MECHANIC ADVISED US TO FILE A COMPLAINT ON THIS ISSUE BECAUSE IT IS AN ACTIVE ISSUE WITH GMC DENALI YUKON'S FOR YEARS. WE NEED ASSISTANCE TO HAVE THIS RESOLVED TO USE OUR VEHICLE.
NHTSA complaint #10888746 — an unverified report by a vehicle owner.
SERVICE BRAKES
I LET MY FREIND TAKE VEHICLE AND SHE SAID WHEN SHE BRAKED THE PEDAL WENT TO FLOOR.SHE WAS HALF MILE AWAY AND MADE IT BACK .I LOOKED AT LEVEL IN MASTER CYLINDER AND HAD TO PUT FLUID IN.NOTICED BRAKE FLUID ON THE UNDERCARRIGE WHICH LED ME TO RUSTED BRAKE LINE UP FRONT.
NHTSA complaint #10781424 — an unverified report by a vehicle owner.
SERVICE BRAKES
I WAS DRIVING WITH MY 14MONTH OLD BABY IN THE CAR AND ALL OF A SUDDEN I HAD NO BRAKES AT ALL. MY PARKING BRAKE COULDN'T STOP ME EITHER SO I PUT THE CAR IN NEUTRAL AND THEN FORCED IT INTO PARK SO I DIDN'T CRASH. THE BRAKE LINES ARE COMPLETELY CORRODED AND I DIDN'T HAVE ANY NOTICE OR IDEA UNTIL THE BRAKES WERE ALREADY GONE.
NHTSA complaint #10748915 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
JUST BOUGHT CAR ELECTRICAL HAS BEEN ACTING UP FOR A WHILE NOW (30 DAYS) AND NOW DASH HAS GONE OUT SUNROOF WONT OPEN PR CLOSE AND DRIVER SIDE PASSENGER WINDOW DOESNT WORK AUTO STORE WONT FIX OR TAKE BACK CAR
NHTSA complaint #10735912 — an unverified report by a vehicle owner.
ELECTRONIC STABILITY CONTROL (ESC)
JUST BOUGHT CAR ELECTRICAL HAS BEEN ACTING UP FOR A WHILE NOW (30 DAYS) AND NOW DASH HAS GONE OUT SUNROOF WONT OPEN PR CLOSE AND DRIVER SIDE PASSENGER WINDOW DOESNT WORK AUTO STORE WONT FIX OR TAKE BACK CAR
NHTSA complaint #10735912 — an unverified report by a vehicle owner.
SERVICE BRAKES
A DOG RAN OUT IN FRONT OF ME I APPLIED MY BRAKES AND THE PEDAL WENT TO THE FLOOR HAD IT CHECKED AT BALE CHEVROLET IN LITTLE ROCK ARK. WANTED TO CHARGE ME 6800.00 TO REPAIR HAD IT TOWED BACK TO IL. WHERE I LIVE THAT COST WAS 500.00 BESIDES 200 MILES THAT WAS COVERED BY AAA I,M A 62 YR OLD WOMAN HAD MY GRANDCHILDREN WITH ME IN LITTLE ROCK ARK THIS EXPERIENCE WAS THE SCARIEST TIME IN MY LIFETIME NO WARNING JUST ALL OF A SUDDEN NO BRAKES IN THE WORST TRAFFIC EVER. THE MONEY SPENT ON THIS TRIP WAS VERY EXPENSIVE NOT TO MENTION THE STRESS.
NHTSA complaint #10701647 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
VEHICLE WENT INTO REDUCED ENGINE POWER AND STABILTRAK WARNING LIGHT CAME ON. REDUCED SPEED FROM 60 TO 10MPH. NOW OCCURS ON A REGULAR BASIS.
NHTSA complaint #10681410 — an unverified report by a vehicle owner.
ENGINE
VEHICLE WENT INTO REDUCED ENGINE POWER AND STABILTRAK WARNING LIGHT CAME ON. REDUCED SPEED FROM 60 TO 10MPH. NOW OCCURS ON A REGULAR BASIS.
NHTSA complaint #10681410 — an unverified report by a vehicle owner.
ELECTRONIC STABILITY CONTROL (ESC)
VEHICLE WENT INTO REDUCED ENGINE POWER AND STABILTRAK WARNING LIGHT CAME ON. REDUCED SPEED FROM 60 TO 10MPH. NOW OCCURS ON A REGULAR BASIS.
NHTSA complaint #10681410 — an unverified report by a vehicle owner.
SERVICE BRAKES
BRAKE PIPE BLEW OUT FROM CORROSION... LIGHT FRONT DAMAGE TO GMC AND REAR END DAMAGE TO CAR IN FRONT FROM LACK OF BRAKING POWER.
NHTSA complaint #10678399 — an unverified report by a vehicle owner.
POWER TRAIN
VEHICLE POWERS DOWN WITHOUT ANY PATTERN, RHYME OR REASON. IT WILL DO IT AT 5 MPH, AND AT 55 MPH, WHEN DRIVEN A LOT, AND WHEN NOT. REDUCED ENGINE POWER LIGHT TURNS ON, VEHICLE SUDDENLY SLOWS TO 25 MPH MAX, STEERING BECOMES HARD, BRAKES TOO. THEN WILL TOTALLY SHUT OFF IMMEDIATELY. I HAVE REPLACED THE BATTERY, THROTTLE BODY ASSEMBLY AND WIRING HARNESS TWICE. FUSES, FUEL PUMP AND FILTERS, OIL, AND EVERYTHING ELSE AS RECOMMENDED. IT PUT ME IN THE DITCH. IT STRANDED ME IN THE CENTER OF A FREEWAY IN WINTER. WHEN IT SITS FOR A WHILE, IT RESETS, ONLY TO DO IT AGAIN. T/C LIGHT TURNS ON ALSO. I FOUND OUT THAT I CAN MANUALLY RESET THE REDUCED ENGINE POWER FOR A FEW MOMENTS (TO GET OUT OF THE CENTER OF THE ROAD) BY TURNING THE IGNITION SWITCH ON AND OFF VERY FAST. IT IS A EXTREME SAFETY HAZARD! I HAVEN'T DRIVEN IT IN MONTHS DUE TO ABSOLUTE FEAR FOR MY LIFE. WHEN ITS IN REDUCED ENGINE POWER MODE, I CAN'T GET IT TO GO ABOVE 25, AND GOING UP HILLS CAN'T GO ABOVE 5MPH. IF I AM PULLING A TRAILER, IT STARTS TO GO BACKWARDS. THIS THING IS GOING TO KILL SOMEONE! PLEASE HELP
NHTSA complaint #10660403 — an unverified report by a vehicle owner.
VEHICLE SPEED CONTROL
VEHICLE POWERS DOWN WITHOUT ANY PATTERN, RHYME OR REASON. IT WILL DO IT AT 5 MPH, AND AT 55 MPH, WHEN DRIVEN A LOT, AND WHEN NOT. REDUCED ENGINE POWER LIGHT TURNS ON, VEHICLE SUDDENLY SLOWS TO 25 MPH MAX, STEERING BECOMES HARD, BRAKES TOO. THEN WILL TOTALLY SHUT OFF IMMEDIATELY. I HAVE REPLACED THE BATTERY, THROTTLE BODY ASSEMBLY AND WIRING HARNESS TWICE. FUSES, FUEL PUMP AND FILTERS, OIL, AND EVERYTHING ELSE AS RECOMMENDED. IT PUT ME IN THE DITCH. IT STRANDED ME IN THE CENTER OF A FREEWAY IN WINTER. WHEN IT SITS FOR A WHILE, IT RESETS, ONLY TO DO IT AGAIN. T/C LIGHT TURNS ON ALSO. I FOUND OUT THAT I CAN MANUALLY RESET THE REDUCED ENGINE POWER FOR A FEW MOMENTS (TO GET OUT OF THE CENTER OF THE ROAD) BY TURNING THE IGNITION SWITCH ON AND OFF VERY FAST. IT IS A EXTREME SAFETY HAZARD! I HAVEN'T DRIVEN IT IN MONTHS DUE TO ABSOLUTE FEAR FOR MY LIFE. WHEN ITS IN REDUCED ENGINE POWER MODE, I CAN'T GET IT TO GO ABOVE 25, AND GOING UP HILLS CAN'T GO ABOVE 5MPH. IF I AM PULLING A TRAILER, IT STARTS TO GO BACKWARDS. THIS THING IS GOING TO KILL SOMEONE! PLEASE HELP
NHTSA complaint #10660403 — an unverified report by a vehicle owner.
ENGINE
VEHICLE POWERS DOWN WITHOUT ANY PATTERN, RHYME OR REASON. IT WILL DO IT AT 5 MPH, AND AT 55 MPH, WHEN DRIVEN A LOT, AND WHEN NOT. REDUCED ENGINE POWER LIGHT TURNS ON, VEHICLE SUDDENLY SLOWS TO 25 MPH MAX, STEERING BECOMES HARD, BRAKES TOO. THEN WILL TOTALLY SHUT OFF IMMEDIATELY. I HAVE REPLACED THE BATTERY, THROTTLE BODY ASSEMBLY AND WIRING HARNESS TWICE. FUSES, FUEL PUMP AND FILTERS, OIL, AND EVERYTHING ELSE AS RECOMMENDED. IT PUT ME IN THE DITCH. IT STRANDED ME IN THE CENTER OF A FREEWAY IN WINTER. WHEN IT SITS FOR A WHILE, IT RESETS, ONLY TO DO IT AGAIN. T/C LIGHT TURNS ON ALSO. I FOUND OUT THAT I CAN MANUALLY RESET THE REDUCED ENGINE POWER FOR A FEW MOMENTS (TO GET OUT OF THE CENTER OF THE ROAD) BY TURNING THE IGNITION SWITCH ON AND OFF VERY FAST. IT IS A EXTREME SAFETY HAZARD! I HAVEN'T DRIVEN IT IN MONTHS DUE TO ABSOLUTE FEAR FOR MY LIFE. WHEN ITS IN REDUCED ENGINE POWER MODE, I CAN'T GET IT TO GO ABOVE 25, AND GOING UP HILLS CAN'T GO ABOVE 5MPH. IF I AM PULLING A TRAILER, IT STARTS TO GO BACKWARDS. THIS THING IS GOING TO KILL SOMEONE! PLEASE HELP
NHTSA complaint #10660403 — an unverified report by a vehicle owner.
SERVICE BRAKES
THE PROBLEM: BRAKES FAILED WHILE VEHICLE WAS RUNNING. AFTER A HARD BRAKE AT A STOPLIGHT AND DRIVING BRIEFLY, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOOR BARELY STOPPING THE VEHICLE. BRAKES WERE EXTREMELY MUSHY TO NON-EXISTENT AT TIMES. REPAIR WORK: LOCAL GMC SERVICE DEPARTMENT INDICATED THE BRAKE LINE HAD RUSTED OUT AND THEY REPLACED IT FOR CLOSE TO $1,600. PER THE INVOICE REPAIRS INCLUDED: BRAKE SYSTEM REPAIR/LABOR, BRAKE FLUSH KIT, PIPE KIT AND FLUID. (WHEN ASKED ABOUT BRAKE LINE ISSUES LATER, THE DEALERSHIP STATED THEY HAVE NEVER HEARD OF ANY PROBLEMS REGARDING THEM WITH GMCS.) HOW IT HAPPENED: WHILE DRIVING WITH MY WIFE AND CHILDREN IN THE VEHICLE, I HAD TO BREAK HARD WHEN I CAME AROUND A BEND TO A RED STOPLIGHT. THOUGH THE BRAKES WORKED, THEY FELT LIKE THEY WERE GIVING JUST A LITTLE AFTER I FINALLY CAME TO A STOP. WE PRECEDED ANOTHER 15-MILES WITH NO INCIDENT AND PULLED INTO RESTAURANT DRIVE-THRU. WHILE SITTING IN THE DRIVE-THRU LANE WITH THE VEHICLE IN GEAR AND MY FOOT ON THE BRAKE, ALL OF A SUDDEN MY FOOT WENT TO STRAIGHT TO THE FLOOR AND THE VEHICLE JUMPED FORWARD. THANKFULLY THERE WAS ENOUGH SPACE BETWEEN MY VEHICLE AND THE VEHICLE IN FRONT OF ME SO THAT I DIDN' HIT THEM. I IMMEDIATELY SHIFTED IT OUT OF GEAR TO STOP THE VEHICLE FROM MOVING FORWARD. AT THIS TIME I NOTICED A WARNING LIGHT HAD COME ON INDICATING TO CHECK BRAKES AND THAT THE ABS WAS OFF. I TESTED THE VEHICLE IN A NEARBY EMPTY PARKING LOT TO SEE IF IT WAS STILL DRIVABLE AND THE BRAKES APPEARED TO HAVE ONLY A LITTLE BIT OF 'STOPPAGE' THOUGH THE PEDAL WAS TO THE FLOOR. I REALIZED IT TOOK 50-100 YARDS TO STOP THE VEHICLE WITH BRAKE FULLY PRESSED AND NO GAS WHEN WE WERE GOING 20-25 M/H.
NHTSA complaint #10616072 — an unverified report by a vehicle owner.
STEERING
TL* THE CONTACT OWNS A 2003 GMC YUKON DENALI XL. THE CONTACT STATED THAT WHILE DRIVING 1 MPH AND MAKING A LEFT INTO A PARKING LOT, THE VEHICLE POWER STEERING FAILED. THE VEHICLE WAS SHIFTED INTO NEUTRAL AND WAS ABLE TO RESUME TO NORMAL. THE FAILURE OCCURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 90,000 AND THE CURRENT MILEAGE 91,000. UPDATED 9/18/14*CN THE CONSUMER STATED THE FAILURE ONLY OCCURRED WHILE MAKING A LEFT TURN. UPDATED 2/11/2015
NHTSA complaint #10615397 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL - THE CONTACT OWNS A 2003 GMC YUKON DENALI XL. THE CONTACT STATED THAT WHILE DRIVING 10 MPH, THE ABS ENGAGED WITHOUT ANY WARNINGS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE SPEED SENSOR WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 176,000. PM
NHTSA complaint #10577383 — an unverified report by a vehicle owner.
SERVICE BRAKES
I WAS DRIVING DOWN THE ROAD TO WORK AND I HIT THE BRAKES AND THE BRAKE PEDAL WAS NOT FIRM. I HIT THE BRAKE PEDAL AGAIN AND THE BRAKE PEDAL WENT TO THE FLOOR. I HAD A HARD TIME STOPPING THE BIG SUV AND WOULD HAVE HIT ANOTHER CAR HAD THIS HAPPENED AT A STOP LIGHT OR ANYWHERE WHERE I HAVE TO RELY ON MY BRAKES AS THE STOPPING DISTANCE WAS EASILY QUADRUPLED IF NOT MORE.
NHTSA complaint #10559845 — an unverified report by a vehicle owner.
ELECTRONIC STABILITY CONTROL (ESC)
I WAS DRIVING DOWN THE ROAD TO WORK AND I HIT THE BRAKES AND THE BRAKE PEDAL WAS NOT FIRM. I HIT THE BRAKE PEDAL AGAIN AND THE BRAKE PEDAL WENT TO THE FLOOR. I HAD A HARD TIME STOPPING THE BIG SUV AND WOULD HAVE HIT ANOTHER CAR HAD THIS HAPPENED AT A STOP LIGHT OR ANYWHERE WHERE I HAVE TO RELY ON MY BRAKES AS THE STOPPING DISTANCE WAS EASILY QUADRUPLED IF NOT MORE.
NHTSA complaint #10559845 — an unverified report by a vehicle owner.
POWER TRAIN
INTERMITTENTLY AT HWY AND SIDE ROAD SPEEDS, TRUCK WILL SHUT DOWN, CHECK ENGINE LIGHT COMES ON AND EXTREMELY ROUGH IDLE AND LOSS OF ENGINE POWER OCCURS. HAVE FOLLOWED ALL RECOMMENDED FIXES BUT PROBLEM PERSISTS. ENGINE CODE 1516, THROTTLE POSITION SENSOR OUT F RANGE +- .05 VOLTS. SCARY PROBLEM, AS THIS OCCURS WITHOUT WARNING AND CAUSES IMMEDIATE LOSS OF SPEED. MANY MANY COMPLAINTS POSTED ON THE INTERNET OF THIS SAME PROBLEM BUT NO GMC RECOMMENDED FIXES OR ASSISTANCE. REFUSE TO TAKE THIS TO A DEALER AND LET THEM POKE AROUND AT $95 / HOUR AND OR TO THROW PARTS AT TRUCK IN HOPES OF CORRECTING. GMC NEEDS TO ADDRESS THIS POTENTIALLY FATAL PROBLEM.
NHTSA complaint #10558879 — an unverified report by a vehicle owner.