LEAVING SMALL RURAL ROAD. BRAKE PEDAL WENT TO FLOOR AND VEHICLE ROLLED THROUGH STOP SIGN. NO ONCOMING TRAFFIC. UPON INSPECTION, LEFT FORWARD BRAKE LINE HAD RUPTURED DUE TO CORROSION. ONLY MATTER OF TIME BEFORE OTHER BRAKE LINES WILL FAIL. *TR
2004 GMC Sierra 2500
Owner reports · Recalls · Investigations
More warning signs than most Sierra 2500 years
Owner complaints for the 2004 GMC Sierra 2500 are substantially higher than the model-year median of 46.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sierra 2500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
122 reports with mileage · 21 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 48 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
143 reportsI BOUGHT THIS TRUCK FROM DEALER WITH 40151 MILES. I HAVE THIS TRUCK FROM 2007 TO PRESENT TIME WITH THE MILEAGE AT 51,000 MILES. THE TRUCK HAS BEEN USED FOR PERSONAL USE ONLY. I FEEL THAT THERE SHOULD BE A INVESTIGATION INTO THIS PROBLEM BECAUSE THIS WILL EFFECT MILLIONS OF GM TRUCKS. THIS PROBLEM WILL COST OVER $1000. TO FIX BEC…
Read full complaint
I BOUGHT THIS TRUCK FROM DEALER WITH 40151 MILES. I HAVE THIS TRUCK FROM 2007 TO PRESENT TIME WITH THE MILEAGE AT 51,000 MILES. THE TRUCK HAS BEEN USED FOR PERSONAL USE ONLY. I FEEL THAT THERE SHOULD BE A INVESTIGATION INTO THIS PROBLEM BECAUSE THIS WILL EFFECT MILLIONS OF GM TRUCKS. THIS PROBLEM WILL COST OVER $1000. TO FIX BECAUSE OF POSSIBLE FIRE,ENGINE FAILURE, EMISSIONS PROBLEMS, OTHER VERY COSTLY PROBLEMS THAT WILL RELATE TO THE BOLTS BREAKING OFF FROM DEFECT ON THE EXHAUST MANIFOLD. THIS CAN CAUSE VERY SERIOUS PROBLEMS. (THIS IS AS SERIOUS AS THE TOYOTA CAR PROBLEMS OR WORSE). I ALSO THINK WITH THE NEW AIR EMISSIONS STANDARDS THESE TRUCKS WILL NOT PASS THE INSPECTIONS. BECAUSE OF THE EXHAUST LEAKS ON THE MOTOR. THERE IS NO DOUBT I FEEL THIS SHOULD & CAN BE A CLASS ACTION SUIT. GM KNOWS OF THIS DEFECT OF THE BOLT BUT STILL NO RECALL. WHY MUST IT TAKE SOMEONE TO GET KILLED OR HURT BEFORE THEY FIX THE PROBLEM. I DON'T HAVE THOUSANDS TO FIX THIS PROBLEM & NOW WHEN I DRIVE I AM WORRIED ABOUT THE TRUCK GOING ON FIRE. GM MUST DO THE RIGHT THING TO CORRECT THE PROBLEM THE CAUSED. PLEASE KEEP ME INFORMED. THANK [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
TL* THE CONTACT OWNS A 2004 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHILE DRIVING 25 MPH DOWNHILL, THE DRIVER WAS ATTEMPTING TO BRAKE AND THE PEDAL DEPRESSED TO THE FLOOR. THE CONTACT MENTIONED THAT THE FAILURE OCCURRED TWICE BEFORE. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE BRAKE LINES WERE COMPLETELY CORR…
Read full complaint
TL* THE CONTACT OWNS A 2004 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHILE DRIVING 25 MPH DOWNHILL, THE DRIVER WAS ATTEMPTING TO BRAKE AND THE PEDAL DEPRESSED TO THE FLOOR. THE CONTACT MENTIONED THAT THE FAILURE OCCURRED TWICE BEFORE. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE BRAKE LINES WERE COMPLETELY CORRODED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT OFFER ANY ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 33,000 AND THE CURRENT MILEAGE WAS 36,000.
SECOND BRAKE PROBLEM, SECOND OF THREE BRAKE LINE PROBLEMS FROM RUSTY BRAKE LINES AND BRAKE LINE FAILURE WHILE STOPPING AND LOSE OF BRAKES, NEEDING TO USE EMERGENCY BRAKE TO STOP. ALL REMAINING BRAKE LINES ARE COMPLETELY RUSTED AND NEED TO BE REPLACED FOR SAFE DRIVING. THIS IS COMPLETELY UNACCEPTABLE AND ARE UNSAFE DRIVING C…
Read full complaint
SECOND BRAKE PROBLEM, SECOND OF THREE BRAKE LINE PROBLEMS FROM RUSTY BRAKE LINES AND BRAKE LINE FAILURE WHILE STOPPING AND LOSE OF BRAKES, NEEDING TO USE EMERGENCY BRAKE TO STOP. ALL REMAINING BRAKE LINES ARE COMPLETELY RUSTED AND NEED TO BE REPLACED FOR SAFE DRIVING. THIS IS COMPLETELY UNACCEPTABLE AND ARE UNSAFE DRIVING CONDITIONS. BRAKE LINES SHOULD NEVER FAIL FROM RUST, PERIOD. *JS
BOTH FRONT HYDRAULIC BRAKE LINES CORRODED ON DRIVERS SIDE, WITH LOSS OF BRAKING, ON CHASSIS TOP REAR OF FRONT WHEEL. IT APPEARS THAT THERE IS A LARGE WIRING LOOM (1 1/2" O.D.) CLIPPED ON TOP OF HYDRAULIC LINES, ONE TO LF AND RF WHEELS. CORROSION ON BOTH LINES ARE AT THE CONTACT OF THE LOOM AND LINES. VIBRATION MAY HAVE CAUSED…
Read full complaint
BOTH FRONT HYDRAULIC BRAKE LINES CORRODED ON DRIVERS SIDE, WITH LOSS OF BRAKING, ON CHASSIS TOP REAR OF FRONT WHEEL. IT APPEARS THAT THERE IS A LARGE WIRING LOOM (1 1/2" O.D.) CLIPPED ON TOP OF HYDRAULIC LINES, ONE TO LF AND RF WHEELS. CORROSION ON BOTH LINES ARE AT THE CONTACT OF THE LOOM AND LINES. VIBRATION MAY HAVE CAUSED THE LOOM AND LINES TO RUB AND ALLOWED MOISTURE TO CORRODE THE BRAKE LINES. *TR
MY TRUCK IS A WORK TRUCK DRIVEN BY AN EMPLOYEE, I HAVE JUST RECENTLY BECOME AWARE OF A CONDITION REGARDING THE INSTRUMENT CLUSTER, WHEREIN THE WHOLE PANEL DOES NOT WORK, I WAS ADVISED BY THE EMPLOYEE THAT THIS HAPPENED QUITE SOME TIME AGO, BUT WAS NEVER MADE AWARE. I CONTACTED GMC BUT APPARENTLY, BECAUSE THIS IS CONSIDERED A SP…
Read full complaint
MY TRUCK IS A WORK TRUCK DRIVEN BY AN EMPLOYEE, I HAVE JUST RECENTLY BECOME AWARE OF A CONDITION REGARDING THE INSTRUMENT CLUSTER, WHEREIN THE WHOLE PANEL DOES NOT WORK, I WAS ADVISED BY THE EMPLOYEE THAT THIS HAPPENED QUITE SOME TIME AGO, BUT WAS NEVER MADE AWARE. I CONTACTED GMC BUT APPARENTLY, BECAUSE THIS IS CONSIDERED A SPECIAL POLICY RECALL (ONLY IF SOMEONE COMPLAINS - AND WITHIN A SPECIFIED TIME PERIOD 7 YRS OR 80,000 MILES) THEY WILL NOT REPAIR THIS DEFECT. I NEVER RECEIVED A NOTICE, NOR WAS I AWARE OF THE PROBLEM WITHIN THAT TIME PERIOD. I WAS FURTHER INFORMED BY MY WORKER THAT AT THE TIME THE PANEL WENT OUT, THE FAN FOR THE HEATER/AIR CONDITION UNIT APPEARED TO SMOKE AND NOW IT DOES NOT WORK. HERE AGAIN, I HAVE NOT RECEIVED ANY RECALL NOTICES FOR THIS DEFECT EITHER. FINALLY, IN MY ATTEMPTS TO GET THE CLUSTER REPAIRED, I HAVE BEEN INFORMED THAT THERE IS A RECALL ON THE HYDRO BOOST ACCUMULATOR... I HAVE NOT ONCE RECEIVED A RECALL NOTICE ON THIS VEHICLE AND I PURCHASED THIS VEHICLE NEW. MY VEHICLE HAS 101,000 MILES ON IT. YOU WOULD THINK THAT A VEHICLE OF THIS NATURE WOULD LAST LONGER THAN 100,000. BUT APPARENTLY NOT... ALSO, WHEN THESE IS SUCH A MAJOR RECALL OUT ON A VEHICLE YOU WOULD THINK THAT GMC WOULD CONTACT YOU AND ADVISE YOU OF THIS PROBLEM.. *TR
WHEN COMING TO A STOP THE PEDAL WENT TO FLOOR AND HAD NO BRAKES. LUCKILY I WAS ABLE TO SWERVE AND MISS THE VEHICLE IN FROM OF ME. BUT HAD TO RUN THROUGH THE FOUR WAY STOP AND WAS BLESSED TO HAVE NO OTHER VEHICLES IN WAY. THE BRAKE FLUID WAS LEAKING FROM UNDER THE DRIVER SIDE ABOUT WHERE THE SEAT IS. UPON INVESTIGATION, THE LINES…
Read full complaint
WHEN COMING TO A STOP THE PEDAL WENT TO FLOOR AND HAD NO BRAKES. LUCKILY I WAS ABLE TO SWERVE AND MISS THE VEHICLE IN FROM OF ME. BUT HAD TO RUN THROUGH THE FOUR WAY STOP AND WAS BLESSED TO HAVE NO OTHER VEHICLES IN WAY. THE BRAKE FLUID WAS LEAKING FROM UNDER THE DRIVER SIDE ABOUT WHERE THE SEAT IS. UPON INVESTIGATION, THE LINES ARE ALL CORRODED AND RUSTING. OBVIOUSLY IT ONLY TAKES ONE TO LEAK BUT ALL NEED TO BE REPLACED. THIS IS SUCH A SURPRISE BECAUSE THIS TRUCK SITS IN THE GARAGE MOST OF THE TIME AND HAS VERY FEW MILES ON IT. *TT
TL* THE CONTACT OWNS A 2004 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 50 MPH AND ATTEMPTING TO DECELERATE, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOORBOARD ABNORMALLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE THEY ADVISED HIM THAT THE DRIVER SIDE REAR STEEL BRAKE LINE HAD FAILED. THEY ADVISED HIM THAT…
Read full complaint
TL* THE CONTACT OWNS A 2004 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 50 MPH AND ATTEMPTING TO DECELERATE, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOORBOARD ABNORMALLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE THEY ADVISED HIM THAT THE DRIVER SIDE REAR STEEL BRAKE LINE HAD FAILED. THEY ADVISED HIM THAT ALL BRAKE LINES NEEDED TO BE REPLACED DUE TO THE SEVERITY OF THE CORROSION. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND THEY OFFERED NO ASSISTANCE. THE FAILURE AND THE CURRENT MILEAGES WERE APPROXIMATELY 38,400.
BRAKE LINES ARE ROTTED OUT. I PUSHED ON MY BRAKE PEDAL WHILE COMING TO A RED LIGHT AND IT WENT TO THE FLOOR, THE RUSTED LINES HAD BROKEN AND MY BRAKES DID NOT WORK. LUCKILY I WAS NOT GOING TO FAST OR TO CLOSE TO THE CAR IN FRONT OF ME SO I WAS ABLE TO SLOW ENOUGH TO TURN OFF THE ROAD BY PUSHING IN MY PARKING BRAKE. *TR
WHILE TOWING 4000# BOAT, APPROACHED TRAFFIC SIGNAL AND APPLIED BRAKES WHILE MOVING AT APPROX 10 MPH, THE BRAKES APPLIED AND THE PEDAL THEN BOTTOMED OUT ON THE FLOOR. THE VEHICLE VEERED LEFT AND CAME TO A STOP AFTER MUCH CONTINUED BRAKING EFFORT. THE VEHICLE WAS DRIVEN OFF THE HIGHWAY AT THE FIRST SAFE INTERSECTION AND EXAMINED.…
Read full complaint
WHILE TOWING 4000# BOAT, APPROACHED TRAFFIC SIGNAL AND APPLIED BRAKES WHILE MOVING AT APPROX 10 MPH, THE BRAKES APPLIED AND THE PEDAL THEN BOTTOMED OUT ON THE FLOOR. THE VEHICLE VEERED LEFT AND CAME TO A STOP AFTER MUCH CONTINUED BRAKING EFFORT. THE VEHICLE WAS DRIVEN OFF THE HIGHWAY AT THE FIRST SAFE INTERSECTION AND EXAMINED. INSPECTION UNDER THE DRIVERS SIDE OF THE FRAME REVEALED RUSTED THROUGH STEEL BRAKE LINE FROM MASTER CYLINDER AND LEAKING BRAKE FLUID ONTO THE STREET. VEHICLE AND BOAT WERE TOWED, LATER INSPECTION REVEALED FOUR OF FIVE STEEL BRAKE LINES AT THE PROPORTIONING VALVE WERE RUSTED TO POINT THAT REPLACEMENT WAS NECESSARY.
Official recalls
104V562000 · Equipment Adaptive/mobility
Nov 26, 2004
ON CERTAIN VANS EQUIPPED WITH SURE-LOK WHEELCHAIR SECUREMENT SYSTEMS, THE SPROCKET TEETH OF THE RETRACTOR ASSEMBLY IS OUT OF ALIGNMENT.
Consequence & remedy
Consequence: IN THE EVENT OF A VEHICLE CRASH, THE WHEELCHAIR MAY NOT BE ADEQUATELY SECURED POSSIBLY RESULTING IN INJURIES TO A WHEELCHAIR OCCUPANT.
Remedy: DEALERS WILL INSPECT AND REPLACE THE WHEELCHAIR SECUREMENT RETRACTORS AS NECESSARY. SURE-LOK WILL HANDLE THE REPAIRS FOR THIS CAMPAIGN. OWNERS SHOULD CONTACT SURE-LOCK AT 1-908-231-1804 OR MOBILITYWORKS AT 1-800-769-8267.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
Illustration