FaultScore

FaultScore report

2004 GMC Sierra problems

Owners have filed 224 complaints about the 2004 GMC Sierra with NHTSA between 2004 and 2016. The largest single group is the brakes. Across this model's run it ranks 8 of 24 worst.

D

FaultScore 61/100

Higher is worse. Measured against the other years of the GMC Sierra.

How this is worked out

The numbers

224

Complaints

12

Crashes reported

7

Fires reported

10

Injuries reported

46,000 mi

Median mileage at failure

Half of reported failures happened before this

37%

Failed under 36,000 miles

Inside a typical bumper-to-bumper warranty

What kind of bad

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.

Complaint volume 56 vs 50 Severity 67 vs 50 Early failure 63 vs 50
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 56
Against the median year of the GMC Sierra. 50 means typical for this model; 100 means roughly double.
Severity — 67
12.9% of these complaints involved a crash, fire, injury or death, against a national rate of 9.7%.
Early failure — 63
37% of failures with a mileage on record happened under 36,000 miles, against a national rate of 29%.

How 2004 compares with every other GMC Sierra

Click any bar to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks on a 2004 GMC Sierra

Every complaint is filed against a part. Follow any row for the complaints about that part alone.

Brakes 77 34.4%

5 crashes, 1 fires · median 77,000 mi

0 crashes, 2 fires · median 61,000 mi

2 crashes, 1 fires · median 8,000 mi

Steering 14 6.3%

Median failure at 18,342 miles

Body & Structure 9 4.0%

Median failure at 36,600 miles

Engine & Cooling 9 4.0%

0 crashes, 2 fires · median 87,000 mi

Windows, Mirrors & Wipers 8 3.6%

Median failure at 34,750 miles

Fuel & Propulsion 8 3.6%

Median failure at 45,614 miles

Acceleration & Cruise Control 8 3.6%

0 crashes, 1 fires · median 5,100 mi

Lights 6 2.7%

Median failure at 4,500 miles

Airbags 5 2.2%

4 crashes, 0 fires · median 62,500 mi

Wheels 4 1.8%

Median failure at 33,837 miles

Tires 4 1.8%

Median failure at 22,125 miles

Suspension 4 1.8%

Median failure at 9,698 miles

Equipment & Accessories 3 1.3%

Median failure at 49,000 miles

Other & Unspecified 2 0.9%

Median failure at 16,782 miles

Seat Belts 2 0.9%

1 crashes, 0 fires · median 20,000 mi

Doors, Latches & Locks 1 0.4%

Median failure at 1,534 miles

Seats 1 0.4%

Median failure at 10,200 miles

Exactly what failed

NHTSA files every complaint against a named sub-assembly, not just a system. This is the difference between knowing it was "the engine" and knowing which part of it — the list to hand a mechanic.

Instrument Cluster/Panel 18 35.3%
Automatic Transmission 12 23.5%
Antilock/Traction Control/Electronic Limited Slip 7 13.7%
Frontal 4 7.8%
Diesel 3 5.9%
Exterior 3 5.9%
Wheel Speed Sensor/Tone Ring 2 3.9%
Front 2 3.9%

When it fails

Odometer readings owners gave when they filed. About half of all complaints include one.

Under 1,000 miles 7 3.9%
1,000 – 9,999 miles 30 16.7%
10,000 – 24,999 miles 19 10.6%
25,000 – 49,999 miles 40 22.2%
50,000 – 74,999 miles 21 11.7%
75,000 – 99,999 miles 33 18.3%
100,000 – 149,999 miles 23 12.8%
150,000+ miles 7 3.9%

NHTSA crash tests

The agency crash-tested this model year itself. These are its own photographs and star ratings.

These stars come from the pre-2011 crash test programme. NHTSA rebuilt the programme for the 2011 model year and states that ratings either side of that change are not comparable — so do not read these against a 2011-or-newer car's stars.

Configuration Overall Front Side Rollover
2004 GMC Sierra Regular Cab
18.5% risk
2004 GMC Sierra Extended Cab
18.5% risk
2004 GMC Sierra Crew Cab
18.5% risk

When owners complained

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.

Jan 2004 peak 10 Feb 2016

Recalls on the 2004 GMC Sierra

A complaint is one owner's allegation. A recall is the point at which the manufacturer or a regulator agreed the defect is real and dangerous enough to fix for free — however old the car is.

United States — NHTSA

09E025000

EXTERIOR LIGHTING:HEADLIGHTS

DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.

Risk: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.

07E066000

EQUIPMENT:ELECTRICAL

CERTAIN CEQUENT 90 DEGREE 7-WAY RIGHT ANGLE ADAPTORS SOLD BY DISTRIBUTORS IN TOW PACKAGES FOR AFTERMARKET SALES TO TOW 5TH WHEEL RV TRAVEL TRAILERS. DUE TO INCORRECT WIRING OF THE HARNESS, THE TRAILER LIGHTS MAY NOT OPERATE PROPERLY.

Risk: IF THE TRAILER LIGHTS ARE NOT WORKING PROPERLY, A VEHICLE CRASH CAN OCCUR.

06V289000

ENGINE AND ENGINE COOLING

ON CERTAIN TRUCKS EQUIPPED WITH AN 8.1L V8 (RPO L8-VIN G) ENGINE HAVE A CONDITION IN WHICH THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP MAY FRACTURE RESULTING IN INADEQUATE RETENTION OF THE DAMPER.

Risk: IF THE DAMPER COMES LOOSE, A FUEL LEAK MAY RESULT. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.

05V163000

SEAT BELTS:REAR/OTHER

ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF OCCUPANTS, ESPECIALLY SMALLER OCCUPANTS, SEATED IN THIS POSITION. APPROPRIATE USE OF A CHILD SEAT OR BOOSTER SEAT, AS RECOMMENDED FOR SMALL CHILDREN, DOES IMPROVE THE FIT CONDITION FOR THIS USER GROUP. IN ADDITION TO INSTRUCTIONS ON PROPER INFANT AND YOUNG CHILD RESTRAINT (WITH CHILD SEATS OR BOOSTERS), SPECIAL VERBIAGE FOR RESTRAINING OLDER CHILD IS INCLUDED IN THE OWNER'S MANUAL. ALSO, THE SUGGESTED SEAT BELT FIT/ROUTING FOR ADULTS, IRRESPECTIVE OF SEATING POSITION, IS DESCRIBED IN THE OWNER'S MANUAL TEXT.

Risk: A LAP PORTION OF THE SEAT BELT ROUTING THAT IS NOT LOW AND SNUG ON THE HIPS CAN ALLOW THE LAP BELT TO RIDE UP ON AN OCCUPANT'S ABDOMEN INSTEAD OF FITTING LOW AROUND THEIR HIPBONES, AND THEREFORE, CAN EXPOSE THEM TO MORE RISK OF ABDOMINAL AND INTERNAL ORGAN INJURY.

05V161000

PARKING BRAKE

ON CERTAIN PICKUP TRUCKS EQUIPPED WITH MANUAL TRANSMISSIONS AND BUILT WITH EITHER PBR PARKING BRAKE SYSTEMS OR TRW PARKING BRAKE SYSTEMS, THE PARKING BRAKE FRICTION LININGS MAY WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.

Risk: IF THE PARKING BRAKE DOES NOT HOLD, UNINTENDED VEHICLE MOVEMENT COULD OCCUR, WHICH COULD RESULT IN A CRASH.

05V043000

SERVICE BRAKES, HYDRAULIC

CERTAIN TRUCKS, SPORT UTILITY VEHICLES, AND VANS EQUIPPED WITH BOSCH HYDRO-BOOST BRAKE ASSEMBLIES, THE HYDRAULIC BRAKE BOOSTER PRESSURE ACCUMULATOR MAY CRACK AND SEPARATE FROM THE HYDRO-BOOST ASSEMBLY DURING NORMAL OPERATING CONDITIONS.

Risk: IF A SEPARATION OCCURRED AND THE HOOD OF THE VEHICLE WERE OPEN, FRAGMENTS FROM THE ACCUMULATOR COULD CAUSE INJURY TO PEOPLE IN THE IMMEDIATE AREA. THE PRESENCE OF THIS CRACK OR FRACTURED SURFACE COULD ALLOW THE HYDRAULIC FLUID TO LEAK FROM THE ACCUMULATOR CIRCUIT OF THE BOOSTER ASSEMBLY. THE LOSS OF FLUID WOULD CAUSE INCREASED STEERING AND BRAKING EFFORT AND A CRASH MAY OCCUR WITHOUT PRIOR WARNING.

04V225000

SEAT BELTS:FRONT:ANCHORAGE

CERTAIN EXTENDED AND REGULAR CAB PICKUP TRUCKS AND CARGO VANS CONVERTED TO COMPRESSED NATURAL GAS (CNG) FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, 'CHILD RESTRAINT ANCHORAGE SYSTEMS.' THESE VEHICLES HAVE ONE SEATING POSITION, THE CENTER REAR SEAT, EQUIPPED WITH CHILD RESTRAINT LOWER ANCHORAGES.

Risk: THE STANDARD REQUIRES CHILD SEAT LOWER ANCHORAGES IN TWO SEATING POSITIONS FOR VEHICLES WITH THREE REAR SEATING POSITIONS. THE STANDARD CAB AND CARGO VAN VEHICLES, WHICH ONLY HAVE FRONT SEATING POSITIONS, HAVE AN AIR BAG OFF SWITCH TO DISABLE THE FRONT PASSENGER AIR BAG AND DO NOT HAVE CHILD RESTRAINT LOWER ANCHORAGES IN THE PASSENGER SEAT. THE STANDARD REQUIRES PASSENGER SEAT CHILD SEAT LOWER ANCHORAGES IN VEHICLES WITH AN AIR BAG OFF SWITCH. HOWEVER, THE STANDARD DOES NOT REQUIRE VEHICLES WITH ONLY FRONT SEATING POSITIONS TO HAVE LOWER ANCHORAGE PROVISIONS IF THE VEHICLE IS NOT EQUIPPED WITH AN AIR BAG OFF SWITCH.

04E022000

EQUIPMENT

AFTERMARKET PICKUP TRUCK OVER-THE-RAIL BEDLINERS MANUFACTURED FOR INSTALLATION ON 1999-2004 CHEVROLET SILVERADO AND GMC SIERRA PICKUP TRUCKS. THE TOGGLE WING ASSEMBLY USED TO ATTACH THE BEDLINER TO THE TRUCK BED IS NOT ENGAGING FULLY IN THE STAKE POCKET OF THE PICKUP TRUCK.

Risk: THE BEDLINER CAN BECOME DETACHED FROM THE PICKUP WHILE IT IS MOTION, POSSIBLY ENDANGERING FOLLOWING MOTORISTS OR PEDESTRIANS.

Canada — Transport Canada

Canada runs its own recall programme, and its campaigns do not always mirror the American ones.

Recall 2011074 190,310 units in Canada

Heater And Defroster

On certain vehicles, the interface between the electrical terminals of the Heating, Ventilation, and Air Conditioning (HVAC) blower relay resistor module and the wiring connector (which powers the module) may be incapable of conducting higher current levels for sustained periods of operation. In addition, moisture and other contaminants (such as road de-icing materials) may enter the fresh air intake plenum and contact the internal circuit of the module or corrode the terminals. These conditions may cause the relay resistor module or wiring connector to overheat, causing various symptoms such as: the HVAC blower may not function on certain or all blower speed settings; a burning-plastic smell or smoke may be present in the vehicle, or; the HVAC blower may run continually with the ignition in the OFF position. These warning signs could, in certain instances, be leading indicators of an impending vehicle fire, which could result in property damage and/or personal injury. Correction: Owners will be provided with additional warranty coverage for the blower motor resistor module/wiring connector overheating condition. Under this "special warranty coverage", should this condition occur within 10 years or 240,000 km from first vehicle registration, dealers will install a replacement blower motor resistor and resistor module connector.

Recall 2006195 1,485 units in Canada

Fuel System

On certain vehicles, the engine fuel rail pulse damper retainer clip may fracture, resulting in inadequate retention of the damper. If the damper comes loose, a fuel leak may result. Fuel leakage in the presence of an ignition source could result in a fire. Correction: Dealers will replace the engine fuel rail pulse damper retainer clip.

Recall 2005119 73,473 units in Canada

Seats And Restraints

On certain vehicles, the 2nd row centre occupant seat belt routing may make it difficult to position the lap portion of the safety belt low around the hips of occupants. A lap portion of the seat belt routing that is not low and snug on the hips can allow unfavourable occupant kinetics in the event of a crash. Moreover, the higher routing allows the lap belt to ride up on an occupant's abdomen instead of fitting low around their hipbones, and therefore, can expose them to more risk of abdominal and internal organ injury. Correction: Dealers will modify the guide loop.

Recall 2005116 6,920 units in Canada

Brakes

On certain 1999-2002 1500 series and 2001-2005 2500 & 3500 series trucks equipped with a manual transmission, the parking brake friction lining may wear to an extent where the parking brake can become ineffective in immobilizing a parked vehicle. Correction: Dealers will install a low-force spring clip retainer on vehicles equipped with PBR parking brake system and install a redesigned parking brake cable assembly on vehicle equipped with a TRW parking brake system.

Recall 2005033 5,014 units in Canada

Brakes

On certain vehicles, the hydraulic brake booster's pressure accumulator may crack and/or separate from the Hydro-Boost assembly during normal vehicle operating conditions. If a separation occurred and the hood of the vehicle was open, fragments from the accumulator could cause injury to people in the immediate area. In addition, the presence of this crack or fractured surface could allow the hydraulic fluid to leak from the accumulator circuit of the booster assembly. The loss of fluid would cause increased steering and braking effort. Correction: Dealers will test and, if necessary, replace the Hydro-Boost assembly.

Recall 2004102 301,974 units in Canada

Other

On certain vehicles, the galvanized-braided-steel tailgate support cables used to support the tailgate in the full open (horizontal) position can corrode over time and fracture when loads are applied to them. Tailgate support cable corrosion may not be visible because of the plastic sheathing covering the cable. If one cable fractured, the remaining cable may retain the tailgate in a horizontal position. If the remaining cable was weakened by corrosion, it could fracture within moments of the first cable fracture. If both cables fractured, the tailgate would suddenly drop approximately 10 degrees and strike the top surface of the rear bumper. If anyone is sitting or standing on the horizontal surface of the tailgate when both cables fracture, they could fall and be injured. On vehicles without a rear bumper, the tailgate may drop to a lower position. Correction: Dealers will replace the existing galvanized support cables with stainless steel support cables.

Recall 2004037 4,075 units in Canada

Brakes

On certain vehicles, the relief valve o-ring seal within the brake hydro-boost module could fail. If this happens during braking applications, the driver may be able to hear an engine compartment noise similar to the sound that occurs when the steering wheel is turned to a full stop position. The driver could also experience a slight increase in steering efforts while braking and parking. Under certain driving conditions, a slight increase in the applied brake pedal effort may be required to achieve the same vehicle deceleration rate as prior to the seal failure. Correction: Dealers will inspect the hydro-boost module, and replace it, if necessary.

Recalls cover specific build ranges, so check your own vehicle by VIN at nhtsa.gov/recalls or, in Canada, Transport Canada.

Complaints that involved harm

Reports where the owner recorded a crash, a fire, an injury or a death.

at 90,000 miles Cheshire, CT Fire

ENGINE

DROVE FROM MY HOME TO COWORKERS (20MINS) LEFT TRUCK IN COWORKERS DRIVEWAY ,AND WENT TO WORK. ONE HOUR LATER COWORKER REC'D CALL FROM NEXT DOOR THAT MY TRUCK WAS ON FIRE.

NHTSA complaint #10787590 — an unverified report by a vehicle owner.

at 82,000 miles Lockport, NY Crash

SERVICE BRAKES

VEHICLE IN FRONT OF ME STOPPED SUDDENLY. MY BRAKES FAILED AS MY FOOT/PEDAL HIT THE FLOOR. ALL I HEARD WAS BUZZING. I HIT THE VEHICLE IN FRONT OF ME. MECHANIC SHOWED ME THE RUSTED OUT BRAKE LINE THAT FAILED. ADVISED ME THAT THE ABS PUMP JUST PLAN EMPTIED MY MC TO MAKE UP PRESSURE LOSS. MY COMPLAINT ISN'T SO MUCH THE FACT THAT MY BRAKE LINE RUSTED OUT AS IT IS A 10 YEAR OLD TRUCK, (ALTHOUGH STAINLESS LINES WITH STEEL CONNECTORS WOULD BE A HUGE IMPROVEMENT). BUT MY COMPLAINT IS THAT THE ABS SYSTEMS IN THESE TRUCKS, AND MAYBE OTHER VEHICLES ARE FLAWED. BACK BEFORE ABS CAME OUT, IF A LINE WAS DAMAGED OR FAILED FOR WHATEVER REASON THE SEPARATED RESERVOIRS IN MC'S WOULD AT LEAST GIVE YOU FRONT OR REAR BRAKES TO STOP. THAT WAS THE BEST SINGLE DESIGN IMPROVEMENT MANUFACTURERS MADE TO BRAKES, AND I'VE BEEN DRIVING WHEN MC'S ONLY HAD ONE RESERVOIR. TO HAVE A COMPLETE MC DRAINED FOR A LINE FAILURE IS LUDICROUS.

NHTSA complaint #10548905 — an unverified report by a vehicle owner.

at 76,000 miles Elgin, IL Crash

SERVICE BRAKES

BRAKE LINE FAILURE AS AN EMERGENCY STOPPING PROCEDURE WAS IN PLACE. VEHICLE EVENTUALLY STOPPED, BUT REAR ENDED THE FORWARD VEHICLE. BRAKE LINE CORROSION IN HARD PIPING WAS DIAGNOSED AS THE PROBLEM AS THE HARD BRAKE LINE RUPTURED.

NHTSA complaint #10504703 — an unverified report by a vehicle owner.

at 95,000 miles Delaware, OH Fire 1 injured

ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD

I HAD PURCHASED MY SIERRA 1500 FROM CHESROWN DEALERSHIP OF DELAWARE OHIO. I HAD THE TRUCK FOR LESS THAN 60 DAYS. I LOVED THE TRUCK VERY MUCH BUT WAS VERY UPSET WHEN AN ELECTRICAL FIRE STARTED IN UNDER MY HOOD. THIS HAPPENED THE DAY AFTER THANKSGIVING AND SINCE I HAD THE FACTORY STEREO SYSTEM I HAD NO EXPLANATION FOR THE START OF THE FIRE. IT TOOK THE FIRE DEPARTMENT A COUPLE OF MINUTES TO GET THERE AND BY THAT TIME THE FIRE HAD SPREAD FROM THE ENGINE THROUGHOUT THE WIRES DOWN THE FIREWALL AND INTO MY TRUCKS ENTIRER. ALL THAT I COULD DO WAS WATCH IN HORROR AS MY TRUCK WAS ENGULFED IN FLAMES FROM A FAR. I ATTEMPTED TO STOP THE FIRE FROM SPREADING INSIDE AND MY HAND WAS BURNT. WHEN THE POLICE USED THE THE FIRE EXTINGUISHER FROM THEIR CRUISER IT SEEMED TO GIVE IT OXYGEN AND SPREAD IT FASTER. I WAS DEVASTATED.

NHTSA complaint #10215374 — an unverified report by a vehicle owner.

at 60,000 miles Buckeye, AZ Crash 1 injured

AIR BAGS:FRONTAL

A 1200 LB ELK JUMPED IN FRONT OF THE VEHICLE CAUSING ME TO SWERVE AND ROLL THE VEHICLE END OVER END. THE AIRBAG(S) NEVER DEPLOYED IN EITHER THE DRIVER OR PASSENGER SIDES OF THE VEHICLE.

NHTSA complaint #10202449 — an unverified report by a vehicle owner.

Buckingham, IA Fire

ELECTRICAL SYSTEM

2004 SIERRA CAUGHT ON FIRE DUE TO A MALFUNCTION IN THE TRUCK. *TS

NHTSA complaint #10174337 — an unverified report by a vehicle owner.

The most recent complaints

In the owners' own words, exactly as filed with NHTSA.

at 154,000 miles Wisconsin Rapids, WI

AIR BAGS

I HAVE A 2004 GMC SIERRA AND ALL OF A SUDDEN MY AIRBAG LIGHT AND ABS LIGHT CAME ON TOOK IT IN TO HAVE IT LOOKED AND THE AIRBAGS ARE NOT COMMUNICATING WITH THE SENSOR AND THEY WOULD HAVE TO GO MORE IN DEPTH ON THE ABS BUT TO GO MORE IN DEPTH THEY CHARGE $80.00 AN HOUR JUST TO BE ABLE TO FIGURE IT OUT. I HAVE SEEN SIMILAR RESPONSES ON THE AIRBAG LIGHT FOR THIS VEHICLE PLEASE HELP.

NHTSA complaint #10824516 — an unverified report by a vehicle owner.

at 154,000 miles Wisconsin Rapids, WI

SERVICE BRAKES

I HAVE A 2004 GMC SIERRA AND ALL OF A SUDDEN MY AIRBAG LIGHT AND ABS LIGHT CAME ON TOOK IT IN TO HAVE IT LOOKED AND THE AIRBAGS ARE NOT COMMUNICATING WITH THE SENSOR AND THEY WOULD HAVE TO GO MORE IN DEPTH ON THE ABS BUT TO GO MORE IN DEPTH THEY CHARGE $80.00 AN HOUR JUST TO BE ABLE TO FIGURE IT OUT. I HAVE SEEN SIMILAR RESPONSES ON THE AIRBAG LIGHT FOR THIS VEHICLE PLEASE HELP.

NHTSA complaint #10824516 — an unverified report by a vehicle owner.

at 120,000 miles Valencia, PA

ELECTRICAL SYSTEM

RUSTED OUT/ CORRODED BRAKE LINES BURST WHILE STOPPING FOR A DEER RUNNING OUT ON THE ROAD. WAS WARNED OF THIS PROBLEM UPON PURCHASE OF THE VEHICLE IN 2010 AND PERSONALLY COATED ALL BRAKE LINES B4 WINTER EVERY YEAR...NEVER SAW WORSE LINES! I OWN CLASSIC CARS THAT ARE TWICE AS OLD WITH SHINEY ORIGINAL BRAKE LINES. THE FUEL LINES ALSO ROTTED OUT SPILLING FUEL OVER THE TOP OF THE FUEL TANK AND ON THE GROUND WHILE FILLING UP. ALL FUEL LINES AND FUEL PUMP CONNECTIONS WERE SEVERELY ROTTED. WORST I HAVE SEEN. DASH CONSISTENTLY CHANGES LANGUAGES RENDERING ODOMETER NON FUNCTIONAL. SPEEDOMETER IS INACCURATE SOME TIMES NOT EVEN WORKING ESPECIALLY ON COLD DAYS. HMMMM ROTTED BRAKES+NO SPEEDOMETER+LEAKY FUEL LINES=CRASH,BANG BOOM!..AND I HAVE A CAR SEAT IN MY VEHICLE! LUCKLY I PERFORM PREVENTATIVE MAINTENANCE AND DRIVE SAFELY. STILL WONDER HOW THESE ISSUES GOT SWEPT UNDER THE RUG.

NHTSA complaint #10818811 — an unverified report by a vehicle owner.

at 120,000 miles Valencia, PA

SERVICE BRAKES

RUSTED OUT/ CORRODED BRAKE LINES BURST WHILE STOPPING FOR A DEER RUNNING OUT ON THE ROAD. WAS WARNED OF THIS PROBLEM UPON PURCHASE OF THE VEHICLE IN 2010 AND PERSONALLY COATED ALL BRAKE LINES B4 WINTER EVERY YEAR...NEVER SAW WORSE LINES! I OWN CLASSIC CARS THAT ARE TWICE AS OLD WITH SHINEY ORIGINAL BRAKE LINES. THE FUEL LINES ALSO ROTTED OUT SPILLING FUEL OVER THE TOP OF THE FUEL TANK AND ON THE GROUND WHILE FILLING UP. ALL FUEL LINES AND FUEL PUMP CONNECTIONS WERE SEVERELY ROTTED. WORST I HAVE SEEN. DASH CONSISTENTLY CHANGES LANGUAGES RENDERING ODOMETER NON FUNCTIONAL. SPEEDOMETER IS INACCURATE SOME TIMES NOT EVEN WORKING ESPECIALLY ON COLD DAYS. HMMMM ROTTED BRAKES+NO SPEEDOMETER+LEAKY FUEL LINES=CRASH,BANG BOOM!..AND I HAVE A CAR SEAT IN MY VEHICLE! LUCKLY I PERFORM PREVENTATIVE MAINTENANCE AND DRIVE SAFELY. STILL WONDER HOW THESE ISSUES GOT SWEPT UNDER THE RUG.

NHTSA complaint #10818811 — an unverified report by a vehicle owner.

at 120,000 miles Valencia, PA

FUEL/PROPULSION SYSTEM

RUSTED OUT/ CORRODED BRAKE LINES BURST WHILE STOPPING FOR A DEER RUNNING OUT ON THE ROAD. WAS WARNED OF THIS PROBLEM UPON PURCHASE OF THE VEHICLE IN 2010 AND PERSONALLY COATED ALL BRAKE LINES B4 WINTER EVERY YEAR...NEVER SAW WORSE LINES! I OWN CLASSIC CARS THAT ARE TWICE AS OLD WITH SHINEY ORIGINAL BRAKE LINES. THE FUEL LINES ALSO ROTTED OUT SPILLING FUEL OVER THE TOP OF THE FUEL TANK AND ON THE GROUND WHILE FILLING UP. ALL FUEL LINES AND FUEL PUMP CONNECTIONS WERE SEVERELY ROTTED. WORST I HAVE SEEN. DASH CONSISTENTLY CHANGES LANGUAGES RENDERING ODOMETER NON FUNCTIONAL. SPEEDOMETER IS INACCURATE SOME TIMES NOT EVEN WORKING ESPECIALLY ON COLD DAYS. HMMMM ROTTED BRAKES+NO SPEEDOMETER+LEAKY FUEL LINES=CRASH,BANG BOOM!..AND I HAVE A CAR SEAT IN MY VEHICLE! LUCKLY I PERFORM PREVENTATIVE MAINTENANCE AND DRIVE SAFELY. STILL WONDER HOW THESE ISSUES GOT SWEPT UNDER THE RUG.

NHTSA complaint #10818811 — an unverified report by a vehicle owner.

at 111,500 miles Lititz, PA

SERVICE BRAKES

RUSTED BRAKE LINE

NHTSA complaint #10806362 — an unverified report by a vehicle owner.

at 90,000 miles Cheshire, CT Fire

ENGINE

DROVE FROM MY HOME TO COWORKERS (20MINS) LEFT TRUCK IN COWORKERS DRIVEWAY ,AND WENT TO WORK. ONE HOUR LATER COWORKER REC'D CALL FROM NEXT DOOR THAT MY TRUCK WAS ON FIRE.

NHTSA complaint #10787590 — an unverified report by a vehicle owner.

Paso Robles, CA

FUEL/PROPULSION SYSTEM

GMC REPLACED ALL 8 FUEL INJECTORS UNDER WARRANTY AT 95,000 MILES. SAME PROBLEM AGAIN AT 135,000 AND WILL NOT COVER THEM. ESTIMATED $5,500 TO REPLACE BY CONSUMER WITH ONLY A 12 MONTH WARRANTY. CREATES POOR FUEL ECONOMY, EXCESSIVE SMOKE AT IDLE AND WILL NOT PASS SMOG IF NOT CORRECTED.

NHTSA complaint #10787134 — an unverified report by a vehicle owner.

at 41,690 miles Pittsburgh, PA

SERVICE BRAKES

I EXPERIENCED A BRAKE LINE FAILURE ON MY 2004 GMC SIERRA CREW CAB PICKUP TRUCK. I WAS TRAVELING AT A SLOW RATE OF SPEED AND COMING UP TO A TRAFFIC LIGHT AND THE BRAKE PEDAL PUSHED ALL THE WAY TO THE FLOOR BOARD. THE REAR EMERGENCY BRAKE WAS USED TO STOP THE VEHICLE. I FOUND THE AREA AROUND THE BRAKE MODULE, IN THE FRAME AREA UNDER THE DRIVER'S AREA, SOAKED WITH BRAKE FLUID AND CORRODED BRAKE LINES.

NHTSA complaint #10732170 — an unverified report by a vehicle owner.

at 86,150 miles Waynesbor, VA

SERVICE BRAKES

ON DECEMBER 28, 2014 I WAS DRIVING MY 2004 GMC PICK-UP TRUCK AND SUFFERED TOTAL LOSS OF BRAKES. THIS HAPPENED AS I WAS APPROACHING AN INTERSECTION AND I NARROWLY AVOIDED AN ACCIDENT. THERE WAS NO WARNING PRIOR TO THE BRAKE FAILURE - NO WARNING LIGHT WAS ON, AND NO GRADUAL DECREASE IN BRAKING ABILITY. AFTER THE FAILURE, I DETERMINED THAT THERE WAS A SUDDEN AND MASSIVE LEAK OF BRAKE FLUID FROM A RUSTED BRAKE LINE. PREVIOUSLY, IN APRIL OF 2014 I HAD MY PICK-UP TRUCK SERVICED AT AN AUTHORIZED GMC SERVICE CENTER. AT THAT TIME, THE SERVICE TICKET REFERENCED CONDITION OF BRAKES TO BE IN YELLOW REQUIRING FUTURE ATTENTION. IT WAS MY UNDERSTANDING THAT THE ISSUE AT THAT TIME WAS BRAKE ROTORS WOULD NEED TO BE REPLACED AT THE NEXT SERVICE INTERVAL. THERE WAS NO MENTION OF ANY POTENTIAL DANGER FROM BRAKE LINE RUSTING/FAILURE. UPON RESEARCHING VEHICLE ISSUES ON THE WEB I HAVE DISCOVERED THAT THERE SEEMS TO BE AN INORDINATE NUMBER OF BRAKE LINE FAILURES FOR VEHICLES OF MY TYPE. IT APPEARS GMC HAS REFUSED TO ISSUE A RECALL. I HAD MY VEHICLE TOWED TO THE GMC DEALER AND HAD THEM REPLACE RUSTING BRAKE LINES ($801.64). THE REPLACEMENT GMC BRAKE LINES INSTALLED ARE OF A DIFFERENT (IMPROVED) DESIGN - THEY HAVE A PAINTED/PROTECTIVE COATING ON THEM, WHICH APPEARS TO BE AN ATTEMPT TO ADDRESS PAST PREMATURE BRAKE LINE FAILURE ISSUES.

NHTSA complaint #10715937 — an unverified report by a vehicle owner.

at 126,500 miles Lumber Bridge, NC

ENGINE

I SMELLED EXHAUST FUMES IN THE CAB OF THE PICKUP TRUCK AND HEARD A SHRIEKING SOUND UNDER THE HOOD. I HAD TO PUT THE WINDOW DOWN TO RELIEVE MY DIZZINESS FROM THE FUMES. UPON INVESTIGATION I FOUND 3 OF THE 6 BOLTS BROKEN THAT FASTEN THE EXHAUST MANIFOLD TO THE ENGINE. EXHAUST FUMES ARE LEAKING FROM THE BURNED OUT GASKET.

NHTSA complaint #10713935 — an unverified report by a vehicle owner.

at 92,546 miles York PA, PA

SERVICE BRAKES

AGAIN. MY TRUCK HAD COMPLETE BRAKE FAILURE AGAIN DUE TO CORROSION ON THE STEEL LINES. THIS IS AN OTHERWISE NICE TRUCK WITH BRAKE LINES THAT LOOK LIKE THEY'VE BEEN IN THE OCEAN THEIR ENTIRE LIVES. GM DEALER QUOTED OVER $1,700 TO FIX. GM OWNED WARRANTY COMPANY REFUSES TO COVER REPAIR. GM CUSTOMER SERVICE TELLS ME TO POUND SAND.

NHTSA complaint #10704248 — an unverified report by a vehicle owner.

at 79,200 miles Bristol, TN

SERVICE BRAKES

DRIVING ON WEST STONE DRIVE KINGSPORT, TN, A VEHICLE CUT ME OFF TRYING TO GET THRU A TRAFFIC LIGHT, I LOCKED MY BRAKES DOWN HARD AS I COULD, I COULD FEEL THE ABS SYSTEM WORKING, I WAS ABLE TO STOP ABOUT 12 INCHES FROM THE OTHER VEHICLE. WHEN I PULLED OUT AFTER THE LIGHT CHANGED TO GREEN, I WAS TRAVELING DOWN A SLIGHT GRADE, DEPRESSING MY BRAKE PEDAL LIGHTLY, THE PEDAL WENT ALL WAY TO THE FLOOR BOARD.. I TOOK THE TRUCK TO A LOCAL SHOP TO HAVE IT CHECKED, ONE OF THE BRAKE LINES BEHIND LEFT FRONT WHEEL HAD RUPTURED. WHEN THE MECHANIC STARTED THE REPAIRS, HE CALLED SAID ALL LINES ON THIS TRUCK WERE EXTREMELY RUSTY, (HE ASKED WHAT I WANTED TO DO) I SAID FIX IT RIGHT. IN MAKING THE REPAIRS ALL LINES WERE REPLACED.. I HAVE PICTURES OF ALL LINES THAT CAN BE SENT. I ALSO HAVE ALL OF THE BRAKE LINES THAT CAN BE LOOKED AT AND OR ANALYZED.

NHTSA complaint #10671688 — an unverified report by a vehicle owner.

at 142,385 miles Traverse City, MI

SERVICE BRAKES

AFTER HAVING A GM DEALER PERFORM OIL CHANGE, PERHAPS 1/4 MILE DOWN THE STREET FROM THEIR FACILITY ENCOUNTERED TRAFFIC STOPPED AT AN INTERSECTION IN FRONT OF ME. APPLIED THE BRAKES TO FIND THAT THEY FELT MUSHY, AND BEFORE COMPLETELY STOPPING WENT TO THE FLOOR. I USED THE PARKING BRAKE TO BRING THE VEHICLE TO A STOP WITHOUT CRASHING INTO THE CARS IN FRONT OF ME. WHEN THE LIGHT TURNED GREEN I NURSED THE VEHICLE INTO A PARKING LOT USING THE PARKING BRAKE AND LOOKED UNDER THE HOOD AND COULD FIND NO ISSUE, THE WEATHER WAS VERY WET AND SLOPPY, AND LIGHT SNOW SO I COULD NOT SEE THE TELL TALE FLUID LEAKAGE FROM A BRAKE LINE. BECAUSE I HAD LOST ALL BRAKING I ASSUMED THAT THE MASTER CYLINDER HAD FAILED. I HAD CHANGED ALL CALIPERS, ROTORS AND PADS SEVERAL MONTHS BEFORE, AND AT 140,000 THOUGHT THAT THE MASTER CYLINDER FAILING WOULD BE UNUSUAL, BUT THE ONLY THING THAT WOULD CAUSE COMPLETE FAILURE. AFTER REPLACING THE MASTER I ATTEMPTED TO BLEED THE SYSTEM ONLY TO FIND THAT THE PROBLEM REMAINED. NOW THAT THE UNDER HOOD AREA WAS COMPLETELY DRY IT WAS CLEAR THAT THE FAILURE WAS RUST THROUGH AT A POINT THE LINE TO THE LEFT FRONT WHEEL WAS IN CONTACT WITH THE FRAME RAIL BELOW THE MASTER CYLINDER. THE OIL CHANGE HAD PROBABLY CAUSED MOVEMENT OF THE LINE RESULTING IN THE FAILURE. MOVING SOME OF THE OTHER LINES MADE IT APPARENT THAT ALL OF THE HARD LINES WERE SHOT. THE SLIGHTEST MOVEMENT CAUSED THEM TO FRACTURE. WORSE THAN THAT, THEY WERE ALL ENCASED IN A "SHELL" OF RUST FROM ONE END TO THE OTHER, CONCEALING HOW FRAGILE AND DANGEROUS THEY REALLY WERE. REPAIR ESTIMATES WERE ANYWHERE FROM $800 (LOCAL MECHANICS) TO $3,400 (GM DEALER). LOVELY. I HAD A 1994 S10 BLAZER THAT I SOLD A COUPLE OF YEARS AGO WITH 290,000 MILES ON IT, ORIGINAL BRAKE LINES AND ALL. CHANGED THE LINES MYSELF IN A WEEKEND FOR $120.00, THE GM PARTS GUY NEW EXACTLY WHAT I NEEDED AND HAD THE "KIT" IN STOCK, WHAT A SURPRISE.

NHTSA complaint #10671548 — an unverified report by a vehicle owner.

at 180,000 miles Fort Wayne, IN

ENGINE

EXHAUST MANIFOLD BOLTS BREAKING OFF CAUSING EXHAUST LEAK WHERE MANIFOLD BOLTS ONTO HEAD. DUE TO EXHAUST LEAK NOW VEHICLE IS THROWING CODES FOR CATALYTIC THRESHOLD LOW. WHICH LEADS TO A MAGNITUDE OF PROBLEMS TO LACK OF POWER, POOR FUEL MILEAGE AND NOT BEING ABLE TO PASS EMISSION TEST IN SOME STATES. PROBLEM RESULTS IN UPWARD OF THOUSAND DOLLARS IN REPAIR FOR FAULTY BOLTS, AFTER RESEARCHING SAID PROBLEM IT IS A COMMON PROBLEM WITH GM V8 OF THIS YEAR OLDER AND NEWER AS WELL. THIS IS A MAJOR DEFECT AND FLAW IN GM'S DESIGN AND NEEDS TO BE ADDRESSED ASPA!!! THIS IS A PROB THAT IS AFFECTING EPA LAWS AND NEEDS ACTION TAKEN AGAINST GM TO FIX THIS PROBLEM BEFORE IT GETS WORSE. GM NEEDS TO BE HELD RESPONSIBLE FOR THEIR VEHICLES AND POOR DESIGN AND OR PRODUCTS THAT GO INTO THEM THAT CAUSES LAWS OR SAFETY TO BE BROKEN OR EFFECTED!

NHTSA complaint #10662099 — an unverified report by a vehicle owner.

at 74,000 miles York, PA

SERVICE BRAKES

STARTED OUT WHEN BRAKE FLUID STARTED LEAKING FROM THE TRUCK. BRAKE PEDAL WENT TO THE FLOOR. LUCKILY DID NOT HAPPEN WHEN WAS DRIVING. FOUND OUT THE BRAKE LINES WERE RUSTED AND WAS LEAKING AND THE REPAIR COST WOULD BE OVER $1200. LOOKING ON THE INTERNET THIS LOOKS TO BE A KNOWN FOR CERTAIN GMC/CHEVY YEAR TRUCKS.

NHTSA complaint #10661128 — an unverified report by a vehicle owner.

at 80,000 miles Hillsboro, OR

POWER TRAIN

WILL NOT GO INTO PARK.

NHTSA complaint #10659054 — an unverified report by a vehicle owner.

at 150,000 miles Spanish Fort, AL

ENGINE

AT THE ABOVE LISTED DATE MY VEHICLE BEGAN BLOWING EXCESSIVE BLUE SMOKE THROUGH THE EXHAUST. I DISCOVERED AT THAT TIME THERE HAD BEEN A RECALL ON THE FUEL INJECTORS SEVERAL YEARS BEFORE. I ATTEMPTED TO REMEDY THIS WITH GM AT THAT TIME AND WAS TOLD I WAS TOO LATE PAST THE DATE TO GET SERVICE ON THE RECALL. I WAS NOT NOTIFIED OF A RECALL AND WOULD HAVE TAKEN CARE OF IT AT THAT TIME. IT CONTINUES TO BLOW EXCESSIVE SMOKE BUT ONLY AT IDLE. I WISH TO HAVE THE PROBLEM CORRECTED AS IT IS HURTING THE ENVIRONMENT. I WAS GIVEN A PRICE AT THE LOCAL DEALERSHIP TO REPAIR THIS ISSUE. I DON'T FEEL I SHOULD HAVE TO PAY TO HAVE IT CORRECTED AS THERE WAS A RECALL ON THE PROBLEM.

NHTSA complaint #10650036 — an unverified report by a vehicle owner.

at 84,000 miles North Branch, MN

ENGINE

MULTIPLE EXHAUST MANIFOLD BOLTS ARE BROKEN ON EACH SIDE.

NHTSA complaint #10637767 — an unverified report by a vehicle owner.

at 25,000 miles Bell Gardens, CA

ELECTRICAL SYSTEM

THE HEATING AND AC CONTROLS WERE REPLACED 2 TIMES IN 2007.AND ARE STILL NOT WORKING PROPERLY TODAY I WAS DRIVING HOME WITH THE AC ON BECAUSE IT'S 99 DEGREES IN LOS ANGELES COUNTY AND LIKE IT HAS BEEN DOING FOR YEARS IT STARTED BLOWING HOT AIR ON ITS OWN. I HAVE SEE OTHER GM VEHICLES WITH THE SAME ISSUE. SO I BELIEVE GM IS RESPONSIBLE FOR CORRECTING THIS ISSUE.

NHTSA complaint #10633779 — an unverified report by a vehicle owner.

at 25,000 miles Bell Gardens, CA

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT

THE HEATING AND AC CONTROLS WERE REPLACED 2 TIMES IN 2007.AND ARE STILL NOT WORKING PROPERLY TODAY I WAS DRIVING HOME WITH THE AC ON BECAUSE IT'S 99 DEGREES IN LOS ANGELES COUNTY AND LIKE IT HAS BEEN DOING FOR YEARS IT STARTED BLOWING HOT AIR ON ITS OWN. I HAVE SEE OTHER GM VEHICLES WITH THE SAME ISSUE. SO I BELIEVE GM IS RESPONSIBLE FOR CORRECTING THIS ISSUE.

NHTSA complaint #10633779 — an unverified report by a vehicle owner.

at 96,056 miles Staten Island, NY

SERVICE BRAKES

I WAS DRIVING IN A 40 MPH STREET WHEN I NOTICED THE TRAFFIC SIGNAL WAS ABOUT TO TURN RED WHEN I APPLIED THE BRAKES THE PEDAL WHEN DOWN TO THE FLOOR I LOST ALL BRAKES I SLOWED DOWN BY DOWN SHIFTING THE TRANSMISSION AND APPLYING THE EMERGENCY BRAKE. WHEN I PULLED OVER THERE WAS BRAKE FLUID LEAKING ALL OVER UNDER DRIVERS SIDE DOOR. UPON INSPECTION I NOTICED THE BRAKE LINES RUSTED OUT AND LOST ALL FLUID. I COULD HAVE BEEN KILLED THERE WAS NO WARNING. I NEEDED TO HAVE MY BRAKE LINES REPLACED I BELIEVE THIS IS A START OF SOMETHING BAD IF GM DOESN'T ACT ON THIS PROBLEM.

NHTSA complaint #10628988 — an unverified report by a vehicle owner.

at 90,000 miles Levittown, PA

SERVICE BRAKES

I WAS TAKING MY 4 YR OLD TO SCHOOL THIS MORNING WITH HIS 1 YR OLD SISTER WHEN THE BRAKES COMPLETELY FAILED. UPON APPROACHING A RED STOPLIGHT AT 30 MILES PER HOUR WITH THREE CARS STOPPED AHEAD OF ME I PRESSED THE BRAKE PEDAL AND IT WENT COMPLETELY TO THE FLOOR. I PULLED GEARSHIFT TO THE LOW POSITION AND SWERVED INTO THE VACANT LEFT HAND TURNING LANE TO AVOID THE CARS STOPPED AT THE LIGHT. THEN TURNED HARD RIGHT AS TO NOT ENTER THE BUSY INTERSECTION IN FRONT OF ME WITH NO AVAIL. SOMEHOW WE WERE NOT HIT BY ANOTHER VEHICLE. AT THAT TIME I PULLED VEHICLE OVER TO THE SHOULDER OF THE ROAD WHICH ENDED ABRUPTLY AND TURNED INTO A GRASSY AREA OF A BASEBALL FIELD WHERE THE VEHICLE FINALLY CAME TO A STOP.GM STATES THAT IF THERE IS A BRAKE LINE FAILURE THE VEHICLE STILL HAS BRAKING ABILITY. I CAN TELL YOU FIRST HAND THAT IS A TOTALLY FALSE STATEMENT. MY VEHICLE DASH DID NOT DISPLAY ANY PROBLEM PRIOR TO THIS INCIDENT. WHEN VEHICLE WAS TOW TO MY HOME I PUT KEY IN THE IGNITION TO CHECK MY MILEAGE AND NOW A BRAKE FAILURE MESSAGE IS DISPLAYED.I AM VERY ANGRY WITH GM FOR NOT NOTIFYING ME OF THIS PROBLEM AND NEVER HAD ANY IDEA THERE WAS AN ON GOING ISSUE UNTIL TODAY. MYSELF AND MY TWO CHILDREN COULD HAVE BEEN KILLED TODAY BECAUSE OF THIS NEGLECT. PLEASE DO SOMETHING TO RECTIFY THIS PROBLEM BECAUSE MANY MORE GM VEHICLE WILL HAVE THIS PROBLEM AND INNOCENT PEOPLE AND THEIR FAMILIES WILL BE HURT OR EVEN DIE.

NHTSA complaint #10628453 — an unverified report by a vehicle owner.

at 129,219 miles Atlantic Beach, NC

SERVICE BRAKES

BRAKE PEDAL HAD NO PRESSURE AND WENT TO THE FLOOR. TRUCK WOULDN'T STOP. LATER I NOTICED A BRAKE FLUID LEAK. THERE WAS NO LEAK BEFORE THE INCIDENT AND BRAKES WORKED PERFECTLY EARLIER IN THE DAY. IF I HADN'T BEEN IN A PARKING LOT AND OUT ON THE ROAD, THERE WOULD CERTAINLY HAVE BEEN AN ACCIDENT.

NHTSA complaint #10626106 — an unverified report by a vehicle owner.

at 55,000 miles Wappingers Falls, NY

SERVICE BRAKES

THE BRAKE LINE RUPTURED ON MY 2004 GMC SIERRA 1500 PICK UP TRUCK - INSPECTED BY A CERTIFIED MECHANIC, ALL REMAINING LINES NEED TO BE CHANGE DUE TO CORROSION.

NHTSA complaint #10622548 — an unverified report by a vehicle owner.