NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
468 reports108,516 miles · Jun 11, 2012
Service BrakesSuspensionWheelsCrash
I WAS PULLING INTO PARKING SPACE AND THERE WAS NO BRAKES ALSO HAPPENED WHEN I WAS PULLING OUT OF PARKING LOT OF STORE .I TOOK TO GM DEALER AND WAS TOLD THAT BOTH HUB BEARINGS WERE LOOSE AND THAT IS WHAT CAUSED ME TO LOSE ALL MY BRAKES. I HIT A CONCRETE HANDICAP SIGN WAS LUCKY NOT ANOTHER CAR IN FRONT OF ME. WHY WOULD GM MAKE A …
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I WAS PULLING INTO PARKING SPACE AND THERE WAS NO BRAKES ALSO HAPPENED WHEN I WAS PULLING OUT OF PARKING LOT OF STORE .I TOOK TO GM DEALER AND WAS TOLD THAT BOTH HUB BEARINGS WERE LOOSE AND THAT IS WHAT CAUSED ME TO LOSE ALL MY BRAKES. I HIT A CONCRETE HANDICAP SIGN WAS LUCKY NOT ANOTHER CAR IN FRONT OF ME. WHY WOULD GM MAKE A TRUCK THAT WOULD LOSE ITS BRAKES IF A BEARING WAS LOOSE I AM AFRAID TO DRIVE TRUCK THAT THE SAME THING MIGHT HAPPEN AGAIN AND MAYBE THE NEXT TIME I WON'T BE SO LUCKY. THERE WAS NO SIGN OF ANYTHING WRONG WITH THE EXCEPTION OF 4 DAYS EARLIER MY ABS LIGHT FLICKERED ON THEN OFF 1 TIME. REMAINED OFF AFTER THAT. *TR
NHTSA ODI #10461227
103,000 miles · Jun 11, 2012
Service Brakes
STARTED TRUCK, WENT TO PUT IN GEAR AND BRAKE PEDAL WENT CLEAR TO FLOOR. LOOKED UNDER TRUCK AND HAD A PUDDLE OF BRAKE FLUID APPROXIMATELY UNDER THE FRONT OF THE DRIVER'S DOOR. UPON INSPECTION, THE LINE THAT WENT FROM THE ABS MODULE UP TO THE RIGHT FRONT BRAKE HAD RUPTURED (SMALL PIN HOLE). ALL THE BRAKE LINES ON THE TRUCK ARE …
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STARTED TRUCK, WENT TO PUT IN GEAR AND BRAKE PEDAL WENT CLEAR TO FLOOR. LOOKED UNDER TRUCK AND HAD A PUDDLE OF BRAKE FLUID APPROXIMATELY UNDER THE FRONT OF THE DRIVER'S DOOR. UPON INSPECTION, THE LINE THAT WENT FROM THE ABS MODULE UP TO THE RIGHT FRONT BRAKE HAD RUPTURED (SMALL PIN HOLE). ALL THE BRAKE LINES ON THE TRUCK ARE ABOUT RUSTED THROUGH. THIS RUPTURE LEFT ME WITH NO BRAKES ON THE TRUCK. LUCKILY IT HAPPENED IN A PARKING LOT WHILE PUTTING IN GEAR INSTEAD OF WHILE TRYING TO BRAKE ON THE ROADS. *TR
NHTSA ODI #10461183
125,000 miles · Jun 6, 2012
Service Brakes
MY 16 YR OLD SON DROVE THRU AN INTERSECTION WITH NO BRAKES. JUST AVOIDING AN ACCIDENT. I KNOW 4 OTHER PEOPLE THAT OWN THE SAME KIND OF VEHICAL WITH THE EXACT SAME PROBLEM. I WILL BE CONTACTING THEM SO THEY CAN ALSO FILL THIS COMPLAINT OUT. DO PEOPLE HAVE TO DIE TO GET THIS MESS FIXED UP ?????????? *TR
NHTSA ODI #10460776
171,242 miles · May 30, 2012
Service Brakes
BRAKES WERE STAYING APPLIED AFTER BRAKING. SMELL OF BURNING BRAKES. BRAKES AND ROTORS WORN DOWN AND BRAKING DISTANCE WAS AFFECTED. BRAKE HOSES WERE FAILING AND HAD TO BE REPLACED ALONG WITH ROTORS AND BRAKE PADS. EMERGENCY BRAKE WAS WORN DOWN ALSO. REAR BRAKES AND ROTORS HAD BEEN REPLACED 7 MONTHS EARLIER. *TR
NHTSA ODI #10460085
100,000 miles · May 17, 2012
Service BrakesStructure
THE 1ST INCIDENT THIS YEAR HAPPENED IN MARCH 2012. WHILE TRAVELING DOWN A HILL AT 25 MPH I PRESSED ON THE BRAKE PEDAL AND IT WENT TO THE FLOOR. I HAD TO USE THE EMERGENCY BRAKE TO BRING THE TRUCK TO A STOP ON THE LEVEL AT THE BOTTOM OF THE HILL. THANK GOD THERE WAS NOT ANY ONE CROSSING THE STREET OR ANOTHER CAR IN FRONT OF ME.…
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THE 1ST INCIDENT THIS YEAR HAPPENED IN MARCH 2012. WHILE TRAVELING DOWN A HILL AT 25 MPH I PRESSED ON THE BRAKE PEDAL AND IT WENT TO THE FLOOR. I HAD TO USE THE EMERGENCY BRAKE TO BRING THE TRUCK TO A STOP ON THE LEVEL AT THE BOTTOM OF THE HILL. THANK GOD THERE WAS NOT ANY ONE CROSSING THE STREET OR ANOTHER CAR IN FRONT OF ME. THE MECHANIC SAID THE LEFT REAR BRAKE LINE HAD RUPTURED FROM THE METAL LINE BEING CORRODED. COST $300.00 + TOWING. COST TO REPLACE ALL LINES IS OVER A $1,000.00. CANNOT AFFORD NEW TRUCK OR THAT TYPE OF EXPENDITURE AT THIS TIME. THE 2ND INCIDENT HAPPENED TODAY, MAY 2012. WHILE TRAVELING ON A LEVEL HIGHWAY AT 35 MPH A CAR PULLED OUT IN FRONT OF ME FROM A GAS STATION AND I HAD TO HIT THE BRAKES HARD. I FELT A PULSE IN THE BRAKE PEDAL AND IT WENT TO THE FLOOR. TO AVOID HITTING THE CAR I WENT UP OVER A VERY HIGH CURB, OVER A WALKWAY AND THROUGH A PARKING LOT. I JAMMED ON THE EMERGENCY BRAKE TO BRING IT TO A STOP. LOOKED UNDER THE TRUCK AND THE FRAME IS COVERED WITH BRAKE FLUID UNDER THE DRIVERS SEAT. ANOTHER GUY STOPPED TO SEE IF I WAS O.K.. I HAD HIM PRESS ON THE BRAKE PEDAL AND LOOKED UNDER THE TRUCK. YOU COULD SEE THE FLUID SQUIRTING OUT OF 2 CORRODED, RUPTURED BRAKE LINES. HAD THE TRUCK TOWED. I HAVE HAD PROBLEMS WITH METAL CORROSION ON THIS TRUCK SINCE DAY ONE. THE REAR BUMPER HAD EXTENSIVE RUST IN 3 YEARS. WENT TO DEALER, GOT THE RUN AROUND. I REPLACED ALL FOUR BRAKE ROTORS WITH LESS THAN 35,000 AND THE PADS WERE MAINTAINED DURING THIS TIME. WENT TO DEALER, DEALER SAID THAT WAS NORMAL WEAR FOR A ROTOR. GIVE ME A BRK. IT SOUNDS LIKE BAD METAL WAS USED THROUGHOUT THIS TRUCK. *TR
NHTSA ODI #10458789
150,125 miles · May 14, 2012
Service Brakes
THE BRAKES WENT OUT - NOT TOTALLY OUT I BUT HAD TO PUSH THE BREAKS ALL THE WAY TO THE FLOOR TO GET THE CAR TO SLOWLY STOP. I HAD VERY LITTLE STOPPING POWER. SHORTLY THEREAFTER (3- 4 MINUTES LATER ) THE INSTRUMENT BREAK WARNING LIGHT CAME ON. HAD I BEEN GOING ANY FASTER I WOULD HAVE SURELY BEEN IN A SERIOUS ACCIDENT. THE CAR WAS …
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THE BRAKES WENT OUT - NOT TOTALLY OUT I BUT HAD TO PUSH THE BREAKS ALL THE WAY TO THE FLOOR TO GET THE CAR TO SLOWLY STOP. I HAD VERY LITTLE STOPPING POWER. SHORTLY THEREAFTER (3- 4 MINUTES LATER ) THE INSTRUMENT BREAK WARNING LIGHT CAME ON. HAD I BEEN GOING ANY FASTER I WOULD HAVE SURELY BEEN IN A SERIOUS ACCIDENT. THE CAR WAS TOWED TO A CHEVROLET DEALER. THEY DISCOVERED A LEAKING BREAK LINE. THEY INDICATED THAT IT WAS A RESULT OF EXCESSSIVE RUST IN THE BREAK LINE. THE WARNING LIGHT SHOULD HAVE COME ON MUCH SOONER AND THE BREAK LINE SHOULD NOT HAVE RUSTED THROUGH. $3,000 LATER, IT WAS FIXED. *JS
NHTSA ODI #10458330
Mileage unknown · May 10, 2012
Service Brakes, Hydraulic
I WAS DRIVING DOWN THE HWY AND MY BRAKES WENT COMPLETELY OUT. NO WARNING LIGHT THAT IS A LIE AND SO IS THE STATEMENT ABOUT IT SLOWLY COMING TO A STOP. LUCKILY I WAS GOING UP A HILL SO IT CAME TO A STOP THEN STARTED ROLLING BACKWARDS INTO ON COMING TRAFFIC AND I HAD TO GO OFF THE ROAD AND HIT A POLE AND BROKE MY TAILGATE OFF CAUS…
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I WAS DRIVING DOWN THE HWY AND MY BRAKES WENT COMPLETELY OUT. NO WARNING LIGHT THAT IS A LIE AND SO IS THE STATEMENT ABOUT IT SLOWLY COMING TO A STOP. LUCKILY I WAS GOING UP A HILL SO IT CAME TO A STOP THEN STARTED ROLLING BACKWARDS INTO ON COMING TRAFFIC AND I HAD TO GO OFF THE ROAD AND HIT A POLE AND BROKE MY TAILGATE OFF CAUSE THE TAILGATE PINS WERE RUSTED TO AND I LIVE IN ALABAMA. NO SALT ANYWHERE. THANKS CHEVY, NOW I CAN'T EVEN FIX THE TRUCK BECAUSE ITS GOING TO COST ME 1,000 DOLLARS. *TR
NHTSA ODI #10458068
109,000 miles · May 7, 2012
Service Brakes, Hydraulic
MY WIFE WAS ON AN ERRAND AND WHEN SHE GOT INTO THE TRUCK TO COME HOME THE BRAKE PEDDLE WAS SOFT AND WENT TO THE FLOOR BEFORE SHE WAS ABLE TO STOP. SHE WAS SCARED AND TESTED THE BRAKES AND FOUND THERE WAS SOME SO CAME HOME SLOWLY WITH A PLAN IN HER MIND TO HIT SOMETHING OTHER THAN ANOTHER CAR IN THE CASE THE BRAKES FAILED COMPLE…
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MY WIFE WAS ON AN ERRAND AND WHEN SHE GOT INTO THE TRUCK TO COME HOME THE BRAKE PEDDLE WAS SOFT AND WENT TO THE FLOOR BEFORE SHE WAS ABLE TO STOP. SHE WAS SCARED AND TESTED THE BRAKES AND FOUND THERE WAS SOME SO CAME HOME SLOWLY WITH A PLAN IN HER MIND TO HIT SOMETHING OTHER THAN ANOTHER CAR IN THE CASE THE BRAKES FAILED COMPLETELY. HAD THIS HAPPENED ON THE ROAD THERE MAY HAVE BEEN A CRASH. *TR
NHTSA ODI #10457715
115,000 miles · May 2, 2012
Service Brakes, Hydraulic
BRAKE LINE CORRODED AT ABS UNIT ALONG FRAME. *JS
NHTSA ODI #10457191
Mileage unknown · Apr 19, 2012
Engine And Engine CoolingFuel System, Gasoline
THIS TRUCK HAS SEVERAL EXHAUST HEADER BOLTS THAT ARE BREAKING OFF. THIS IS A MAJOR DEFECT AND SHOULD BE A RECALL TO REPLACE THE EXHAUST HEADER BOLTS THEY SHOULD NOT BE BREAKING OFF AND THEY ARE CAUSING EMISSION ERRORS AND NEEDING MAJOR REPAIRS. *JS
NHTSA ODI #10455735
NHTSA investigations
2EA04011 · Parking Brake Failure
Opened Apr 9, 2004 · Closed May 10, 2005
Status: closed (inferred from source dates) · Parking Brake; Parking Brake:conventional; Parking Brake:conventional:mechanical; Parking Brake:conventional:mechanical:linkage And Cable
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Additional source detail variants (4)
Parking Brake:conventional
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake:conventional:mechanical
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake:conventional:mechanical:linkage And Cable
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
PE03057 · Parking Brake Failure
Opened Dec 8, 2003 · Closed Apr 9, 2004
Status: closed (inferred from source dates) · Parking Brake
ODI OPENED PE03-057 TO ASSESS PARKING BRAKE INEFFECTIVENESS IN THE SUBJECT VEHICLES.THESE VEHICLES ARE EQUIPPED WITH FOUR WHEEL DISC BRAKES THAT INCORPORATE A SINGLE-SHOE DRUM-IN-HAT PARKING BRAKE INDEPENDENT OF THE SERVICE BRAKES.COMPLAINT AND WARRANTY DATA INDICATE THAT THE PARKING BRAKE LININGS TEND TO WEAR OUT EARLY IN THE LIFE OF THE VEHICLE (AT AN AVERAGE OF 24 MONTHS IN SERVICE), REDUCING THE PARKING BRAKE SYSTEM'S TORQUE BELOW THAT NEEDED TO IMMOBILIZE THE VEHICLE.GM HAS ATTRIBUTED THIS ACCELERATED WEAR TO FOREIGN MATERIAL INTRUSION AND A FAILURE OF THE BRAKE SHOE TO PROPERLY SELF-CENTER WITHIN ITS BRAKE DRUM.EFFECTIVE WITH THE START OF MY 2003 PRODUCTION, A NEWER REDUCED FORCE HOLD-DOWN CLIP WAS INTRODUCED TO FACILITATE BRAKE SHOE DISENGAGEMENT FROM THE DRUM SURFACE.THIS PART IS ALSO AVAILABLE AT THE SERVICE LEVEL FOR THE MY 1999-2002 VEHICLES.GM HAS INDICATED THAT THE PAKING BRAKE IS INTENDED TO OPERATE IN CONJUNCTION WITH THE TRANSMISSION TO IMMOBILZE PARKED VEHICLES, AND THAT IN MANY CASES, ACCELERATED PARKING BRAKE LINING WEAR IS CAUSED BY ROUGH USE, VEHICLE MODIFICATIONS, AND DRIVING WITH THE PARKING ENGAGED. ODI HAS UPGRADED THE PRELIMINARY EVALUATION TO AN ENGINEERING ANALYSIS TO GATHER FURTHER INFORMATION CONCERNING PARKING BRAKE USAGE FACTORS AND THE CIRCUMSTANCES SURROUNDING THE SEVENTEEN REPORTED VEHICLE CRASHES.
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