NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
40 reportsClear category filter183,500 miles · Jun 23, 2015
Power TrainService BrakesSteeringCrashInjury
TL* THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE DRIVING 50 MPH, THE VEHICLE HAD A SUDDEN LOSS OF POWER STEERING AND THE BRAKES FAILED TO ENGAGE WITHOUT WARNING. THE CONTACT MENTIONED THAT THE VEHICLE WOULD VEER TO THE RIGHT INDEPENDENTLY. AS A RESULT, THE VEHICLE CRASHED INTO A CONCRETE BARRIER AND SPUN AROUND FROM THE FRONT …
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TL* THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE DRIVING 50 MPH, THE VEHICLE HAD A SUDDEN LOSS OF POWER STEERING AND THE BRAKES FAILED TO ENGAGE WITHOUT WARNING. THE CONTACT MENTIONED THAT THE VEHICLE WOULD VEER TO THE RIGHT INDEPENDENTLY. AS A RESULT, THE VEHICLE CRASHED INTO A CONCRETE BARRIER AND SPUN AROUND FROM THE FRONT AND CRASHED IN THE REAR. THE DRIVERS SIDE AND FRONT PASSENGER SIDE AIR BAGS DEPLOYED. THE CONTACT SUSTAINED A DISLOCATED LEFT SHOULDER AND A FRACTURED RIGHT FOOT. THE CONTACT ALSO SUSTAINED WHIPLASH, NECK PAINS WHICH REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE CONTACT WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER: 05V005000 (POWER TRAIN) AND NHTSA ACTION NUMBER: EA04012 (SERVICE BRAKES, HYDRAULIC, STEERING). THE VEHICLE WAS TOWED TO THE CONTACTS RESIDENCE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 183,500.
NHTSA ODI #10726833
60,000 miles · Apr 25, 2015
Service Brakes
WE WERE TRAVELING WEST ON 495 HEADING TO GEORGETOWN HOSPITAL IN DC TAKING A FRIEND FOR HER WEEKLY KIDNEY TRANSPLANT CHECKUP FROM BALTIMORE MD. THE TRAFFIC HAD SLOWED TO A STOP AS I HIT MY BRAKES AND THEY WENT TO THE FLOOR WITH MINUTE STOPPING POWER . HAD I BEEN IN THE NEXT LANE OVER IT WOULD HAVE BEEN A WIPE OUT AS I WOULD HAVE …
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WE WERE TRAVELING WEST ON 495 HEADING TO GEORGETOWN HOSPITAL IN DC TAKING A FRIEND FOR HER WEEKLY KIDNEY TRANSPLANT CHECKUP FROM BALTIMORE MD. THE TRAFFIC HAD SLOWED TO A STOP AS I HIT MY BRAKES AND THEY WENT TO THE FLOOR WITH MINUTE STOPPING POWER . HAD I BEEN IN THE NEXT LANE OVER IT WOULD HAVE BEEN A WIPE OUT AS I WOULD HAVE REAR ENDED THE STOPPED TRAFFIC. I WAS IN THE CURB LANE AND GOT INTO THE SHOULDER. BRAKE LINES ARE TOTALLY CORRODED, RUSTED AND JUST CRUMBLING.. I NOTICED GM KNOWS ABOUT THE PROBLEM BUT REFUSES TO DO ANYTHING. WILL THEY WAIT UNTIL A FATALITY HAPPENS BEFORE THEY WARN THE PUBLIC OF THIS PROBLEM.. MANY OF THESE VEHICLES STILL ON THE ROAD.. *TR
NHTSA ODI #10712803
60,000 miles · Mar 21, 2015
Service Brakes
BRAKE LINES RUSTED OUT AND CAUSED TRUCK TO NOT BE ABLE TO STOP AND ALMOST CAUSED AN ACCIDENT. FIRST LINE WENT ABOUT 2 MONTHS AGO AND WAS REPAIRED. I ASSUMED THAT THIS WAS A SINGULAR INCIDENT AND THE REPAIR WAS FINE, AND I WOULD HAVE NO OTHER PROBLEMS. NOW, A DIFFERENT BRAKE LINE WENT. SAME EXACT PROBLEM...RUSTED OUT APPEARS…
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BRAKE LINES RUSTED OUT AND CAUSED TRUCK TO NOT BE ABLE TO STOP AND ALMOST CAUSED AN ACCIDENT. FIRST LINE WENT ABOUT 2 MONTHS AGO AND WAS REPAIRED. I ASSUMED THAT THIS WAS A SINGULAR INCIDENT AND THE REPAIR WAS FINE, AND I WOULD HAVE NO OTHER PROBLEMS. NOW, A DIFFERENT BRAKE LINE WENT. SAME EXACT PROBLEM...RUSTED OUT APPEARS THAT ALL OF THE LINES ARE AT ISSUE AND ALL OF THEM MUST BE REPLACED. I WAS LUCKY AS I HAD JUST COME OFF THE INTERSTATE HIGHWAY WHERE I WAS DOING SPEEDS OF 70MPH AND RELYING ON MY BRAKES AS WOULD BE NORMAL. JUST AS I GOT OFF THE HIGHWAY AND PULLED INTO WORK, THE LINE BLEW OUT COMPLETELY AND MY PEDAL WENT TO THE FLOOR. I HAD NO BRAKES AT ALL...NOTHING. LUCKILY, I WAS IN THE PARKING LOT, AND GOING SLOW ENOUGH AND I THOUGHT QUICKLY AND USED MY EMERGENCY BRAKES AND STOPPED. HAD THE BRAKE LINE GONE OUT JUST TWO MINUTES EARLIER, OR ABOUT TWO OR THREE BRAKE PEDAL PRESSES BEFORE, I WOULD HAVE BEEN IN A SERIOUS ACCIDENT. *TR
NHTSA ODI #10700868
34,000 miles · Feb 19, 2015
Service Brakes
WHILE TRAVELING ON COUNTRY ROAD IN QUARRYVILLE PA. I CAME TO A HILL AND A STOP SIGN AND PRESSED ON THE BRAKE PEDDLE. IT WENT TO THE FLOOR. I HAD VERY LIMITED BRAKING POWER AND TRAVELED THROUGH THE STOP SIGN ACROSS THE INTERSECTION. IT WAS A 4 WAY STOP INTERSECTION. AND NO ACCIDENT OCCURRED . BUT OH BOY DID I GET A DIRTY LOOK! …
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WHILE TRAVELING ON COUNTRY ROAD IN QUARRYVILLE PA. I CAME TO A HILL AND A STOP SIGN AND PRESSED ON THE BRAKE PEDDLE. IT WENT TO THE FLOOR. I HAD VERY LIMITED BRAKING POWER AND TRAVELED THROUGH THE STOP SIGN ACROSS THE INTERSECTION. IT WAS A 4 WAY STOP INTERSECTION. AND NO ACCIDENT OCCURRED . BUT OH BOY DID I GET A DIRTY LOOK! ALL THE BRAKE FLUID WAS GONE OUT ONE HALF OF THE CONTAINER. LOOKING AT THE BRAKE LINES THEY ARE RUSTED THROUGH AND LEAKING. *TR
NHTSA ODI #10684250
240,000 miles · Jan 5, 2015
Service Brakes
MULTIPLE INCIDENCES OF STEEL BRAKE LINE CORROSION, RESULTING IN LOSS OF FLUID PRESSURE, AND THEREFORE LOSS OF BRAKING ABILITY. THIS HAS HAPPENED 3 DIFFERENT TIMES ALREADY. LUCKILY I DRIVE COUNTRY ROADS WITH LITTLE OTHER TRAFFIC.OBVIOUSLY THIS IS A REPETITIVE AND SERIOUS ISSUE FOR MANY OTHER OWNERS OF THESE VEHICLES, AS EVIDENCED…
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MULTIPLE INCIDENCES OF STEEL BRAKE LINE CORROSION, RESULTING IN LOSS OF FLUID PRESSURE, AND THEREFORE LOSS OF BRAKING ABILITY. THIS HAS HAPPENED 3 DIFFERENT TIMES ALREADY. LUCKILY I DRIVE COUNTRY ROADS WITH LITTLE OTHER TRAFFIC.OBVIOUSLY THIS IS A REPETITIVE AND SERIOUS ISSUE FOR MANY OTHER OWNERS OF THESE VEHICLES, AS EVIDENCED BY THE SHEER NUMBER OF COMPLAINTS REGARDING THE SAME ISSUE FILED TO NHTSA FOR THIS VEHICLE. DOES NHTSA EVEN READ OR EVALUATE THE VOLUME AND SERIOUSNESS OF COMPLAINTS ON THE SAME ISSUE? HOW MANY LIVES MUST BE LOST BEFORE THIS BECOMES A RECALL? *TR
NHTSA ODI #10670130
101,000 miles · Jan 2, 2015
Service Brakes
I WAS DRIVING DOWN THE HIGHWAY IN MY 2000 GMC SIERRA TRUCK WHEN I APPLIED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. I COULDN'T STOP AT THE RED LIGHT, SO I HAD TO MAKE A QUICK LEFT TURN, ACROSS ON ONCOMING TRAFFIC INTO A PARKING LOT BEFORE I COULD GET THE CAR STOPPED. THIS IS THE SECOND TIME MY BRAKES FAILED AND IN BOTH CASES…
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I WAS DRIVING DOWN THE HIGHWAY IN MY 2000 GMC SIERRA TRUCK WHEN I APPLIED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. I COULDN'T STOP AT THE RED LIGHT, SO I HAD TO MAKE A QUICK LEFT TURN, ACROSS ON ONCOMING TRAFFIC INTO A PARKING LOT BEFORE I COULD GET THE CAR STOPPED. THIS IS THE SECOND TIME MY BRAKES FAILED AND IN BOTH CASES IT WAS BECAUSE THE STEEL BRAKE LINES ROTTED OUT. I'VE OWNED MANY GM VEHICLES AND NEVER HAD TO REPLACE THE STEEL BRAKE LINES, NOT EVEN ON MY 1969 OLDS CUTLASS THAT I STILL OWN. I READ ABOUT OTHERS HAVING THE SAME PROBLEM AND SUPPOSEDLY GM DID NOT RECALL. BUT WAS GOING TO REPLACE PARTS AND LABOR FOR $500. I CALLED GMC AND THEY SAID THEY DIDN'T KNOW OF THIS AND I CALLED 2 DEALERS AND THEY DIDN'T KNOW OF THIS KIT EITHER. SO, I GUESS I HAVE A BIG BILL ON MY HANDS. CHEAP BRAKE LINES WERE USED BUILDING THIS TRUCK, AND BRAKES ARE PRETTY IMPORTANT TO STOP. I'M LUCKY I WAS ABLE TO GET OUT OF THIS SITUATION WITHOUT WRECKING. *TR
NHTSA ODI #10669692
80,000 miles · Dec 15, 2014
Service Brakes
HAD A RECALL ON THE BRAKES, RECALL # 05068. CLASSIC CHEVEROLET (NOW OUT OF BUSINESS DID THE WORK) THEY ONLY CLEANED THE PARTS, ABS LIGHT CAME BACK ON A FEW MONTHS LATER SO THEY JUST KEPT CLEANING THEM UNTIL MY WARRANTY EXPIRED. THEN WHEN I BROUGHT IT BACK IT ALL OF A SUDDEN NEED OVER $2000 DOLLARS OF REPAIRS. MY WIFE GOT THEM TO…
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HAD A RECALL ON THE BRAKES, RECALL # 05068. CLASSIC CHEVEROLET (NOW OUT OF BUSINESS DID THE WORK) THEY ONLY CLEANED THE PARTS, ABS LIGHT CAME BACK ON A FEW MONTHS LATER SO THEY JUST KEPT CLEANING THEM UNTIL MY WARRANTY EXPIRED. THEN WHEN I BROUGHT IT BACK IT ALL OF A SUDDEN NEED OVER $2000 DOLLARS OF REPAIRS. MY WIFE GOT THEM TO KICK IN A $1000. BUT I BELIEVE THE PARTS SHOULD OF BEEN RE MANUFACTURED OUT OF STAINLESS STEEL SO THEY DIDN'T RUST & I WOULDN'T STILL BE HAVING HIS PROBLEM. NOW I'M PROBABLY LOOKING AT ANOTHER $2000 TO CONTINUALLY FIX THE SAME ISSUE. THEY BASICALLY DID THE SAME THING WITH THE TAIL GATE RECALL, JUST REPLACED WITH NEW PARTS OF THE SAME MAT'L AS THE ONES THAT WERE RUSTING AND FAILING IN THE 1ST PLACE. SO I REPLACED THEM SINCE THEN AGAIN ALSO. WHICH IF THEY WOULD OF MADE THEM OUT OF GALVANIZED OR STAINLESS THEY WOULD OF HELD UP BETTER. *TR
NHTSA ODI #10664338
111,588 miles · Sep 7, 2014
Service Brakes
WHILE DRIVING HOME FROM WORK AT APPROXIMATELY 35MPH ON A CONGESTED ROAD, I APPLIED THE BRAKES TO STOP AT AN UPCOMING LIGHT AND THE BRAKE PEDAL IMMEDIATELY WENT TO THE FLOOR. I SWERVED INTO THE ADJACENT LANE TO AVOID REAR ENDING THE CAR IN FRONT OF ME. LUCKILY THERE WAS AN OPENING IN THE ADJACENT LANE AND THE CAR BEHIND ME WAS OB…
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WHILE DRIVING HOME FROM WORK AT APPROXIMATELY 35MPH ON A CONGESTED ROAD, I APPLIED THE BRAKES TO STOP AT AN UPCOMING LIGHT AND THE BRAKE PEDAL IMMEDIATELY WENT TO THE FLOOR. I SWERVED INTO THE ADJACENT LANE TO AVOID REAR ENDING THE CAR IN FRONT OF ME. LUCKILY THERE WAS AN OPENING IN THE ADJACENT LANE AND THE CAR BEHIND ME WAS OBSERVANT. I PULLED OFF THE ROAD AND OPENED THE HOOD TO CONFIRM THE BRAKE FLUID LEVEL. IT WAS VERY LOW. I CLIMBED UNDER THE TRUCK TO OBSERVE BRAKE FLUID EVERYWHERE AND ASSUMED A BRAKE LINE FAILED. I TOOK THE TRUCK TO A REPAIR SHOP AND WAS INFORMED THE BRAKE LINE WAS RUSTED THROUGH AND NEEDED TO BE REPLACED. A COST OF $275. UPON RESEARCHING THIS ON THE INTERNET, I HAVE SEEN THAT THIS IS A MAJOR PROBLEM AND GM IS HOLDING OUT DOING A RECALL. THIS INCIDENT CAUSED ME TO NARROWLY MISS AN ACCIDENT AND IT MADE FOR A TENSE AND ANXIOUS TIME. I BELIEVE GM SHOULD RECOGNIZE THIS ISSUE AND DO SOMETHING QUICKLY BEFORE MORE SERIOUS ACCIDENTS OCCUR. *TR
NHTSA ODI #10631323
180,000 miles · Aug 23, 2014
Service Brakes
REAR BRAKE LINE FAILED WHEN BRAKE PEDAL WAS PRESSED. UPON INSPECTION BRAKE LINE SHOWED MAJOR CORROSION, AND REMAINING LINES APPEAR TO HAVE MAJOR CORROSION AS WELL. *TR
NHTSA ODI #10627655
115,000 miles · Aug 1, 2014
Service Brakes
THE STEEL BRAKE LINES GOING TO THE REAR BRAKES RUSTED AND BLEW. AFTER A INSPECTION ALL THE STEEL BRAKE LINES NEEDED TO BE REPLACED. *TR
NHTSA ODI #10618147
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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