NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
133 reportsClear category filter88,000 miles · Aug 26, 2013
Power TrainService Brakes
THIS TRUCK HAS BEEN A NIGHTMARE CONCERNING ALL ASPECTS OF BRAKING SYSTEM. FIRST AT 44,000 ABS SENSORS NEEDED TO BE REPLACED, THEN AT 53,400 ALL 4 NEW ROTORS AND PADS ALL THE WAY AROUND, 82,000 MILES PARKING BRAKE NEEDS REPLACED, 81,000 FRONT AXLE SEAL LEAKING, THEN AT APPROXIMATELY 88,000 MILES BRAKE LINES POPS WITH TRAILER ATT…
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THIS TRUCK HAS BEEN A NIGHTMARE CONCERNING ALL ASPECTS OF BRAKING SYSTEM. FIRST AT 44,000 ABS SENSORS NEEDED TO BE REPLACED, THEN AT 53,400 ALL 4 NEW ROTORS AND PADS ALL THE WAY AROUND, 82,000 MILES PARKING BRAKE NEEDS REPLACED, 81,000 FRONT AXLE SEAL LEAKING, THEN AT APPROXIMATELY 88,000 MILES BRAKE LINES POPS WITH TRAILER ATTACHED. TRUCK IS TOWED TO GARAGE ONLY TO FIND THAT BRAKE LINES ARE RUSTY AND POPPED. ALL LINES WERE SUPPOSED TO BE REPLACED TOTAL COST OVER $1,000. AT 96,600 NEED FRONT ROTORS AND REAR BRAKES, AT 126,00 NEED REAR ROTORS AND FRONT BRAKES AND 1 ORIGINAL BRAKE LINE FROM REAR TO FRONT AND RIGHT FRONT THAT NEVER WAS REPLACED. COST 268.00. USED DIFFERENT GARAGES FOR WORK AND BOTH HAVE HAD TROUBLE REPLACING HYDRAULIC LINES AND ONE IS A STATE INSPECTION STATION. BRAKING SYSTEM HAS COST ME A FORTUNE AND I WILL NOT BUY ANOTHER CHEVY DUE TO HIGH REPAIR COST. TRUCK WAS NOT NEGLECTED AND SERVICED REGULARLY. HAD TO REPLACE TRANSMISSION AT 114,000 MILES WHICH LEFT ME STRANDED ONCE AGAIN. *TR
NHTSA ODI #10537354
75,000 miles · Aug 1, 2013
Service Brakes
WHILE SLOWING TO TURN INTO SERVICE STATION BRAKE PEDAL WENT TO FLOOR WITHOUT ANY WARNING. BRAKE LINE HAD RUPTURED JUST BELOW DRIVERS DOOR. *TR
NHTSA ODI #10533091
71,000 miles · Jul 31, 2013
Service Brakes
BRAKE LINE FAILURE UNDER DRIVERS SIDE CAB. WHILE MY WIFE WAS DRIVING HOME THE BRAKE PEDAL WENT TO THE FLOOR. HAD IT TOWED TO FIRESTONE AND THEY ARE CURRENTLY DOING 1841.00 WORTH OF BRAKE REPAIRS. ALL 5 LINES AT THE ABS PUMP I WAS TOLD ARE COMPLETELY ROTTED THROUGH REQUIRING 7HRS OF LABOR. IN THE RACK NEXT TO ME IS A NEWER APP…
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BRAKE LINE FAILURE UNDER DRIVERS SIDE CAB. WHILE MY WIFE WAS DRIVING HOME THE BRAKE PEDAL WENT TO THE FLOOR. HAD IT TOWED TO FIRESTONE AND THEY ARE CURRENTLY DOING 1841.00 WORTH OF BRAKE REPAIRS. ALL 5 LINES AT THE ABS PUMP I WAS TOLD ARE COMPLETELY ROTTED THROUGH REQUIRING 7HRS OF LABOR. IN THE RACK NEXT TO ME IS A NEWER APPROX 04 SUBURBAN EXACT SAME FAILURE. MET A GENTLEMAN IN THE LOBBY WITH AN 03 - 2500 EXACT FAILURE, THE MECHANIC WORKING ON THE VEHICLE HAS THE SAME AS ME AND JUST COMPLETED THE EXACT SAME REPAIR. AND A FRIEND AT WORK WITH AN 01 JUST TOOK A WEEK DOING ALL THE LINES ON HIS. EXACT SAME REPAIR. PLEASE DO SOMETHING BEFORE SOME ONE DOES GET KILLED. 10 SECONDS EARLIER AND MY WIFE WOULD HAVE DRIVEN THIS 6000+LB TRUCK INTO SOMEONE IN FRONT OF HER AT 40 MPH INTO THE BUSIEST INTERSECTION OF TOWN. *TR
NHTSA ODI #10532855
86,000 miles · Jul 19, 2013
Service Brakes
LUCKILY, I WAS STOPPED AT A LOCAL BANK ATM MACHINE, AND WHILE SITTING THERE, A PLUME OF VAPOR OCCURRED AROUND MY VEHICLE, WHICH I FIRST THOUGHT IT TO BE A RUPTURED COOLANT HOSE, AS THE VAPOR HAD THE SMELL OF SOME TYPE OF FLUID. I PULLED ASIDE AND SAW THAT IT WAS A RUPTURED BRAKE LINE. THIS OCCURRED IN FEBRUARY OF 2013 AND AGAIN …
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LUCKILY, I WAS STOPPED AT A LOCAL BANK ATM MACHINE, AND WHILE SITTING THERE, A PLUME OF VAPOR OCCURRED AROUND MY VEHICLE, WHICH I FIRST THOUGHT IT TO BE A RUPTURED COOLANT HOSE, AS THE VAPOR HAD THE SMELL OF SOME TYPE OF FLUID. I PULLED ASIDE AND SAW THAT IT WAS A RUPTURED BRAKE LINE. THIS OCCURRED IN FEBRUARY OF 2013 AND AGAIN IN JULY OF 2013, AS I JUST HAD ALL THE BRAKE LINES REPLACED. ON THE FIRST OCCURRENCE, I STARTING THINKING OUTSIDE THE BOX, THAT REGARDLESS OF THE EXPOSURE OF SUCH LINES IN THE NORTHEAST, THAT THEY SHOULD BE MADE OF A RESISTANT MATERIAL (RE: SS). LUCKILY I WAS STOPPED ON BOTH OCCASIONS, AND AT THE VERY SAME SPOT ON BOTH OCCURRENCES?? FIGURE THAT ONE OUT. I EVER MADE CONTACT TO GM, AS MOST VEHICLE EXHAUSTS ARE SS, NOW WHY DO THEY NOT MAKE BRAKE LINES AND FUEL LINES OUT OF SS? HEY! WE ALL THE KNOW THE REASON WHY! I TOTALLY FEEL THAT GM OWES ME AND MANY OTHERS A REIMBURSEMENT ON THE NEEDED REPAIRS. TRUTHFULLY! I AM LUCKY THAT MY VEHICLE WAS STOPPED ON BOTH OCCURRENCES! WHAT COULD HAPPEN IN SO MANY OTHER SITUATIONS! I USE MY VEHICLE A LOT TO TRANSPORT MY YOUNG GRANDCHILDREN, AND THANK GOD THAT THEY WERE NOT WITH ME, AND THAT I WAS NOT TRAVELING WHEN BOTH OF THESE INCIDENTS OCCURRED. THANK YOU FOR LETTING ME SUBMIT! *TR
NHTSA ODI #10525710
57,150 miles · Jun 24, 2013
Service Brakes
STEEL BRAKE LINE FROM FRONT TO REAR BEFORE REAR SPLITTER RUSTED THROUGH AND CAUSED A MAJOR LEAK WHILE TOWING A TRAILER DOWN A HILL. TRAILER WAS EMPTY AT THE TIME SINCE I HAD JUST EMPTIED IT. FORTUNATELY I COULD DOWN SHIFT INTO 1ST AND RUN THE VEHICLE ONTO THE BERM AND SIDE OF THE ROAD SWERVING TO BLEED OFF SPEED UNTIL I COULD G…
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STEEL BRAKE LINE FROM FRONT TO REAR BEFORE REAR SPLITTER RUSTED THROUGH AND CAUSED A MAJOR LEAK WHILE TOWING A TRAILER DOWN A HILL. TRAILER WAS EMPTY AT THE TIME SINCE I HAD JUST EMPTIED IT. FORTUNATELY I COULD DOWN SHIFT INTO 1ST AND RUN THE VEHICLE ONTO THE BERM AND SIDE OF THE ROAD SWERVING TO BLEED OFF SPEED UNTIL I COULD GET TO THE BOTTOM OF THE HILL AND THEN TURN INTO SOFT DIRT TO STOP THE VEHICLE. THERE WAS NO WARNING, AND THE PEDDLE WENT RIGHT TO THE FLOOR, NO BRAKING AT ALL. TRIED TO PUMP BRAKES, BUT WENT RIGHT TO FLOOR IN LESS THAN A SECOND. THE STEEL LINE COMPLETELY SEPARATED. *TR
NHTSA ODI #10521573
125,000 miles · Jun 15, 2013
Equipment Adaptive/mobilityService BrakesCrash
I WAS DRIVING DOWN A STATE ROAD WHEN I NEEDED TO STOP FOR AN INTERSECTION STOP SIGN; MY BRAKE PEDAL WENT ALMOST TO THE FLOOR. THE BRAKING POWER WAS REDUCED TO SUCH A DEGREE THAT I PASSED THROUGH THE INTERSECTION JUST BEING MISSED BY ANOTHER VEHICLE TRAVELING ON THE OTHER ROADWAY THAT DID NOT HAVE TO STOP. THE BRAKE FLUID RESERVO…
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I WAS DRIVING DOWN A STATE ROAD WHEN I NEEDED TO STOP FOR AN INTERSECTION STOP SIGN; MY BRAKE PEDAL WENT ALMOST TO THE FLOOR. THE BRAKING POWER WAS REDUCED TO SUCH A DEGREE THAT I PASSED THROUGH THE INTERSECTION JUST BEING MISSED BY ANOTHER VEHICLE TRAVELING ON THE OTHER ROADWAY THAT DID NOT HAVE TO STOP. THE BRAKE FLUID RESERVOIR WAS EMPTY IN THE FRONT SECTION AND ONLY SMALL AMOUNT IN THE REAR SECTION. I DROVE THE VEHICLE THE REST OF THE WAY AT 15 MPH BECAUSE THE BRAKING ABILITY WAS SO DIMINISHED IT WOULD NOT STOP FAST ENOUGH AT A HIGHER SPEED. MY FRONT BUMPER GUARD WAS DENTED AND BENT WHEN IT IMPACTED A CAR STOP BOLLARD AT A STOP ON THE WAY HOME. I COULD NOT CALL A WRECKER BECAUSE I HAD NO SIGNAL ON MY CELL PHONE AND I COULD NOT WALK FOR HELP BECAUSE I AM DISABLED AND CAN ONLY WALK VERY SHORT DISTANCES (I HAVE A STATE ISSUED HANDICAP PLACARD). UPON EXAMINATION A RUSTED THROUGH BRAKE LINE WAS FOUND TO BE THE CAUSE. THE OTHER BRAKE LINES ARE IN THE SAME RUSTED CONDITION. I SURE HOPE DOT WILL MAKE GM CORRECT THIS PROBLEM BEFORE SOME CHILDREN ARE HURT OR KILLED. *TR
NHTSA ODI #10519964
Mileage unknown · Jun 15, 2013
Service BrakesService Brakes, Hydraulic
THERE WAS A RECALL ON AUGUST 29 2005 FOR THIS PROBLEM. RECALL NUMBER 36327 I HAVE THIS PROBLEM WITH MY TRUCK RIGHT NOW HOW SHOULD I HANDLE THIS SITUATION? IT IS THE HYDRAULIC: ABS SENSOR (THE PROBLEM STARTED SLOWLY AND NOW ITS BAD) I JUST FOUND OUT ABOUT THE RECALL. *TR
NHTSA ODI #10519944
Mileage unknown · Apr 7, 2013
Service Brakes
WENT TO SEARS TO HAVE THEIR TECHNICIANS REPLACE REAR BRAKE CALIPERS AND THEY REFUSED BECAUSE THEY SAID MY BRAKE LINES WERE SO RUSTED THAT THEY WERE ABOUT TO BREAK IF THEY TRIED TO REPLACE THE CALIPERS. THEY ADVISED ME TO GO TO THE DEALERSHIP MILTON RUBEN HERE IN AUGUSTA GEORGIA OR SOMEONE WHO DEALS WITH REPLACING STEEL BRAKE LIN…
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WENT TO SEARS TO HAVE THEIR TECHNICIANS REPLACE REAR BRAKE CALIPERS AND THEY REFUSED BECAUSE THEY SAID MY BRAKE LINES WERE SO RUSTED THAT THEY WERE ABOUT TO BREAK IF THEY TRIED TO REPLACE THE CALIPERS. THEY ADVISED ME TO GO TO THE DEALERSHIP MILTON RUBEN HERE IN AUGUSTA GEORGIA OR SOMEONE WHO DEALS WITH REPLACING STEEL BRAKE LINES. AFTER FURTHER INVESTIGATION OF THE STEEL BRAKE LINES THEY ARE COMPLETELY RUSTED THROUGHOUT THE TRUCK FROM FRONT TO BACK. I WILL BE TAKING A PICTURE TOMORROW FOR MY RECORDS.THIS IS A REAL SAFETY CONCERN AND I WILL BE TAKING IT TO A SERVICE SHOP TO BE REPLACED AS SOON AS POSSIBLE. I AM GLAD THAT SEARS POINTED THIS OUT, IT PROBABLY SAVED SOME LIVES. *TR
NHTSA ODI #10507424
91,254 miles · Feb 9, 2013
Service Brakes
UPON A ROUTINE GOF (GREASE,OIL & FILTER), THE MECHANIC AT THE TIRES PLUS SHOP AT OKEECHOBEE, FL, INVESTIGATED A LOW BRAKE FLUID ISSUE AND UPON TROUBLESHOOTING, THE BRAKE LINE BURST, LEAVING NO BRAKES. THE MECHANIC CALLED ME OUT TO THE GARAGE BAY AND SHOWED ME THE RUSTED LINE(S) AND SUGGESTED THAT THEY ALL BE REPLACED. I HAD BRAK…
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UPON A ROUTINE GOF (GREASE,OIL & FILTER), THE MECHANIC AT THE TIRES PLUS SHOP AT OKEECHOBEE, FL, INVESTIGATED A LOW BRAKE FLUID ISSUE AND UPON TROUBLESHOOTING, THE BRAKE LINE BURST, LEAVING NO BRAKES. THE MECHANIC CALLED ME OUT TO THE GARAGE BAY AND SHOWED ME THE RUSTED LINE(S) AND SUGGESTED THAT THEY ALL BE REPLACED. I HAD BRAKES UPON ARRIVING FOR THE GOF), SO THIS WAS AN UNPLEASANT "SURPRISE". THE VEHICLE COULD NOT BE DRIVEN, SO I WAS UNABLE TO SHOP FOR A COMPETITIVE JOB ESTIMATE. ALSO, I HAD TO ABANDON THE VEHICLE AND ARRANGE A RIDE, AS THE VEHICLE WOULD REMAIN OVERNIGHT AT THE TIRES PLUS GARAGE. UPON A SUBSEQUENT INTERNET SEARCH, I LEARNED THAT THIS IS A PARTICULAR PROBLEM FOR SILVERADOS AND SUBURBANS VINTAGE 1999-2006, AND WAS ENCOURAGED TO FILE THIS COMPLAINT. I HAVE THE RECEIPT FOR THE WORK WHICH WAS APPROXIMATELY $600. *TR
NHTSA ODI #10497589
197,000 miles · Jan 7, 2013
Service Brakes
BRAKE PEDAL WENT TO FLOOR AS I WAS BACKING OUT OF THE DRIVEWAY. UPON INSPECTION DISCOVERED BRAKE LINE WAS RUSTED AND HAD A HOLE. *TR
NHTSA ODI #10491749
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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