NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
184 reportsClear category filter70,000 miles · Nov 17, 2018
Service Brakes
MY BRAKE LINES ON MY SILVERADO HAVE BEEN REPLACED 5 DIFFERENT LINES IN 4 YEARS THE TRUCK HAS 90,000 MILES ON IT AND IN THE LAST MONTH 3 TIMES IVE LOST BRAKES THE GUY WHO FIXES MY BRAKE LINES TELLS ME THE LINES ARE RUSTED OUT EACH TIME THIS HAPPENS, HE TOLD ME HE CANT TELL BY SIGHT WHEN THEY WILL FAIL CAUSE THEY LOOK OK BUT THAT'…
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MY BRAKE LINES ON MY SILVERADO HAVE BEEN REPLACED 5 DIFFERENT LINES IN 4 YEARS THE TRUCK HAS 90,000 MILES ON IT AND IN THE LAST MONTH 3 TIMES IVE LOST BRAKES THE GUY WHO FIXES MY BRAKE LINES TELLS ME THE LINES ARE RUSTED OUT EACH TIME THIS HAPPENS, HE TOLD ME HE CANT TELL BY SIGHT WHEN THEY WILL FAIL CAUSE THEY LOOK OK BUT THAT'S NOT THE CASE, I'VE READ THIS IS A ISSUE WITH THESE VEHICLE'S IVE BEEN LUCKY SO FAR (KNOCK ON WOOD) BUT THE COST AND THE STRESS OF HAVING YOUR BRAKES FAIL IS UNACCEPTABLE SEEING THE LINES ARE NOT UP TO NORMAL STANDARDS, SOMEONE SHOULD BE HELD RESPONSIBLE FOR THIS ISSUE
NHTSA ODI #11152177
158,722 miles · Oct 2, 2018
Service Brakes
IN JULY OF 2018, MY 2002 CHEVROLET SILVERADO HAD MAJOR BRAKE FAILURE AS I WAS DRIVING ABOUT 35 MPH APPROACHING A RED LIGHT. I PRESSED ON THE BRAKES, IT WENT TOTALLY TO THE FLOOR AND I WAS UNABLE TO STOP, BLOWING RIGHT THROUGH RED LIGHT. MY MECHANIC TOLD ME THE MY BRAKE LINE RUSTED THROUGH, AND ALL THE BRAKES LINES, AS WELL AS T…
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IN JULY OF 2018, MY 2002 CHEVROLET SILVERADO HAD MAJOR BRAKE FAILURE AS I WAS DRIVING ABOUT 35 MPH APPROACHING A RED LIGHT. I PRESSED ON THE BRAKES, IT WENT TOTALLY TO THE FLOOR AND I WAS UNABLE TO STOP, BLOWING RIGHT THROUGH RED LIGHT. MY MECHANIC TOLD ME THE MY BRAKE LINE RUSTED THROUGH, AND ALL THE BRAKES LINES, AS WELL AS THE FUEL LINE IS TOTALLY RUSTED. I WAS TOLD THAT THIS IS VERY COMMON IN THIS CHEVROLET / GM MODEL ERA. HE SAID IF ALL HE WERE TO DO IS REPLACE BRAKE LINES IN THIS 1999 TO 2006 ERA, IT WAS ENOUGH TO KEEP HIS BUSINESS BOOMING. WHAT SHOCKING STRUCK ME IS THAT HE TOLD ME THEY ALL FAIL UNDER THE DRIVERS SIDE DOOR, ALONG THE FRAME, BEFORE THE ABS MODULE. THIS IS DEFINITELY A SAFETY HAZARD THAT SHOULD BE ADDRESSED. MYSELF, AS WELL AS OTHERS COULD OF BEEN KILLED WHEN I WAS UNABLE TO STOP AT THE RED LIGHT. JOHN D. NORRISTOWN, PA.
NHTSA ODI #11132892
1 miles · Aug 29, 2018
Service Brakes
THERE IS A MAJOR SAFETY DESIGN FLAW IN THE 1999-2002 BRAKE SYSTEM. THE FRONT TIRES THROUGH THE SALT AND GRIME FROM THE ROADS ONTO THE BRAKE LINES WHERE CHEVROLET HAS LOCATED THEM IN THE DESIGN. THIS CAUSES THE BRAKE LINES TO CORRODE AND BURST DURING DRIVING. MINE HAVE NOW BURST FOR THE SECOND TIME IN THE LAST 5 YEARS. THE FIRST…
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THERE IS A MAJOR SAFETY DESIGN FLAW IN THE 1999-2002 BRAKE SYSTEM. THE FRONT TIRES THROUGH THE SALT AND GRIME FROM THE ROADS ONTO THE BRAKE LINES WHERE CHEVROLET HAS LOCATED THEM IN THE DESIGN. THIS CAUSES THE BRAKE LINES TO CORRODE AND BURST DURING DRIVING. MINE HAVE NOW BURST FOR THE SECOND TIME IN THE LAST 5 YEARS. THE FIRST TIME IN 2013 I WAS DRIVING AT ABOUT 35-40 MPH WHEN I WENT TO MAKE A RH TURN AND THE BRAKES WENT TO THE FLOOR. THIS TIME I HAD WENT TO A LOCAL GAS STATION AND WAS ON THE WAY HOME WHEN I STOPPED TO TALK TO A NEIGHBOR AND ONCE AGAIN THE BRAKE PEDAL WENT TO THE FLOOR. I DRIVE THE TRUCK VERY LITTLE SO I HAVE ONLY PUT JUST OVER 17,000 MILES ON THE NEW SET OF BRAKE LINES THAT I HAD INSTALLED BY A CHEVROLET DEALER IN 2013. I LIVE IN SOUTHERN INDIANA, JUST NORTH OF LOUISVILLE, KY SO OUR WINTERS ARE NOT THAT HARSH, SO THE AMOUNT OF SALT FROM ROADS IS PRETTY LIMITED. I HAVE TALKED WITH OTHER CHEVROLET SILVERADO, YUKON AND SUBURBAN OWNERS AND THEY ALL SHARE HAVING THE SAME ISSUES WITH THEIR BRAKE LINES. I HAVE WENT TO YOUTUBE TO SEE HOW TO MAKE THE REPAIRS MYSELF AND HAVE SEEN COUNTLESS VIDEOS ON INDIVIDUALS REPAIRING THEIR BRAKES BECAUSE OF THE CORROSION AND THE BRAKE LINES BURSTING. COME ON NHTSB WHAT ARE YOU WAITING ON BEFORE YOU ISSUE A RECALL, SOMEONE TO DIE OR BE PERMANENTLY DISABLED! DO THE RIGHT THING AND ISSUE A RECALL TO FIX THE BRAKES WITH STAINLESS STEEL LINES, ROTORS, CALIPERS AND BRAKE PADS THAT WILL NOT RUST AFTER A FEW YEARS!
NHTSA ODI #11123147
173,000 miles · Apr 5, 2018
Service BrakesVehicle Speed Control
I WAS DRIVING AT LOW SPEED ON A STREET THAT IS 25MH AS I BREAK TO STOP AT THE STOP SIGN MY ABS ACTIVATED. ALMOST CAUSED ME A SERIOUS ACCIDENT BECAUSE I COULDN'T STOP SO I HAD TO BREAK SO HARD MY BUT WAS ACTUALLY OFF OF THE SEAT. AND THIS CONTINUES TO HAPPEN SO NOW I HAVE TO TAKE THE ABS FUSE OUT TO DEACTIVATE MY ABS.
NHTSA ODI #11083401
130,000 miles · Mar 22, 2018
Electronic Stability Control (esc)Fuel/propulsion SystemService Brakes
TAKATA RECALL - HAVE BEEN STRANDED NUMEROUS TIMES AS IT HAS APPEARED TO BE THE FUEL PUMP NOT GETTING GAS TO START THE CAR. SOMETIME CAN HEAR PUMP RUNNING AS I HAVE REPLACE 3-4 PUMPS SINCE 2012 OR 13. SOME TIME BEATING UNDER TANK HELPS. THERE SEEM TO BE NUMEROUS COMPLAINTS ABOUT THIS PROBLEM. SECURITY LIGHT FLASHING AND START SOM…
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TAKATA RECALL - HAVE BEEN STRANDED NUMEROUS TIMES AS IT HAS APPEARED TO BE THE FUEL PUMP NOT GETTING GAS TO START THE CAR. SOMETIME CAN HEAR PUMP RUNNING AS I HAVE REPLACE 3-4 PUMPS SINCE 2012 OR 13. SOME TIME BEATING UNDER TANK HELPS. THERE SEEM TO BE NUMEROUS COMPLAINTS ABOUT THIS PROBLEM. SECURITY LIGHT FLASHING AND START SOMETIME WHEN IT IS RESET. SOUNDS WONDERFUL WHEN IT RUNS. CAN IT BE THE COMPUTER? TOWED TO A SAFE LOCATION AFTER NOT STARTING AND DIAGNOSTIC TECHNICIAN SHOW 10% FUEL PRESSURE. I PARKED WENT IN TO MAKE A PAYMENT AT A BUSINESS AND WOULD NOT START FOR 4 DAYS
NHTSA ODI #11080957
Mileage unknown · Jan 31, 2018
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS APPROACHING A STOP SIGN, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED. THE DRIVER HAD TO APPLY FORCE TO STOP THE VEHICLE, WHICH HAD STILL GONE THROUGH THE STOP SIGN DUE TO THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED BY A DEALER. THE VE…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS APPROACHING A STOP SIGN, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED. THE DRIVER HAD TO APPLY FORCE TO STOP THE VEHICLE, WHICH HAD STILL GONE THROUGH THE STOP SIGN DUE TO THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED BY A DEALER. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE VEHICLE WAS EXCLUDED FROM THE BRAKE SYSTEM RECALL. THERE WERE MORE THAN 20 TSBS ON THE BRAKE SYSTEM; HOWEVER, THE MANUFACTURER PROVIDED NO SOLUTION TO REPAIR THE VEHICLE. THE FAILURE MILEAGE WAS NOT AVAILABLE.
NHTSA ODI #11066054
168,000 miles · Jan 22, 2018
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 50 MPH, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO OPERATE. THE CONTACT STATED THAT THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD, WHICH CAUSED THE VEHICLE TO STOP. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE CONTACT WAS A CERTIFIED MECHANIC AND WAS A…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 50 MPH, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO OPERATE. THE CONTACT STATED THAT THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD, WHICH CAUSED THE VEHICLE TO STOP. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE CONTACT WAS A CERTIFIED MECHANIC AND WAS ABLE TO DIAGNOSE THAT THE BRAKE LINE WAS DAMAGED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC). THE APPROXIMATE FAILURE MILEAGE WAS 168,000.
NHTSA ODI #11064120
101,700 miles · Dec 27, 2017
Service Brakes
EXPERIENCING UNWANTED ABS ACTIVATION AT LOW SPEEDS ON DRY ROADS WHEN SLOWING DOWN AND/OR STOPPING, WITH OR WITH OUT PRESSING ON THE BREAKS.
NHTSA ODI #11056852
133,475 miles · Oct 30, 2017
Service BrakesCrash
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO STOP THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO AN UNKNOWN INDEPENDENT MECHANIC…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO STOP THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO AN UNKNOWN INDEPENDENT MECHANIC WHO INFORMED THE CONTACT THAT THE ABS CONTROL MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS TAKEN TO STEWART CHEVROLET (780 SERRAMONTE BLVD, COLMA, CA 94014) WHERE THE CONTACT WAS INFORMED ABOUT AN UNKNOWN MANUFACTURER RECALL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THE VEHICLE WAS NOT BEING REPAIRED PER THE RECALL. THE APPROXIMATE FAILURE MILEAGE WAS 133,475. *TT CONSUMER STATED HE HAD A NUMEROUS CLOSE CALLS WITH THE BRAKES. HAD ONE ACCIDENT WHERE THEY FAILED TO DO THEIR JOBS. UPDATED 8/7/18*JB
NHTSA ODI #11041306
63,000 miles · Oct 20, 2017
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE BACKING OUT OF THE DRIVEWAY, THE BRAKES DID NOT WORK. THE CONTACT HAD TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT SHIFTED TO DRIVE TO PARK THE VEHICLE BACK IN THE DRIVEWAY, BUT THE BRAKES DID NOT WORK AGAIN. THE EMERGENCY BRAKE HAD TO BE UTILIZED. THE CO…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE BACKING OUT OF THE DRIVEWAY, THE BRAKES DID NOT WORK. THE CONTACT HAD TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT SHIFTED TO DRIVE TO PARK THE VEHICLE BACK IN THE DRIVEWAY, BUT THE BRAKES DID NOT WORK AGAIN. THE EMERGENCY BRAKE HAD TO BE UTILIZED. THE CONTACT EXITED THE VEHICLE AND NOTICED BRAKE FLUID ALL OVER THE DRIVEWAY. THE CONTACT LOOKED UNDER THE VEHICLE AND NOTICED THE BRAKE LINES WERE SEVERELY RUSTED TO THE POINT THAT IT WAS HARD TO DETERMINE WHICH OF THE BRAKE LINES WAS LEAKING FLUID. THE VEHICLE WAS TOWED TO THE DEALER (KENDRED CHEVROLET IN SMITHFIELD, MISSOURI) WHERE IT WAS DIAGNOSED THAT ALL THE BRAKE LINES FAILED AND NEEDED REPLACEMENT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 63,000.
NHTSA ODI #11035131
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.