NHTSA owner reports · September 18, 2026 snapshot.
Structure complaints
33 reportsClear category filter174,000 miles · Sep 13, 2021
Structure
The contact owns a 2000 Chevrolet Silverado 1500. The contact stated while driving with cargo, the cables fractured, and the items in the bed of the truck shifted to the tailgate and cause the tailgate to become inoperable. The contact received notification of NHTSA campaign number: 04V129000 (Structure) however, the part to do …
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The contact owns a 2000 Chevrolet Silverado 1500. The contact stated while driving with cargo, the cables fractured, and the items in the bed of the truck shifted to the tailgate and cause the tailgate to become inoperable. The contact received notification of NHTSA campaign number: 04V129000 (Structure) however, the part to do the recall repair was unavailable. The vehicle was taken to the local dealer who declined to repair the vehicle. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the failure. The failure mileage was 174,000 Parts distribution disconnect.
NHTSA ODI #11432788
210,000 miles · Nov 30, 2016
Engine And Engine CoolingFuel System, GasolinePower Train
HAD TO DISCONNECT THE ANTI LOCK BRAKE SO I COULD STOP. WHEN DRIVING SLOW AND PRESSING ON THE BRAKE PEDAL, THE PEDAL IS SOLID AND DOES NOT MOVE. VERY DANGEROUS. CANNOT STOP THE VEHICLE AT ALL. BRAKE LINES ROTTED OUT. HAS TO REPLACE. TRANSMISSION LINES ROTTED OUT. HAD TO REPLACE. TRANSMISSION OIL COOLER ROTTED OUT. HAD TO RE…
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HAD TO DISCONNECT THE ANTI LOCK BRAKE SO I COULD STOP. WHEN DRIVING SLOW AND PRESSING ON THE BRAKE PEDAL, THE PEDAL IS SOLID AND DOES NOT MOVE. VERY DANGEROUS. CANNOT STOP THE VEHICLE AT ALL. BRAKE LINES ROTTED OUT. HAS TO REPLACE. TRANSMISSION LINES ROTTED OUT. HAD TO REPLACE. TRANSMISSION OIL COOLER ROTTED OUT. HAD TO REPLACE. FUEL LINES ARE ROTTING OUT. NOT REPLACED YET. DRIVE SHAFT IS QUESTIONABLE. SEVERELY RUSTED. REAR BACKING PLATES ROTTED OFF, NO MORE PARKING - EMERGENCY BRAKE. CHECK ENGINE LIGHT WILL NOT GO OUT. REPLACED CATALYTIC CONVERTER MANY TIMES WITH NO RESULTS. ENGINE LEAKS OIL. LOOSING COOLANT, POSSIBLE BURNING IT. FUEL MILEAGE IS TERRIBLE. BODY RUSTED OUT. ROCKER PANELS ARE GONE. CAB CORNERS ARE GONE. REAR BUMPER IS GONE. PUTTING THE SPARE TIRE UNDERNEATH IS A STUPID IDEA. THE COST TO REPLACE THESE PARTS IS TOO EXPENSIVE. FOR WHAT THESE VEHICLES COST NEW ALL OF THESE PARTS SHOULD BE MADE OUT OF STAINLESS STEEL OR USE PLASTIC FOR THE FUEL LINES AND BRAKE LINES. THE CHECK ENGINE LIGHT BEING RELATED TO A POLLUTION CONTROL DEVICE SHOULD BE ENTIRE COVERED BY THE MANUFACTURER. THESE PARTS AND WHATEVER IS UPSTREAM THAT CAUSED THE POLLUTION CONTROL PART TO FAIL SHOULD BE COVERED BY THE MANUFACTURER IN PERPETUITY. ANTI LOCK BRAKES SHOULD BE REMOVED FROM ALL CARS. THE PARTS ARE TOO EXPENSIVE TO REPLACE. THE COST SHOULD NOT BE ON THE SHOULDERS OF THE CAR OWNER. *TR
NHTSA ODI #10928822
150,000 miles · Aug 29, 2016
StructureSuspension
WENT TO GET VEHICLE INSPECTED WAS INFORMED THAT THE FRAME IS RUSTED OUT AND IS UNINSPECTABLE AND THAT I NEED TO JUNK THE TRUCK THE BODY IS GREAT HAS 150000 MILES BUT THE CROSS BRACES ARE RUSTED OUT AND ITS CRACKED OVER THE REAR AXEL WITH ALL THE PROBLEMS OYHERS ARE HAVING AND WITH TOYOTA HAVING RECALL ON FRAME RUSTING OUT GM SHO…
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WENT TO GET VEHICLE INSPECTED WAS INFORMED THAT THE FRAME IS RUSTED OUT AND IS UNINSPECTABLE AND THAT I NEED TO JUNK THE TRUCK THE BODY IS GREAT HAS 150000 MILES BUT THE CROSS BRACES ARE RUSTED OUT AND ITS CRACKED OVER THE REAR AXEL WITH ALL THE PROBLEMS OYHERS ARE HAVING AND WITH TOYOTA HAVING RECALL ON FRAME RUSTING OUT GM SHOULD BE DOING THE SAME THEY SAY THAT THE NHTSA IS THE ONE TO TELL THEM TO DO A RECALL AND UNTILL THEY ARE TOLD TO THERE IS NOTHING THAY CAN DO
NHTSA ODI #10899086
216,000 miles · Jun 7, 2016
Power TrainService BrakesSteering
EXTREME RUST ON UNDER CARRAGE OF VEHICLE. BRAKE LINES RUSTED OUT CAUSING BRAKE FAILURE FRAME RUSTED OUT AT REAR LEAF SPRINGS AND FRAME RAIL CROSS MEMBERS. REAR SHOCK HANGERS RUSTED OFF VEHICLE. FRAME RUSTED SO BAD THAT IT PROHIBITS TOUNG OF ANY TYPE OF TRAILER. TOYOTA HAD SAME PROBLEM AND THEY HAD TO DO A RECALL SO WHY HAS GM NO…
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EXTREME RUST ON UNDER CARRAGE OF VEHICLE. BRAKE LINES RUSTED OUT CAUSING BRAKE FAILURE FRAME RUSTED OUT AT REAR LEAF SPRINGS AND FRAME RAIL CROSS MEMBERS. REAR SHOCK HANGERS RUSTED OFF VEHICLE. FRAME RUSTED SO BAD THAT IT PROHIBITS TOUNG OF ANY TYPE OF TRAILER. TOYOTA HAD SAME PROBLEM AND THEY HAD TO DO A RECALL SO WHY HAS GM NOT HAD TO DO THE SAME THING. IT IS A VERY LARGE SAFETY ISSUE AFFECTING MANY VEHICLES ON THE HWY TODAY.
NHTSA ODI #10872936
10,000 miles · Feb 14, 2016
Fuel/propulsion SystemService BrakesStructureCrashInjury
THIS TRUCK HAS HAD ISSUES SINCE I FIRST PURCHASED IT. BRAKES WOULD NOT STOP THE TRUCK IN A SAFE DISTANCE WHICH ENDED UP WITH ME HAVING AN ACCIDENT WITH IT. THE BRAKE LINE RUSTED OUT AFTER LESS THAN 100,000 MILES AND NEEDED TO REPLACE THEM ALL. NOW WITH 173,000 MILES THE GAS LINES ARE LEAKING AND THE FRAME IS RUSTED SO BAD THAT I…
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THIS TRUCK HAS HAD ISSUES SINCE I FIRST PURCHASED IT. BRAKES WOULD NOT STOP THE TRUCK IN A SAFE DISTANCE WHICH ENDED UP WITH ME HAVING AN ACCIDENT WITH IT. THE BRAKE LINE RUSTED OUT AFTER LESS THAN 100,000 MILES AND NEEDED TO REPLACE THEM ALL. NOW WITH 173,000 MILES THE GAS LINES ARE LEAKING AND THE FRAME IS RUSTED SO BAD THAT IT CANNOT BE PUT UP ON A LIFT TO FIX THE BRAKE LINES.
NHTSA ODI #10826071
172,000 miles · Feb 2, 2016
Service BrakesStructureSuspension
TYPICAL GM PRODUCT, REAR BUMPER RUST OUT, BRAKE LIKES RUSTED COMPLETELY OUT, REAR CROSS MEMBERS, FUEL TANK CROSS MEMBER HAS RUSTED OUT COMPLETELY ON PASSENGER SIDE WHERE THE SHOCK MOUNTS TO AND THE SAME FOR THE REAR CROMMM MEMBER WHERE THE SHOCK MOUNTS TO ON THE DRIVER SIDE. I MEAN THE FUEL TAN CROSS MEMBER HOLDS THE TANK IN PL…
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TYPICAL GM PRODUCT, REAR BUMPER RUST OUT, BRAKE LIKES RUSTED COMPLETELY OUT, REAR CROSS MEMBERS, FUEL TANK CROSS MEMBER HAS RUSTED OUT COMPLETELY ON PASSENGER SIDE WHERE THE SHOCK MOUNTS TO AND THE SAME FOR THE REAR CROMMM MEMBER WHERE THE SHOCK MOUNTS TO ON THE DRIVER SIDE. I MEAN THE FUEL TAN CROSS MEMBER HOLDS THE TANK IN PLACE AND IF THAT TANK DROPPS THEN I'D ASSUME THAT IT WOULD BE A SAFETY ISSUE. ATLEAST I HOPE SO.
NHTSA ODI #10823877
91,423 miles · Nov 16, 2015
Structure
IN OCTOBER 2014 WENT TO HAVE ANNUAL STATE INSPECTION TO BE PERFORMED. WAS REJECTED DUE TO EXCESSIVE RUST ON FRAME. AS TRUCK WAS LIFTED THE FRAME WAS BENDING. INSPECTION STATION SAID TRUCK WAS UNSAFE TO DRIVE. NO RUST IN WHEEL WELLS, TAILGATE, BUMPERS. TRUCK HAS LESS THAN 91,500 MILES DRIVEN. APPEARANCE IS IN EXCELLENT CONDITION.…
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IN OCTOBER 2014 WENT TO HAVE ANNUAL STATE INSPECTION TO BE PERFORMED. WAS REJECTED DUE TO EXCESSIVE RUST ON FRAME. AS TRUCK WAS LIFTED THE FRAME WAS BENDING. INSPECTION STATION SAID TRUCK WAS UNSAFE TO DRIVE. NO RUST IN WHEEL WELLS, TAILGATE, BUMPERS. TRUCK HAS LESS THAN 91,500 MILES DRIVEN. APPEARANCE IS IN EXCELLENT CONDITION. HAVE REPORTED TO GMAC (CASE # 71-1508539581)AND THEY HAVE MADE NO ATTEMPT TO REPLACE FRAME. DO NOT DRIVE IT IN SALT WATER AND DO NOT TRAILER ANY BOATS OR OTHER NEAR SALT WATER. HAVE BEEN WITHOUT VEHICLE FOR OVER A YEAR. WAS TOLD THAT THIS TRUCK IF DRIVEN IS A DANGER TO DRIVE: HAVE REVIEWED YOUR COMPLAINTS FOR THIS VINTAGE VEHICLE AND MANY COMPLAINTANTS WONDER WHY SOMETHING HASN'T BEEN DONE TO REMEDY THIS APPARENT INFERIOR MATERIAL USED IN THESE TRUCKS OVER A NUMBER OF YEARS IN MANUFACTURING. HAVE IN EARLIER REPLACED THE ENTIRE BRAKE SYSTEM THAT RESULTED FROM RUST RELATED CORROSION BRAKE LINES RUNNING ALONG THE FRAME.AM WILLING TO SEND COPIES OF THE TRUCK'S OUTER CONDITION CONFIRMING THAT IT HASN'T BEEN ABUSED IN ANY WAY. PLEASE GIVE ME AN E-MAIL ADDRESS AND INSTRUCTIONS HO I MAY FORWARD THE PHOTOS TO YOUR ATTENTION. THANK YOU FOR YOUR COURTEOUS ATTENTION.
NHTSA ODI #10790611
400,000 miles · Nov 10, 2015
Structure
FARM BROKE ON THE DRIVERS SIDE AND IS CRACKED ON THE PASSENGER SIDE. THIS TRUCK HAS NOT BEEN INVOLVED IN A COLLISION. THIS WAS DISCOVERED BY A REPAIR SHOPS WHEN I WAS HAVING A FLAT TIRE FIXED.
NHTSA ODI #10789659
160,000 miles · Dec 29, 2014
Structure
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING AT APPROXIMATELY 15-20 MPH, THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE REAR OF THE VEHICLE. THE CONTACT DISCOVERED THAT THE SPARE TIRE DETACHED FROM UNDER THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE ASSEMBLY NEEDED T…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING AT APPROXIMATELY 15-20 MPH, THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE REAR OF THE VEHICLE. THE CONTACT DISCOVERED THAT THE SPARE TIRE DETACHED FROM UNDER THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE ASSEMBLY NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 160,000. UPDATED 2/24/15*CN UPDATED 9/11/2017*CN
NHTSA ODI #10668764
198,000 miles · Dec 12, 2014
Structure
FRAME BRAKING INTO OVER THE BACK TIRES MAJOR RUSTING HEATH HAZARD TO MY SELF PLUS OTHER'S SAME ISSUE AS TOYOTA RECALLED FRAME ISSUES. *TR
NHTSA ODI #10664032
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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