NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reports170,000 miles · Apr 7, 2011
Fuel System, GasolineService Brakes, Hydraulic
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS BEING SERVICE FOR ROUTINE MAINTENANCE, THE CONTACT WAS ADVISED BY THE MECHANIC THAT THE FRONT AND REAR BRAKE LINES AS WELL AS THE FUEL LINE WAS CORRODED. THE VEHICLE WAS NOT YET REPAIRED AS THE CONTACT WAS AWAITING THE ARRIVAL OF THE PARTS NEEDED FOR REP…
Read full complaint
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS BEING SERVICE FOR ROUTINE MAINTENANCE, THE CONTACT WAS ADVISED BY THE MECHANIC THAT THE FRONT AND REAR BRAKE LINES AS WELL AS THE FUEL LINE WAS CORRODED. THE VEHICLE WAS NOT YET REPAIRED AS THE CONTACT WAS AWAITING THE ARRIVAL OF THE PARTS NEEDED FOR REPAIRS. THE FAILURE MILEAGE WAS 170,000 AND THE CURRENT MILEAGE WAS 171,000.
NHTSA ODI #10395189
115,000 miles · Mar 31, 2011
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT NOTICED THAT WHEN TRAVELING AT LOWS SPEEDS THE ANTI-LOCK BRAKE SYSTEM WOULD ACTIVATE SUDDENLY, MAKING IT DIFFICULT TO IDLE THE VEHICLE. THE CONTACT DID NOT INFORM HIS LOCAL DEALER; HOWEVER, THE MANUFACTURER ADVISED THE CONTACT THAT DUE TO THE AGE AND MILEAGE, THERE…
Read full complaint
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT NOTICED THAT WHEN TRAVELING AT LOWS SPEEDS THE ANTI-LOCK BRAKE SYSTEM WOULD ACTIVATE SUDDENLY, MAKING IT DIFFICULT TO IDLE THE VEHICLE. THE CONTACT DID NOT INFORM HIS LOCAL DEALER; HOWEVER, THE MANUFACTURER ADVISED THE CONTACT THAT DUE TO THE AGE AND MILEAGE, THERE WAS NOTHING THAT THEY COULD DO. NO REPAIRS WERE PERFORMED. THE FAILURE MILEAGE WAS 115,000.
NHTSA ODI #10393895
129,000 miles · Mar 11, 2011
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING APPROXIMATELY 35 MPH, AND THE BRAKES WERE ENGAGED NUMEROUS TIMES BEFORE THE VEHICLE CAME TO A COMPLETE STOP. THE CONTACT INSPECTED THE VEHICLE AND DETECTED THAT THE BRAKE LINE FAILED DUE TO RUST CORROSION. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEA…
Read full complaint
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING APPROXIMATELY 35 MPH, AND THE BRAKES WERE ENGAGED NUMEROUS TIMES BEFORE THE VEHICLE CAME TO A COMPLETE STOP. THE CONTACT INSPECTED THE VEHICLE AND DETECTED THAT THE BRAKE LINE FAILED DUE TO RUST CORROSION. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 129,000.
NHTSA ODI #10389867
Mileage unknown · Feb 22, 2011
Power TrainService Brakes, Hydraulic
2000 CHEVY Z71 BRAKE LINES RUSTED HOLES IN LINE DDDKY. *TR
NHTSA ODI #10384076
75,000 miles · Feb 15, 2011
Service Brakes, Hydraulic
I LEFT WORK AND WHEN I PULLED UP TO THE TRAFFIC LIGHT MY BRAKES WENT ALL THE WAY TO THE FLOOR. HAD THE CAR TOWED TO THE DEALER AND HAD TO HAVE ALL THE BRAKE LINES REPLACED. DEALER SAID THEY WERE COMPLETELY RUSTED OUT. *TR
NHTSA ODI #10382834
60,000 miles · Feb 9, 2011
Power Train
I OWN A 2000 CHEVY SILVERADO. MY TRANSFER CASE IS STUCK IN 4WD ALL THE TIME WHICH HAS CAUSED DAMAGE TO MY FRONT DIFF ALSO. IF I CONTINUE TO DRIVE IT THE FRONT DIFF WILL LOCK UP. MY FATHER IN LAW OWNS THE SAME YEAR TRUCK WITH THE SAME PROBLEM. I HAVE ALSO TALKED TO SEVERAL OTHERS WITH THE SAME CONDITION. I WORK AS A AUTOMOTI…
Read full complaint
I OWN A 2000 CHEVY SILVERADO. MY TRANSFER CASE IS STUCK IN 4WD ALL THE TIME WHICH HAS CAUSED DAMAGE TO MY FRONT DIFF ALSO. IF I CONTINUE TO DRIVE IT THE FRONT DIFF WILL LOCK UP. MY FATHER IN LAW OWNS THE SAME YEAR TRUCK WITH THE SAME PROBLEM. I HAVE ALSO TALKED TO SEVERAL OTHERS WITH THE SAME CONDITION. I WORK AS A AUTOMOTIVE TECHNICIAN AND ALMOST EVERY TRANSFER CASE OF THIS GEN EXHIBITS THE SAME PROBLEM. I FEAR THAT IF THESE ARE NOT CORRECTED THEY WILL LOCK UP AND CAUSE SERIOUS INJURY. THE ONLY FIX I KNOW OF IS TO REPLACE THE DIFF AND TRANSFER CASE. I DRIVE MY TRUCK VERY NORMALLY. IT IS NOT ABUSED AND DOES VERY LITTLE OFF ROAD DRIVING. *TR
NHTSA ODI #10381315
130,000 miles · Feb 5, 2011
Service Brakes, Hydraulic
2000 CHEVY SILVERADO K1500 . APPROXIMATELY 12-5-2009 BRAKE LINE BURST WHILE I WAS EXITING MY STEEP DRIVEWAY. I LOST MY BRAKES AND NEARLY COLLIDED WITH ANOTHER VEHICLE. OVER $600 IN REPAIRS. I AM REPORTING THIS LATE BECAUSE I DID NOT REALIZE THIS HAS HAPPENED TO SEVERAL OTHER SILVERADO OWNERS. BRAKE LINES AS WELL AS ENTIRE UNDERC…
Read full complaint
2000 CHEVY SILVERADO K1500 . APPROXIMATELY 12-5-2009 BRAKE LINE BURST WHILE I WAS EXITING MY STEEP DRIVEWAY. I LOST MY BRAKES AND NEARLY COLLIDED WITH ANOTHER VEHICLE. OVER $600 IN REPAIRS. I AM REPORTING THIS LATE BECAUSE I DID NOT REALIZE THIS HAS HAPPENED TO SEVERAL OTHER SILVERADO OWNERS. BRAKE LINES AS WELL AS ENTIRE UNDERCARRIAGE ARE EXTREMELY RUSTED. I AM NOW IN PROCESS OF HAVING FRAME WELDED AND NEW ROCKER PANELS ATTACHED. I HAVE NOT SEEN RUST ON A VEHICLE SUCH AS THIS SINCE THE 1970'S. *TR
NHTSA ODI #10380841
31,800 miles · Feb 3, 2011
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500 4X4. THE CONTACT STATED THAT WHILE WAITING TO EXIT A RESIDENTIAL DRIVEWAY, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOOR BOARD. AFTER INSPECTING THE VEHICLE AND NOTICING AN ABNORMAL LEAK, HE FOUND THAT THE BRAKE LINE WAS CORRODED AND HAD FAILED. THE VEHICLE HAS NOT BEEN INSPECTED…
Read full complaint
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500 4X4. THE CONTACT STATED THAT WHILE WAITING TO EXIT A RESIDENTIAL DRIVEWAY, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOOR BOARD. AFTER INSPECTING THE VEHICLE AND NOTICING AN ABNORMAL LEAK, HE FOUND THAT THE BRAKE LINE WAS CORRODED AND HAD FAILED. THE VEHICLE HAS NOT BEEN INSPECTED BY A DEALER NOR REPAIRED. THE MANUFACTURER WAS CONTACTED AND REFERRED HIM TO A SERVICE MANAGER. THE FAILURE MILEAGE WAS APPROXIMATELY 31,800.
NHTSA ODI #10380104
85,000 miles · Jan 31, 2011
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ABS SYSTEM ENGAGED ON DRIVE SURFACES ON LOW SPEED STOPS; THE FAILURE MADE THE VEHICLE DIFFICULT TO STOP. THE CONTACT REFERENCED RECALL 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK) BUT WAS INFORMED BY THE MANUFACTURER THAT THE VEHICLE WAS NOT INCL…
Read full complaint
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ABS SYSTEM ENGAGED ON DRIVE SURFACES ON LOW SPEED STOPS; THE FAILURE MADE THE VEHICLE DIFFICULT TO STOP. THE CONTACT REFERENCED RECALL 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK) BUT WAS INFORMED BY THE MANUFACTURER THAT THE VEHICLE WAS NOT INCLUDED. THE FAILURE MILEAGE WAS 85,000.
NHTSA ODI #10379763
72,500 miles · Jan 26, 2011
Suspension
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE APPLYING THE BRAKES UNDER 10 MPH THE BRAKE PEDAL PULSATED, MAKING THE VEHICLE DIFFICULT TO STOP. THE CONTACT HAD NOT TAKEN THE VEHICLE TO THE DEALER OR CALLED THE MANUFACTURER. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED UNDER THE RECALL, S…
Read full complaint
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE APPLYING THE BRAKES UNDER 10 MPH THE BRAKE PEDAL PULSATED, MAKING THE VEHICLE DIFFICULT TO STOP. THE CONTACT HAD NOT TAKEN THE VEHICLE TO THE DEALER OR CALLED THE MANUFACTURER. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED UNDER THE RECALL, SERVICE BRAKES, HYDRAULIC:ANTILOCK ( 05V379000) BUT IT DID NOT REMEDY THE FAILURE. THE FAILURE MILEAGE WAS 72,500. UPDATED 03/10/11 *BF THE CONSUMER WANTS THE COMPLAINT DISREGARDED. THE PROBLEM WAS CAUSED BY A BEARING FAILURE AND NOT ABS FAILURE. UPDATED 05/23/11
NHTSA ODI #10378808
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.
Illustration