NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reports105,800 miles · Jun 15, 2012
Service Brakes, Hydraulic
DEPRESSED BRAKE PEDAL TO SHIFT OUT OF PARK,PEDAL WENT TO FLOOR. NO BRAKES.AAA TOWED TO DEALER. BRAKE LINES RUSTED OUT. LUCKY THIS WAS NOT AN EMERGENCY STOP!! GM NO HELP. $1451.00 LATER TRUCK REPAIRED. DRIVING GM PRODUCTS SINCE 1972 HAVE NEVER HAD THE CORRISON PROBLEMS THAT I HAVE HAD WITH THIS TRUCK.ROTORS BRAKES BRAKE LINES. …
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DEPRESSED BRAKE PEDAL TO SHIFT OUT OF PARK,PEDAL WENT TO FLOOR. NO BRAKES.AAA TOWED TO DEALER. BRAKE LINES RUSTED OUT. LUCKY THIS WAS NOT AN EMERGENCY STOP!! GM NO HELP. $1451.00 LATER TRUCK REPAIRED. DRIVING GM PRODUCTS SINCE 1972 HAVE NEVER HAD THE CORRISON PROBLEMS THAT I HAVE HAD WITH THIS TRUCK.ROTORS BRAKES BRAKE LINES. *JB
NHTSA ODI #10461883
106,000 miles · Jun 12, 2012
Service Brakes
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHENEVER HE DEPRESSED THE BRAKE PEDAL TO STOP THE VEHICLE AT LOW SPEEDS, THE VEHICLE WOULD NOT RESPOND. THE VEHICLE WAS TAKEN TO THE DEALER WHO CLEANED THE WHEEL SPEED SENSOR BUT THE FAILURE PERSISTED. THE MANUFACTURER WAS NOTIFIED WHO STATED THERE WAS…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHENEVER HE DEPRESSED THE BRAKE PEDAL TO STOP THE VEHICLE AT LOW SPEEDS, THE VEHICLE WOULD NOT RESPOND. THE VEHICLE WAS TAKEN TO THE DEALER WHO CLEANED THE WHEEL SPEED SENSOR BUT THE FAILURE PERSISTED. THE MANUFACTURER WAS NOTIFIED WHO STATED THERE WAS AN OPEN RECALL ON THE VEHICLE UNDER NHTSA CAMPAIGN ID NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK). THE VEHICLE WAS REPAIRED UNDER THE RECALL BUT THE FAILURE RECURRED. THE MANUFACTURER INFORMED THE CONTACT THEY WOULD NOT REPAIR THE VEHICLE A SECOND TIME. THE VEHICLE WAS NOT FURTHER REPAIRED. THE FAILURE MILEAGE WAS 106,000.
NHTSA ODI #10461359
104,000 miles · Jun 5, 2012
Service BrakesCrash
MY WIFE WAS DRIVING TO WORK WHEN SHE WENT TO APPLY THE BRAKES ON OUR 2000 CHEVY PICKUP WHEN THE BRAKE LINE ON THE TRUCK RUPTURED AND SHE COULD NOT STOP THE VEHICLE. SHE THEN REARENDED THE JEEP IN FRONT OF HER CAUSING DAMAGE TO BOTH VEHICLES. WE THEN HAD THE TRUCK TOWED TO ARE RESIDENTS WERE I LOOKED UNDER THE TRUCK TO FIND THE L…
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MY WIFE WAS DRIVING TO WORK WHEN SHE WENT TO APPLY THE BRAKES ON OUR 2000 CHEVY PICKUP WHEN THE BRAKE LINE ON THE TRUCK RUPTURED AND SHE COULD NOT STOP THE VEHICLE. SHE THEN REARENDED THE JEEP IN FRONT OF HER CAUSING DAMAGE TO BOTH VEHICLES. WE THEN HAD THE TRUCK TOWED TO ARE RESIDENTS WERE I LOOKED UNDER THE TRUCK TO FIND THE LEAK AND HOW BADLY THE TRUCK HAD RUSTED LINES AND THE UNDER CARRIAGE OF THE TRUCK. I FEEL THIS A LIVE AND DEATH PROBLEM TO ANY 1 DRIVING THESE VEHICLES AND IF MY WIFE HAD NOT TAKEN EVASIVE ACTION THERE MAY HAVE BEEN A DEATH INVOLVED. CHEVY SHOULD BE HELD ACCOUNTABLE FOR THIS PROBLEM SINCE I HAVE SEEN MANY PEOPLE ON LINE HAVE HAD THE SAME TROUBLES WITH THESE RUSTED LINES RUPTURING. *TR
NHTSA ODI #10460668
66,453 miles · Apr 30, 2012
Service Brakes
I FILED A COMPLAINT WITH YOU IN APPROXIMATELY 2008/09. AT 20 MPH THERE ARE ALMOST NO BRAKES (NOT ABS BRAKES, NO BRAKES). I PULLED THE FUSE FOR THE ANTI-LOCK SYSTEM AND THE PROBLEM ENDED. I HEARD NOTHING BACK FROM YOU. FRIENDS WHO DROVE MY TRUCK COMPLAINED OF EXCESSIVELY SOFT BRAKES SINCE IT WAS NEW. I WAS CHECKING YOUR WEBSIT…
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I FILED A COMPLAINT WITH YOU IN APPROXIMATELY 2008/09. AT 20 MPH THERE ARE ALMOST NO BRAKES (NOT ABS BRAKES, NO BRAKES). I PULLED THE FUSE FOR THE ANTI-LOCK SYSTEM AND THE PROBLEM ENDED. I HEARD NOTHING BACK FROM YOU. FRIENDS WHO DROVE MY TRUCK COMPLAINED OF EXCESSIVELY SOFT BRAKES SINCE IT WAS NEW. I WAS CHECKING YOUR WEBSITE 3 DAYS AGO WHEN I CAME ACROSS RECALL #GM05068, NHTSA 05V379000. I CALLED MY LOCAL DEALER TO INQUIRE ABOUT RECALL REPAIRS. THEY INFORMED ME THAT THE RECALL HAD BEEN DONE ON MY VEHICLE ON 02-17-06. THEY SAID THEY ARE ONLY AUTHORIZED TO DO THE RECALL REPAIRS ONCE. I ASSUME THIS WAS DONE WHEN I HAD THE VEHICLE IN FOR OTHER ISSUES, AS I HAD NO BRAKE PROBLEMS AT THE TIME. SO APPROXIMATELY 2 YRS AFTER THE RECALL SERVICE WAS DONE THE PROBLEM PRESENTED ITSELF. I CALLED GM TODAY (REF # 71-106-286-2771) THEY SAID THEY CAN'T DO ANYTHING ON THE RECALL BUT IT IS "POSSIBLE" THEY MAY BE ABLE TO GIVE SOME ASSISTANCE UNDER ANOTHER PROGRAM IF I TAKE IT TO THE DEALER AND PAY FOR A DIAGNOSIS "OF A MANUFACTURER'S DEFECT". I WAS ALREADY TOLD BY THE DEALER THAT THE FIX WOULD COST BETWEEN $200-350.00, AND DIAGNOSIS IS LIKELY TO ADD ANOTHER 100.00, WITH NO ASSURANCE OF ANY REIMBURSEMENT. MY PROBLEM IS THREE FOLD: THE ORIGINAL FIX DID NOT ELIMINATE THE PROBLEM, THE PROBLEM IS A DESIGN WHICH DIRECTLY IMPACTS SAFETY AND APPEARS TO RE-OCCUR RANDOMLY EVERY COUPLE OF YEARS, A REAL FIX MUST HAVE BEEN ACHIEVED SINCE TRUCKS AFTER 2002 ARE NOT SIMILARLY AFFECTED. FOR MY WIFE'S SAFETY I HAVE CHOSEN TO PULL THE FUSE AND DISABLE THE ABS SYSTEM, RETURNING THE VEHICLE TO PRE-ABS STATUS, AND THE BRAKES WORK FINE. THE CALIPERS AND ROTORS HAVE BEEN REGULARLY MAINTAINED. SHOULDN'T AN ABS SYSTEM TO BE DESIGNED TO FAIL BACK TO REGULAR BRAKES RATHER THAN ALMOST NO BRAKES? QUESTIONS: SHOULD THE PROBLEM STILL BE COVERED BY THE RECALL? WHAT REDESIGN WAS MADE TO ELIMINATE THE PROBLEM? *JS
NHTSA ODI #10456943
150,000 miles · Apr 23, 2012
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING 60 MPH WHEN THE BRAKE PEDAL BECAME STUCK TO THE FLOORBOARD. THE CONTACT PUMPED THE BRAKES SEVERAL TIMES BEFORE IT INDEPENDENTLY RELEASED. THE VEHICLE WAS NOT TAKEN TO THE DEALER NOR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VIN …
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING 60 MPH WHEN THE BRAKE PEDAL BECAME STUCK TO THE FLOORBOARD. THE CONTACT PUMPED THE BRAKES SEVERAL TIMES BEFORE IT INDEPENDENTLY RELEASED. THE VEHICLE WAS NOT TAKEN TO THE DEALER NOR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE AND THE CURRENT MILEAGE WAS 150,000.
NHTSA ODI #10456116
60,000 miles · Apr 22, 2012
Service Brakes, Hydraulic
07/06/2008 - LEAVING A PARKING LOT. ATTEMPTED TO STOP. BRAKE PEDAL WENT TO FLOOR. BRAKE LINES CRACKED DUE TO RUST. BRAKE FLUID WAS COVERING GROUND UNDER TRUCK. THREE OUT OF FOUR MAIN LINES WERE REPLACED. 04/22/2012 - MILEAGE-98,600 - LEAVING MY DRIVEWAY AND DEPRESSED BRAKE PEDAL. BRAKE PEDAL WENT TO FLOOR. RIGHT FRONT…
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07/06/2008 - LEAVING A PARKING LOT. ATTEMPTED TO STOP. BRAKE PEDAL WENT TO FLOOR. BRAKE LINES CRACKED DUE TO RUST. BRAKE FLUID WAS COVERING GROUND UNDER TRUCK. THREE OUT OF FOUR MAIN LINES WERE REPLACED. 04/22/2012 - MILEAGE-98,600 - LEAVING MY DRIVEWAY AND DEPRESSED BRAKE PEDAL. BRAKE PEDAL WENT TO FLOOR. RIGHT FRONT BRAKE LINE HAD HOLES DUE TO RUST. THIS LINE WAS A SEPARATE LINE FROM THE OTHER THREE OUT OF FOUR LINES THAT WERE REPLACED. *TR
NHTSA ODI #10456065
53,387 miles · Apr 15, 2012
Service Brakes, Hydraulic
APPLYING BRAKES FOR SLOW TRAFFIC THE PEDAL WENT TO THE FLOOR. RAN OFF THE ROAD TO AVOID HITTING VEHICLE IN FRONT. NOTED FAILURE OF REAR BRAKE STEEL LINE WHICH WAS HEAVILY RUSTED. NO WARNINGS PRIOR TO BRAKE FAILURE. *TR
NHTSA ODI #10455293
Mileage unknown · Apr 4, 2012
Service Brakes, HydraulicStructure
THE REAR BRAKE LINES STARTED TO RUST OUT ON 2005 CAUSING THE BRAKES TO FAIL, IN 2009 ALL OF THE BRAKE LINES RUSTED OUT CAUSING BRAKE FAILURE, NO ACCIDENT. I REPLACED AT THE BRAKE LINES MYSELF. *TR THE REAR FRAME RAILS ARE RUSTING AND HOLES HAVE DEVELOPED IN THE FRAME.
NHTSA ODI #10454171
112,047 miles · Mar 25, 2012
Service Brakes, Hydraulic
1. 8/27/2008 BRAKES FAILED DURING SUDDEN STOP WHILE TOWING TRAILER. ACCIDENT NARROWLY AVOIDED. FAULT: BURST BRAKE LINE. HAD BAD LINE REPLACED. 2. 3/5/2012 BRAKES FAILED. FAULT: BURST BRAKE LINE. HAD ALL LINES REPLACED. *TR
NHTSA ODI #10452897
70,000 miles · Mar 20, 2012
Service Brakes, Hydraulic
APPLIED THE BRAKES AT A TRAFFIC LIGHT AND THE PEDAL HIT THE FLOOR. ON INSPECTION I COULD SEE FLUID LEAKING FROM THE BRAKE LINE. TOOK IT TO THE CHEVY DEALER WHO TELLS ME ALL OF THE BRAKE LINES NEED TO BE REPLACED DUE TO RUST, AS WELL AS THE ABS AND CALIPER. I HAD THE ABS SENSORS REPLACED 2-3 YEARS AGO DUE TO RUST, AT A SERVICE…
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APPLIED THE BRAKES AT A TRAFFIC LIGHT AND THE PEDAL HIT THE FLOOR. ON INSPECTION I COULD SEE FLUID LEAKING FROM THE BRAKE LINE. TOOK IT TO THE CHEVY DEALER WHO TELLS ME ALL OF THE BRAKE LINES NEED TO BE REPLACED DUE TO RUST, AS WELL AS THE ABS AND CALIPER. I HAD THE ABS SENSORS REPLACED 2-3 YEARS AGO DUE TO RUST, AT A SERVICE CENTER NOT AT THE DEALER, AND NOW THE REPLACEMENT ONES ARE BAD. SO I'M THINKING GM IS USING SUBSTANDARD PARTS AND REPLACEMENT PARTS ARE EVEN MORE SUBSTANDARD. THE ABS SENSORS WERE ALREADY UNDER RECALL, I HAVING NOT UNDERSTOOD HOW RECALLS WORKED TOOK THE TRUCK IN FOR THE REPAIRS AFTER RECEIVING NOTICE OF A RECALL, BEFORE EXPERIENCING PROBLEMS. SO WHEN I DID HAVE PROBLEMS THE RECALL REPAIRS WERE ALREADY EXHAUSTED; I INQUIRED WHAT THE DEALER DID WHEN I TOOK IT TO THEM FOR RECALL; THE DEALER TOLD ME THE CLEANED THE ABS SENSORS TO SATISFY THE RECALL ORDER. SO 2-3 YEARS AGO I HAD THEM REPLACED WHEN THEY DID RUST AND FAIL, NOW THEY ARE ACTING UP AGAIN AND NEED TO BE REPLACED. SO NOW THEY WANT $3,200 TO REPLACE BRAKE LINES, CALIPER AND ABS. *KB
NHTSA ODI #10452343
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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