NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reports114,000 miles · Mar 2, 2015
Service Brakes
DRIVING ON THE FREEWAY GOING 60 MPH, THE CAR AHEAD OF US MADE A SUDDEN, DRASTIC SLOW DOWN. AS WE PRESSED THE BRAKES, THEY WENT TO THE FLOOR AND WE CONTINUED TO KEEP MOVING FORWARD AND STOPPED INCHES BEFORE HITTING THE CAR AHEAD OF US. THANKFULLY WE HAD AT LEAST 5 CAR LENGTHS BETWEEN US. HAD BREAK LINE REPAIRED. MECHANIC SAID I…
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DRIVING ON THE FREEWAY GOING 60 MPH, THE CAR AHEAD OF US MADE A SUDDEN, DRASTIC SLOW DOWN. AS WE PRESSED THE BRAKES, THEY WENT TO THE FLOOR AND WE CONTINUED TO KEEP MOVING FORWARD AND STOPPED INCHES BEFORE HITTING THE CAR AHEAD OF US. THANKFULLY WE HAD AT LEAST 5 CAR LENGTHS BETWEEN US. HAD BREAK LINE REPAIRED. MECHANIC SAID IT HAD RUSTED THROUGH. FEBRUARY 28, 2015 PULLING INTO A PARKING LOT WITH CARS AHEAD OF US, MOVING 4-5 MPH. CAR IN FRONT OF US SUDDENLY STOPS, WE GO TO BRAKE AND HEARD A NOISE, BRAKES WENT TO THE FLOOR AND WE HIT THE CAR IN FRONT OF US.( WE WERE A 1/2 CAR LENGTH BEHIND THE CAR.) DUE TO MOVING AT A SLOW SPEED, THERE WAS NO DAMAGE OTHER THAN THE OCCUPANTS OF BOTH CARS BEING JERKED. TOOK TO A MECHANIC AND ABS SENSORS WERE RUSTED OUT AS WELL AS THE HUBS ETC... HE THEN TOLD US HE CANNOT BELIEVE THE AMOUNT OF RUST AND CORROSION WE HAVE ON THE ENTIRE UNDERSIDE. HE STATED IT LOOKED LIKE A 50 YEAR OLD VEHICLE THAT SAT IN A FIELD FOR YEARS. HE ADVISED US TO GET THE REST OF THE BRAKE LINES REPLACED AS WELL AS WATCH THE FRAMING ETC.. FOR CRACKING. WE DO NOT FEEL SAFE ANYMORE! THIS TRUCK HAS BEEN THOROUGHLY CARED FOR AND KEPT WASHED EVEN DURING WINTERS. *TR
NHTSA ODI #10691660
17,898 miles · Feb 11, 2015
Service Brakes
I WAS DOWN MOUNT PLACE ROAD GOING TO WORK 5:00 AM IN THE MORNING I BRAKE FOR A DEAR AN SLOW DOWN THEN ON BRAKE PADDLE HIT THE FLOOR AN MY PICK UP WAS HARD TO STOP HAD TO TAKE IT BACK HOME AN I HAVE BRAKE FLUID ON GROUND A BRAKE LINE BURST. *TR
NHTSA ODI #10682853
190,000 miles · Feb 9, 2015
Service Brakes
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS APPROACHING A STOP AT THE TOP OF A HILL, THE BRAKE LINE RUPTURED AND CAUSED THE VEHICLE TO ROLL BACKWARDS DOWN THE HILL. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 190,000.
NHTSA ODI #10682086
140,000 miles · Feb 5, 2015
Power TrainSeatsService BrakesInjury
THE TRANSMISSION IN THIS VEHICLE IS A TOTAL PIECE OF JUNK. THERE ARE MANY, MANY VEHICLES WITH THIS SAME TRANSMISSION. IT LOCKED UP SLINGING THE DRIVER INTO THE STEERING WHEEL AND WINDSHIELD. THIS BROKE THE BOLTS HOLDING THE SEAT TO THE FRAME. THE COST TO FIX WAS OVER 1200 DOLLARS. I'VE TALKED WITH SEVERAL TRANSMISSION SHOPS, EAC…
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THE TRANSMISSION IN THIS VEHICLE IS A TOTAL PIECE OF JUNK. THERE ARE MANY, MANY VEHICLES WITH THIS SAME TRANSMISSION. IT LOCKED UP SLINGING THE DRIVER INTO THE STEERING WHEEL AND WINDSHIELD. THIS BROKE THE BOLTS HOLDING THE SEAT TO THE FRAME. THE COST TO FIX WAS OVER 1200 DOLLARS. I'VE TALKED WITH SEVERAL TRANSMISSION SHOPS, EACH ONE IS IN BUSINESS DUE TO THE FACT THAT THIS TRANSMISSION IS DEFECTIVE. THEY REPAIR OR REPLACE MORE OF THESE THAN ALL OTHER TIMES 400. IT APPEARS THAT THIS PROBLEM HAS BEEN A PROBLEM SINCE FIRST BEING USED. IT ALSO APPEARS THAT NO ONE IS BEING HELD ACCOUNTABLE FOR THE REPAIRS AND/OR DEATHS, INJURY THAT IS BEING CAUSED BY THIS DEFECTIVE UNIT. IT'S OINDTALLED IN MILLIONS OF VEHICLES WORLDWIDE. WHEN IS SOMETHING GOING TO BE DONE ? WHEN IS SOMEONE GOING TO BE HELD ACCOUNTABLE ? STOP THIS MADNESS, PLEASE ! THE TIME IT'S TOOK ME TO FILL OUT THE FORM, DOZENS OF PEOPLE WERE INJURED DUE TO THE ABOVE STATEMENT. *TR
NHTSA ODI #10681560
160,000 miles · Jan 19, 2015
Service BrakesWheels
PULLING INTO DRIVEWAY ABS MOTOR BEGAN RUNNING AND NO BRAKING HAD TO RAM INTO PARK TO KEEP FROM HITTING GARAGE. *TR
NHTSA ODI #10676496
62,800 miles · Jan 4, 2015
Service Brakes
I WAS LEAVING A BANK PARKING LOT AND WENT TO STOP BEFORE TURNING ONTO THE HIGHWAY. WHEN I APPLIED THE BRAKES, THE PEDAL WENT TO THE FLOOR. LUCKILY, I WAS ON A SLIGHT INCLINE AND WAS ABLE TO STOP THE VEHICLE. THERE WAS A PUDDLE OF BRAKE FLUID UNDER THE FRONT OF THE TRUCK, WHICH WAS COMING FROM A CORRODED LINE BETWEEN THE MAS…
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I WAS LEAVING A BANK PARKING LOT AND WENT TO STOP BEFORE TURNING ONTO THE HIGHWAY. WHEN I APPLIED THE BRAKES, THE PEDAL WENT TO THE FLOOR. LUCKILY, I WAS ON A SLIGHT INCLINE AND WAS ABLE TO STOP THE VEHICLE. THERE WAS A PUDDLE OF BRAKE FLUID UNDER THE FRONT OF THE TRUCK, WHICH WAS COMING FROM A CORRODED LINE BETWEEN THE MASTER CYLINDER AND ABS MODULE. I HAD THE TRUCK TOWED TO MY LOCAL SHOP AND THEY REPLACED TWO BRAKE LINES BETWEEN THE MASTER CYLINDER AND ABS. FAST FORWARD TO APRIL 22, 2012 AND AROUND 37K MILES LATER. I WAS BACKING OUT OF MY DRIVEWAY AND WENT TO STOP. PEDAL WENT TO THE FLOOR, BRAKE FLUID ON THE GROUND. THE BRAKE LINE GOING TO THE RIGHT FRONT WHEEL HAD RUSTED THROUGH ENOUGH THAT IT COULD NOT HOLD THE PRESSURE. THIS LINE I REPLACED MYSELF. AND FINALLY, TODAY, JANUARY 4, 2015, SAME THING. I START MY TRUCK, LET IT RUN FOR A FEW MINUTES. APPLY THE BRAKE TO SHIFT INTO REVERSE, PEDAL GOES DOWN TO THE FLOOR, BRAKE FLUID ON THE GROUND. THIS TIME IT'S THE BRAKE LINE FOR THE REAR BRAKES THAT HAS RUSTED OUT. I AM GOING TO HAVE THIS LINE AND ANY OTHER LINES THAT HAVE NOT BEEN PREVIOUSLY REPAIRED, REPLACED AT MY LOCAL SHOP OR DEALER. THIS IS AN ISSUE THAT GM NEEDS TO TAKE CARE OF! I WAS GOING SLOW WITH EACH OF THESE INCIDENTS, BUT WHAT IF I WAS DOING 70 MPH DOWN THE INTERSTATE AND HAD TO STOP OR SLOW DOWN VERY SUDDENLY AND MY BRAKES FAILED? SOMEONE AND/OR MYSELF COULD HAVE BEEN SERIOUSLY INJURED OR KILLED. MAYBE THAT'S WHAT IT WILL TAKE...FIX IT GM BEFORE SOMEONE GETS HURT! *TR
NHTSA ODI #10669961
50,000 miles · Dec 30, 2014
Electrical SystemEngine
MY CAR HAS ONLY 50,400 MILES-ITS A 2009, YESTERDAY WHILE DRIVING I FELT A JOLTING IN THE REAR END OF THE TRUCK AND IT CONTINUED EACH TIME I STOPPED AND STARTED DRIVING AGAIN. I TOOK IT TO MY MECHANIC WHO INFORMED ME IT WAS A TRANSMISSION SHIFTING PROBLEM. I WENT ON LINE AND DISCOVERED THAT THIS ISSUE HAS BEEN RELATED TO OTHER SI…
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MY CAR HAS ONLY 50,400 MILES-ITS A 2009, YESTERDAY WHILE DRIVING I FELT A JOLTING IN THE REAR END OF THE TRUCK AND IT CONTINUED EACH TIME I STOPPED AND STARTED DRIVING AGAIN. I TOOK IT TO MY MECHANIC WHO INFORMED ME IT WAS A TRANSMISSION SHIFTING PROBLEM. I WENT ON LINE AND DISCOVERED THAT THIS ISSUE HAS BEEN RELATED TO OTHER SILVERADO TRUCKS AS A RECALL DUE TO A SHIFT CABLE ADJUSTER PROBLEM WHICH CAN LEAD TO A ROLL AWAY. *JS
NHTSA ODI #10669203
70,000 miles · Dec 29, 2014
Service Brakes
ABS BRAKES COME ON AT SLOW SPEEDS ON DRY PAVEMENT. *TR
NHTSA ODI #10668896
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
137,000 miles · Dec 29, 2014
Service Brakes
WHILE COMING UP TO AN INTERSECTION MY BRAKE PEDAL SUDDENLY WENT NEARLY TO THE FLOOR. FORTUNATELY THERE WAS NO ONE AHEAD OF ME , NOR WAS THERE ANY CROSS TRAFFIC.. I SOON FOUND OUT THAT MY FRONT BRAKE LINE HAD RUSTED COMPLETELY THROUGH AND HAD LOST ALL BRAKE FLUID TO THE FRONT BRAKES. ALL BRAKE LINES HAD TO BE REPLACED. *TR
NHTSA ODI #10668657
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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