NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
509 reports80,000 miles · Oct 10, 2012
Service Brakes
BRAKES FAILED DUE TO BURST LINE TO REAR AXLE; LITTLE OR NO STOPPING POWER FROM FRONT BRAKES; EMERGENCY BRAKE WORKED FOR A FEW MINUTES BUT NO LONGER AFTER COUPLE OF MILES TO MY DRIVEWAY. DISASSEMBLY REVEALED E-BRAKE PADS HAD CRUMBLED AWAY INSIDE REAR ROTORS; AND ALL 5 BRAKE LINES COMING OUT OF ABS UNIT WILL NEED TO BE REPLACED, N…
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BRAKES FAILED DUE TO BURST LINE TO REAR AXLE; LITTLE OR NO STOPPING POWER FROM FRONT BRAKES; EMERGENCY BRAKE WORKED FOR A FEW MINUTES BUT NO LONGER AFTER COUPLE OF MILES TO MY DRIVEWAY. DISASSEMBLY REVEALED E-BRAKE PADS HAD CRUMBLED AWAY INSIDE REAR ROTORS; AND ALL 5 BRAKE LINES COMING OUT OF ABS UNIT WILL NEED TO BE REPLACED, NOT JUST REAR. FYI I HAVE OWNED IN EXCESS OF 20 G.M. TRUCKS, BUT NONE EVER AS BAD AS THIS ON BRAKE LINES. DAUGHTER IN TRUCK WITH ME- THIS COULD HAVE TURNED OUT VERY BADLY. TRUCK UNUSABLE UNTIL ALL LINES ARE FIXED- VERY DIFFICULT DUE TO POSITIONING OF LINES ( I HAVE DONE MANY BRAKE LINES- ON MUCH OLDER TRUCKS). THANKS... *TR
NHTSA ODI #10479525
Mileage unknown · Oct 3, 2012
Service Brakes
I TOOK MY 2002 CHEVY SILVERADO 1500 IN TO GET INSPECTED. IT FAILED DUE TO NO PARKING/EMERGENCY BRAKES. I HAVE NEVER USED MY PARKING BRAKE, NEVER BEEN IN THE WHERE IT WAS NEEDED. I FIRST NOTICED AFTER REMOVING WHEEL THAT EVERYTHING IS RUSTED BEYOND WHAT I THINK IT SHOULD BE AT THIS POINT, THE SPLASH SHIELDS ARE ALMOST COMPLETEL…
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I TOOK MY 2002 CHEVY SILVERADO 1500 IN TO GET INSPECTED. IT FAILED DUE TO NO PARKING/EMERGENCY BRAKES. I HAVE NEVER USED MY PARKING BRAKE, NEVER BEEN IN THE WHERE IT WAS NEEDED. I FIRST NOTICED AFTER REMOVING WHEEL THAT EVERYTHING IS RUSTED BEYOND WHAT I THINK IT SHOULD BE AT THIS POINT, THE SPLASH SHIELDS ARE ALMOST COMPLETELY GONE. I REMOVED THE DRUM AND BRAKE SHOES AND NOTICED THAT ON BOTH SETS OF SHOES, LEFT AND RIGHT, THE PADS OF THE SHOES WERE NOT REALLY WORN, BUT THE ACTUAL LINING THAT THE SHOES ARE ATTACHED TO WERE WORN AT THE VERY BOTTOM ON THE DRIVERS SIDE AND THE VERY TOP ON THE PASSENGER SIDE, BOTH WHERE THERE ARE NO PADS. I FOLLOWED THE DIRECTIONS THAT CAME WITH THE NEW SHOES, REPLACED EVERYTHING, AND STILL NO BRAKES. I THEN BOUGHT A NEW CABLE AND SWAPPED IT OUT, THINKING THE CABLE MAY BE STRETCHED. STILL NO BRAKES. I REMOVED THE WHEEL AND DRUM ONCE AGAIN AND HAD SOMEONE DEPRESS THE PARKING BRAKE. I NOTICED THE ACTUATOR WORKING, SO I REASSEMBLED EVERYTHING, AND STILL NO BRAKES. I THEN CONTACTED GM CUSTOMER SERVICE TO SEE IF THERE WERE ANY RECALLS FOR THIS PROBLEM, I WAS TOLD THAT THERE WAS NOT. I WAS TOLD THAT I CAN TAKE MY TRUCK TO A CERTIFIED CHEVY DEALER FOR THEM TO DIAGNOSE THE PROBLEM, AT MY EXPENSE, BEING THAT I HAVEN'T BEEN ABLE TO FIND GAINFUL EMPLOYMENT IN OVER 3 1/2 YEARS, I CAN NOT AFFORD THIS. I WAS TOLD THERE IS NOTHING FURTHER THAT CAN BE DONE TO HELP ME. I HAVE LESS THAN 2 WEEKS FOR MY TRUCK TO PASS INSPECTION, IF NOT, THEN I MUST PAY FINES AND COSTS WHEN I DO REREGISTER MY VEHICLE. HOW DO I GET MY VEHICLE TO PASS INSPECTION WHEN THERE IS OBVIOUSLY A DEFECT IN THEIR DESIGN. I'M HITTING A BRICK WALL EVERYWHERE I TURN. WITH ALL THE COMPLAINTS AND PROBLEMS THAT I SEE BEING POSTED ONLINE, HOW COULD THERE NOT BE A RECALL. WHAT HAS TO HAPPEN FOR THEM TO TAKE RESPONSIBILITY FOR THIS PROBLEM. *TR
NHTSA ODI #10478555
85,000 miles · Sep 21, 2012
Engine And Engine CoolingFuel System, GasolineStructure
THE PART OF THE FRAME THAT HOLDS UP THE GAS TANK AND CONNECTS TO THE SHOCK HAS ROTTED AWAY. I HAD TO REPLACE BOTH REAR LEAF SPRING SHACKLES DO TO RUST AS WELL AS THE LEFT REAR BRAKE LINE. THE REAR OF THE TRUCK IS RUSTING AWAY. I HAVE HAD TO REPLACE THE FUEL PUMP, THERE IS A KNOCK IN THE STEERING COLUMN THAT I HAVE HAD FIXED ONCE…
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THE PART OF THE FRAME THAT HOLDS UP THE GAS TANK AND CONNECTS TO THE SHOCK HAS ROTTED AWAY. I HAD TO REPLACE BOTH REAR LEAF SPRING SHACKLES DO TO RUST AS WELL AS THE LEFT REAR BRAKE LINE. THE REAR OF THE TRUCK IS RUSTING AWAY. I HAVE HAD TO REPLACE THE FUEL PUMP, THERE IS A KNOCK IN THE STEERING COLUMN THAT I HAVE HAD FIXED ONCE ALREADY, THE ENGINE HAS TICKING SOUND WHEN IDLING, AND THE A/C COMPRESSOR IS BROKEN. *TR
NHTSA ODI #10476723
116,000 miles · Sep 17, 2012
Service Brakes
STEEL BRAKE LINE RUSTED THROUGH AT REAR OF TRUCK NEAR DRIVER SIDE WHEEL WELL. ALL OTHER STEEL BRAKE AND FUEL LINES IN TRUCK HEAVILY RUSTED AND ALSO NEAR BLOW OUT POINT. *TR WHEN REAR LINE FAILED, BRAKE PEDAL WENT TO THE FLOOR AND STOPPING DISTANCE DOUBLED. I WAS PULLING A 3,000LBS BOAT AT THE TIME. THE BRAKE WARNING LAMP …
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STEEL BRAKE LINE RUSTED THROUGH AT REAR OF TRUCK NEAR DRIVER SIDE WHEEL WELL. ALL OTHER STEEL BRAKE AND FUEL LINES IN TRUCK HEAVILY RUSTED AND ALSO NEAR BLOW OUT POINT. *TR WHEN REAR LINE FAILED, BRAKE PEDAL WENT TO THE FLOOR AND STOPPING DISTANCE DOUBLED. I WAS PULLING A 3,000LBS BOAT AT THE TIME. THE BRAKE WARNING LAMP DID NOT ILLUMINATE. BRAKE WARNING LAMP CAME ON ONLY AFTER APPROX 10 MILES OF NO REAR BRAKE AVAILABILITY. I AM CURRENTLY TAKING PREVENTIVE MEASURES AND REPLACING ALL STEEL LINES IN TRUCK. OLD LINES AVAILABLE FOR INSPECTION IF YOU ACT QUICKLY.
NHTSA ODI #10475678
121,000 miles · Sep 16, 2012
Service BrakesStructureSuspension
MOST RECENT(9/15/12),BRAKE LINE RUPTURES DO TO TONS OF RUST... . BODY MOUNTS TOTALLY RUSTED OFF , REAR BRAKE ROTOR DUST SHIELDS RUSTED OFF, LEAF SPRING SHACKLES RUSTED THRU AND FELL OFF..REAR BUMPER RUSTED THRU,TOTAL UNDER CARRIAGE RUSTED THRU, RAILSUNDER DOORS TOTALLY RUSTED THRU AND HAVE BIG HOLES IN THEM.. *TR *JS
NHTSA ODI #10475524
183,742 miles · Sep 14, 2012
Service Brakes
THE BRAKE LINES ON THE TRUCK, WHICH IS APPROXIMATELY 10 YEARS OLD ARE COMPLETELY CORRODED. I HAPPENED TO BE PULLING INTO A SERVICE STATION WHEN THE DRIVER SIDE FRONT LINE COMPLETELY BLEW OUT, SPRAYING BRAKE FLUID EVERYWHERE. I WAS LUCKY. THE BRAKES ARE COMPLETELY NONFUNCTIONAL. I COULD HAVE BEEN KILLED OR KILLED SOMEONE ELSE…
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THE BRAKE LINES ON THE TRUCK, WHICH IS APPROXIMATELY 10 YEARS OLD ARE COMPLETELY CORRODED. I HAPPENED TO BE PULLING INTO A SERVICE STATION WHEN THE DRIVER SIDE FRONT LINE COMPLETELY BLEW OUT, SPRAYING BRAKE FLUID EVERYWHERE. I WAS LUCKY. THE BRAKES ARE COMPLETELY NONFUNCTIONAL. I COULD HAVE BEEN KILLED OR KILLED SOMEONE ELSE IF I HAD BEEN ANYWHERE ELSE WHEN THIS HAPPENED. *TR
NHTSA ODI #10475421
151,000 miles · Sep 4, 2012
Service Brakes
I HAD APPLIED THE BRAKES TO STOP, AND THE ABS WAS GOING ON AND OFF AND I ENDED UP GOING THRU THE INTERSECTION, LUCKILY NO ONE ELSE WAS IN THE INTERSECTION, I FOUND OUT THERE WAS A RECALL ON IT IN 2005 AND THE WORK WAS DONE ON 1/23/2007, I CALLED CHEVROLET TO FIND OUT THAT THE RECALL WAS DONE THEY "CLEANED" IT AND HEY LOOK 5 YEAR…
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I HAD APPLIED THE BRAKES TO STOP, AND THE ABS WAS GOING ON AND OFF AND I ENDED UP GOING THRU THE INTERSECTION, LUCKILY NO ONE ELSE WAS IN THE INTERSECTION, I FOUND OUT THERE WAS A RECALL ON IT IN 2005 AND THE WORK WAS DONE ON 1/23/2007, I CALLED CHEVROLET TO FIND OUT THAT THE RECALL WAS DONE THEY "CLEANED" IT AND HEY LOOK 5 YEARS LATER IT DOES THE SAME THING AND GM WONT DO ANYTHING ABOUT IT. LOOKS LIKE CLEANING REALLY DIDN'T DO THE JOB. *TR
NHTSA ODI #10473762
65,000 miles · Aug 31, 2012
Vehicle Speed Control
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHEN HE ENGAGED THE ACCELERATOR PEDAL THE VEHICLE LUNGED FORWARD AND THE BRAKES FAILED TO STOP THE VEHICLE. HE WAS FORCED TO SHIFT GEARS IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING NOR WAS THE MANUFACTURER NO…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHEN HE ENGAGED THE ACCELERATOR PEDAL THE VEHICLE LUNGED FORWARD AND THE BRAKES FAILED TO STOP THE VEHICLE. HE WAS FORCED TO SHIFT GEARS IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING NOR WAS THE MANUFACTURER NOTIFIED OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 65,000.
NHTSA ODI #10473145
135,000 miles · Aug 21, 2012
Service Brakes
DRIVING 45 MPH. NEEDED TO APPLY BRAKES. NO BRAKE AT ALL. I WAS ABLE TO DOWN SHIFT AND THANK GOD I WAS GOIN UP A SLIGHT GRADE AND NO ONE WAS INFRONT OR CLOSE BEHIND. I WAS ABLE TO VEER OFF ROAD AND GET IT SLOWED IN TIME TO TURN INTO THE PARKING LOT OF THE DEALER WHEWRE I HAD PURCHASED MY TRUCK 10+ YEARS AGO. THEY SAID ALL BR…
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DRIVING 45 MPH. NEEDED TO APPLY BRAKES. NO BRAKE AT ALL. I WAS ABLE TO DOWN SHIFT AND THANK GOD I WAS GOIN UP A SLIGHT GRADE AND NO ONE WAS INFRONT OR CLOSE BEHIND. I WAS ABLE TO VEER OFF ROAD AND GET IT SLOWED IN TIME TO TURN INTO THE PARKING LOT OF THE DEALER WHEWRE I HAD PURCHASED MY TRUCK 10+ YEARS AGO. THEY SAID ALL BRAKES LINES MUST BE REPLACED. EXCESSIVE RUST ON ALL. I LOOKED AT THE LINE TO THE LEFT REAR WHEEL AFTER THEY REMOVED IT. IT FELL APART IN THE MECHANICS HAND. HOW IT HAD STOPPED ME IS UNKNOWN. BRAKE LINES DO NOT DO THIS. I'VE WORKED ON VEHICLES FOR 40 YEARS. HARD BRAKES LINES DO NOT RUST LIKE THIS. THE ENTIRE BRAKE LINE IS CORRODED. NOT JUST THE TOP SAY, FROM SALT. THE ENTIRE LINE. I WAS NOT ABLE TO STOP THE TRUCK WITH ANY REMAINING BRAKE. PHYSICS STOPPED MY TRUCK. FEET BEFORE PLOWING INTO A MAJOR INTERSECTION. I'D LOVE TO BUY ANOTHER GM PRODUCT. NOT SURE I HAVE THE FAITH THAT GM WANTS ME TO. THANKS GM. HOW CAN YOU BAILOUT OF THIS MESS? RECALL IT. I SPENT GOOD MONEY ON A CHEVY BECAUSE A CHEVY WILL LAST AS LONG AS YOUR WILLING TO CARE FOR IT PROPERLY. NOW I'M SPENDING IN EXCESS OF $800 TO FIX YOUR "LOW BIDDER" VENDORS MISTAKE. WHOMEVER MADE THE BRAKE LINES SHOULD BE BAILING ME OUT. MAKE IT RIGHT GM. JUST MAKE IT RIGHT. *TR
NHTSA ODI #10471749
122,000 miles · Aug 17, 2012
Service BrakesCrash
I WAS ATTEMPTING TO STOP FOR TRAFFIC AHEAD, I APPLIED THE BRAKES WHICH INITIALLY SLOWED THE TRUCK BUT THEN THE BRAKE PEDAL WENT TO THE FLOOR AND I WAS UNABLE TO STOP MY TRUCK AND HIT THE CAR IN FRONT OF ME. BOTH VEHICLES SUSTAINED ONLY MINOR COSMETIC DAMAGE. AFTER MAKING SURE THE OTHER PARTY WAS UNINJURED AND WAITING FOR THE POL…
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I WAS ATTEMPTING TO STOP FOR TRAFFIC AHEAD, I APPLIED THE BRAKES WHICH INITIALLY SLOWED THE TRUCK BUT THEN THE BRAKE PEDAL WENT TO THE FLOOR AND I WAS UNABLE TO STOP MY TRUCK AND HIT THE CAR IN FRONT OF ME. BOTH VEHICLES SUSTAINED ONLY MINOR COSMETIC DAMAGE. AFTER MAKING SURE THE OTHER PARTY WAS UNINJURED AND WAITING FOR THE POLICE TO ARRIVE I NOTICED FLUID UNDER THE TRUCK. I LOOKED UNDER THE TRUCK TO FIND BRAKE FLUID DRIPPING FROM THE BRAKE LINES THAT RUN ALONG THE FRAME RAIL AT THE DRIVERS DOOR. ALL THE BRAKE LINES WHERE SEVERELY RUSTED AND I HAD TO HAVE THE TRUCK TOWED TO A REPAIR CENTER TO HAVE THE BRAKE LINES REPLACED. I DON'T UNDERSTAND GM'S LOGIC OF USING A STAINLESS STEEL DRIVE SHAFT AND EXHAUST SYSTEMS, BUT USE LESSER MATERIAL FOR SOMETHING AS IMPORTANT AS THE BRAKELINES. A RECALL IS CLEARLY IN ORDER. *TR
NHTSA ODI #10471328
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.