NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reportsMileage unknown · Aug 18, 2016
Unknown Or Other
I OWN A 2000 CHEVY SILVERADO TRUCK AND HAD NOT HAD ANY PROBLEM(S) WITH DOORS UNTIL ON AUGUST 18, 2016 THE POWER LOCK MECHANISM FOR THE PASSENGER DOOR STOPPED WORKING. THE DRIVERS SIDE DOOR STILL WORKED. I FELT THAT MY KEY TO THE DOORS WOULD ALLOW ACCESS TO THE PASSENGER SIDE BUT IT WOULD NOT OPEN. THE KEY DID WORK ON THE DRIVE…
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I OWN A 2000 CHEVY SILVERADO TRUCK AND HAD NOT HAD ANY PROBLEM(S) WITH DOORS UNTIL ON AUGUST 18, 2016 THE POWER LOCK MECHANISM FOR THE PASSENGER DOOR STOPPED WORKING. THE DRIVERS SIDE DOOR STILL WORKED. I FELT THAT MY KEY TO THE DOORS WOULD ALLOW ACCESS TO THE PASSENGER SIDE BUT IT WOULD NOT OPEN. THE KEY DID WORK ON THE DRIVERS SIDE. THE SLIDE BAR ON THE PASSENGER SIDE DOOR ALSO COULD NOT MOVE THUS RENDERING THAT DOOR IN A CONSTANT STATE OF BEING LOCKED. I BECAME VERY CONCERNED THAT A VEHICLE COULD BE MADE WITH POWER LOCKS AND NOT HAVE SOME SYSTEM TO MANUALLY ALLOW THE OPENING OF THE VEHICLE. IF THE VEHICLE WERE IN AN ACCIDENT AND THE ONLY WAY OUT WAS THE PASSENGER DOOR THE OCCUPANT COULD FACE SERIOUS INJURY OR EVEN DEATH. THIS SEEMS TO BE A SEVERE SAFETY RISK. NOW I'M AFRAID TO DRIVE TRUCK FOR FEAR THIS MIGHT HAPPEN ON DRIVER'S SIDE AND I WOULD BE UNABLE TO GET OUT OF TRUCK.
NHTSA ODI #10897012
Mileage unknown · Aug 16, 2016
Service BrakesCrash
AS I WAS MAKING A TURN AFTER A STOP (WHICH FELT SOMEWHAT SLUGGISH OF A STOP) I WENT TO TAP THE BRAKES AND EXPERIENCED COMPLETE LOSS OF BRAKES. I WAS ON A DESCENT AND IMMEDIATELY THREW THE TRUCK INTO PARK TO CUT THE POWER TO WHEELS AND PRESSED EMERGENCY BRAKE WHICH WENT ALL THE WAY TO THE FLOOR. THE BRAKE PEDAL WENT ALL THE WAY T…
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AS I WAS MAKING A TURN AFTER A STOP (WHICH FELT SOMEWHAT SLUGGISH OF A STOP) I WENT TO TAP THE BRAKES AND EXPERIENCED COMPLETE LOSS OF BRAKES. I WAS ON A DESCENT AND IMMEDIATELY THREW THE TRUCK INTO PARK TO CUT THE POWER TO WHEELS AND PRESSED EMERGENCY BRAKE WHICH WENT ALL THE WAY TO THE FLOOR. THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR AND I HAD A SPLIT SECOND TO DECIDE WHAT TO DO AS THE ROAD WAS CAUSING RAPID ACCELERATION. I SAW ONE CHANCE TO DRIVE OVER A DITCH AND INTO A YARD BY A HOUSE. I DID SO, FLYING OVER THE DITCH. IT TOOK THE LENGTH OF THE ENTIRE YARD (ABOUT AN ACRE OF PROPERTY) FOR THE TRUCK TO EVENTUALLY STOP ON ITS OWN. I HAD TO HAVE IT TOWED WHERE UPON QUICK ASSESSMENT MECHANIC SAID I HAD CORRODED BRAKE LINES AND RUPTURED BRAKE HOSE. THIS MOST CERTAINLY COYLD HAVE REAULTED IN A FATAL ACCIDENT AS THE END OF THIS ROAD IS FULL OF HOUSES AND SHARP BEND WITH MULTIPLE TELEPHONE POLES. I AM STILL AWAITING FULL REPORT ON VEHICLE BUT AM VERY UPSET GM HAS NEVER EVER ADVISED ME OF THIS KNOWN ISSUE. I MAINTAINED VEHICLE AT GM DEALER AND AM SINGLE OWNER. NEVER ONCE WAS I NOTIFIED. MY VEHICLE HAS A LITTLE OVER 100,300 MILES ON IT AND I WAS JUST STARTING DOWN THE HILL, ABOUT 10MPH BUT RAPIDLY THE VEHICLE ACCELERATED WITHIN SPAN OF 2 HOUSES...RESULTING IN THE CRASH AND LOSS OF VEHICLE USE DUE TO NEED FOR TOWING. HAVE NO IDEA OFBSPEED AT THE DITCH AS I WASN'T ABLE TO LOOK DOWN .
NHTSA ODI #10896458
175,000 miles · Jul 5, 2016
Service Brakes
A BRAKE LINE EXPLODED AS I WAS BACKING OUT OF THE DRIVEWAY. LUCKILY, I WAS NOT GOING DOWN THE HIGHWAY. THERE IS SIGNIFICANT CORROSION ON MOST OF THE BRAKE LINES. IT SEEMS VERY DANGEROUS TO MAKE THEM OUT OF A MATERIAL THAT RUSTS COMPLETELY THROUGH AFTER 16 YEARS. WHY ARE THEY NOT USING STAINLESS STEEL?
NHTSA ODI #10882723
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
171,415 miles · May 7, 2016
Service Brakes
RUSTED BRAKE LINE BURST RESULTING IN COMPLETE BRAKE FAILURE. EVEN THE DUAL SYSTEM TO HAVE AT LEAST TWO FUNCTIONING BRAKES ALSO FAILED. GM USED SUBSTANDARD MATERIAL FOR THE LINES. THESE SHOULD HAVE NOT RUSTED IN LOUISIANA. THE VEHICLE WAS MOVING SLOWLY WHEN THE BRAKES FAILED. I WAS ABLE TO COAST UNTIL I JAMMED INTO PARK. SAME FA…
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RUSTED BRAKE LINE BURST RESULTING IN COMPLETE BRAKE FAILURE. EVEN THE DUAL SYSTEM TO HAVE AT LEAST TWO FUNCTIONING BRAKES ALSO FAILED. GM USED SUBSTANDARD MATERIAL FOR THE LINES. THESE SHOULD HAVE NOT RUSTED IN LOUISIANA. THE VEHICLE WAS MOVING SLOWLY WHEN THE BRAKES FAILED. I WAS ABLE TO COAST UNTIL I JAMMED INTO PARK. SAME FAILURE ON THE ROAD WOULD HAVE RESULTED IN A MAJOR ACCIDENT
NHTSA ODI #10863772
75,000 miles · Mar 7, 2016
Service Brakes
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE HYDRAULLIC BRAKE LINES WERE RUSTED AND CORRODED AND THE ABS WARNING LIGHT ILLUMINATED INTERMITTENTLY. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 75,000.
NHTSA ODI #10840323
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
125,000 miles · Jan 1, 2016
Exterior Lighting
THE REAR BRAKE LIGHTS ALL WORK DURING THE DAY. WHEN THE HEADLIGHTS ARE TURNED ON, THE BOTTOM REAR LIGHTS (BRAKE LIGHTS) TURN OFF WHEN STEPPING ON THE BRAKE.
NHTSA ODI #10817326
141,000 miles · Dec 3, 2015
Service Brakes
"TAKATA RECALL" AS I WAS LEAVING A LOCAL STORE IN MY NEIGBOR-HOOD,I PUSHED THE BRAKE PEDAL AND IT WENT ALMOST TO THE FLOOR. I THEN TRIED TO PUMP IT UP BUT THAT DID WORK. SO I DROVE IT SLOWLY HOME,DOWN SHIFTING WHILE COMING TO STOPS.I HAVE A 5 SPEED MANUAL TRANSMISSION. WHEN I GOT HOME I NOTICED MY BRAKE FLUID WAS LOW SO I ADDED …
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"TAKATA RECALL" AS I WAS LEAVING A LOCAL STORE IN MY NEIGBOR-HOOD,I PUSHED THE BRAKE PEDAL AND IT WENT ALMOST TO THE FLOOR. I THEN TRIED TO PUMP IT UP BUT THAT DID WORK. SO I DROVE IT SLOWLY HOME,DOWN SHIFTING WHILE COMING TO STOPS.I HAVE A 5 SPEED MANUAL TRANSMISSION. WHEN I GOT HOME I NOTICED MY BRAKE FLUID WAS LOW SO I ADDED FLUID. GOT INTO MY TRUCK AND PUMPED THE BRAKE PEDAL A FEW TIMES,NOTHING HAPPENED.GOT OUT AND SEEN BRAKE FLUID DRIPPING ON MY DRIVEWAY. I NOTICED IT WAS COMING FROM MY RUSTY BRAKE LINES BUT COULDN'T PINPOINT IT.TWO YEARS AGO I WAS WORKING IN W.VIRGINIA AND THROUGH THE WINTER MONTHS AND YES THE SALT DID A NUMBER ALL UNDER MY TRUCK,EVERYWHERE. I HAVE AN OLD FLIP PHONE THEREFOR NO FANCY DATA FROM THIS PHONE.
NHTSA ODI #10808157
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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