2002 CHEVY SILVERADO 4X4 EXT CAB TRUCK WAS RECALLED IN 2005 FOR ANTI LOCK BRAKE ACTIVATION AT LOW SPEEDS THE DEALER CLEANED PUT ON ANTI CORROSIVE MATERIAL ON SENSOR (AFTER TRUCK WAS IN A ACCIDENT I GOT THE NOTICE IN THE MAIL 3 DAYS LATER) NOW 7/11/2013 ITS HAPPENING AGAIN, THEY WILL NOT FIX IT AGAIN ONLY ONCE, COST FOR NEW HUB A…
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2002 CHEVY SILVERADO 4X4 EXT CAB TRUCK WAS RECALLED IN 2005 FOR ANTI LOCK BRAKE ACTIVATION AT LOW SPEEDS THE DEALER CLEANED PUT ON ANTI CORROSIVE MATERIAL ON SENSOR (AFTER TRUCK WAS IN A ACCIDENT I GOT THE NOTICE IN THE MAIL 3 DAYS LATER) NOW 7/11/2013 ITS HAPPENING AGAIN, THEY WILL NOT FIX IT AGAIN ONLY ONCE, COST FOR NEW HUB AND SENSOR I ABOUT $700 PER SIDE $1,400 TOTAL TO FIX PROBLEM, THIS IS A SAFETY ISSUE GM, CHEVY SHOULD FIX NOT PUT A BAND AID ON THE FIX. ALSO THE CHEVY DEALER SAID TO ME ITS A LIFETIME WARRANTY ON PARTS AND LABOR WOW THAT'S GREAT AT MY EXPENSE. WHY DIDN'T THEY PUT THE LIFETIME WARRANTY WHEN ITS NEW, NOW I HAVE TO PAY TWICE SOME DEAL. *TR
NHTSA ODI #10524472
111,238 miles · Jul 3, 2013
Fuel System, GasolineService Brakes
LOST MOST OF MY BRAKING AS A RESULT OF HEAVY RUST ON BRAKE LINES AND OTHER BRAKE PARTS. MECHANIC SAID THIS WAS WAY MORE RUST THAN THERE SHOULD OF BEEN IN THESE AREAS. *TR
NHTSA ODI #10523032
91,000 miles · Jun 25, 2013
Service BrakesService Brakes, Hydraulic
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 5 MPH, THE BRAKES WERE APPLIED AND THE ANTI LOCK BRAKE SYSTEM ENGAGED INDEPENDENTLY. THE CONTACT MENTIONED THAT THE FAILURE RECURRED ON AN INTERMITTENT BASIS. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING. THE…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 5 MPH, THE BRAKES WERE APPLIED AND THE ANTI LOCK BRAKE SYSTEM ENGAGED INDEPENDENTLY. THE CONTACT MENTIONED THAT THE FAILURE RECURRED ON AN INTERMITTENT BASIS. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE VEHICLE WAS REPAIRED PREVIOUSLY UNDER NHTSA CAMPAIGN NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC). THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 91,000 AND THE CURRENT MILEAGE WAS 93,000. *TR
NHTSA ODI #10521758
82,766 miles · Jun 25, 2013
Service Brakes
WENT TO STOP FOR A RED LIGHT AND THE DRIVE SIDE REAR BRAKE LINE BLEW,I WENT THROUGH THE INTERSECTION WITH NO BRAKES. THAT WAS A THRILL. *TR
NHTSA ODI #10521744
Mileage unknown · Jun 17, 2013
Service Brakes
SOMETIMES WHEN I APPLY THE BRAKES AT LOW SPEED 5 -10 MPH ON DRY PAVEMENT THE ABS WILL START TO CYCLE MAKING THE STOPPING DISTANCE EXTREMELY LONG. *TR
NHTSA ODI #10520223
Mileage unknown · Jun 17, 2013
Service Brakes
THE EMERGENCY BRAKES HAVE NEVER WORKED, THE PEDAL GOES TO THE FLOOR AND WILL NOT HOLD THE TRUCK. I HAVE A 4 WHEEL DRIVE WITH AN AUTOMATIC TRANSMISSION. WHEN ON AN INCLINE IN PARK THE TRUCK WILL SOMETIMES START TO ROLL DOWN HILL. *TR
NHTSA ODI #10520221
53,817 miles · Jun 7, 2013
Service Brakes
I HAD TRAVELED APPROXIMATELY 1/2 MILE FROM MY HOUSE WHEN I APPLIED THE BRAKES TO SLOW DOWN. THE PEDAL HAD BARELY ANY PRESSURE AS I APPLIED THE BRAKE, FORTUNATELY I HAD A LITTLE BIT OF PRESSURE AND I WAS ABLE TO BRING THE VEHICLE TO A STOP, BY A COMBINATION OF DOWNSHIFTING AND USING WHAT LITTLE BRAKES THAT I HAD LEFT. THE BRAKE …
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I HAD TRAVELED APPROXIMATELY 1/2 MILE FROM MY HOUSE WHEN I APPLIED THE BRAKES TO SLOW DOWN. THE PEDAL HAD BARELY ANY PRESSURE AS I APPLIED THE BRAKE, FORTUNATELY I HAD A LITTLE BIT OF PRESSURE AND I WAS ABLE TO BRING THE VEHICLE TO A STOP, BY A COMBINATION OF DOWNSHIFTING AND USING WHAT LITTLE BRAKES THAT I HAD LEFT. THE BRAKE WARNING LIGHT ON THE PANEL CAME ON AT THAT TIME. THE VEHICLE WAS TAKEN TO A LOCAL SHOP TO HAVE THE PROBLEM CHECKED OUT. I WAS TOLD THAT MY BRAKE LINES WERE COMPLETELY RUSTED OUT AND THAT THEY ALL HAD TO BE REPLACED. I WAS APPROXIMATELY 1/8 OF A MILE FROM MY ENTRANCE TO THE HIGHWAY, AND I WAS FORTUNATE THAT THIS HAPPENED BEFORE I GOT ON THE HIGHWAY. I WOULD HAVE BEEN IN CONGESTED MORNING TRAFFIC TRAVELING AT A SPEED OF 60MPH. I HAD NO PRIOR WARNING. I WAS TOLD BY THE REPAIR SHOP THAT THE LINES WERE RUSTED SO BAD THAT IT WAS SENSELESS TO TRY TO FIX JUST ONE SECTION, AND THAT IF THEY DID THAT I WOULD BE RETURNING SHORTLY TO REPAIR ADDITIONAL PARTS OF THE LINES. THEY TOLD ME THAT THIS WAS A VERY LABOR INTENSIVE REPAIR AND THAT IT COULD COST APPROXIMATELY $1000 DOLLARS. I WAS ALSO TOLD THAT THIS WAS A COMMON PROBLEM WITH MANY CHEVROLETS MANUFACTURED IN THE 2000 YEARS. THIS IS A VERY DANGEROUS SITUATION AND THEIR SHOULD HAVE BEEN A RECALL ON THIS ISSUE. *TR
NHTSA ODI #10515628
51,700 miles · May 23, 2013
Service Brakes
LEAKING FLUID FOUND TO BE BRAKE FLUID COMING FROM RUST RUPTURED BRAKE LINES, ALL LINES RUSTED AND DEEMED BY DEALERSHIP TO REQUIRE REPLACEMENT OF LINES AND FRONT BRAKE CALIPERS. *TR
NHTSA ODI #10513282
199,830 miles · May 22, 2013
Service Brakes
UPON REQUIRING AN EMERGENCY STOP FROM 50 MPH APPROACHING A STOP LIGHT AT A BUSY INTERSECTION, ONE OF THE BRAKE LINES BURST. THE BRAKE PEDAL WENT TO THE FLOOR. (NO BRAKE WARNING LIGHT, NO LOW BRAKE FLUID LIGHT, AND NO LOSS OF ABS LIGHT). I PUMPED THE BRAKES AND DROPPED THE TRANSMISSION INTO 1ST GEAR IN HOPES OF SLOWING DOWN BEFO…
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UPON REQUIRING AN EMERGENCY STOP FROM 50 MPH APPROACHING A STOP LIGHT AT A BUSY INTERSECTION, ONE OF THE BRAKE LINES BURST. THE BRAKE PEDAL WENT TO THE FLOOR. (NO BRAKE WARNING LIGHT, NO LOW BRAKE FLUID LIGHT, AND NO LOSS OF ABS LIGHT). I PUMPED THE BRAKES AND DROPPED THE TRANSMISSION INTO 1ST GEAR IN HOPES OF SLOWING DOWN BEFORE A CRASH. I MADE THE RIGHT TURN AT THE INTERSECTION, WHICH WAS UP HILL AND EVENTUALLY BROUGHT THE VEHICLE TO A COMPLETE STOP. I PUT THE TRUCK IN PARK AND APPLIED THE EMERGENCY BRAKE. FORTUNATELY, THE LIGHT JUST CHANGED SO THE INTERSECTION WAS STILL CLEAR. THE VEHICLE WAS TOWED AFTER CONFIRMATION OF THE DAMAGED BRAKE LINE. FURTHER INSPECTION HAS REVEALED THAT ALL THE STEEL BRAKE LINES ARE HEAVILY CORRODED AND ARE IN NEED OF REPLACEMENT. THIS ISSUE SEEMS PRETTY FREQUENT WITH THIS PARTICULAR YEAR AND MODEL. A WEAK OR POORLY DESIGNED BRAKE LINE SHOULD BE THE RESPONSIBILITY OF THE MANUFACTURER. PROOF OF FAULT IS INDICATED IN GM'S DECISION TO CHANGE THE BRAKE LINES TO STAINLESS STEEL IN NEWER MODELS. IF NO RECALL IS ISSUED AT LEAST A WARNING SHOULD BE GIVEN TO CURRENT OWNERS!!! *TR
NHTSA ODI #10513117
116,302 miles · May 20, 2013
Service Brakes
MY ANTILOCK BRAKES KICKED IN WHEN I WAS GOING 5 MPH. I DRIFTED RIGHT INTO A ROAD THAT I WAS ABOUT TO ENTER. I COULD NOT STOP THE VEHICLE AT LOW SPEEDS. *TR
NHTSA ODI #10512916
Official recalls
0
No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2
EA04011 · 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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