NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
509 reports82,000 miles · Oct 29, 2008
EquipmentService Brakes, Hydraulic
WHEN TRAVELING AT A LOW RATE OF SPEED AND ATTEMPTING TO BRAKE THE ABS BRAKE SYSTEM ENGAGES AND DOES NOT ALLOW ME TO STOP WHEN NECESSARY. THIS HAPPENS EVERY TIME I TRY TO STOP AT A LOW RATE OF SPEED. THIS WAS CORRECTED ONCE BY RECALL NUMBER 05V379000, HOWEVER THE PROBLEM HAS NOT BEEN PERMANENTLY FIXED AND WE ARE IN DANGER EVERY…
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WHEN TRAVELING AT A LOW RATE OF SPEED AND ATTEMPTING TO BRAKE THE ABS BRAKE SYSTEM ENGAGES AND DOES NOT ALLOW ME TO STOP WHEN NECESSARY. THIS HAPPENS EVERY TIME I TRY TO STOP AT A LOW RATE OF SPEED. THIS WAS CORRECTED ONCE BY RECALL NUMBER 05V379000, HOWEVER THE PROBLEM HAS NOT BEEN PERMANENTLY FIXED AND WE ARE IN DANGER EVERY TIME WE DRIVE THE VEHICLE. *TR
NHTSA ODI #10247174
Mileage unknown · Oct 28, 2008
Structure
MY 2002 CHEVY SUBURBAN REAR LIFT GLASS HAS SEPARATED AT BOTH HINGES. IT IS CURRENTLY BEING HELD IN PLACE WITH 100 MILE AN HOUR TAPE WHILE I AM TRYING TO FIND REPLACEMENT GLASS. APPARENTLY CHEVY WILL NOT RECALL THIS ALTHOUGH IT SEEMS TO BE VERY COMMON AND IS AN OBVIOUS HAZARD SHOULD THE GLASS FLY OFF ONTO A VEHICLE BEHIND ME. …
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MY 2002 CHEVY SUBURBAN REAR LIFT GLASS HAS SEPARATED AT BOTH HINGES. IT IS CURRENTLY BEING HELD IN PLACE WITH 100 MILE AN HOUR TAPE WHILE I AM TRYING TO FIND REPLACEMENT GLASS. APPARENTLY CHEVY WILL NOT RECALL THIS ALTHOUGH IT SEEMS TO BE VERY COMMON AND IS AN OBVIOUS HAZARD SHOULD THE GLASS FLY OFF ONTO A VEHICLE BEHIND ME. THE CHEVY DEALERSHIP IS CHARGING ~$900 FOR THE PART. *TR
NHTSA ODI #10246899
90,000 miles · Oct 20, 2008
EquipmentService Brakes, HydraulicStructure
STOPPING THE VEHICLE, THE ANTI-LOCK BRAKES WOULD KICK IN AT AROUND 3 TO 5 MILES PER HOUR AND THE VEHICLE WOULD NOT STOP, WOULD ROLL A FEW MORE FEET. ALMOST HIT A WOMAN AND CHILD IN CROSS WALK, HAD TO STAND UP ON BRAKES. THIS NOT STOPPING HAPPENED 5 OR 6 TIMES, THIS WAS THE CAME REACTION AS IN 2005 RECALL, CALLED GM. GM CHEVROLET…
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STOPPING THE VEHICLE, THE ANTI-LOCK BRAKES WOULD KICK IN AT AROUND 3 TO 5 MILES PER HOUR AND THE VEHICLE WOULD NOT STOP, WOULD ROLL A FEW MORE FEET. ALMOST HIT A WOMAN AND CHILD IN CROSS WALK, HAD TO STAND UP ON BRAKES. THIS NOT STOPPING HAPPENED 5 OR 6 TIMES, THIS WAS THE CAME REACTION AS IN 2005 RECALL, CALLED GM. GM CHEVROLET CUSTOMER ASSISTANCE CENTER SAID, GO AND GET THIS PROBLEM CONFIRMED BY A GM DEALERSHIP, DID OCT. 9, '08 AND THEY SAID CORROSION BUILD IN SAME AREA, BUT BECAUSE RIGHT FRONT HUB WAS REPLACED WITH A NON GM PART (AFTER MARKET PART) THEY HAVE NO RESPONSIBILITY. THIS HUB CAME WITH THE SENSOR ATTACHED. IN 2005 MY 2002 CHEVROLET SILVERADO WAS ISSUED A RECALL FOR SEVERE CORROSION AREA BETWEEN THE FRONT HUB/BEARING ASSEMBLY AND THE WHEEL SPEED SENSOR. THEY FOUND THE LEFT SIDE SENSOR WAS MISSING AN O-RING, THEY INSTALLED UNDER THE RECALL. THE VEHICLE IS DOING THE SAME THING AND A LOCAL DEALERSHIP SERVICE DEPARTMENT CONFIRMED THIS SAME CORROSION PROBLEM. CALLED CHEVROLET CUSTOMER ASSISTANCE CENTER OCT 10, 08. GM CHEVROLET CUSTOMER ASSISTANCE CENTER CALLED ME MONDAY OCT, 20, '08 AND SAID THAT ONCE THE RECALL WAS FIXED, (HOW DID THEY FIX CORROSION) THE SAME PROBLEM IS NOW MY PROBLEM. WHEN I DROPPED OFF THE VEHICLE THE BRAKES WERE BAD, WHEN I PICKED IT UP AT THE END OF THE DAY THEY WERE 10 TIME WORSE, REALLY UNSAFE TO DRIVE. THEY DID NOT CHARGE ME A DIME, SAID THAT THEY WOULD WORK IT OUT WITH LOCAL REP. I WILL GET THE VEHICLE FIXED, BUT HOW DOES THIS CORRECT THE PROBLEM? *TR
NHTSA ODI #10246074
20,000 miles · Sep 26, 2008
Service Brakes, Hydraulic
INBOARD DISC BRAKE PADS BOTH FRONT AND REAR QUICKLY LOSE CONTACT WITH BRAKE ROTOR AFTER REPLACEMENT - I HAVE BEEN PLAGUED WITH POOR PERFORMING BRAKES SINCE PURCHASE. THE INBOARD BRAKE PAD DOES NOT SELF ADJUST TO MAINTAIN CONTACT WITH THE ROTOR. INSTEAD IT SEIZES IN ITS STAINLESS STEEL ANTI-RATTLE GUIDES. SOMETIMES IT COCKS TO…
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INBOARD DISC BRAKE PADS BOTH FRONT AND REAR QUICKLY LOSE CONTACT WITH BRAKE ROTOR AFTER REPLACEMENT - I HAVE BEEN PLAGUED WITH POOR PERFORMING BRAKES SINCE PURCHASE. THE INBOARD BRAKE PAD DOES NOT SELF ADJUST TO MAINTAIN CONTACT WITH THE ROTOR. INSTEAD IT SEIZES IN ITS STAINLESS STEEL ANTI-RATTLE GUIDES. SOMETIMES IT COCKS TO ONE SIDE, SOMETIMES IT IS PARALLEL TO THE ROTOR. THIS CAUSES SEVERAL PROBLEMS - FIRST LOST OF BRAKE PERFORMANCE WITH LONG STOPPING DISTANCES BECAUSE THE SEIZED PAD IS INEFFECTIVE-THIS IS A SAFETY ISSUE, SECOND THE SEIZED PAD DOES NOT CLEAN THE ROTOR SURFACE CAUSING PREMATURE RUSTING AND SHORT ROTOR LIFE. MY ROTORS NEED REPLACING EVERY YEAR OR TWO BECAUSE OF RUST ON THE INBOARD SURFACE. I HAVE GONE THROUGH THE FOUR ORIGINAL ROTORS AND 12 REPLACEMENT ROTORS IN 47000 MILES AND SIX YEARS SINCE NEW. *TR
NHTSA ODI #10243585
20,000 miles · Sep 26, 2008
Service Brakes, Electric
FRONT WHEEL ABS SENSOR FAILURE (2 TIMES) - WHEN STOPPING, THE ABS CONTROLLER MODULATES THE BRAKE HYDRAULIC PRESSURE CAUSING LONG STOP DISTANCES. THIS FIRST INCIDENT OCCURRED IN 2004 WHEN THE VEHICLE WAS TWO YEARS OLD AND AGAIN IN 2007 WHEN THE VEHICLE WAS FIVE YEARS OLD. CONSEQUENCES BOTH TIMES WERE NEAR MISSES OF THE CAR IN F…
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FRONT WHEEL ABS SENSOR FAILURE (2 TIMES) - WHEN STOPPING, THE ABS CONTROLLER MODULATES THE BRAKE HYDRAULIC PRESSURE CAUSING LONG STOP DISTANCES. THIS FIRST INCIDENT OCCURRED IN 2004 WHEN THE VEHICLE WAS TWO YEARS OLD AND AGAIN IN 2007 WHEN THE VEHICLE WAS FIVE YEARS OLD. CONSEQUENCES BOTH TIMES WERE NEAR MISSES OF THE CAR IN FRONT OF ME. I WAS ABLE TO STOP THE VEHICLE WITH THE EMERGENCY BRAKE BOTH TIMES BEFORE COLLISION. THE FIRST TIME ONE FRONT WHEEL ABS SENSOR WAS REPLACED BY DEALER AT NO CHARGE UNDER WARRANTY. THE SECOND TIME BOTH FRONT WHEEL ABS SENSORS WERE REMOVED AND COATED WITH AN ANTI-CORROSIVE MATERIAL BY THE DEALER AT NO CHARGE UNDER NHTSA RECALL. *TR
NHTSA ODI #10243582
46,700 miles · Sep 26, 2008
Service Brakes, Hydraulic
SUDDEN METAL HYDRAULIC BRAKE LINE RUPTURE ONE OF TWO BRAKE LINE RUNS BETWEEN THE MASTER CYLINDER AND ABS FRAME MOUNTED CONTROLLER RUPTURED. THE EXTERIOR APPEARANCE OF THE LINE IS EXTREMELY RUSTY. THE LINE IS IN A BUNDLE OF FOUR LINES - TWO GOING TO THE ABS CONTROLLER AND TWO RETURNING FROM THE ABS CONTROLLER TO EACH OF THE …
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SUDDEN METAL HYDRAULIC BRAKE LINE RUPTURE ONE OF TWO BRAKE LINE RUNS BETWEEN THE MASTER CYLINDER AND ABS FRAME MOUNTED CONTROLLER RUPTURED. THE EXTERIOR APPEARANCE OF THE LINE IS EXTREMELY RUSTY. THE LINE IS IN A BUNDLE OF FOUR LINES - TWO GOING TO THE ABS CONTROLLER AND TWO RETURNING FROM THE ABS CONTROLLER TO EACH OF THE TWO FRONT WHEELS. THE OTHER THREE LINES HAVE EXTREMELY RUSTY SURFACES AND APPEAR NEAR RUPTURE AS WELL. THE FAILURE OCCURRED WHEN BRAKING FOR A TRAFFIC LIGHT AND WAS MADE APPARENT BY THE BRAKE PEDAL SUDDENLY DROPPING TO THE FLOOR. NO ACCIDENT OR INJURIES OCCURRED. THE FAILURE IS NOT YET CORRECTED. I HAVE ONLY CALLED REPAIR SHOP FOR ESTIMATE. THE ESTIMATE WAS $400 TO $600 PER LINE OR $1600 TO $2400 FOR REPLACING ALL FOUR LINES BASED ON MATERIAL COST PLUS $82 / HR LABOR. *TR
NHTSA ODI #10243577
104,000 miles · Sep 15, 2008
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHEN APPROACHING A STOP SIGN OR TRAFFIC LIGHT, THE ABS ENGAGES TOO EARLY AND THE BRAKE PEDAL VIBRATES. THE VEHICLE WAS TAKEN TO A SERVICE STATION AND IT WAS DISCOVERED THAT THE CALIPERS NEEDED TO BE REPLACED DUE TO RUST BUILD UP. THE VIN WAS UNKNOWN.…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHEN APPROACHING A STOP SIGN OR TRAFFIC LIGHT, THE ABS ENGAGES TOO EARLY AND THE BRAKE PEDAL VIBRATES. THE VEHICLE WAS TAKEN TO A SERVICE STATION AND IT WAS DISCOVERED THAT THE CALIPERS NEEDED TO BE REPLACED DUE TO RUST BUILD UP. THE VIN WAS UNKNOWN. THE CURRENT MILEAGE WAS 105,000 AND FAILURE MILEAGE WAS 10,400.
NHTSA ODI #10242201
78,407 miles · Aug 29, 2008
Power Train
SUN SHELL GEARS IN AUTOMATIC TRANSMISSION (4L60E) STRIPPED. LOSS OF REVERSE, SECOND AND FOURTH GEARS IN AUTOMATIC TRANSMISSION. 1ST TIME WITH 17,982 MILES ON VEHICLE AND THE 2ND TIME WITH 78,407 MILES ON VEHICLE. DEALER REPAIRED FIRST TIME UNDER WARRANTY. SECOND TIME THEY SPLIT THE REPAIR BILL OF $850.00. *TR
NHTSA ODI #10240153
Mileage unknown · Aug 28, 2008
Structure
THE VEHICLE IS A 2002 SILVERADO 1500. THE FRAME CROSS MEMBER THAT IS LOCATED JUST IN FRONT OF THE GAS TANK HAS RUSTED OUT ON THE BASE OF THE MOUNTS ON EACH SIDE WHERE IT IS CONNECTED TO THE LOWER PART OF THE FRAME. THIS MAKES THE VEHICLE NOT ABLE TO BE INSPECTED IN THE STATE OF VERMONT. THE REGIONAL CHEVY REP SAID IT ISN'T A COM…
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THE VEHICLE IS A 2002 SILVERADO 1500. THE FRAME CROSS MEMBER THAT IS LOCATED JUST IN FRONT OF THE GAS TANK HAS RUSTED OUT ON THE BASE OF THE MOUNTS ON EACH SIDE WHERE IT IS CONNECTED TO THE LOWER PART OF THE FRAME. THIS MAKES THE VEHICLE NOT ABLE TO BE INSPECTED IN THE STATE OF VERMONT. THE REGIONAL CHEVY REP SAID IT ISN'T A COMMON PROBLEM WHICH LEADS ME TO BELIEVE IT MUST BE A DEFECT IN THE UNDERCOATING DONE ON MY TRUCK THAT ALLOWED THIS DETERIORATION TO HAPPEN. THE TRUCK IS WELL CARED FOR AND SHOULD NOT RUST IN SUCH A BASIC STRUCTURAL COMPONENT. *TR
NHTSA ODI #10240146
119,000 miles · Aug 21, 2008
Power Train
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT ATTEMPTED TO PLACE THE VEHICLE INTO REVERSE, BUT IT WOULD NOT MOVE. THE TRANSMISSION FAILED AND WAS REBUILT; HOWEVER, IT FAILED AGAIN WITHIN 2.5 YEARS. THE FAILURE MILEAGE WAS 119,000 AND CURRENT MILEAGE WAS 159,000.
NHTSA ODI #10239229
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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