NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
164 reportsClear category filter64,500 miles · Oct 13, 2005
Service Brakes, Hydraulic
ABS BRAKE SYSTEM HAS BEEN RECALLED FOR 2002 SILVERODO TRUCKS IN SEVERAL STATES WEST VA. BEING ONE OF THEM I LIVE WITHIN 10 MIN OF WEST, VA. WE ARE A STATE THAT GETS A LOT OF ROAD SALT. MY BRAKE SENSOR SYSTEM HAS GONE OUT . THE CHAMPAIGN NUMBER IS 05VB379000. VIRGINIA NEEDS TO BE ADDED TO THIS RECALL LIST I HAVE JUST HAD ONE SID…
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ABS BRAKE SYSTEM HAS BEEN RECALLED FOR 2002 SILVERODO TRUCKS IN SEVERAL STATES WEST VA. BEING ONE OF THEM I LIVE WITHIN 10 MIN OF WEST, VA. WE ARE A STATE THAT GETS A LOT OF ROAD SALT. MY BRAKE SENSOR SYSTEM HAS GONE OUT . THE CHAMPAIGN NUMBER IS 05VB379000. VIRGINIA NEEDS TO BE ADDED TO THIS RECALL LIST I HAVE JUST HAD ONE SIDE REPAIRED AT A COST OF $333.00 NOW THE OTHER SIDE IS BAD. THIS RECALL STARTED IN AUGUST BUT WILL NOT BE ISSUED UNTILL NOV. 2005 THERE COULD BE SEVERAL ACCIDENTS AND MAYBE INJURIES OR FATALITIES BEFORE NOV.PLEASE HELP TO HAVE VIRGINIA INCLUDED IN THIS RECALL AT LEAST THE MOUNTIANS OF SOUTH WEST VIRGINIA THANK YOU FOR YOR ASSISTANCE. *NM
NHTSA ODI #10139552
81,100 miles · May 10, 2005
Service Brakes, HydraulicCrash
AT LOW SPEEDS THE ABS SYSTEM ENGAGES WHEN THE BREAK IS APPLIED CAUSING THE TRUCK TO BRAKE POORLY. UNTIL JUST RECENTLY I'VE HAD NO PROBLEMS AND MY BRAKE PADS ARE FINE PER MY MECHANIC WHO CHECKED THEM ABOUT 2 WEEKS AGO. WHILE DRIVING THE TRUCK I PULLED INTO A FRIENDS DRIVEWAY ABOUT 5MPH AND APPLIED THE BRAKE ON DRY PAVEMENT WHEN…
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AT LOW SPEEDS THE ABS SYSTEM ENGAGES WHEN THE BREAK IS APPLIED CAUSING THE TRUCK TO BRAKE POORLY. UNTIL JUST RECENTLY I'VE HAD NO PROBLEMS AND MY BRAKE PADS ARE FINE PER MY MECHANIC WHO CHECKED THEM ABOUT 2 WEEKS AGO. WHILE DRIVING THE TRUCK I PULLED INTO A FRIENDS DRIVEWAY ABOUT 5MPH AND APPLIED THE BRAKE ON DRY PAVEMENT WHEN THE ABS CAME ON AND I WAS SENT CRASHING INTO HIS GARAGE. THIS HAS HAPPEND ALMOST 20 TIMES SINCE THAT DAY. I CAN NOT EVEN DRIVE MY TRUCK TO WORK ANYMORE DUE TO FEAR OF HITTING SOMEONE. I HAVE A 2002 SILVERADO XC 1500 4X4 THAT IS VERY WELL MAINTAINED WITH 81332MILES. MY FATHER AND BROTHER BOTH OWN SIMILAR MODEL GM TRUCKS BOTH 2000 MODELS WITH EXACTLY THE SAME PROBLEM. NOTHING HAS BEEN DONE AS OF YET TO FIX MY TRUCK I'M WAITING TO SEE IF I CAN MAKE THE DEALER PAY FOR THE DAMAGES DONE AND FIX MY BRAKE SYSTEM.
NHTSA ODI #10120497
16,800 miles · May 3, 2005
Service Brakes, Hydraulic
DRIVING 2002 CHEVY SILVERADO 1500 PICKUP. SLOWING DOWN TO STOP IN TRAFFIC AND/OR SUDDEN STOPS AT SLOW SPEED CAUSES ANTILOCK BRAKE SYSTEM TO ACTIVITATE AND REQUIRES FARTHER STOPPING DISTANCE.
NHTSA ODI #10119676
36,546 miles · Mar 28, 2005
Service Brakes, Hydraulic
COMPLAINT REF [XXX] ON MAR 12,2005 I HAD A FAILURE OF THE ABS BRAKE SYSTEM THAT RESULTED IN A COMPLETE BRAKE FAILURE! I STOPPED THE VEHICLE BY TURNING OFF THE IGNITION. THE FAILURE WAS IN A PARKING LOT AT SLOW SPEED. I HAD THE SAME TYPE OF FAILURE ON AUG 3,2004. I REPORTED IT TO THE NHTSA AT THAT TIME. LAST AUG GM OK'D A…
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COMPLAINT REF [XXX] ON MAR 12,2005 I HAD A FAILURE OF THE ABS BRAKE SYSTEM THAT RESULTED IN A COMPLETE BRAKE FAILURE! I STOPPED THE VEHICLE BY TURNING OFF THE IGNITION. THE FAILURE WAS IN A PARKING LOT AT SLOW SPEED. I HAD THE SAME TYPE OF FAILURE ON AUG 3,2004. I REPORTED IT TO THE NHTSA AT THAT TIME. LAST AUG GM OK'D A WARRANTY FIX BY USING SERVICE BULLT. # 02-05-006A-(NOV 26,2002). AT THAT TIME THERE WAS DAMAGE TO THE FRONT OF THE VEHICLE DUE TO RUNNING INTO A FENCE. AFTER COMPLAINING, THEY AGREED TO PAY FOR FIXING THE DAMAGE. NOW BACK TO THE PRESENT FAILURE. THE DEALERSHIP SAID THE PROBLEM THIS TIME WAS THE WHEEL HUB ASSEMBLIES WHICH THE ABS SENSORS ARE ATTACHED. CONTACTING GM, I TOLD THEM I BELIEVED THE REPAIR SHOULD BE COVERED UNDER THE WARRANTY EVEN THOUGH MY MILEAGE WAS 36,500. THEY SAID IT WOULD NOT BE COVERED UNDER WARRANTY BECAUSE IT WAS 3 MONTHS AND 500 MILES OVER THE WARRANTY. I DID NOT AGREE WITH THEM AS I SEE THIS AS A CONTINUATION OF LAST AUGUST'S PROBLEM AND THAT IT WASN'T FIXED CORRECTLY AT THAT TIME. I HAD THE TRUCK FIXED AND PAID THE $631 MYSELF. I AM CONTACTING YOU BECAUSE I BELIEVE THERE IS AN ABS BRAKE PROBLEM WITH THE VEHICLE THAT IS NOT PECULIAR TO MY VEHICLE BUT NO DOUBT IS WIDESPREAD. I KNOW YOU DO NOT HAVE AN INVESTIGATION AT THIS TIME BUT I THINK THERE SHOULD BE? THE FACT THAT THERE IS A BULLETIN ON IT TELLS ME IT IS HAPPENING TO OTHER VEHICLES! MY VEHICLE IS A 2002 CHEVY SILVERADO FULL SIZE PICK UP. IT IS NOT 4 WHEEL DRIVE AND IS A C1500. VEH ID # IS [XXX]. THANK YOU FOR YOUR HELP. [XXX]. *JB *JS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #10115946
49,013 miles · Feb 21, 2005
Service Brakes, Hydraulic
SOME TIMES WHEN PUSHING DOWN ON THE FOOT BRAKE, IT BECOMING STIFF AND WON'T DEPRESS. AT THIS TIME THE USE OF THE HAND BRAKE HAS TO BE USED TO STOP. IF HAD SEVERAL CLOSE CALLS, BUT NO ACCIDENT SO FAR.
NHTSA ODI #10111897
9,976 miles · Jan 12, 2005
Service Brakes, Hydraulic
VEHICLE HAD GRINDING NOISE FROM REAR WHEELS AND LOSS OF POWER. REAR BRAKES FAILED WITH 9, 975 MILES ON VEHICLE. DEALER FOUND RIGHT REAR BRAKE CALIPER RUSTED SOLID AND NOT OPERATING, CAUSING INNER RIGHT DISK BRAKE PAD TO WEAR OUT PREMATURELY. WAS ADVISED THAT THIS WAS A RESULT OF THE VEHICLE NOT BEING USED ENOUGH, ALLOWING COMPO…
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VEHICLE HAD GRINDING NOISE FROM REAR WHEELS AND LOSS OF POWER. REAR BRAKES FAILED WITH 9, 975 MILES ON VEHICLE. DEALER FOUND RIGHT REAR BRAKE CALIPER RUSTED SOLID AND NOT OPERATING, CAUSING INNER RIGHT DISK BRAKE PAD TO WEAR OUT PREMATURELY. WAS ADVISED THAT THIS WAS A RESULT OF THE VEHICLE NOT BEING USED ENOUGH, ALLOWING COMPONENTS INSIDE THE CALIPER TO RUST. DEALER REBUILT RIGHT REAR CALIPERS, TURNED DOWN BOTH EXCESSIVELY RUSTED REAR ROTORS AND REPLACED REAR DISC BRAKE PADS.
NHTSA ODI #10106236
28,500 miles · Dec 26, 2004
Service Brakes, Hydraulic
CHEVY TRUCK BEGAN A VIBRATION AND CHATTERING IN BRAKE PEDAL AT LOW SPEED . *BF THE ABS BRAKING SYSTEM WHEEL HAD LOCKED UP. *SC
NHTSA ODI #10109537
11,627 miles · Aug 20, 2004
Service Brakes, HydraulicSuspension
THE CONSUMER TOOK THE VEHICLE THROUGH INSPECTION AND IT WAS DETERMINED THAT THE ROTORS HAD RUSTED. THE ROTORS WERE TURNED INSTEAD OF BEING REPLACED BY THE DEALER. THE CONSUMER WAS DRIVING THE VEHICLE APPROXIMATELY 3 MONTHS LATER AND THE VEHICLE WAS HARD TO STOP WHEN THE BRAKES WERE APPLIED. THE CONSUMER TOOK THE VEHICLE TO TH…
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THE CONSUMER TOOK THE VEHICLE THROUGH INSPECTION AND IT WAS DETERMINED THAT THE ROTORS HAD RUSTED. THE ROTORS WERE TURNED INSTEAD OF BEING REPLACED BY THE DEALER. THE CONSUMER WAS DRIVING THE VEHICLE APPROXIMATELY 3 MONTHS LATER AND THE VEHICLE WAS HARD TO STOP WHEN THE BRAKES WERE APPLIED. THE CONSUMER TOOK THE VEHICLE TO THE DEALER AGAIN AND IT WAS DISCOVERED THAT THE BEARING AND HUB ASSEMBLY WAS DEFECTIVE AND IT WAS REPLACED ON THE LEFT SIDE. *JB
NHTSA ODI #10083347
62,000 miles · Aug 12, 2004
Service Brakes, HydraulicCrash
WHEN THE CONSUMER APPLIED THE BRAKE WHILE DRIVING 3 MPH TO PARK THE VEHICLE THE ABS ACTIVATED WHICH RESULTED IN EXTENDED STOPPINGDISTANCE. THE VEHICLE HIT A BARRIER WALL WHICH CAUSED $85 IN DAMAGE. *AK *NM
NHTSA ODI #10082125
92,000 miles · Apr 20, 2004
Service Brakes, HydraulicStructure
THE TAILGATE FELL OFF AT 70 MPH AND THE CONSUMER ALMOST HAD A COLLISION. THE CONSUMER HAD TAKEN THE VEHICLE TO THE DEALER AND THEY STATED THAT THE SAFETY CABLE DETERIORATED AND THE BRAKES WOULD BE REPLACED. *AK *SC *JB
NHTSA ODI #10061266
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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