NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
78 reportsClear category filter47 miles · Mar 26, 2008
Service Brakes, Hydraulic
2000 GMC 1500 SIERRA 47,357 MILES HAD A RECALL ABOUT A YEAR AGO. THEY CLEANED AND ETCHED FRONT BRAKE LINES AT THE CALIPERS. TODAY TOWING A TRAILER WITH A CAR IN THE I-95 CORRIDOR BETWEEN D.C. AND BALTIMORE I HAD TO ATTEMPT A QUICK STOP FOR SLOW TRAFFIC WHEN SUDDENLY I LOST ALL BREAKING PRESSURE AND FORTUNATELY ENDED AT THE …
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2000 GMC 1500 SIERRA 47,357 MILES HAD A RECALL ABOUT A YEAR AGO. THEY CLEANED AND ETCHED FRONT BRAKE LINES AT THE CALIPERS. TODAY TOWING A TRAILER WITH A CAR IN THE I-95 CORRIDOR BETWEEN D.C. AND BALTIMORE I HAD TO ATTEMPT A QUICK STOP FOR SLOW TRAFFIC WHEN SUDDENLY I LOST ALL BREAKING PRESSURE AND FORTUNATELY ENDED AT THE INNER GRASS SPACE BARELY SAVING A HORRIBLE CRUSH WITH SEVERAL CARS LINED IN FRONT OF ME. MY FRONT RESERVOIR WAS VERY LOW, UNDERNEATH THE CAR AT THE DRIVER'S DOOR LEVEL ALL 4 BREAK LINES WERE BADLY SWOLLEN AND CORRODED,ONE AT LEAST WAS OBVIOUSLY DRIPPING,AND EVEN THE FRAME WAS CORRODED AND METAL CHUNKS WERE EASILY KNOCKED. OTHER SECTIONS LOOK VERY RUSTY WORSE THAN A 65 FORD GALAXIE AM RESTORING .AND THIS AT ALMOST 48,000 MILES . *TR
NHTSA ODI #10222444
106,500 miles · Nov 5, 2007
Service Brakes, HydraulicSuspensionWheels
TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. THE CONTACT RECEIVED A RECALL NOTICE FOR THE SERVICE BRAKES WHEEL SPEED SENSOR. ON SEPTEMBER 19, 2007, THE DEALER REPAIRED THE RECALL; HOWEVER, THE ABS AND BRAKE WARNING LIGHTS HAVE BEEN ILLUMINATED SINCE THE RECALL REPAIR WAS PERFORMED. WHILE DRIVING BETWEEN 15 AND 50 MPH, THE VEHI…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. THE CONTACT RECEIVED A RECALL NOTICE FOR THE SERVICE BRAKES WHEEL SPEED SENSOR. ON SEPTEMBER 19, 2007, THE DEALER REPAIRED THE RECALL; HOWEVER, THE ABS AND BRAKE WARNING LIGHTS HAVE BEEN ILLUMINATED SINCE THE RECALL REPAIR WAS PERFORMED. WHILE DRIVING BETWEEN 15 AND 50 MPH, THE VEHICLE MADE A LOUD NOISE. THE DEALER STATED THAT THE WHEEL SPEED SENSOR AND WHEEL BEARINGS WERE ONE UNIT. THE DEALER ALSO STATED THAT THEY CLEANED ONE SIDE AND THE OTHER SIDE DID NOT NEED TO BE CLEANED. THE SERVICE MANAGER CONFIRMED THAT THEY USED FORCE TO REMOVE PARTS FROM THE VEHICLE AND STATED THAT THE VEHICLE WAS ABLE TO WITHSTAND MUCH MORE DAMAGE THAN WHAT OCCURRED. DURING THE RECALL REPAIR, THE DEALER DAMAGED THE FRONT BALL JOINT AND DENTED THE ROTORS. THE DRIVER SIDE BALL JOINTS WERE REPLACED; HOWEVER, THE FAILURE IS WORSE THAN IT WAS PRIOR TO HAVING THE RECALL REPAIR PERFORMED. THE DEALER WAS UNABLE TO PROVIDE THE CONTACT WITH AN INVOICE. WHEN THE ABS LIGHT IS ILLUMINATED, THE BRAKES FAIL TO OPERATE NORMALLY. THE CONTACT HAS TO SHUT OFF THE ENGINE TO ALLOW THE ABS TO RESET ITSELF. A SECOND DIAGNOSIS BY A DIFFERENT DEALER REVEALED THAT THE DRIVER AND FRONT PASSENGER SIDE WHEEL BEARINGS WERE DAMAGED, INCLUDING THE PASSENGER SIDE THAT WAS REPAIRED FOR THE RECALL. THE SECOND DEALER FURTHER STATED THAT THE NOISE WAS DUE TO THE WHEEL BEARINGS FAILING TO MOVE FREELY. THE MANUFACTURER WAS INFORMED BY THE DEALER THAT THERE WAS NO NOISE PRESENT. THE MANUFACTURER PROVIDED THE CONTACT WITH CLAIM NUMBER 71558918083. THE APPROXIMATE FAILURE MILEAGE WAS 106,500 AND CURRENT MILEAGE WAS 108,500. UPDATED 03/05/08. *LJ THE CONSUMER STATED INFORMED DEALER MANY TIMES FOR THE TICKING HEARD IN THE VEHICLE SINCE THE VEHICLE AT THE TIME PURCHASE. UPDATED 03/04/08 *TR
NHTSA ODI #10208345
80,000 miles · Oct 17, 2007
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE DRIVING BETWEEN 3-5 MPH, THE VEHICLE REQUIRED INCREASED STOPPING DISTANCE. THE CONTACT WAS AFRAID THAT HE MIGHT STRIKE A PEDESTRIAN BECAUSE THE VEHICLE DOES NOT STOP WHEN THE BRAKE PEDAL IS DEPRESSED. THE FAILURE HAS BEEN OCCURRING FOR TWO MONTHS AND THE ABS WAS DISCONNECTED. …
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE DRIVING BETWEEN 3-5 MPH, THE VEHICLE REQUIRED INCREASED STOPPING DISTANCE. THE CONTACT WAS AFRAID THAT HE MIGHT STRIKE A PEDESTRIAN BECAUSE THE VEHICLE DOES NOT STOP WHEN THE BRAKE PEDAL IS DEPRESSED. THE FAILURE HAS BEEN OCCURRING FOR TWO MONTHS AND THE ABS WAS DISCONNECTED. THE RECALL REPAIR FOR NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK) WAS PREVIOUSLY PERFORMED ON THE VEHICLE. THE DEALER STATED THAT THE ROTORS NEEDED TO BE REPLACED AT THE COST OF $1,300. THE CURRENT MILEAGE WAS 82,000 AND FAILURE MILEAGE WAS 80,000.
NHTSA ODI #10206022
150,000 miles · Aug 31, 2007
Service Brakes, Hydraulic
FAILURE OF THE WHEEL SPEED SENSOR DUE TO CORROSION CAUSING UNWANTED ANTI-LOCK BRAKE SYSTEM ACTIVATION. NHTSA RECALL # 05V379000 DESCRIBES THIS VERY CONDITION, BUT I WAS TOLD MY TRUCK DID NOT QUALIFY FOR THIS RECALL AFTER A DEALER SEARCH OF MY VIN NUMBER. MY TRUCK HOWEVER FALLS WITHIN THE YEAR, MODEL AND LOCATIONS DESCRIBED IN TH…
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FAILURE OF THE WHEEL SPEED SENSOR DUE TO CORROSION CAUSING UNWANTED ANTI-LOCK BRAKE SYSTEM ACTIVATION. NHTSA RECALL # 05V379000 DESCRIBES THIS VERY CONDITION, BUT I WAS TOLD MY TRUCK DID NOT QUALIFY FOR THIS RECALL AFTER A DEALER SEARCH OF MY VIN NUMBER. MY TRUCK HOWEVER FALLS WITHIN THE YEAR, MODEL AND LOCATIONS DESCRIBED IN THE RECALL. *JB
NHTSA ODI #10201604
75,000 miles · Aug 27, 2007
Air BagsService Brakes, HydraulicStructureCrash
TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500 HD. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE FRONT END OF THE VEHICLE WAS COMPLETELY DESTROYED. A POLICE REPORT WAS FILED. THE AIR BAGS FAILED TO DEPLOY. THE VEHICLE WAS TOWED AND IS CURRENTLY AT THE BODY SHOP. HE STATED THAT GM IS GIVING H…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500 HD. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE FRONT END OF THE VEHICLE WAS COMPLETELY DESTROYED. A POLICE REPORT WAS FILED. THE AIR BAGS FAILED TO DEPLOY. THE VEHICLE WAS TOWED AND IS CURRENTLY AT THE BODY SHOP. HE STATED THAT GM IS GIVING HIM THE RUN AROUND. THE CURRENT AND FAILURE MILEAGES WERE 75,000. THE CONSUMER STATED SPOKE WITH DEALER, THERE HAVE BEEN 4 RECALLS THAT WERE ISSUED AND HE WAS NOT NOTIFIED SUCH AS TAILGATE, AIRBAG, FRONT BRAKE PIPE WITH BODY CROSS SEALS, AND FRONT BRAKE HOSE ABRASION. UPDATED 09/10/07 *TR
NHTSA ODI #10200871
98,000 miles · Dec 10, 2006
Service Brakes, Hydraulic
WHEN I APPLY BRAKES ON DRY PAVEMENTS THE ANTI LOCK BRAKING PREVENTS ME FROM STOPPING. THE BRAKE PEDAL IS FORCED UP WHEN I APPLY PRESSURE CAUSING ME TO PUSH REAL HARD FOR THE VEHICLE TO STOP. THIS OCCURS VERY OFTEN WHEN THERE IS BUMPS IN THE ROAD THAT MY TIRES ARE ROLLING OVER AS I APPLY MY BRAKES CAUSING FOR INCREASED STOPPING …
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WHEN I APPLY BRAKES ON DRY PAVEMENTS THE ANTI LOCK BRAKING PREVENTS ME FROM STOPPING. THE BRAKE PEDAL IS FORCED UP WHEN I APPLY PRESSURE CAUSING ME TO PUSH REAL HARD FOR THE VEHICLE TO STOP. THIS OCCURS VERY OFTEN WHEN THERE IS BUMPS IN THE ROAD THAT MY TIRES ARE ROLLING OVER AS I APPLY MY BRAKES CAUSING FOR INCREASED STOPPING DISTANCE. *NM
NHTSA ODI #10175718
74,500 miles · Nov 28, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE TRAVELING VARIOUS SPEEDS ON DRY NORMAL ROAD CONDITIONS, THE ANTILOCK BRAKING SYSTEM ACTIVATED AND PUMPED CONTINUOUSLY WHEN THE BRAKES WERE APPLIED. SHORTLY AFTER, THE ABS WARNING LIGHT ILLUMINATED. THE FAILURE OCCURRED WHILE CRUISING. THERE WERE NO WARNINGS PRIOR TO THE INCIDENT. A NHTSA RECALL …
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DT*: THE CONTACT STATED WHILE TRAVELING VARIOUS SPEEDS ON DRY NORMAL ROAD CONDITIONS, THE ANTILOCK BRAKING SYSTEM ACTIVATED AND PUMPED CONTINUOUSLY WHEN THE BRAKES WERE APPLIED. SHORTLY AFTER, THE ABS WARNING LIGHT ILLUMINATED. THE FAILURE OCCURRED WHILE CRUISING. THERE WERE NO WARNINGS PRIOR TO THE INCIDENT. A NHTSA RECALL REGARDING THE SPEED SENSORS, WAS PERFORMED TWO WEEKS PRIOR TO THE INCIDENT. THE VEHICLE WAS TAKEN TO THE DEALER WHO DETERMINED THAT BOTH PROBLEMS WERE NOT RELATED, AND A DIAGNOSTIC TEST DISPLAYED THAT THE ELECTRONIC CONTROL MODULE WAS FAULTY AND WOULD NEED TO BE REPLACED. THERE WERE NO REPAIRS MADE. THE CONTACT REMOVED THE FUSE THAT SUPPLIED POWER TO THE ELECTRONIC CONTROL MODULE IN THE MEAN TIME, WHICH DEACTIVATED THE ABS SYSTEM. THE CONTACT PLANNED TO FILE A COMPLAINT WITH THE MANUFACTURER AFTER FILING A COMPLAINT WITH THE NHTSA. UPDATED 1/19/2007 -*NM
NHTSA ODI #10174566
86,000 miles · Sep 27, 2006
Service Brakes, Hydraulic
ON 9-25-06 I WAS DRIVING TO WORK AND LOST MY BRAKES . AFTER STOPPING I NOTICED BRAKE FLUID LEAKING FROM UNDER MY PICKUP .TOOK THE TRUCK TO THE DEALER AND WAS TOLD THE HYDRAULIC BRAKE LINE WAS CORRODED FROM THE FRONT OF THE TRUCK TO THE BACK .HAVING BRAKE LINE REPLACED . *NM
NHTSA ODI #10169452
91,000 miles · Jun 20, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE DRIVING 25MPH THE ABS LIGHT ILLUMINATED. THE VEHICLE WAS PULLED OFF THE ROAD WITHOUT INCIDENT. THE BRAKE FLUID WAS CHECKED AND THEN THE VEHICLE WAS DRIVEN TO THE CONTACT RESIDENTS. WHEN THE VEHICLE WAS TUNED OFF, THE ABS MODULATOR WAS OBSERVED TO BE STILL RUNNING. THE FUSE TO THE MODULATOR WAS …
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DT*: THE CONTACT STATED WHILE DRIVING 25MPH THE ABS LIGHT ILLUMINATED. THE VEHICLE WAS PULLED OFF THE ROAD WITHOUT INCIDENT. THE BRAKE FLUID WAS CHECKED AND THEN THE VEHICLE WAS DRIVEN TO THE CONTACT RESIDENTS. WHEN THE VEHICLE WAS TUNED OFF, THE ABS MODULATOR WAS OBSERVED TO BE STILL RUNNING. THE FUSE TO THE MODULATOR WAS DISCONNECTED AND TAKEN OUT. THE DEALER STATED THE ABS MODULATOR NEEDED TO BE REPLACED. THE MANUFACTURER HAS NOT BEEN
NHTSA ODI #10160296
68,000 miles · Nov 1, 2005
Service Brakes, Hydraulic
WE HAVE SYMPTOMS OF THE GMC TRUCK RECALL INL 05V379000 . WE HAVE SAFETY CONCERNS BECAUSE OUR TRUCK FAILS TO STOP PROPERLY AND WE CONCERNED THIS WILL ULTIMATELY CAUSE AN ACCIDENT. WE TOOK OUR VEHICLE IN FOR DIAGNOSTICS AT BROOKFIELD PONTIAC-GMC TRUCK DEALER. DIAGNOSTICS HAS DETERMINED THAT WE INDEED HAVE THE FAILURES DEFINED IN …
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WE HAVE SYMPTOMS OF THE GMC TRUCK RECALL INL 05V379000 . WE HAVE SAFETY CONCERNS BECAUSE OUR TRUCK FAILS TO STOP PROPERLY AND WE CONCERNED THIS WILL ULTIMATELY CAUSE AN ACCIDENT. WE TOOK OUR VEHICLE IN FOR DIAGNOSTICS AT BROOKFIELD PONTIAC-GMC TRUCK DEALER. DIAGNOSTICS HAS DETERMINED THAT WE INDEED HAVE THE FAILURES DEFINED IN RECALL 05V379000 . WE ARE INFORMED WISCONSIN HAS BEEN LEFT OUT OF THIS RECALL. OUR NEIGHBORING STATES SUCH AS ILLINOIS AND MICHIGAN HOWEVER ARE INCLUDED. WE FEEL GMC HAS LEFT OUR SAFETY AT CHANCE AND FEEL THIS IS A LEGITIMATE COMPLAINT THAT GMC NEEDS TO INCLUDE ANY CONSUMER THAT HAS THIS SAFTEY ISSUE DEFINED IN 05V379000 . WE ARE FILING THIS COMPLAINT AS A RECORD FOR WHEN, AND IF THIS SAFETY ISSUE, CAUSES AN ACCIDENT AND BODILY HARM OR WORSE. AS WE CAN TESTIFY WISCONSIN RESIDENTS ARE SEEING THIS SAFETY ISSUE DEFINED IN THE RECALL 05V379000 AND OUR SAFETY SHOULD BE ADDRESSED BY THE GMC CORPORATION AS IT HAS BEEN BY OTHER STATES SURROUNDING US. *NM
NHTSA ODI #10141461
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.