NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
151 reportsClear category filter57,840 miles · Aug 9, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE BRAKE PEDAL FAILED TO ENGAGE WHEN HE ATTEMPTED TO SHIFT INTO DRIVE GEAR OUT OF THE PARK POSITION. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER WHERE THE RUPTURED FRONT BRAKE LINES WERE REPLACED. THE FAILURE DID NOT RECUR. THE FAILURE MILEAGE WAS 57,840 AND THE CURRENT MIL…
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TL*THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE BRAKE PEDAL FAILED TO ENGAGE WHEN HE ATTEMPTED TO SHIFT INTO DRIVE GEAR OUT OF THE PARK POSITION. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER WHERE THE RUPTURED FRONT BRAKE LINES WERE REPLACED. THE FAILURE DID NOT RECUR. THE FAILURE MILEAGE WAS 57,840 AND THE CURRENT MILEAGE WAS 62,000.
NHTSA ODI #10348250
170,863 miles · Aug 5, 2010
Service Brakes, HydraulicCrash
TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT WAS REVERSING FROM A RESIDENTIAL GARAGE ON AN INCLINE AT 2 MPH AND DEPRESSING THE BRAKES. THE BRAKE PEDAL FELL MUCH FARTHER INTO THE FLOORBOARD THAN USUAL AND THE VEHICLE WOULD NOT STOP. THE CONTACT ATTEMPTED TO UTILIZE THE EMERGENCY BRAKE BUT TO NO AVAIL. THE CON…
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TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT WAS REVERSING FROM A RESIDENTIAL GARAGE ON AN INCLINE AT 2 MPH AND DEPRESSING THE BRAKES. THE BRAKE PEDAL FELL MUCH FARTHER INTO THE FLOORBOARD THAN USUAL AND THE VEHICLE WOULD NOT STOP. THE CONTACT ATTEMPTED TO UTILIZE THE EMERGENCY BRAKE BUT TO NO AVAIL. THE CONTACT DROVE INTO A DITCH TO AVOID A CRASH. THE CONTACT FOUND THAT THE BRAKE LINE WAS RUSTED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSIS OR REPAIRS. THE FAILURE AND CURRENT MILEAGES WERE 170,863.
NHTSA ODI #10347412
78,000 miles · Aug 3, 2010
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT WAS BRAKING FROM APPROXIMATELY 55 MPH WHEN THE BRAKE PEDAL FELL INTO THE FLOORBOARD. THE DEALER ADVISED THAT THE BRAKE LINE WAS CORRODED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER DID NOT OFFER ANY ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 78,000 AND THE …
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TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT WAS BRAKING FROM APPROXIMATELY 55 MPH WHEN THE BRAKE PEDAL FELL INTO THE FLOORBOARD. THE DEALER ADVISED THAT THE BRAKE LINE WAS CORRODED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER DID NOT OFFER ANY ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 78,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 78,300.
NHTSA ODI #10346986
87,000 miles · Jul 26, 2010
Service Brakes, Hydraulic
LOSS OF BRAKING ABILITY. BRAKELINES RUSTED OUT. *TR
NHTSA ODI #10345226
94,000 miles · Jul 25, 2010
Service Brakes, Hydraulic
RUSTED OUT BRAKE LINES FAILED FUEL LINES AND POWER STEERING LOOK BAD ALSO. *TR
NHTSA ODI #10345131
65,000 miles · Jun 22, 2010
Service Brakes, Hydraulic
BRAKES HAVE BEEN SPONGY FROM THE TIME I PURCHASED AND WAS TOLD THIS IS NORMAL. I HAVE REPLACED BRAKE PADS AND ROTORS FRONT AND REAR ABOUT 3 TIMES SINCE BUYING TRUCK. TRUCK HAS ALWAYS HAS SLOW RESPONSE TIME TO STOP AGAIN TOLD THIS IS NORMAL. TRUCK HAS ABOUT 65,000 MILES AND UNDERSIDE LOOKS LIKE A RUST BUCKET. THE PROBLEM I AM HAV…
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BRAKES HAVE BEEN SPONGY FROM THE TIME I PURCHASED AND WAS TOLD THIS IS NORMAL. I HAVE REPLACED BRAKE PADS AND ROTORS FRONT AND REAR ABOUT 3 TIMES SINCE BUYING TRUCK. TRUCK HAS ALWAYS HAS SLOW RESPONSE TIME TO STOP AGAIN TOLD THIS IS NORMAL. TRUCK HAS ABOUT 65,000 MILES AND UNDERSIDE LOOKS LIKE A RUST BUCKET. THE PROBLEM I AM HAVING NOW IS ABS LIGHT COMES ON AND OFF,PULSATING BRAKE PETAL AND ABS DOES NOT WORK PLUS THERE IS A LONGER STOPPING DISTANCE .TOLD ABS SENSORS ARE BAD AND NEED TO BE REPLACED AT A COST OF ABOUT $800 - $1000 DOLLARS AGAIN NORMAL?. I BELIEVE THIS IS A SAFETY ISSUE FOR THE CONSUMER AND GENERAL MOTORS SAY THEY DON'T HAVE ENOUGH COMPLAINTS TO WARRANT A RECALL. HOW MANY PEOPLE HAVE TO DIE OR BE INJURED BEFORE SOMETHING IS DONE. IT IS TIME FOR THESE CAR MANUFACTURES TO BE ACCOUNTABLE AND MAKE THESE VEHICLES SAFE. *TR
NHTSA ODI #10339523
30,000 miles · Jun 17, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2003 CHEVROLET SILVERADO. WHILE ATTEMPTING TO BRAKE FROM ANY SPEED, THE BRAKE PEDAL WOULD BEGIN TO VIBRATE ABNORMALLY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THERE WERE NO PRIOR WARNINGS. THE CURRENT AND FAILURE MILEAGES WERE 30,000.
NHTSA ODI #10336881
100,000 miles · Jun 13, 2010
Service Brakes, HydraulicStructure
2000 TO 2005 GM TRUCKS EXTRA CABS ROCKER PANELS RUSTING AWAY REAR BUMPER RUST AWAY AN BRAKE LINES RUSTING. THIS IS A SAFETY ISSUE IT FAILS STATE INSPECTION AN THE DEALERS NO ABOUT IT HAVE CONTACTED A FEW DEALERS AN HAVE BEEN TOLD OFF THE RECORD THAT IT A DESIGN FAULT FROM GM. THEIR ARE MANY JUNK YARDS WHO DON'T HAVE BUMPERS FOR …
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2000 TO 2005 GM TRUCKS EXTRA CABS ROCKER PANELS RUSTING AWAY REAR BUMPER RUST AWAY AN BRAKE LINES RUSTING. THIS IS A SAFETY ISSUE IT FAILS STATE INSPECTION AN THE DEALERS NO ABOUT IT HAVE CONTACTED A FEW DEALERS AN HAVE BEEN TOLD OFF THE RECORD THAT IT A DESIGN FAULT FROM GM. THEIR ARE MANY JUNK YARDS WHO DON'T HAVE BUMPERS FOR THESE TRUCKS BECAUSE OF THEM RUSTING AWAY HAVE CHECKED JUST TO MAKE SURE IT WASN'T JUST ME BUT ITS A PROBLEM WITH ALL THESE TRUCKSTHAT ARE EXTRA CABS. 90 PERCENT ARE THE 1500 PICKUPS BUT YOU DON'T SEE THIS PROBLEM WITH REGULAR CABS. PLEASE LOOK INTO THIS AS FOR I HAVE TALKED TO MANY BODY SHOPS AN THEY SEE THESE TRUCKS ALL THE TIME HERE IN MAINE. PLUS I HAVE GONE IN TO THE CHEVY DEALERS TO SEE ABOUT TRADING IN THE TRUCK AN THE FIRST THING THEY GO TO IS THE ROCKER PANELS AN BRAKE LINES AN BUMPER AN THEIR COMMENTS TYPICAL GM TRUCK THEY ALL DO IT. SO THEY KNOW THEIR IS A PROBLEM WHY AINT THEY FIXING THEIR DEFECTS OR DESIGN FAULTS?? *TR
NHTSA ODI #10336016
37,700 miles · Jun 5, 2010
Service Brakes, Hydraulic
I HAVE A 2003 CHEVY SILVERADO 1500 PICKUP WITH 37,000 MILES AND I BELIEVE CHEVY IS USING INFERIOR COMPONENTS IN THE BRAKING SYSTEM . I HAD TO REPLACE THE ROTORS AT 35,000 MILES BECAUSE THEY STARTED TO RUST AND CRUMBLE. ONCE THE ROTORS STARTED TO RUST LARGE PORTIONS WOULD "FLAKE" OFF. RECENTLY ONE OF MY BRAKE LINES FAILED AND I R…
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I HAVE A 2003 CHEVY SILVERADO 1500 PICKUP WITH 37,000 MILES AND I BELIEVE CHEVY IS USING INFERIOR COMPONENTS IN THE BRAKING SYSTEM . I HAD TO REPLACE THE ROTORS AT 35,000 MILES BECAUSE THEY STARTED TO RUST AND CRUMBLE. ONCE THE ROTORS STARTED TO RUST LARGE PORTIONS WOULD "FLAKE" OFF. RECENTLY ONE OF MY BRAKE LINES FAILED AND I ROLLED THRU A STOP SIGN, LUCKILY NO ONE WAS COMING THE OTHER WAY AND IT WAS CLOSE TO MY HOUSE SO I "LIMPED" IT HOME. UPON FURTHER INSPECTION I DISCOVERED ALL OF THE BRAKES LINES WERE RUSTED AND READY TO FAIL. THE ENTIRE BRAKE PLUMBING SYSTEM ON THE TRUCK HAD TO BE REPLACED. IN ADDITION WHILE REPLACING THE BRAKE LINES I ALSO NOTICED THE FUEL LINES APPEAR TO BE IN PRETTY BAD SHAPE AND WILL PROBABLY NEED TO BE REPLACED IN THE NEAR FUTURE. I HAVE THE RUSTED BRAKE LINES, I DO NOT HAVE THE ROTORS. *TR
NHTSA ODI #10334761
24,545 miles · Jun 2, 2010
Service Brakes, Hydraulic
I HAVE A 2003 CHEVY SILVERADO WITH APPROXIMATELY 25,000 MILES THAT THE BRAKE LINES HAVE RUSTED PREMATURELY AND THE DEALER IS RECOMMENDING REPLACEMENT. PRIOR TO THIS I HAVE HAD NUMEROUS BRAKE ISSUES AND EXTENDED STOPPING DISTANCES, ROTORS WERE ALSO PREVIOUSLY REPLACED DUE TO SEVER RUST AND SPAWLING. *TR
NHTSA ODI #10334356
NHTSA investigations
3EA11001 · Brake Line Corrosion Failure
Opened Jan 5, 2011 · Closed Apr 8, 2015
Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Additional source detail variants (2)
Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Service Brakes, Hydraulic
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
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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