NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
151 reportsClear category filter100,000 miles · Jul 2, 2012
Fuel System, GasolineService BrakesService Brakes, Hydraulic
UPON STARTING THE VEHICLE AND DEPRESSING THE BRAKES, THE BRAKES WENT TO THE FLOOR. UPON INSPECTION FROM A MECHANIC, IT WAS NOTED THAT BOTH BRAKE LINES WERE ROTTED (ONE WAS ROTTED ALL THE WAY THROUGH CAUSING THE FLUID TO LEAK FROM THE LINE). WE WERE ALSO TOLD THAT THE GAS LINE AND CALIPER HAD SEVERE ROTTING. UPON MY RESEARCH, THI…
Read full complaint
UPON STARTING THE VEHICLE AND DEPRESSING THE BRAKES, THE BRAKES WENT TO THE FLOOR. UPON INSPECTION FROM A MECHANIC, IT WAS NOTED THAT BOTH BRAKE LINES WERE ROTTED (ONE WAS ROTTED ALL THE WAY THROUGH CAUSING THE FLUID TO LEAK FROM THE LINE). WE WERE ALSO TOLD THAT THE GAS LINE AND CALIPER HAD SEVERE ROTTING. UPON MY RESEARCH, THIS SEEMS TO BE A VERY COMMON PROBLEM WITH CHEVROLET TRUCKS. I HOPE THIS WILL BE RESOLVED SO ADDITIONAL CHEVROLET OWNERS DO NOT HAVE SEVERE ACCIDENTS DUE TO THESE ISSUES. MY HUSBAND AND 4 YEAR OLD SON HAD TO WALK QUITE A FEW MILES IN 95 DEGREE WEATHER! THIS IS A SAFETY ISSUE AND I HOPE MY COMPLAINT WILL HELP FURTHER THE INVESTIGATION. *JS *TR
NHTSA ODI #10464021
56,232 miles · Jun 14, 2012
Service Brakes, Hydraulic
WHILE DRIVING AT APPROXIMATELY 15 MPH I APPLIED THE BRAKES TO STOP AND THE BRAKE PEDAL WENT TO THE FLOOR. I IMMEDIATELY USED THE EMERGENCY BRAKE TO STOP. I WAS RIGHT AROUND THE CORNER FROM MY RESIDENCE SO I DROVE THE TRUCK BACK HOME USING THE EMERGENCY BRAKE TO STOP. WHEN I GOT HOME I CHECKED THE BRAKE MASTER CYLINDER AND THE …
Read full complaint
WHILE DRIVING AT APPROXIMATELY 15 MPH I APPLIED THE BRAKES TO STOP AND THE BRAKE PEDAL WENT TO THE FLOOR. I IMMEDIATELY USED THE EMERGENCY BRAKE TO STOP. I WAS RIGHT AROUND THE CORNER FROM MY RESIDENCE SO I DROVE THE TRUCK BACK HOME USING THE EMERGENCY BRAKE TO STOP. WHEN I GOT HOME I CHECKED THE BRAKE MASTER CYLINDER AND THE FLUID WAS LOW. I REFILLED THE MASTER CYLINDER AND HAD MY SON PUMP THE BRAKES AS I WAS UNDER THE TRUCK LOOKING FOR ANY VISIBLE FLUID LEAKS. ALL OF THE BRAKE LINES WERE SEVERELY CORRODED AND THE DRIVERS SIDE REAR BRAKE LINE HAD RUPTURED NEAR THE FRAME RAIL. AFTER REPAIRING THE BRAKE LINE AT THE POINT OF RUPTURE WE RE-FILLED THE MASTER CYLINDER AND BEGAN TO BLEED THE BRAKES AND THE BRAKE LINE RUPTURED AGAIN AT A POINT UNDER THE DRIVERS FRONT SEAT.
NHTSA ODI #10461751
90,500 miles · May 9, 2012
Service Brakes, Hydraulic
BRAKES FAILED WILE DRIVING, HAD TO USE MECHANICAL EMERGENCY BRAKE TO STOP. COMPLETED STOP ACROSS TWO TRAFFIC LANES, ON COMING TRAFFIC STOPPED IN TIME TO AVOID ACCIDENT. BRAKE LINES "RUSTED" THROUGH AND BLOW OUT LETTING ALL BRAKE FLUID SPRAYED OUT ONTO STREET. *TR
NHTSA ODI #10457956
79,000 miles · Apr 28, 2012
Service Brakes, Hydraulic
MY BRAKE PEDAL WENT TO THE FLOOR AS I WAS BACKING MY TRUCK UP TO HOOK UP MY BOAT. WHEN I GOT OUT OF MY TRUCK THERE WAS A PUDDLE OF BRAKE FLUID UNDER THE TRUCK ON THE DRIVERS SIDE. WHEN I INSPECTED WHERE THE LEAK WAS COMING FROM IT WAS FROM SEVERELY RUSTED BRAKE LINE THAT BURST. THE OTHER BRAKE LINES ARE RUSTED AS WELL. I HAVE N…
Read full complaint
MY BRAKE PEDAL WENT TO THE FLOOR AS I WAS BACKING MY TRUCK UP TO HOOK UP MY BOAT. WHEN I GOT OUT OF MY TRUCK THERE WAS A PUDDLE OF BRAKE FLUID UNDER THE TRUCK ON THE DRIVERS SIDE. WHEN I INSPECTED WHERE THE LEAK WAS COMING FROM IT WAS FROM SEVERELY RUSTED BRAKE LINE THAT BURST. THE OTHER BRAKE LINES ARE RUSTED AS WELL. I HAVE NO BRAKES WHAT SO EVER. I WOULD NOT HAVE BEEN ABLE TO STOP IF THIS HAD HAPPENED WHILE DRIVING ESPECIALLY TOWING MY BOAT. *TR
NHTSA ODI #10456778
51,000 miles · Apr 28, 2012
Service Brakes, Hydraulic
I WAS COMING TO A VERY SLOW STOP WHEN THE BRAKE PEDAL WENT ALMOST TO THE FLOOR. I TESTED THE BRAKE SEVERAL TIMES WHILE MOVING VERY SLOWLY, AND THE PEDAL CONTINUED TO GO TO THE FLOOR WITH A SWOOSHING SOUND. I HAD SOMEONE CHECK UNDERNEATH THE VEHICLE WHILE I DEPRESSED THE BRAKE PEDAL, AND HE CONFIRMED THAT BRAKE FLUID WAS SHOOTI…
Read full complaint
I WAS COMING TO A VERY SLOW STOP WHEN THE BRAKE PEDAL WENT ALMOST TO THE FLOOR. I TESTED THE BRAKE SEVERAL TIMES WHILE MOVING VERY SLOWLY, AND THE PEDAL CONTINUED TO GO TO THE FLOOR WITH A SWOOSHING SOUND. I HAD SOMEONE CHECK UNDERNEATH THE VEHICLE WHILE I DEPRESSED THE BRAKE PEDAL, AND HE CONFIRMED THAT BRAKE FLUID WAS SHOOTING ALL OVER. MY TRUCK IS 9 YEARS OLD BUT IT HAS ONLY 50,000 MILES, THE ORIGINAL TIRES AND HAS HAD ONLY 2 BRAKES REPLACED JUST RECENTLY I BELIEVE THAT IT IS PREMATURE FOR THE BRAKE LINES TO HAVE SUFFERED A COMPLETE BLOWOUT. MY FORMER CHEVY TRUCK WHICH I HAD FOR 13 YEARS HAD NO PROBLEM WITH BRAKE LINES. *TR
NHTSA ODI #10456772
72,000 miles · Apr 24, 2012
Service Brakes, Hydraulic
WHEN I GOT HOME TODAY I NOTICED A CLEAR PUDDLE UNDER THE DRIVERS SIDE REAR AXLE. UPON INVESTIGATING THE UNDERSIDE OF THE TRUCK I SPOTTED A HOLE IN THE BRAKE LINE. I FOLLOWED THE LINE TOWARD THE FRONT OF THE TRUCK AND FOUND SEVERAL PLACES WHERE THE LINE WAS SEVERALLY CORRODED. THIS IS PLAINLY THE RESULT OF INFERIOR MATERIALS USE…
Read full complaint
WHEN I GOT HOME TODAY I NOTICED A CLEAR PUDDLE UNDER THE DRIVERS SIDE REAR AXLE. UPON INVESTIGATING THE UNDERSIDE OF THE TRUCK I SPOTTED A HOLE IN THE BRAKE LINE. I FOLLOWED THE LINE TOWARD THE FRONT OF THE TRUCK AND FOUND SEVERAL PLACES WHERE THE LINE WAS SEVERALLY CORRODED. THIS IS PLAINLY THE RESULT OF INFERIOR MATERIALS USED BY GM IN THEIR VEHICLES. *TR
NHTSA ODI #10456400
49,892 miles · Apr 11, 2012
Service Brakes, Hydraulic
RUSTED BRAKE LINE RUPTURED WHILE BRAKING AND CAUSED IMMEDIATE LOSS OF BRAKING CONTROL. THE RUPTURED BRAKE LINE IS GROUPED TIGHTLY WITH TWO OTHER LINES, THUS IT IS CAPTURING SALT & WATER CAUSING CORROSION. LUCKILY, I WAS ABLE TO ACTUATE PARKING BRAKE TO AVOID CRASH AND INJURIES TO OTHERS. *TR
NHTSA ODI #10454896
13,000 miles · Mar 6, 2012
Service Brakes, Hydraulic
FAILURE OF THE BRAKE LINES DUE TO BEING RUSTED OUT. *TR
NHTSA ODI #10450445
55,000 miles · Feb 9, 2012
Service Brakes, Hydraulic
I BOUGHT A USED CHEVROLET, SILVERADO, 2003, WITH 55,000 MILES FROM THIS DEALER. WITHIN ONE WEEK, IT SUFFERED A BRAKE FAILURE. IT WAS TOWED BACK, REPLACED THE LEAKING TUBING, AND RETURNED TO SERVICE. ABOUT 4 WEEKS LATER, ANOTHER BRAKE FAILURE, TOWED BACK, AND THIS TIME EVERY STEEL BRAKE LINE WAS REPLACED. THIS TRUCK HAD BEEN GARA…
Read full complaint
I BOUGHT A USED CHEVROLET, SILVERADO, 2003, WITH 55,000 MILES FROM THIS DEALER. WITHIN ONE WEEK, IT SUFFERED A BRAKE FAILURE. IT WAS TOWED BACK, REPLACED THE LEAKING TUBING, AND RETURNED TO SERVICE. ABOUT 4 WEEKS LATER, ANOTHER BRAKE FAILURE, TOWED BACK, AND THIS TIME EVERY STEEL BRAKE LINE WAS REPLACED. THIS TRUCK HAD BEEN GARAGED BY THE ORIGINAL OWNER AND WAS IN EXCELLENT CONDITION, EXCEPT FOR THE STEEL BRAKE LINES.(VIN-[XXX] THIS ISSUE IS NOT ONLY VERY DANGEROUS, BUT BECAUSE IT IS BENEATH THE VEHICLE, IT IS VERY HARD TO DETECT BEFORE HAND. THIS ISSUE NEEDS VISIBILITY AND SAFETY ALERTS SO MECHANICS AND AUTOMOTIVE AND TRUCK DEALERSHIPS CAN PERFORM MORE THOROUGH INSPECTIONS TO PRECLUDE FATAL ACCIDENTS. IN CONVERSATIONS WITH OTHER MECHANICS, THEY ARE SEEING AN INCREASED FREQUENCY OF CORRODED STEEL BRAKE LINES. I CAN GET CORRODED BRAKE LINES, IF NEEDED FOR EXAMINATION. BUT WE NEED MORE ATTENTION FOCUSED ON THE IMMEDIATE SAFETY CONCERN & THEN WE NEED TO STOP USING THE DE-ICERS OR REQUIRE VEHICLE BUILDERS TO USE CORROSION RESISTANT STEEL TUBING (SUCH AS STAINLESS STEEL TUBING).I KNOW IT IS MORE EXPENSIVE! I HOPE YOU CAN GET THE ?BALL? ROLLING. LET ME KNOW WHAT MORE YOU NEED / WANT. KIND REGARDS, [XXX] OFFICE:[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10447633
65,000 miles · Jan 24, 2012
Service Brakes, Hydraulic
SLOWING FOR A RED LIGHT IN 2003 CHEVY SILVERADO 1500, APPLIED BRAKES AND FOOT WENT DOWN TO THE FLOOR. NO BRAKES! AT A REPAIR SHOP, TRUCK WAS PUT ON A LIFT AND THE MECHANIC SHOWED ME HOW ALL THE BRAKE LINES WERE CORRODED AND LEAKING. TRUCK IS WELL TAKEN CARE OF AND NOT USED OFF-ROAD OR IN ANY WAY THAT WOULD CAUSE THIS CONDITION…
Read full complaint
SLOWING FOR A RED LIGHT IN 2003 CHEVY SILVERADO 1500, APPLIED BRAKES AND FOOT WENT DOWN TO THE FLOOR. NO BRAKES! AT A REPAIR SHOP, TRUCK WAS PUT ON A LIFT AND THE MECHANIC SHOWED ME HOW ALL THE BRAKE LINES WERE CORRODED AND LEAKING. TRUCK IS WELL TAKEN CARE OF AND NOT USED OFF-ROAD OR IN ANY WAY THAT WOULD CAUSE THIS CONDITION. APPARENTLY IT IS A DEFECT AND COME TO FIND OUT AFTER RESEARCHING THE PROBLEM ONLINE, THAT THERE ARE MANY COMPLAINTS CONCERNING THIS BRAKE CORROSIAN ON CHEVY TRUCKS AND DRIVERS HAVE HAD NUMEROUS ACCIDENTS BECAUSE OF IT. NO RECALLS ON IT YET. HOW MANY PEOPLE HAVE TO BE KILLED BEFORE CHEVY FESSES UP AND THERE IS A RECALL ON THESE TRUCKS? *TR
NHTSA ODI #10445082
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.
Illustration