IllustrationEARLIER THIS YEAR HAD MONROE MUFFLER AND BRAKES REPAIR A BRAKE LINE. LAST WEEK A SECOND LINE RUSTED THROUGH. PEP BOYS STATED THREE LINES NEEDED REPLACEMENT. *TR
2003 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2003 Chevrolet Silverado 1500 do not stand out strongly from the model-year median of 525.
About this comparison →How this year compares
Owner complaints by model year
Compare all Silverado 1500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
560–25K
11025–50K
15450–75K
15275–100K
175100–150K
79150K+
726 reports with mileage · 79 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes. Review the 273 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 195 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 151 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
26 crash reports7 fire reports8 injury reports
Service Brakes complaints
273 reportsWAS COASTING DOWN A HILL AND WENT TO STEP ON THE BRAKES. THE PEDAL THEN FELT VERY SOFT. THE TRUCK PROCEEDED TO STOP AFTER SEVERAL FEET LONGER THAN NORMALLY. THE NEXT TIME I STEPPED IN THE BRAKES THE PEDAL WENT TO THE FLOOR WITH VERY, VERY LITTLE RESISTANCE. THE TRUCK HAD TO BE MANUALLY DOWNSHIFTED TO COME TO A STOP. HAD TO LIMP …
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WAS COASTING DOWN A HILL AND WENT TO STEP ON THE BRAKES. THE PEDAL THEN FELT VERY SOFT. THE TRUCK PROCEEDED TO STOP AFTER SEVERAL FEET LONGER THAN NORMALLY. THE NEXT TIME I STEPPED IN THE BRAKES THE PEDAL WENT TO THE FLOOR WITH VERY, VERY LITTLE RESISTANCE. THE TRUCK HAD TO BE MANUALLY DOWNSHIFTED TO COME TO A STOP. HAD TO LIMP THE TRUCK HOME AND ONLY LIGHTLY USE THE BRAKES. *JS
THE BRAKE LINES ARE CORRODED AND BRAKES GAVE OUT. I NARROWLY MISSED HITTING MY NEIGHBOR'S CAR. THERE WAS NO WARNING, THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR. I PUT ON THE EBRAKE. IT WAS TOWED TO THE LOCAL DEALER AND THEY CONFIRMED IT NEEDS ALL NEW BRAKE LINES. ESTIMATE IS $1215 PLUS TAX. THIS TRUCK HAS HAD ALL OF IT…
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THE BRAKE LINES ARE CORRODED AND BRAKES GAVE OUT. I NARROWLY MISSED HITTING MY NEIGHBOR'S CAR. THERE WAS NO WARNING, THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR. I PUT ON THE EBRAKE. IT WAS TOWED TO THE LOCAL DEALER AND THEY CONFIRMED IT NEEDS ALL NEW BRAKE LINES. ESTIMATE IS $1215 PLUS TAX. THIS TRUCK HAS HAD ALL OF ITS SERVICE DONE AT THE LOCAL DEALER AND IS IN VERY GOOD CONDITION. I BOUGHT IT CERTIFIED USED WITH THE EXTENDED WARRANTY. I CALLED GM AND THEY TOLD ME, "TOO BAD, IT'S OUT OF WARRANTY, NOTHING WE CAN DO". I AM VERY DISAPPOINTED SINCE THIS IS A SAFETY ISSUE!! THIS IS NOT SOME POS TRUCK. THIS IS A GOOD TRUCK AND GM KNOWS THERE IS A PROBLEM, EVEN THE DEALER TOLD ME THE PROBLEM IS KNOWN, BUT NO RECALL. VERY UPSETTING SINCE MY 2 YEAR OLD DAUGHTER WAS IN THE TRUCK WITH ME. NO BRAKES!! COME ON GM, THIS IS NOT A GOOD WAY TO FIX YOUR REPUTATION. *TR
I EXPERIENCED COMPLETE LOSS OF BRAKES WITHOUT NOTICE. FORTUNATELY I WAS DRIVING IN A NEIGHBORHOOD WITH SPEED LIMITS <20 MPH. BRAKES STARTED FEELING STRANGE WHEN I ATTEMPTED TO BRAKE. AFTER SEVERAL ATTEMPTS THE BRAKE PEDAL WENT TO THE FLOOR, I TRIED THE EMERGENCY BRAKE AND IT WENT TO THE FLOOR WITH NO SLOWING OF THE VEHICLE. I…
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I EXPERIENCED COMPLETE LOSS OF BRAKES WITHOUT NOTICE. FORTUNATELY I WAS DRIVING IN A NEIGHBORHOOD WITH SPEED LIMITS <20 MPH. BRAKES STARTED FEELING STRANGE WHEN I ATTEMPTED TO BRAKE. AFTER SEVERAL ATTEMPTS THE BRAKE PEDAL WENT TO THE FLOOR, I TRIED THE EMERGENCY BRAKE AND IT WENT TO THE FLOOR WITH NO SLOWING OF THE VEHICLE. I WAS GOING SLOW ENOUGH THAT I COULD RUB UP AGAINST THE CURB TO SLOW THE VEHICLE TO A STOP. VEHICLE TOWED TO GARAGE. MECHANIC STATED THAT COMPLETE BRAKING SYSTEM FAILED DUE TO CORROSION. THIS IS THE SECOND TIME A MECHANIC HAS COMMENTED ABOUT EXTENSIVE CORROSION IN THE UNDER CARRIAGE. LAST TIME WAS WHEN THE COMPLETE FUEL LINES NEEDED TO BE REPLACED DUE TO CORROSION. *TR
TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. WHILE DRIVING 45 MPH, THE SERVICE BRAKE SYSTEM WARNING LIGHT ILLUMINATED AND THE VEHICLE FAILED TO RESPOND WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE BRAKE LINES NEEDED TO BE REPLACED. THE VEHICLE WA…
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TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. WHILE DRIVING 45 MPH, THE SERVICE BRAKE SYSTEM WARNING LIGHT ILLUMINATED AND THE VEHICLE FAILED TO RESPOND WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE BRAKE LINES NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.
I WAS DRIVING MY 2003 SILVERADO 1500 DOWN A 3 LANE WIDE ROAD IN CONGESTED TRAFFIC UP TO A STOPLIGHT AT SPEEDS RANGING FROM 15-45 MPH. I NOTICED THAT MY BREAKS FELT DIFFERENT THAN THEY NORMALLY DID, REQUIRING ME TO DEPRESS THE BRAKE PEDAL ALL THE WAY TO THE FLOOR TO GET "MODEST" BREAKING, NOT NEARLY THE NORMAL EMERGENCY/QUICK BRE…
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I WAS DRIVING MY 2003 SILVERADO 1500 DOWN A 3 LANE WIDE ROAD IN CONGESTED TRAFFIC UP TO A STOPLIGHT AT SPEEDS RANGING FROM 15-45 MPH. I NOTICED THAT MY BREAKS FELT DIFFERENT THAN THEY NORMALLY DID, REQUIRING ME TO DEPRESS THE BRAKE PEDAL ALL THE WAY TO THE FLOOR TO GET "MODEST" BREAKING, NOT NEARLY THE NORMAL EMERGENCY/QUICK BREAKING ACTION I'M USED TO. AFTER SLOWLY COMING TO A STOP, I NOTICED THAT IF I HELD THE BRAKE PEDAL AT THE SAME PLACE/SAME PRESSURE, THE TRUCK STARTED ROLLING AGAIN! I EVENTUALLY HAD TO PUT THE TRUCK IN NEUTRAL TO AVOID A COLLISION WITH THE VEHICLE IN FRONT OF ME. AFTER 2 STOPLIGHTS WITH THESE SIMILAR SLOW BRAKING CONDITIONS, THE RED "BRAKE" LIGHT ON THE DASH LIGHT LIT UP AND A MESSAGE OF "SERVICE BRAKE SYSTEM" POPPED UP ON THE DASH PANEL. WITH SEVERAL CLOSE CALLS OF NEARING RUNNING INTO THE VEHICLE IN FRONT OF ME, I PULLED OFF THE MAIN HIGHWAY TO A LOCAL MIDAS LOCATION, AND THEIR TECHNICIANS EXAMINED THE TRUCK IN THE PARKING LOT. THE HOOD STARTED SMOKING FROM UNDERNEATH AND MY FRONT DRIVERS SIDE WHEEL. MY FRAME NEAR THE FRONT DRIVERS SIDE WAS COMPLETELY SOAKED IN BREAK FLUID, AND WHEN WE PRESSED DOWN ON THE BREAKS, WE COULD VISUALLY SEE THE LEAK COMING FROM THE RUSTED THROUGH BREAK LINES. THE SMOKE WAS FROM THE LEAKING BRAKE FLUID, AND COULD HAVE STARTED A FIRE. I HAVE NEVER SEEN RUST DO SO MUCH DAMAGE AND CREATE SUCH A SAFETY HABIT IN MY 13 YEARS OF DRIVING AND MAINTAINING MY VEHICLES. THE STEEL BRAKE LINES WERE COMPLETELY CAKED IN RUST, AND HAD CLEARLY BURST WHILE DRIVING THE VEHICLE. THE MANAGER TOLD HE WOULD NOT RECOMMEND ME TO CONTINUE TO DRIVE THE VEHICLE, WITH FEAR TO MY SAFETY. IF I WAS TRAVELING AT A HIGHER SPEED, TOWING A GREATER WEIGHT, OR HAD TO MAKE A QUICKER STOP...I HAVE NO DOUBT IN MY MIND I WOULD HAVE CAUSED AN ACCIDENT, INJURY OR DEATH DUE TO THIS SERIOUS SAFETY DEFECT. I HAVE NEVER FELT THIS AFRAID TO DRIVE A MOTOR VEHICLE. *TR
WHILE DRIVING THROUGH SUBDIVISION APPROX. 20 MPH I APPLIED BRAKES. PEDAL DROPPED TO FLOOR, SUDDEN LOSS OF BRAKES WITH NO WARNING. BRAKE FLUID IS LEAKING FROM DRIVER SIDE LINES REAR OF MODULE. THIS IS A KNOWN PROBLEM DUE TO GALVANIC CORROSION. WHY HAS THERE NOT BEEN A RECALL ?? *TR
TRAVELING 25 MILES HOME ON INTERSTATE VAN HAD BEEN CUTTING OUT IF I PULL OVER STOP WAIT, CAN RE-START AND GO A WHILE. CANT PREDICT IT SEEMED TO STAY RUNNING IF I WENT FASTER BIG MISTAKE MOVED TO PASS IT QUIT, AT INTERSTATE SPEEDS ALMOST HAD TO GO INTO MEDIUM AFTER YELLING AND WAVING ARMS AND PRAYING I GOT BACK INTO THE RIGHT LA…
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TRAVELING 25 MILES HOME ON INTERSTATE VAN HAD BEEN CUTTING OUT IF I PULL OVER STOP WAIT, CAN RE-START AND GO A WHILE. CANT PREDICT IT SEEMED TO STAY RUNNING IF I WENT FASTER BIG MISTAKE MOVED TO PASS IT QUIT, AT INTERSTATE SPEEDS ALMOST HAD TO GO INTO MEDIUM AFTER YELLING AND WAVING ARMS AND PRAYING I GOT BACK INTO THE RIGHT LANE PULLED OFF ONTO SHOULDER AND WENT TO PIECES. IT THEN STOPPED MORE AND MORE FINALLY GOT HOME AND HAVE NOT TOUCHED IT SINCE. I HAVE BEEN READING ABOUT SIMILAR EVENTS AND IT SEEMS IT IS THE CRANKCASE POSITIONING SENSOR. I AM JUST HAPPY TO BE ALIVE. NEED TO FIX IT AND SELL IT. THANKS FOR LISTENING I AM SENIOR CITIZEN. *TR
BRAKE LINES FAILED IN 2 PLACES ON THE DRIVERS SIDE DUE TO CORROSION. RUSTED THROUGH UNDER THE DRIVERS DOOR AND AT THE DRIVERS SIDE REAR CALIPER. TRAVELING 40MPH APPLIED BRAKE TO MAKE TURN, INITIAL BRAKE RESISTANCE, THEN PEDAL WENT TO FLOOR. REMOVED FOOT AND REAPPLIED PEDAL. ABLE TO MAKE TURN, TESTED UPON STOPPING WITH TWO AD…
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BRAKE LINES FAILED IN 2 PLACES ON THE DRIVERS SIDE DUE TO CORROSION. RUSTED THROUGH UNDER THE DRIVERS DOOR AND AT THE DRIVERS SIDE REAR CALIPER. TRAVELING 40MPH APPLIED BRAKE TO MAKE TURN, INITIAL BRAKE RESISTANCE, THEN PEDAL WENT TO FLOOR. REMOVED FOOT AND REAPPLIED PEDAL. ABLE TO MAKE TURN, TESTED UPON STOPPING WITH TWO ADDITIONAL HARD STOPS WHEN GOING LESS THAT 5MPH. BOTH INSTANCES PEDAL HAD RESISTANCE. BACKED INTO DRIVEWAY TO ATTACHED TRAILER, PRESSED PEDAL TO TEST TRAILER LIGHTS, PEDAL WENT TO FLOOR AND BRAKE LIGHT WARNING ILLUMINATED. LOSS OF FLUID WAS OBSERVED ON THE STREET WHERE 2 ADDITIONAL TESTS TOOK PLACE, MAIN LOSS OF FLUID APPEARED IN DRIVEWAY DURING LIGHT TEST. *TR
WHILE DRIVING THE VEHICLE THE BRAKE PEDAL WAS PUSHED AND WENT TO THE FLOOR IN RUSH HOUR TRAFFIC. APPARENTLY THE BRAKE LINES RUPTURED DUE TO BEING RUSTED THROUGH. *TR
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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.