IllustrationI APPLIED BRAKES COMING UP TO A RED LIGHT. VEHICLE DID NOT STOP AND PEDAL PUSHED TO THE FLOOR. APPLIED E-BRAKE TO STOP AND RESUMED TO REPAIR SHOP ON OTHER SIDE OF LIGHTS. FOUND BRAKE LINE HAD PIN HOLES. *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
What owners actually said
805 reportsTHE PAINT IS PEELING OFF IN BIG SPOTS. THE TRUCK IS ALWAYS CLEAN AND WAXED. THE PAINT IS NOT STICKING TO THE PRIMER. HAVE HEARD OF OTHER GM TRUCK OWNERS SAYING THE SAME THING. JUST WANTED TO KNOW IF THERE ARE OTHER PEOPLE HAVING THE SAME TROUBLE. LOVE MY TRUCK BUT IT LOOKS RAGGED OUT. *TR
TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DECELERATING, THE ABS ERRONEOUSLY ACTIVATED. THE CONTACT STATED THAT THE FAILURE WAS ALSO PRESENT ON DRY PAVEMENT AND CAUSED AN INCREASE IN STOPPING DISTANCE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILU…
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TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DECELERATING, THE ABS ERRONEOUSLY ACTIVATED. THE CONTACT STATED THAT THE FAILURE WAS ALSO PRESENT ON DRY PAVEMENT AND CAUSED AN INCREASE IN STOPPING DISTANCE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 70,000. THE VIN WAS NOT AVAILABLE.
ON AUGUST 7, 2013, I WAS HEADING INTO RICHMOND, KY AND WAS APPROACHING A STOP LIGHT. I BEGAN TO LIGHTLY APPLY PRESSURE ON THE BRAKE AND BEGAN TO SLOW DOWN. AS I CONTINUED TO APPLY MORE PRESSURE, THE BRAKE PEDAL WENT TO THE FLOOR AND I HAD NO BRAKE PRESSURE. I HAD NO WARNING LIGHTS OR MESSAGES ON THE DASH BOARD AT TH…
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ON AUGUST 7, 2013, I WAS HEADING INTO RICHMOND, KY AND WAS APPROACHING A STOP LIGHT. I BEGAN TO LIGHTLY APPLY PRESSURE ON THE BRAKE AND BEGAN TO SLOW DOWN. AS I CONTINUED TO APPLY MORE PRESSURE, THE BRAKE PEDAL WENT TO THE FLOOR AND I HAD NO BRAKE PRESSURE. I HAD NO WARNING LIGHTS OR MESSAGES ON THE DASH BOARD AT THIS TIME. I CONTINUED TO PUMP THE BRAKES IN AN ATTEMPT TO REGAIN BRAKE PRESSURE BUT WAS NOT SUCCESSFUL. WHILE STILL PRESSING THE BRAKE PEDAL NEAR THE FLOOR, I NOTICED THE VEHICLE WAS BEGINNING TO SLOW DOWN, BUT NOT ENOUGH TO STOP AT THE LIGHT. FORTUNATELY NO ONE WAS IN FRONT OF ME OR AT THE INTERSECTION AS I APPROACHED IT. I USED THE UPCOMING HILL TO CONTINUE TO SLOW DOWN AND EVENTUALLY MADE IT TO A VACANT PARKING LOT. ONCE I CAME TO A STOP THE VEHICLE DASH BOARD LIGHTS APPEARED ABOUT THE BRAKE SYSTEM ISSUES. AFTER CONTACTING THE LOCAL GM SERVICE STATION, I WAS ABLE TO PUT THE VEHICLE IN 1ST GEAR AND SLOWLY MAKE MY WAY TO THE SERVICE LOCATION ON SIDE ACCESS ROADS. THE DEALERSHIP DETERMINED THAT ALL THE BRAKE LINES WERE RUSTED AND SEVERAL HAD FAILED. THIS CAUSED THE BRAKE FAILURE AND THEY ALL NEEDED REPLACED. THE REPAIR COST WAS OVER $2300. MY TRUCK HAD 185,591 MILES AT THE TIME OF THE INCIDENT. I HAD RECENTLY MOVED TO KY BUT WAS LIVING IN OHIO FOR MOST OF THE OWNERSHIP OF THE TRUCK. *TR
BRAKE LINES RUSTED OUT. HAD TO DRIVE 60 MILES AND CHOSE EARLY MORNING DUE TO HAVING ALMOST BRAKING POWER. WE HAVE A FORD TRUCK OF THE SAME YEAR AND THE BRAKE LINES ARE STILL VERY GOOD. THERE IS NO EXCUSE FOR THIS OTHER THAN A GOOD COMPANY GOING ON THE CHEAP. !!!! *TR
MY WIFE WAS DRIVING OUR 2003 CHEVROLET SILVERADO 4X4 PICKUP ON SECONDARY STATE ROUTE. WHILE DESCENDING AN APPROXIMATE 6% GRADE INTO A RIGHT HAND TURN AT BOTTOM SHE DEPRESSED THE BRAKE PEDAL TO SLOW FOR THE GRADE AND TURN AND IT WENT TO THE FLOOR, THE SERVICE BRAKE MESSAGE CAME UP IN THE DIC AND THE DOOR CHIME SOUNDED. SHE PULL…
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MY WIFE WAS DRIVING OUR 2003 CHEVROLET SILVERADO 4X4 PICKUP ON SECONDARY STATE ROUTE. WHILE DESCENDING AN APPROXIMATE 6% GRADE INTO A RIGHT HAND TURN AT BOTTOM SHE DEPRESSED THE BRAKE PEDAL TO SLOW FOR THE GRADE AND TURN AND IT WENT TO THE FLOOR, THE SERVICE BRAKE MESSAGE CAME UP IN THE DIC AND THE DOOR CHIME SOUNDED. SHE PULLED OVER AS SOON AS POSSIBLE AS SHE WAS SHAKEN FROM RIDING OUT THAT HILL AND TURN WITH MINIMAL BRAKES AND CALLED ME. I WENT OUT AND DROVE THE TRUCK BACK TO OUR HOME AND PUT IN THE GARAGE TO INSPECT THE PROBLEM. ONCE UNDER THE TRUCK I FOUND BRAKE FLUID DRIPPING FROM THE SIDE OF THE FUEL TANK AND FRAME AREA UNDER THE CAB AND BED OF THE TRUCK. THE SERVICE BRAKE LINE FROM THE ABS BLOCK TO THE REAR FRAME POINT WHERE THE BRAKE HOSE TO THE REAR AXLE MOUNTS WAS CORRODED THROUGH AND LEAKING. FURTHER INSPECTION SHOWED ALL BRAKE HARD LINE PLUMBING TO BE IN POOR CONDITION AND ALSO THE FUEL LINES SHOWING HIGH CORROSION. A CALL TO A LOCAL GM PARTS COUNTER REVEALED THAT GM DOES NOT MAKE A REPLACEMENT SET FOR THESE LINES AND THAT A TECHNICIAN WOULD NEED TO FIELD BEND AND MAKE UP EACH LINE. LATER RESEARCH PROVED THIS TO BE WRONG AS GM OFFERS A DEEPLY DISCOUNTED UNADVERTISED LINE SET FROM AC DELCO. IN RESEARCHING FINDING PARTS TO REPAIR, I HAVE FOUND THIS TO BE A COMMON PROBLEM WITH CHEVROLET/GMC TRUCKS FROM ABOUT 1999 UP ACCORDING TO THE VARIOUS TRUCK OWNER FORUMS ONLINE. DRIVING THE VEHICLE HOME AT SLOW SPEED, BRAKING WAS VERY MINIMAL WITH THE REAR BRAKE CIRCUIT OUT,AND THE KNOWLEDGE OF POOR BRAKE OPERATION, SO THEREFORE IT IS MY OPINION THAT THIS IS A SAFETY ISSUE WITH THESE VEHICLES WITH THE POTENTIAL OF INJURY OR EVEN DEATH WHEN ALL THE FACTORS COMBINE POORLY, AND AT THE LEAST, GM SHOULD BE REQUIRED TO NOTIFY OWNERS OF THIS POTENTIAL PROBLEM WITH THEIR VEHICLE, IF NOT RECALL AND REPAIR THOSE EFFECTED VEHICLES. *TR
WHILE ATTEMPTING TO STOP IN FRONT OF A STORE MY BRAKE PEDAL WENT TO THE FLOOR I SHIFTED INTO PARK TO AVOID HITTING THE PERSON IN THE CROSSWALK. MY TRUCK WAS TOWED TO THE DEALER AND I WAS TOLD ALL BRAKE LINES WERE COMPLETELY RUSTED THE GM REP TOLD ME IT WAS AN OLD TRUCK WITH MANY MILES AS A RETIRED GM EMPLOYEE AND A LICENSED MECH…
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WHILE ATTEMPTING TO STOP IN FRONT OF A STORE MY BRAKE PEDAL WENT TO THE FLOOR I SHIFTED INTO PARK TO AVOID HITTING THE PERSON IN THE CROSSWALK. MY TRUCK WAS TOWED TO THE DEALER AND I WAS TOLD ALL BRAKE LINES WERE COMPLETELY RUSTED THE GM REP TOLD ME IT WAS AN OLD TRUCK WITH MANY MILES AS A RETIRED GM EMPLOYEE AND A LICENSED MECHANIC I HAVE DRIVEN MANY OLDER CARS AND NEVER SEEN THIS KIND OF RUSTED OUT BRAKE LINES . WILL IT TAKE A FEW DEATHS AND LAWSUITS BEFORE OWNERS OF THESE TRUCKS ARE WARNED? *TR
TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE PASSENGER'S SIDE ELECTRONIC CONTROLS FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS CONFIRMED THAT THE ACTUATOR AND WINDOW MOTOR HAD FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE FAILURE. THE FAILURE MILEA…
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TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE PASSENGER'S SIDE ELECTRONIC CONTROLS FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS CONFIRMED THAT THE ACTUATOR AND WINDOW MOTOR HAD FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE FAILURE. THE FAILURE MILEAGE WAS 67,500.
TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THE BRAKES WERE ENGAGED BUT THE BRAKE PEDAL SUNK INTO THE FLOORBOARD AND FAILED TO STOP THE VEHICLE. THE CONTACT MENTIONED THAT THE SERVICE BRAKE SYSTEM WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A D…
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TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THE BRAKES WERE ENGAGED BUT THE BRAKE PEDAL SUNK INTO THE FLOORBOARD AND FAILED TO STOP THE VEHICLE. THE CONTACT MENTIONED THAT THE SERVICE BRAKE SYSTEM WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 68,000.
THE A/C HAD ENGAGED(TURNED ON) ITSELF FOLLOWING MY USE EARLIER THIS DAY, THE HEATER HAD WORKED WELL PREVIOUS THIS MORNING. THE TEMP WAS NINETEEN DEGREES OUTSIDE AND THE TRUCK WAS PARKED OUTSIDE. I WAS UNABLE TO TURN OFF THE AIR CONDITIONING, BY PRESSING THE BUTTON NOR WOULD ANY OF THE CONTROLS CAUSE HEAT TO COME FROM THE VENTS. …
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THE A/C HAD ENGAGED(TURNED ON) ITSELF FOLLOWING MY USE EARLIER THIS DAY, THE HEATER HAD WORKED WELL PREVIOUS THIS MORNING. THE TEMP WAS NINETEEN DEGREES OUTSIDE AND THE TRUCK WAS PARKED OUTSIDE. I WAS UNABLE TO TURN OFF THE AIR CONDITIONING, BY PRESSING THE BUTTON NOR WOULD ANY OF THE CONTROLS CAUSE HEAT TO COME FROM THE VENTS. I REMOVED THE DASH TRIM AND UNCLIPPED THE RADIO MOUNTS AND REMOVED THE RIGHT ELECTRICAL PLUG FROM THE BACK OF THE HEATER CONTROL UNIT AND THEN RECONNECTED. THEN THE HEATER BEGAN TO WORK. THE DEALER SAID THE PART IS NOT AVAILABLE FROM GENERAL MOTORS BUT THEY OFFER A REBUILD PROGRAM THROUGH THE DEALER. DEPENDING ON IN STOCK REPLACEMENT AND AVAILABILITY. IT WOULD TAKE TWO DAYS TO REPAIR AND THE DEALER WOULD REUSE THE FACE PLATE FROM MY UNIT PART. THE COST IS 135.00 PLUS SHIPPING. THIS WAS THE FIRST TIME THIS HAS HAPPENED,AND IT MAY HAVE BEEN A POOR ELECTRICAL CONNECT DUE TO THE AGE OF THE VEHICLE AND MILEAGE. *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.