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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.

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When problems were reported

Mileage at the reported incident

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

Electrical System complaints

195 reports
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55,000 miles · Jun 18, 2008
Electrical System

THE SPEEDOMETER WORK SOMETIME,OIL CLUSTER NEEDLE NOT WORKING. IT WAS A RECALL BUT YOU HAD TO BE UNDER LIKE 70 THOUSAND MILE TO GET THE SERVICE FREE AND I WAS OVER THE MILEAGE. THIS IS A DEFECT AND I SHOULD NOT HAVE TO PAY BECAUSE MY TRUCK WAS OVER 70 THOUSAND MILES. *TR

NHTSA ODI #10231456

63,000 miles · Jun 4, 2008
Air BagsElectrical System

I HAVE A 1500 CHEVY, SILVERADO. I WAS NOTIFIED BY ?? BECAUSE THE DEALERSHIP I PURCHASED THE VEHICLE FROM HAS CLOSED. THE RECALL STATED A PROBLEM WITH THE INSTRUMENT PANEL CLUSTER. BUT, BECAUSE WE HAD MORE THAN 70,000 MILES IT WAS NOT COVERED. WE HAD TO PAY OVER $300.00. WE WERE NOT NOTIFIED IN A TIMELY MANNER AND SHOULD BE …

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I HAVE A 1500 CHEVY, SILVERADO. I WAS NOTIFIED BY ?? BECAUSE THE DEALERSHIP I PURCHASED THE VEHICLE FROM HAS CLOSED. THE RECALL STATED A PROBLEM WITH THE INSTRUMENT PANEL CLUSTER. BUT, BECAUSE WE HAD MORE THAN 70,000 MILES IT WAS NOT COVERED. WE HAD TO PAY OVER $300.00. WE WERE NOT NOTIFIED IN A TIMELY MANNER AND SHOULD BE REIMBURSED. IN 2006 WHEN THE ODOMETER AND THE TEMP GAUGES WAS STICKING WE DID NOT HAVE 70,000 MILES. THE AIR BAG LIGHT IS STILL STUCK SINCE 2006. *TR

NHTSA ODI #10229851

146,000 miles · May 13, 2008
Electrical System

SPEEDOMETER STICKS. *TR

NHTSA ODI #10227568

102,000 miles · May 5, 2008
Electrical System

REALIZED MY SPEEDOMETER WAS NOT ACCURATE DURING A TRIP ON THE INTERSTATE, BECAME WORSE AND EVENTUALLY STOPPED WORKING. *TR

NHTSA ODI #10226673

100,000 miles · Apr 29, 2008
Electrical System

I HAD ONE INCIDENT ABOUT 6 MONTHS TO A YEAR AGO WHEN THE SPEEDOMETER IN MY VEHICLE FAILED TO READ PROPERLY. I LATER RECEIVED A LETTER FROM CHEVROLET STATING THERE WAS A DEFECT INVOLVING THE SPEEDOMETER. HOWEVER, THE MILEAGE ON MY VEHICLE (ABOUT 100K AT THAT TIME) WAS OVER THE 70K MAXIMUM FOR THE COMPANY TO REPAIR IT. I HA…

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I HAD ONE INCIDENT ABOUT 6 MONTHS TO A YEAR AGO WHEN THE SPEEDOMETER IN MY VEHICLE FAILED TO READ PROPERLY. I LATER RECEIVED A LETTER FROM CHEVROLET STATING THERE WAS A DEFECT INVOLVING THE SPEEDOMETER. HOWEVER, THE MILEAGE ON MY VEHICLE (ABOUT 100K AT THAT TIME) WAS OVER THE 70K MAXIMUM FOR THE COMPANY TO REPAIR IT. I HAVE SINCE HAD IT HAPPEN SEVERAL MORE TIMES, OFF AND ON, DURING 2008. THE SPEEDOMETER STICKS, EXAMPLE: AT 30 MPH, THEN YOU HAVE TO SUBTRACT 30 MPH FROM WHATEVER IT REGISTERS TO GET YOUR ACTUAL SPEED. I CONTACTED THE 1-800 NUMBER FOR CHEVROLET. THEY OFFERED ME A $200 VOUCHER FOR OTHER "MAINTENANCE" AT THE DEALER, BUT REFUSED TO REPLACE THE SPEEDOMETER. I HAVE NOT HAD IT LOOKED AT BECAUSE I WILL BE CHARGED A DIAGNOSTIC FEE ON SOMETHING THAT THEY ARE NOT WILLING TO REPLACE. IT IS OBVIOUS THAT THE DEFECT IS IN THE PART, AND IS NOT DUE TO ANY NEGLECT ON MY PART. I DID TELL THE 1-800 CLERK TO SEND THE VOUCHER AFTER SHE TOLD ME THAT THERE WAS NO OTHER RECOURSE. SHE STATED THAT THE VOUCHER WAS FOR ME BEING A LOYAL CUSTOMER. *TR

NHTSA ODI #10226018

79,000 miles · Apr 1, 2008
Electrical System

THE SPEEDO SLOWLY QUIT WORKING. ASKED SEVERAL SERVICE AGENTS AND DEALERS AND THEY WERE UNAWARE OF THE WAY TO CORRECT THE PROBLEM OTHER THAN BY RESTARTING THE VEHICLE OVER AND OVER UNTIL IT FORCED THE SPEEDO BACK INTO ZERO PLACEMENT, BUT NOW THAT DOES NOT WORK AND THE SPEEDO DOES NOT WORK AT ALL. ALL OTHER GAUGES WORK FINE. *…

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THE SPEEDO SLOWLY QUIT WORKING. ASKED SEVERAL SERVICE AGENTS AND DEALERS AND THEY WERE UNAWARE OF THE WAY TO CORRECT THE PROBLEM OTHER THAN BY RESTARTING THE VEHICLE OVER AND OVER UNTIL IT FORCED THE SPEEDO BACK INTO ZERO PLACEMENT, BUT NOW THAT DOES NOT WORK AND THE SPEEDO DOES NOT WORK AT ALL. ALL OTHER GAUGES WORK FINE. *TR

NHTSA ODI #10223040

90,000 miles · Mar 18, 2008
Electrical System

THE ENTIRE INSTRUMENT PANEL WAS ACTING UP, THEN THE SPEEDOMETER WAS SHOWING 20 WHEN I WAS STOPPED, THEN IT WOULD GO BELOW 0, AND NO FINALLY IT DOES NOT WORK AT ALL. I RECEIVED A LETTER SAYING CHEVY KNEW THIS WAS A PROBLEM BUT WOULD ONLY FIX IT IF THE TRUCK HAD LESS THAN 70,000 MILES AND WAS UNDER 7 YEARS OLD. *TR

NHTSA ODI #10221538

79,000 miles · Mar 13, 2008
Electrical System

SPEEDOMETER ERRATIC. DOES NOT REFLECT ACTUALLY SPEED. NORMALLY JUMPS OR STAYS AT 20 MPH. DEFINITE SAFETY ISSUE AND I CAN SEE BY WEB RESEARCH A VERY COMMON PROBLEM. HOW DOES ONE MAINTAIN PROPER SEPARATION DISTANCE ? WHERE'S THE RECALL ?? *TR

NHTSA ODI #10221106

90,000 miles · Feb 22, 2008
Electrical System

I PURCHASED A 2003 CHEVROLET SILVERADO PICKUP IN DECEMBER 2006. IN THE BEGINNING OF 2007, MANY OF MY INSTRUMENT PANEL GAUGES BEGIN TO STICK. SOME DAYS THEY WOULD WORK, SOME DAYS THEY WOULDN'T. SHORTLY AFTER THIS, I RECEIVED A "COURTESY" LETTER FROM GM DESCRIBING THE PROBLEMS HAPPENING TO MY VEHICLE AND ADVISING OWNERS OF A SP…

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I PURCHASED A 2003 CHEVROLET SILVERADO PICKUP IN DECEMBER 2006. IN THE BEGINNING OF 2007, MANY OF MY INSTRUMENT PANEL GAUGES BEGIN TO STICK. SOME DAYS THEY WOULD WORK, SOME DAYS THEY WOULDN'T. SHORTLY AFTER THIS, I RECEIVED A "COURTESY" LETTER FROM GM DESCRIBING THE PROBLEMS HAPPENING TO MY VEHICLE AND ADVISING OWNERS OF A SPECIAL COVERAGE THAT WOULD EXTEND THE WARRANTY FOR CERTAIN CUSTOMERS. MY VEHICLE, HAVING OVER THE NUMBER OF MILES ALLOWED, DOES NOT QUALIFY FOR THIS COVERAGE. SINCE THAT TIME, ALL THE GAUGES ON MY INSTRUMENT PANEL HAVE GONE OUT. I STRONGLY DISAGREE WITH GM'S CLAIM THAT THIS IS "NOT A SAFETY ISSUE". NOT HAVING A SPEEDOMETER, OR ANY OTHER GAUGES ON THE VEHICLE IS EXTREMELY UNSAFE! I HAVE A FIVE YEAR OLD VEHICLE, AND I UNEQUIVOCALLY BELIEVE THIS ISSUE SHOULD BE ELEVATED FROM ONE OF A "COURTESY EXTENSION" TO A RECALL. THIS DEFECT HAS NOTHING TO DO WITH THE MILEAGE ON MY TRUCK, AND I SHOULD NOT BE PENALIZED FOR THE NUMBER OF MILES ON IT! I CONTACTED GM CUSTOMER SERVICE, BUT I WAS ADVISED THAT MY VEHICLE WAS OVER THE ALLOWABLE MILEAGE FOR THIS SPECIAL COVERAGE AND I COULD NOT BE ASSISTED. THIS SITUATION IS TRULY AN ACCIDENT WAITING TO HAPPEN. *TR

NHTSA ODI #10218891

50,000 miles · Feb 21, 2008
Electrical System

APPROX. 2 YEARS AGO THE INSTRUMENT PANEL WENT OUT IN OUR CHEVY SILVERADO TK. AT THAT TIME THERE WAS ABOUT 50K MI. ON THE TRUCK. WE COULD NOT AFFORD TO HAVE THE PANEL FIXED. WE HAVE BEEN DRIVING THE TRUCK AS IS. WE HAVE HAD MANY CHEVY TKS. ABOUT ONE MO. AGO WE RECEIVED A LETTER IN THE MAIL ABOUT CHEVY PRODUCTS HAVING THE SAME P…

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APPROX. 2 YEARS AGO THE INSTRUMENT PANEL WENT OUT IN OUR CHEVY SILVERADO TK. AT THAT TIME THERE WAS ABOUT 50K MI. ON THE TRUCK. WE COULD NOT AFFORD TO HAVE THE PANEL FIXED. WE HAVE BEEN DRIVING THE TRUCK AS IS. WE HAVE HAD MANY CHEVY TKS. ABOUT ONE MO. AGO WE RECEIVED A LETTER IN THE MAIL ABOUT CHEVY PRODUCTS HAVING THE SAME PROBLEMS AS OURS. BUT THE STIPULATIONS ARE IN OUR EYES UN ACCEPTABLE. YOU CAN HAVE NO MORE THAN 70K MI. ON THE VEHICLE IN ORDER FOR CHEVY TO FIX THIS DEFECT. IF THEY KNEW OF THE DEFECT HOW CAN THERE BE THIS KIND OF STIPULATION... FOR THOSE OF US IN CA, THE MILES TRAVELED ARE MANY MORE THAN OTHER STATES. ALSO THE DEFECT IN THE VEHICLE DOES NOT DISCRIMINATE. WHEN IT HAPPENS IT HAPPENS! THE LETTERS WERE SENT OUT TO VEHICLES THAT ARE 2003'S. IT HAS ALREADY BEEN 5 YRS. WE BELIEVE THERE SHOULD BE A RECALL ON THIS PART. *TR

NHTSA ODI #10218815

Official recalls

0

No 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

3

EA11001 · 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.