NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
805 reports38,000 miles · Mar 16, 2005
Vehicle Speed Control
SOMETIMES THE SPEEDOMETER WORKS AND SOMETIMES IT DOESN'T. AT APPROXIMATELY 38,000 MILES THIS FIRST OCCURRED AND I CALLED A NEARBY DEALER TO SEE IF THEY COULD RESET THE COMPUTER THINKING THAT WAS THE PROBLEM. AT THE TIME THEY COULDN'T FIT ME IN AND ASKED THAT I SCHEDULE AN APPOINTMENT. I DISCUSSED THE PROBLEM WITH A CO-WORKER …
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SOMETIMES THE SPEEDOMETER WORKS AND SOMETIMES IT DOESN'T. AT APPROXIMATELY 38,000 MILES THIS FIRST OCCURRED AND I CALLED A NEARBY DEALER TO SEE IF THEY COULD RESET THE COMPUTER THINKING THAT WAS THE PROBLEM. AT THE TIME THEY COULDN'T FIT ME IN AND ASKED THAT I SCHEDULE AN APPOINTMENT. I DISCUSSED THE PROBLEM WITH A CO-WORKER AND HIS 2004 HAD THE SAME PROBLEM AND WAS IN THE SHOP. APPARENTLY IT HAS OCCURRED MANY TIMES BECAUSE THE DEALERSHIP TOLD HIM IT WAS 4-7 WEEKS TO GET NEW PARTS OR THEY COULD SEND OUT HIS EXISTING PARTS TO BE REWORKED. THE DELAER HAS SAID THAT A BULLITIN HAS BEEN ISSUED BUT NO RECALL HAS BEEN ORDERED. I WOULD THINK THAT VEHICLES A YEAR OR TWO OLD SHOULD HAVE A WORKING SPEEDOMETER. THE WAY I HAVE FOUND TO FIX IT IS TO STOP AND REMOVE THE BATTERY CABLES AND LET THE COMPUTER RESET. SOMETIMES THE SPEEDOMETER GOES TO 120 MPH AND JUST STAYS THERE, EVEN WHEN THE TRUCK IS NOT RUNNING. I AM WONDERING IF THIS EFFECTS MY ANTI-LOCK BRAKES OR MY MILEAGE READINGS.*AK
NHTSA ODI #10114161
Mileage unknown · Feb 28, 2005
Power Train
WHILE SHIFTING GEARS DRIVER HEARD A LOUD CLANKING NOISE COMING FROM THE FRONT. VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION, AND MECHANIC DETERMINED THAT THE COMPUTER NEEDED TO BE REPROGRAMMED, AND REPROGRAMMED IT THREE TIMES. HOWEVER, THE PROBLEM RECURRED. *AK
NHTSA ODI #10113146
51,000 miles · Feb 4, 2005
Engine And Engine Cooling
MAJOR REPAIRS FIRST THE AXLE SEAL STARTED LEAKING 24000 MILES,ALSO NOTIFIED MANUFACTURER DIDN'T GET REPAIR UNTIL , RETURN FOR CHECK AT 36000 ,I FIXED THE TRUCK MYSELF BECAUSE WASN'T GETTING SERVICE FROM DEALERSHIP WHERE I PURCHASED MY TRUCK,FLOW CHEVROLET,OF WINSTON SALEM. NOW I HAD NOTICED TICKING WHEN I WOULD START THE ENGINE …
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MAJOR REPAIRS FIRST THE AXLE SEAL STARTED LEAKING 24000 MILES,ALSO NOTIFIED MANUFACTURER DIDN'T GET REPAIR UNTIL , RETURN FOR CHECK AT 36000 ,I FIXED THE TRUCK MYSELF BECAUSE WASN'T GETTING SERVICE FROM DEALERSHIP WHERE I PURCHASED MY TRUCK,FLOW CHEVROLET,OF WINSTON SALEM. NOW I HAD NOTICED TICKING WHEN I WOULD START THE ENGINE COLD AND HAVE BEEN LEFT TO SETTLE WITH HAVING THE TRUCK REPAIRED WITH IT COSTING ME THE CONSUMER, EVEN IF ,THE DEALERSHIP I WORKING WITH ME. BUT AT 51000 OR BETTER I SHOULDN'T BEHAVING THESE TYPE OF REPAIRS. *JB
NHTSA ODI #10109818
Mileage unknown · Jan 24, 2005
Service Brakes, HydraulicSuspension
MY HUSBAND OWNS A 03 SILVERADO C1500. I DRIVE IT TO SAVE ON GAS. I HAVE TRIED COMING TO A STOP BEFORE, AND HAD THE PEDAL ALL THE WAY TO THE FLOOR, I ALMOST MISSED MY TURN. I SCARED ME BECAUSE I KNOW YOU DO NOT NEED THAT MUCH PRESSURE ON BRAKES TO STOP. THE BIGGEST PROBLEM I HAVE IS EVERYTIME I MAKE A LEFT TURN, THERE IS A KNOCKI…
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MY HUSBAND OWNS A 03 SILVERADO C1500. I DRIVE IT TO SAVE ON GAS. I HAVE TRIED COMING TO A STOP BEFORE, AND HAD THE PEDAL ALL THE WAY TO THE FLOOR, I ALMOST MISSED MY TURN. I SCARED ME BECAUSE I KNOW YOU DO NOT NEED THAT MUCH PRESSURE ON BRAKES TO STOP. THE BIGGEST PROBLEM I HAVE IS EVERYTIME I MAKE A LEFT TURN, THERE IS A KNOCKING NOISE IN THE FRONT END. WE THOUGHT IS WAS THE SHROUD COVER, BUT WAS NOT. IT IS NOW GETTING LOUDER, AND I WOULD LIKE TO FIND OUT IF THIS IS BEING INVESTIGATED FOR A RECALL FOR BOTH THE BRAKES AND THE KNOCKING NOISE? THANKS IN ADVANCE FOR THE HELP! *NM
NHTSA ODI #10107785
Mileage unknown · Jan 7, 2005
Air BagsSeat BeltsCrashInjury
WHILE DRIVING 35 MPH CONSUMER'S VEHICLE WAS INVOLVED IN A FRONTAL COLLISION. UPON IMPACT, BOTH FRONTAL AIR BAGS FAILED TO DEPLOY, AND BOTH FRONTAL AND REAR SEAT BELTS FAILED TO LOCK. DRIVER AND TWO PASSENGERS SUSTAINED MINOR INJURIES, AND WERE TRANSPORTED TO THE HOSPITAL. VEHICLE WAS TOWED TO A DEALER FOR INSPECTION. *AK
NHTSA ODI #10107035
45,000 miles · Jan 5, 2005
Steering
WHEN TURNING TO THE LEFT OR RIGHT VEHICLE PRODUCED A LOUD NOISE. *AK IT WAS DETERMINED THAT THE INTERMEDIATE SHAFT IN THE STEERING NEEDED TO BE REPALCED, HOWEVER THE PART WAS ON BACKORDER. *JB
NHTSA ODI #10103190
7,000 miles · Dec 19, 2004
Service Brakes, Hydraulic
POTENTIAL BRAKE FAILURE ON NEW VEHICLE. 2003 CHEVY SILVERADO INFORMATION CENTER INDICATED "REDUCED BRAKE POWER." CHEVY DEALERSHIP IN NEW MEXICO INDICATED THE INTAKE MANIFOLD NEEDED TO BE REPLACED TO PROVIDE ADEQUATE VACUUM FOR BRAKE ASSIST. NEW MEXICO CHEVY DEALER DID NOT HAVE THE PARTS TO FIX AND I WAS TRAVELING, SO THEY FLASH…
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POTENTIAL BRAKE FAILURE ON NEW VEHICLE. 2003 CHEVY SILVERADO INFORMATION CENTER INDICATED "REDUCED BRAKE POWER." CHEVY DEALERSHIP IN NEW MEXICO INDICATED THE INTAKE MANIFOLD NEEDED TO BE REPLACED TO PROVIDE ADEQUATE VACUUM FOR BRAKE ASSIST. NEW MEXICO CHEVY DEALER DID NOT HAVE THE PARTS TO FIX AND I WAS TRAVELING, SO THEY FLASHED THE IPC CARD TO ELIMINATE THE MESSAGE. I RETURNED TO HOUSTON, TX AND WESTSIDE CHEVROLET FLASHED THE IPC IN AN ATTEMPT TO MASK THE PROBLEMS AND TOLD ME IT WAS FIXED. *JB
NHTSA ODI #10104098
1,000 miles · Sep 8, 2004
Power Train
I HAVE A 2003 CHEVROLET PICKUP WITH APPROX. 26,000 MILES ON IT AND THE TRANSMISSION CLUNKS LOUDLY WHEN UPSHIFTING AND DOWNSHIFTING AND GETS WORSE BY THE WEEK. IT IS NOW SLAMMING INTO GEAR AND I AM AFRFAID TO DRIVE IT BECAUSE IT MIGHT FAIL AT SPEED OR IN TRAFFIC AND I AM AFRAID IT MAY CAUSE AN ACCIDENT. THE DEALER AND MANUFACTURE…
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I HAVE A 2003 CHEVROLET PICKUP WITH APPROX. 26,000 MILES ON IT AND THE TRANSMISSION CLUNKS LOUDLY WHEN UPSHIFTING AND DOWNSHIFTING AND GETS WORSE BY THE WEEK. IT IS NOW SLAMMING INTO GEAR AND I AM AFRFAID TO DRIVE IT BECAUSE IT MIGHT FAIL AT SPEED OR IN TRAFFIC AND I AM AFRAID IT MAY CAUSE AN ACCIDENT. THE DEALER AND MANUFACTURER BOTH SAY IT IS A NORMAL CONDITION AND THEY HAVE NOT HAD ANY COMPLAINTS OF THIS TYPE BUT THERE IS A BULLETIN OUT ABOUT IT. I AM CONCERNED THAT THEY MAY BE TRYING TO COVER UP AN APPARENT DEFECT ON THE AFFECTED VEHICLES. THIS WAS MY HUSBANDS TRUCK, WHO PASSED AWAY IN APRIL AND I NEED IT TO HAUL VARIOUS THINGS TO THE FARM WHICH IS A 6 HR. DRIVE BUT NOW I AM AFRAID TO MAKE THE TRIPS IN THIS VEHICLE. IT HAS NEVER BEEN ABUSED OR OVERLOADED AND I WOULD APPRECIATE ANY HELP YOU COULD AFFROD ME ON THIS MATTER. THANK YOU IN ADVANCE FOR YOUR ATTENTUION TO THIS MATTER. [XXX]*AK ('PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB
NHTSA ODI #10090655
11,500 miles · Aug 24, 2004
Service Brakes, HydraulicCrash
WHEN ATTEMPTING TO STOP BRAKE PEDAL PROCEEDED TO THE FLOOR AND VEHICLE CONTINUED TO ROLL. AS A RESULT, CONSUMER'S VEHICLE WAS INVOLVED IN A FRONTAL COLLISION. *AK
NHTSA ODI #10089526
27,490 miles · Jul 19, 2004
Equipment
WHEN CHANGING A FLAT TIRE ON A PICK UP TRUCK THE O E M BOTTLE JACK COLLAPSED NEARLY INJURING AN EMPLOYEE. THE BASE OF JACK CAME APART AT THE FOUR CRIMPED PLACES WHICH RE USED IN PLACE OF WELDS, RIVETS OR BOLTS. THESE JACKS NEED TO BE RECALLED BEFORE SOMEONE IS KILLED OR SERIOUSLY INJURED! WE REPLACED THE JACK WITH A HYDRAUL…
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WHEN CHANGING A FLAT TIRE ON A PICK UP TRUCK THE O E M BOTTLE JACK COLLAPSED NEARLY INJURING AN EMPLOYEE. THE BASE OF JACK CAME APART AT THE FOUR CRIMPED PLACES WHICH RE USED IN PLACE OF WELDS, RIVETS OR BOLTS. THESE JACKS NEED TO BE RECALLED BEFORE SOMEONE IS KILLED OR SERIOUSLY INJURED! WE REPLACED THE JACK WITH A HYDRAULIC JACK. WE STILL HAVE THE FAILED JACK AND WILL TAKE DIGITAL PICTURES OF IT.*AK *NM
NHTSA ODI #10078597
NHTSA investigations
3EA11001 · Brake Line Corrosion Failure
Opened Jan 5, 2011 · Closed Apr 8, 2015
Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Additional source detail variants (2)
Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
Service Brakes, Hydraulic
On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has viewed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor t
EA04011 · Parking Brake Failure
Opened Apr 9, 2004 · Closed May 10, 2005
Status: closed (inferred from source dates) · Parking Brake; Parking Brake:conventional; Parking Brake:conventional:mechanical; Parking Brake:conventional:mechanical:linkage And Cable
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Additional source detail variants (4)
Parking Brake:conventional
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake:conventional:mechanical
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake:conventional:mechanical:linkage And Cable
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Parking Brake
IN A LETTER DATED APRIL 20, 2005, GM NOTIFIED NHTSA THAT IT HAD DECIDED THAT DEFECTS THAT RELATE TO MOTOR VEHICLE SAFETY EXIST IN CERTAIN MODEL YEAR (MY) 1999-2002 C/K 1500 SERIES (PBR PARKING BRAKE SYSTEM) AND MY 2001-2005 C/K 2500 AND 3500 SERIES (TRW PARKING BRAKE SYSTEM) PICKUPS WITH MANUAL TRANSMISSIONS.ACCORDING TO GM, SOME OF THESE VEHICLES MAY HAVE CONDITIONS THAT CAUSE THE FRICTION LININGS TO WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.GM'S ACTION COVERS AN ESTIMATED TOTAL OF 142,585 VEHICLES.DEALERS WILL INSTALL A LOW-FORCE SPRING CLIP RETAINER FOR VEHICLES EQUIPPED WITH THE PBR PARKING BRAKE SYSTEM AND INSTALL A REDESIGNED PARKING BRAKE CABLE ASSEMBLY ON VEHICLES EQUIPPED WITH THE TRW PARKING BRAKE SYSTEM. A TOTAL OF 58 NON-DUPLICATIVE COMPLAINTS WERE RECEIVED BY ODI AND GM CONCERNING THE APPROXIMATELY 59,000 MY 1999-2002 C/K 1500 SERIES PICKUP TRUCKS WITH THE PBR PARKING BRAKE SYSTEM.THESE INCLUDED 22 ALLEGED ROLLAWAY INCIDENTS, RESULTING IN A RATE OF 38.5 ROLLAWAY INCIDENTS PER 100,000 VEHICLES.ODI IS AWARE OF 24 COMPLAINTS REGARDING THE MY 2001-2005 C/K 2500 AND 3500 SERIES MANUAL TRANSMISSION TRUCKS RECALLED BY GM, INCLUDING 5 ALLEGING ROLLAWAY INCIDENTS.THOUGH THE CONDITIONS DESCRIBED IN GM'S LETTER ARE ALSO PRESENT IN THE C/K TRUCKS WITH AUTOMATIC TRANSMISSIONS, THE ROLLAWAY RATE IN THOSE VEHICLES WAS SIMILAR TO THOSE OBSERVED IN PEER VEHICLES STUDIED BY ODI IN THIS INVESTIGATION.THIS ENGINEERING ANALYSIS IS CLOSED. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
PE03057 · Parking Brake Failure
Opened Dec 8, 2003 · Closed Apr 9, 2004
Status: closed (inferred from source dates) · Parking Brake
ODI OPENED PE03-057 TO ASSESS PARKING BRAKE INEFFECTIVENESS IN THE SUBJECT VEHICLES.THESE VEHICLES ARE EQUIPPED WITH FOUR WHEEL DISC BRAKES THAT INCORPORATE A SINGLE-SHOE DRUM-IN-HAT PARKING BRAKE INDEPENDENT OF THE SERVICE BRAKES.COMPLAINT AND WARRANTY DATA INDICATE THAT THE PARKING BRAKE LININGS TEND TO WEAR OUT EARLY IN THE LIFE OF THE VEHICLE (AT AN AVERAGE OF 24 MONTHS IN SERVICE), REDUCING THE PARKING BRAKE SYSTEM'S TORQUE BELOW THAT NEEDED TO IMMOBILIZE THE VEHICLE.GM HAS ATTRIBUTED THIS ACCELERATED WEAR TO FOREIGN MATERIAL INTRUSION AND A FAILURE OF THE BRAKE SHOE TO PROPERLY SELF-CENTER WITHIN ITS BRAKE DRUM.EFFECTIVE WITH THE START OF MY 2003 PRODUCTION, A NEWER REDUCED FORCE HOLD-DOWN CLIP WAS INTRODUCED TO FACILITATE BRAKE SHOE DISENGAGEMENT FROM THE DRUM SURFACE.THIS PART IS ALSO AVAILABLE AT THE SERVICE LEVEL FOR THE MY 1999-2002 VEHICLES.GM HAS INDICATED THAT THE PAKING BRAKE IS INTENDED TO OPERATE IN CONJUNCTION WITH THE TRANSMISSION TO IMMOBILZE PARKED VEHICLES, AND THAT IN MANY CASES, ACCELERATED PARKING BRAKE LINING WEAR IS CAUSED BY ROUGH USE, VEHICLE MODIFICATIONS, AND DRIVING WITH THE PARKING ENGAGED. ODI HAS UPGRADED THE PRELIMINARY EVALUATION TO AN ENGINEERING ANALYSIS TO GATHER FURTHER INFORMATION CONCERNING PARKING BRAKE USAGE FACTORS AND THE CIRCUMSTANCES SURROUNDING THE SEVENTEEN REPORTED VEHICLE CRASHES.
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