IllustrationBreak line and break system has been giving issues and failure has occur. To the point of almost causing an accident. Steering issues several times. Pick-up truck suspension since newer truck has had big issues. Please remediate.
2001 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2001 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
290–25K
3825–50K
7150–75K
8075–100K
102100–150K
65150K+
385 reports with mileage · 83 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, Hydraulic. Review the 147 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 133 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 32 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
48 crash reports5 fire reports20 injury reports
Suspension complaints
10 reportsEVAPORATED SYSTEM.
TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERDO 1500. WHILE DRIVING AT 5 MPH AND WHEN THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE BEGAN TO SHAKE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FRONT WHEEL BEARING ASSEMBLY NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE F…
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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERDO 1500. WHILE DRIVING AT 5 MPH AND WHEN THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE BEGAN TO SHAKE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FRONT WHEEL BEARING ASSEMBLY NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE FAILURE MILEAGE WAS 100,000.
I WAS DRIVING TO ALABAMA FROM FLORIDA. WHEN I WAS ABOUT THREE HOURS OUT I WAS GOING DOWN THE ROAD HAULING A LOT OF PERSONAL ITEMS SINCE I WAS IN THE MIDDLE OF MOVING. IT STARTED STORMING REAL BAD SO I SLOWED DOWN TO 60 MPH AND AS I WAS APPROACHING ANOTHER VEHICLE THEY ALL THE SUDDEN SLAMMED ON THEIR BRAKES. I SAW THEM AS SOON AS…
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I WAS DRIVING TO ALABAMA FROM FLORIDA. WHEN I WAS ABOUT THREE HOURS OUT I WAS GOING DOWN THE ROAD HAULING A LOT OF PERSONAL ITEMS SINCE I WAS IN THE MIDDLE OF MOVING. IT STARTED STORMING REAL BAD SO I SLOWED DOWN TO 60 MPH AND AS I WAS APPROACHING ANOTHER VEHICLE THEY ALL THE SUDDEN SLAMMED ON THEIR BRAKES. I SAW THEM AS SOON AS THEY DID IT THEN I SLAMMED ON MY BRAKES AND THE PEDAL WENT STRAIGHT TO THE FLOOR. I ALMOST HIT THEM BUT I TURNED SHARP AND WENT INTO THE WOODS. I DIDN'T HIT ANYTHING BUT SMALL TREES SO VERY LITTLE DAMAGE TO OUTSIDE OF TRUCK. DAMAGE IS STILL THEIR BECAUSE SINCE THE WRECK I HAVE NOT BEEN ABLE TO WORK CAUSE I DESTROYED MY BACK AND NECK. AFTER THAT I STILL HAD TO DRIVE THE TRUCK THE REST OF THE THREE HOUR TRIP THAT ENDED UP TAKING NINE HOURS OF EXTREME PAIN AND SHOT NERVES. ONCE I FINALLY GOT HOME IT TOOK FOREVER AND A LOT OF MONEY TO HALF WAY FIX THE TRUCK. SINCE YOU CAN'T GET REPLACEMENT LINES AND HAD TO HAVE THEM CUSTOM MADE. TRUCK IS STILL CRAP BECAUSE NOW EVERY SINGLE PART OF THE BRAKE SYSTEM IS SHOT ALONG WITH THE BODY AND UNDERCARRIAGE. IT IS SOLID RUST NOW AND KEEPS BRAKING DOWN AND WILL COST AROUND THREE TO FIVE THOUSAND AT THE CHEAPEST TO FIX. IF I WOULD HAVE KNOWN WHAT I DO NOW THEN I WOULD HAVE SUED CHEVY AND THIS WORTHLESS ORGANIZATION CAUSE YALL HAVE KNOWN ABOUT THIS PROBLEM FOR A LONG TIME AND DID NOTHING. I THINK YALL AND CHEVY OWE ME AND THOUSANDS OF OTHER PEOPLE A LOT OF MONEY. IF YOU STILL DO NOTHING I WILL GO TO EVERY NEWS ORGANIZATION OR ANY OTHER COMPANY OR LAWYER THAT WILL GO AFTER YOUR COMPANY. YOU ARE HERE TO PROTECT PEOPLE FROM THINGS LIKE THIS BUT ALL YOU HAVE DONE IS HOPE WE ALL DIE. I WILL SPEND THE REST OF MY LIFE TRYING TO SHUT YOU DOWN AND MAKE EVERY PERSON THAT WORKS FOR THIS CRAP ORGANIZATION RESPONSIBLE FOR EVERY PERSON THAT GETS HURT OR DIES. JUST DO YOUR JOB THAT'S ALL I WANT.
I BROUGHT MY 2001 CHEVY SILVERADO IN FOR IT'S ANNUAL INSPECTION, I WAS TOLD THAT THE TRUCK DID NOT PASS INSPECTION AS THE FRAME WAS ALL RUSTED OUT, THE REST OF THE TRUCK LOOKS LIKE IT IS ONLY A FEW YEARS OLD AND OTHER THAN THE REAR BUMPER, IT DOESN'T HAVE ANY RUST ON IT, AS I HAVE TAKE WELL CARE OF IT SINCE I PURCHASED IT NEW; …
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I BROUGHT MY 2001 CHEVY SILVERADO IN FOR IT'S ANNUAL INSPECTION, I WAS TOLD THAT THE TRUCK DID NOT PASS INSPECTION AS THE FRAME WAS ALL RUSTED OUT, THE REST OF THE TRUCK LOOKS LIKE IT IS ONLY A FEW YEARS OLD AND OTHER THAN THE REAR BUMPER, IT DOESN'T HAVE ANY RUST ON IT, AS I HAVE TAKE WELL CARE OF IT SINCE I PURCHASED IT NEW; A FEW YEARS BACK, I NEEDED TO GET ALL THE BREAK SENSORS REPLACED, HAD TO REPLACE ALL THE BREAK LINES, AND REPLACE 2 OF THE BRAKE ROTORS AND DISK, DUE TO RUST. WHEN I CHECKED AROUND FOR A NEW FRAME, I WAS TOLD THAT THIS IS VERY COMMON FOR GM TRUCKS BUILT AROUND 2001. I CANNOT AFFORD TO BUY A NEW TRUCK OR PAY THE APPROX. $7,000 COST OF PUTTING A NEW FRAME UNDER MY TRUCK. I THINK THAT DUE TO ALL THE PROBLEMS WITH THIS PARTICULAR MODEL YEAR, GM SHOULD ISSUE A RECALL TO REPLACE THE FRAMES, AND REIMBURSE. *TR
I HAVE TRIED TO STAY WITH A GM PRODUCT BUT THE TRUCK I RECENTLY PURCHASED HAD THE FOLLOWING PROBLEMS,WHILE TRYING ALSO TO AVOID THE MOST COMMON PROBLEM OF THE GM BAD FRAME,BY THE WAY TOYOTA WARRANTIES THERE FRAMES. THE 1ST MONTH OF OWNERSHIP THE REAR SPRING SHACKLES BROKE THERE ARE 30 YEAR OLD TRUCKS THAT STILL DON'T HAVE THIS P…
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I HAVE TRIED TO STAY WITH A GM PRODUCT BUT THE TRUCK I RECENTLY PURCHASED HAD THE FOLLOWING PROBLEMS,WHILE TRYING ALSO TO AVOID THE MOST COMMON PROBLEM OF THE GM BAD FRAME,BY THE WAY TOYOTA WARRANTIES THERE FRAMES. THE 1ST MONTH OF OWNERSHIP THE REAR SPRING SHACKLES BROKE THERE ARE 30 YEAR OLD TRUCKS THAT STILL DON'T HAVE THIS PROBLEM,I OWN ONE. NEXT ABOUT ANOTHER 30 DAYS GO BY THE ELECTRIC FUEL PUMP DECIDED TO DIE. THAT SO FAR BRINGS REPAIRS UP TO CLOSE TO 650.00 AFTER 60 DAYS. LAST WK. MY BRAKE LINE FAILED @ ABOUT 50 MPH,NO WARNING LIGHT RIGHT TO THE FLOOR.THIS TRUCK HAD BEEN TAKEN CARE OF . SHOULD I CONTINUE ABOUT THE HOLE IN MY WINDSHIELD FRAME EVERY TIME IT RAINS MY ASH TRAY IS FILLED WITH WATER. BY THE WAY I WAS QUOTED ABOUT 1400.00 FOR ALL THE BRAKE LINE REPAIRS. WTF GM WHO HAS THAT KIND OF MONEY FOR REPAIRS,I DONT. THE PUBLIC SHOULD BE COMPENSATED FOR SUBSTANDARD MATERIAL USE. *TR
I WAS PULLING INTO PARKING SPACE AND THERE WAS NO BRAKES ALSO HAPPENED WHEN I WAS PULLING OUT OF PARKING LOT OF STORE .I TOOK TO GM DEALER AND WAS TOLD THAT BOTH HUB BEARINGS WERE LOOSE AND THAT IS WHAT CAUSED ME TO LOSE ALL MY BRAKES. I HIT A CONCRETE HANDICAP SIGN WAS LUCKY NOT ANOTHER CAR IN FRONT OF ME. WHY WOULD GM MAKE A …
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I WAS PULLING INTO PARKING SPACE AND THERE WAS NO BRAKES ALSO HAPPENED WHEN I WAS PULLING OUT OF PARKING LOT OF STORE .I TOOK TO GM DEALER AND WAS TOLD THAT BOTH HUB BEARINGS WERE LOOSE AND THAT IS WHAT CAUSED ME TO LOSE ALL MY BRAKES. I HIT A CONCRETE HANDICAP SIGN WAS LUCKY NOT ANOTHER CAR IN FRONT OF ME. WHY WOULD GM MAKE A TRUCK THAT WOULD LOSE ITS BRAKES IF A BEARING WAS LOOSE I AM AFRAID TO DRIVE TRUCK THAT THE SAME THING MIGHT HAPPEN AGAIN AND MAYBE THE NEXT TIME I WON'T BE SO LUCKY. THERE WAS NO SIGN OF ANYTHING WRONG WITH THE EXCEPTION OF 4 DAYS EARLIER MY ABS LIGHT FLICKERED ON THEN OFF 1 TIME. REMAINED OFF AFTER THAT. *TR
MY DRIVERS SIDE HUB WENT OUT ABOUT 120,000 MILES. REPLACED IT, WENT OUT LESS THAN OVER YEAR LATER, THEN AGAIN LESS THAN 6 MONTHS LATER . TAILGATE LATCH BROKE BEFORE THEN, ABOUT ONE YEAR LATER, FUEL PUMP WENT OUT. FRONT RUNNING LIGHTS ALWAYS SEEM TO HAVE A LIGHT OUT. 2009 RACK AND PINION WENT OUT, REPLACED IT, THEN ONE YEAR LATE…
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MY DRIVERS SIDE HUB WENT OUT ABOUT 120,000 MILES. REPLACED IT, WENT OUT LESS THAN OVER YEAR LATER, THEN AGAIN LESS THAN 6 MONTHS LATER . TAILGATE LATCH BROKE BEFORE THEN, ABOUT ONE YEAR LATER, FUEL PUMP WENT OUT. FRONT RUNNING LIGHTS ALWAYS SEEM TO HAVE A LIGHT OUT. 2009 RACK AND PINION WENT OUT, REPLACED IT, THEN ONE YEAR LATER WENT OUT AGAIN.U JOINT WENT OUT ABOUT SAME TIME. AND IGNITION STUCK AND COULDN'T TAKE OUT OF GEAR OR TURN OFF. FUEL LINE UNCLIPPED AND DUMPED ALL MY GAS,2010 TRANSMISSION WENT OUT. NOW MY PASSENGER SIDE HUB ASSEMBLY HAS GONE OUT FOR FIRST TIME WITH ABS LIGHT ON AND WHEEL CLANKING AND SEPARATING. RACK AND PINION BLOWN ALSO. REPAIRS NOT CHEAP, AND ALWAYS HAPPENS AT FINANCIALLY BAD TIME. SO NOW IT SITS IN DRIVEWAY BROKE DOWN AND I'M TRYING TO FIND A HUB FOR CHEAP SO I CAN GET AROUND AGAIN TO WORK ETC. SEEMS LIKE EVERYTIME I FIX SOMETHING ANOTHER PART GOES OUT. NEVER HEARD ABOUT ANY RECALL PROBLEMS TILL NOW, AND WOULD LIKE TO KNOW ABOUT ANY OPTIONS OF GETTING REPAIR. ITS COSTING ME WEEKS OF OFF TIME FROM WORK. AND BILLS PILING UP, RENT PAST DUE, NO MONEY TO REPAIR, AND AFFECTING MY COULD'VE LIFE. ANY HELP APPRECIATED. I LIKE CHEVY, BUY JUST FEEL LIKE MINE SEEMS TO HAVE ALLOT OF PROBLEMS THAT HAS BEEN DESCRIBED IN YOUR PAGE I READ. IN FACT HAD EVERY PROBLEM LISTED PLUS .PLEASE HELP IF YOU CAN. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE VEHICLE HAS EXPERIENCED SEVERAL FAILURES SINCE THE TIME OF PURCHASE. FUEL IS LEAKING FROM UNDERNEATH THE VEHICLE AND THE TIRE RODS AND WHEEL BEARINGS HAD TO BE REPLACED. THE CURRENT MILEAGE IS 90,000 AND FAILURE MILEAGE WAS 66,000.
THE OWNER COMPLAINED ABOUT A BRAKE PROBLEM. WHEN APPLYING THE BRAKES THEY HARDENED, AND THE VEHICLE WOULD NOT STOP. ALSO THE OWNER CHANGED THE BRAKE PADS, ROTORS, AND BLED THE BRAKES. CURRENTLY, THE VEHICLE STILL DOESN'T HAVE MUCH BRAKING POWER. *AK THE PROBLEM WAS FOUND TO BE THE RIGHT FRONT BEARING AND THE HUB SENSOR.…
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THE OWNER COMPLAINED ABOUT A BRAKE PROBLEM. WHEN APPLYING THE BRAKES THEY HARDENED, AND THE VEHICLE WOULD NOT STOP. ALSO THE OWNER CHANGED THE BRAKE PADS, ROTORS, AND BLED THE BRAKES. CURRENTLY, THE VEHICLE STILL DOESN'T HAVE MUCH BRAKING POWER. *AK THE PROBLEM WAS FOUND TO BE THE RIGHT FRONT BEARING AND THE HUB SENSOR. *SC *JB
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
2EA04011 · 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.