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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.

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When problems were reported

Mileage at the reported incident

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

Power Train complaints

19 reports
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87,000 miles · Mar 1, 2018
Power Train

WHILE DRIVING ON THE HIGHWAY ON US ROUTE 15 THE TRANSMISSION LET LOOSE. DOING 55MPH AND LOST DRIVE AND 3RD GEARS. FLUID AND PARTS WERE SPREAD ALL BEHIND MY TRUCK CAUSING A DANGEROUS SITUATION.

NHTSA ODI #11075687

Mileage unknown · Oct 11, 2016
Air BagsElectrical SystemElectronic Stability Control (esc)

EVAPORATED SYSTEM.

NHTSA ODI #10915372

213,090 miles · Apr 4, 2016
Electrical SystemEngine And Engine CoolingPower TrainCrashFire

TRANNY, ABS, COOLING SYSTEM, TAILGATE, ETC. I BOUGHT THE TRUCK 2003 DIDN'T EXCHANGE TITLE UNTIL LATER RECALL WHEN I FIRST BOUGHT IT UNDER 50,000 MILE WARRANTY. I FILE AN COMPLAIN RECALL REPAIR STILL HAVING SAME PROBLEM. SAD THING MY FATHER IS AN RETIRED EMPLOYEE IN DALLAS LOCATION. RESEARCHED THE RECALLS FROM PREVIOUSLY AND PRE…

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TRANNY, ABS, COOLING SYSTEM, TAILGATE, ETC. I BOUGHT THE TRUCK 2003 DIDN'T EXCHANGE TITLE UNTIL LATER RECALL WHEN I FIRST BOUGHT IT UNDER 50,000 MILE WARRANTY. I FILE AN COMPLAIN RECALL REPAIR STILL HAVING SAME PROBLEM. SAD THING MY FATHER IS AN RETIRED EMPLOYEE IN DALLAS LOCATION. RESEARCHED THE RECALLS FROM PREVIOUSLY AND PRESENT SAME RESULTS. THEY HAVE UNTIL 2 DAYS TO CONTACT ME @ [XXX] IN GOING TO THE WAREHOUSE AND RETURN THE VEHICLE TO THE OWNER, CFO, CEO WHOMEVER AND ASK FOR A FULL REFUND OR I'M FILING AN COMPLAINT AND SMALL CLAMS FOR 30 YRS WORTH. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #10853201

200,000 miles · Mar 10, 2016
Power TrainFire

TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING AT 50 MPH, THE VEHICLE EMITTED SMOKE. THE CONTACT STATED THERE WAS EXCESSIVE AMOUNTS OF TRANSMISSION FLUID UNDERNEATH THE VEHICLE. THE VEHICLE WAS TOWED TO THE RESIDENCE. THE CONTACT INSPECTED THE VEHICLE AND NOTICED THAT THE TRANSFER CAS…

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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING AT 50 MPH, THE VEHICLE EMITTED SMOKE. THE CONTACT STATED THERE WAS EXCESSIVE AMOUNTS OF TRANSMISSION FLUID UNDERNEATH THE VEHICLE. THE VEHICLE WAS TOWED TO THE RESIDENCE. THE CONTACT INSPECTED THE VEHICLE AND NOTICED THAT THE TRANSFER CASE WAS FRACTURED AROUND TRANSFER CASE HOUSING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 200,000.

NHTSA ODI #10845934

116,000 miles · Oct 2, 2014
Power TrainService BrakesStructureInjury

I STARTED NOTICING RUST SPOTS ON THE BODY OF THE TRUCK. THEN I REALIZED IT WAS RUSTING OUT HOLES IN THE TRUCK IN CERTAIN AREAS. AFTER I STARTED NOTICING THESE SPOTS, I WAS DRIVING DOWN THE ROAD TOWING MY LAWN EQUIPMENT AND HEADING TO MY NEXT JOBSITE. WHEN ALL THE SUDDEN I WENT TO HIT THE BRAKES AND NOTHING HAPPENED. THE TRUCK WO…

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I STARTED NOTICING RUST SPOTS ON THE BODY OF THE TRUCK. THEN I REALIZED IT WAS RUSTING OUT HOLES IN THE TRUCK IN CERTAIN AREAS. AFTER I STARTED NOTICING THESE SPOTS, I WAS DRIVING DOWN THE ROAD TOWING MY LAWN EQUIPMENT AND HEADING TO MY NEXT JOBSITE. WHEN ALL THE SUDDEN I WENT TO HIT THE BRAKES AND NOTHING HAPPENED. THE TRUCK WOULD NOT STOP AT ALL AND COURSE I WAS GOING DOWN HILL. SO I STARTED TO TRY AND SLOW DOWN THE TRUCK BY DOWNSHIFTING TO A LOWER GEAR AND WAS ABLE TO SLOW DOWN A FEW MILES PER HOUR BUT NOT NEAR ENOUGH. AS I WAS COMING AROUND A CURVE NOT LONG AFTER THE BRAKES STARTED FAILING. NOT TO FAR IN FRONT OF ME WAS STOPPED TRAFFIC. I TRIED TO DO EVERYTHING I COULD TO STOP BUT IT WAS NOT ENOUGH. I ONLY SLOWED DOWN TO 45 MPH BEFORE I WAS ABOUT TO HIT THE BACK OF A CAR HEAD ON. SO I DID THE ONLY OTHER THING I COULD TO MAYBE MAKE IT OUT WITHOUT A FATAL CRASH. I WENT OFF THE ROAD AROUND THE CAR AND HIT THE PARKING BRAKE AND NOTHING HAPPENED BECAUSE IT FAILED AS WELL. SO I TURNED THE TRUCK REAL SHARP TO DODGE THE TREES AND SLID SIDEWAYS FOR A WHILE AND THE TRUCK FINALLY CAME TO A STOP AND I WAS SO SICK I HAD A BAD PANIC ATTACK AND STARTED THROWING UP AND MY HEART FELT LIKE IT WAS BEING HIT BY A HAMMER AND MY BODY HURT SO BAD FROM THE TRUCK COMING TO A STOP AND ME SLAMMING INTO THE ARM REST AND THE SEAT BELT CUT MY NECK STOMACH AND CHEST. I GOT OUT AND LOOKED AT MY TRUCK AND NOTICED I HIT A PILE OF LOGS AND DAMAGED MY TIRES AND THE BODY OF MY TRUCK IN THE SEVERAL PLACES. THEN I TOOK IT TO A AUTO SHOP AND THEY FOUND OUT CHEVY DIDN'T PUT ANY CORROSIVE PROTECTION UNDER THE TRUCK OR ON PARTS. THE BRAKE LINES HAD BLEW OUT CAUSE OF THE RUST. ALL THE BRAKE LINES WERE SHOT ALONG WITH ALL THE OTHER BRAKE PARTS AND JUST ABOUT EVERYTHING UNDER THE TRUCK AND OUTSIDE THE TRUCK IS SOLID RUST. I COULD HAVE GOT KILLED IF I DIDN'T REACT WELL. NOW I PAY FOR A TRUCK I CAN'T DRIVE. *TR

NHTSA ODI #10641029

1,250,000 miles · Aug 18, 2014
Fuel System, GasolinePower Train

WHILE ATTEMPTING TO SHIFT FROM THIRD TO FOURTH THE ENGINE APPEARED TO HAVE A STUCK THROTTLE CABLE. PULLED THE TRUCK SAFELY OFF THE ROAD AND CHECK THE THROTTLE CABLE MAKING SURE IT WAS NOT BROKEN OR KINKED. I RESTARTED THE TRUCK AND THE RPMS AT IDOL WERE AT 2000 AND THEN I PLACED THE TRUCK INTO FIRST GEAR AND BEGAN TO MOVE FORWAR…

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WHILE ATTEMPTING TO SHIFT FROM THIRD TO FOURTH THE ENGINE APPEARED TO HAVE A STUCK THROTTLE CABLE. PULLED THE TRUCK SAFELY OFF THE ROAD AND CHECK THE THROTTLE CABLE MAKING SURE IT WAS NOT BROKEN OR KINKED. I RESTARTED THE TRUCK AND THE RPMS AT IDOL WERE AT 2000 AND THEN I PLACED THE TRUCK INTO FIRST GEAR AND BEGAN TO MOVE FORWARD TOWARDS MY HOME. AS I SHIFTED FROM 1 TO SECOND THE RPMS BEGAN TO RISE. AS I PLACED THE TRUCK INTO NEUTRAL THE ENGINE CONTINUED TO INCREASE IN RPMS TO 3000 AND THEN ONTO 4000. I PLACED THE TRUCK IN NEUTRAL AND ALLOW THE MOTION OF THE ENGINE TO PUSH THE TRUCK FORWARD AND USING THE BRAKES I WAS ABLE TO KEEP SPEEDS BELOW 45 AND WHEN THE TRUCK CAME TO A COMPLETE STOP THE ENGINE RPMS CONTINUED TO RISE ABOVE 4000. AFTER GETTING THE TRUCK HOME AND INSPECTION OF THE THROTTLE BODY, A HALF CUP MOVABLE PLATE WAS FOUND ATTACHED TO THE BUTTERFLY..THIS HAD PREVENTED THE BUTTERFLY TO CLOSE AND HAD TORN FROM THE BUTTERFLY PLATE. I HAVE NOT FOUND ANY DOCUMENTATION ON THIS PLATE OR CUP ON ANY SITES NOR IS IT MENTIONED IN ANY OWNER MANUALS. I WAS LUCKY, BUT OTHERS WHO ARE NOT MECHANICALLY INCLINED MAY NOT KNOW WHAT TO DO OR EVEN AN INCREASE CHANCE OF AN ACCIDENT WHICH COULD RESULT IN A DEATH OR INJURY. *TR

NHTSA ODI #10626210

180,000 miles · Apr 11, 2014
Power Train

TRANSMISSION LOST 1ST AND REVERSE. SPOKE WITH TRANSMISSION MECHANIC AND LEARNED THAT THE GM 4L60E USES "PRESSED POWDERED METAL" TO MANUFACTURE THE SUNSHELL IN THE 4L60E. LEARNED THAT MECHANICS REFER TO THE 4L60E TRANSMISSION AS A "140 THOUSAND TO 160 THOUSAND MILE PART" REQUIRING A VERY EXPENSE REBUILD OR REPLACE. ALSO LEARNED T…

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TRANSMISSION LOST 1ST AND REVERSE. SPOKE WITH TRANSMISSION MECHANIC AND LEARNED THAT THE GM 4L60E USES "PRESSED POWDERED METAL" TO MANUFACTURE THE SUNSHELL IN THE 4L60E. LEARNED THAT MECHANICS REFER TO THE 4L60E TRANSMISSION AS A "140 THOUSAND TO 160 THOUSAND MILE PART" REQUIRING A VERY EXPENSE REBUILD OR REPLACE. ALSO LEARNED THAT AFTERMARKET SUNSHELLS ARE AVAILABLE IN CASE HARDENED STEEL FOR ABOUT $50.00 USD. *JS

NHTSA ODI #10579183

88,000 miles · Aug 26, 2013
Power TrainService Brakes

THIS TRUCK HAS BEEN A NIGHTMARE CONCERNING ALL ASPECTS OF BRAKING SYSTEM. FIRST AT 44,000 ABS SENSORS NEEDED TO BE REPLACED, THEN AT 53,400 ALL 4 NEW ROTORS AND PADS ALL THE WAY AROUND, 82,000 MILES PARKING BRAKE NEEDS REPLACED, 81,000 FRONT AXLE SEAL LEAKING, THEN AT APPROXIMATELY 88,000 MILES BRAKE LINES POPS WITH TRAILER ATT…

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THIS TRUCK HAS BEEN A NIGHTMARE CONCERNING ALL ASPECTS OF BRAKING SYSTEM. FIRST AT 44,000 ABS SENSORS NEEDED TO BE REPLACED, THEN AT 53,400 ALL 4 NEW ROTORS AND PADS ALL THE WAY AROUND, 82,000 MILES PARKING BRAKE NEEDS REPLACED, 81,000 FRONT AXLE SEAL LEAKING, THEN AT APPROXIMATELY 88,000 MILES BRAKE LINES POPS WITH TRAILER ATTACHED. TRUCK IS TOWED TO GARAGE ONLY TO FIND THAT BRAKE LINES ARE RUSTY AND POPPED. ALL LINES WERE SUPPOSED TO BE REPLACED TOTAL COST OVER $1,000. AT 96,600 NEED FRONT ROTORS AND REAR BRAKES, AT 126,00 NEED REAR ROTORS AND FRONT BRAKES AND 1 ORIGINAL BRAKE LINE FROM REAR TO FRONT AND RIGHT FRONT THAT NEVER WAS REPLACED. COST 268.00. USED DIFFERENT GARAGES FOR WORK AND BOTH HAVE HAD TROUBLE REPLACING HYDRAULIC LINES AND ONE IS A STATE INSPECTION STATION. BRAKING SYSTEM HAS COST ME A FORTUNE AND I WILL NOT BUY ANOTHER CHEVY DUE TO HIGH REPAIR COST. TRUCK WAS NOT NEGLECTED AND SERVICED REGULARLY. HAD TO REPLACE TRANSMISSION AT 114,000 MILES WHICH LEFT ME STRANDED ONCE AGAIN. *TR

NHTSA ODI #10537354

178,000 miles · Feb 3, 2012
Power Train

WHILE IN MOTION, A COMPONENT IN THE DIFFERENTIAL FAILED, CREATING AN INTERFERENCE CONDITION LOCKING UP MY REAR END. LUCKILY I WAS NOT TRAVELING AT HIGHWAY SPEEDS, AND WAS JUST AROUND TOWN, TRAVELING AT ABOUT 30 MPH. THERE WAS NO WARNING OF PARTS FAILING. THERE WAS AMPLE GEAR OIL IN THE REAR END, AND MAINTENANCE WAS NOT A FACTOR …

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WHILE IN MOTION, A COMPONENT IN THE DIFFERENTIAL FAILED, CREATING AN INTERFERENCE CONDITION LOCKING UP MY REAR END. LUCKILY I WAS NOT TRAVELING AT HIGHWAY SPEEDS, AND WAS JUST AROUND TOWN, TRAVELING AT ABOUT 30 MPH. THERE WAS NO WARNING OF PARTS FAILING. THERE WAS AMPLE GEAR OIL IN THE REAR END, AND MAINTENANCE WAS NOT A FACTOR AS I DID A GEAR OIL CHANGE THIS PAST SUMMER. I SELDOM USE THIS VEHICLE TO TOW AND IT HAS NEVER SEEN A PLOW OR OVERLY ROUGH DRIVING CONDITIONS. *KB

NHTSA ODI #10446582

26,000 miles · Nov 11, 2008
Engine And Engine CoolingPower TrainService Brakes, Hydraulic

NORMAL DRIVING LESS THAN 10 MILES. THE FAILURES ARE MANY AND OFTEN. TRANSMISSION FAILURES EVERY FEW THOUSAND MILES. ALWAYS LEAKS TRANS FLDS ALL OVER STREETS AND DRIVEWAYS. SERVICE ENGINE LIGHT ON. CHEVROLET DEALER ERASED FAILURE AND DIAGNOSTIC CODES TO GOUGE CONSUMER, MANY TIMES. PARKING BRAKE CABLE SNAPPED IN TWO ON DRIVEWAY.…

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NORMAL DRIVING LESS THAN 10 MILES. THE FAILURES ARE MANY AND OFTEN. TRANSMISSION FAILURES EVERY FEW THOUSAND MILES. ALWAYS LEAKS TRANS FLDS ALL OVER STREETS AND DRIVEWAYS. SERVICE ENGINE LIGHT ON. CHEVROLET DEALER ERASED FAILURE AND DIAGNOSTIC CODES TO GOUGE CONSUMER, MANY TIMES. PARKING BRAKE CABLE SNAPPED IN TWO ON DRIVEWAY. ABS FAILURES AT LOW SPEEDS AND ENGINE KLACKS LOUD WHEN STARTING. I AM ORIGINAL OWNER OF A DEFECTIVE 2001 CHEVROLET SILVERADO. THE LAST TIME GMPP WITH GM DEALER REPAIR THE UNDERWARRANTY REPAIRS TOOK 6 WEEKS THERE ARE ONLY 26.000 MILES ON THIS TRUCK. OBVIOUSLY THIS IS A DEFECT IN ITS DESIGN AND APPLICATION. (SEE PTIOR COMPLAINTS) TIRES FLEW OFF, ALTERING OF SERVICE CONTRACTS ON AND ON. *TR

NHTSA ODI #10248431

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

2

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.