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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

Tires complaints

20 reports
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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

120,000 miles · Oct 12, 2008
Air BagsParking BrakeTiresCrashInjury

I WAS IN A CAR ACCIDENT. WHILE DRIVING, I DON'T KNOW WHAT HAPPENED BUT SOMETHING CAUSED MY TRUCK TO ROLL OVER. EARLIER THAT DAY I REMEMBER THAT MY PARKING BRAKE WOULD NOT WORK. I ALSO HAD SOME TROUBLE PUTTING THE GEAR INTO PARK. MY AIRBAGS DIDN'T DEPLOY DURING THIS ACCIDENT, AND I WAS DRIVING WITH CRUISE CONTROL ON IF THAT HAS A…

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I WAS IN A CAR ACCIDENT. WHILE DRIVING, I DON'T KNOW WHAT HAPPENED BUT SOMETHING CAUSED MY TRUCK TO ROLL OVER. EARLIER THAT DAY I REMEMBER THAT MY PARKING BRAKE WOULD NOT WORK. I ALSO HAD SOME TROUBLE PUTTING THE GEAR INTO PARK. MY AIRBAGS DIDN'T DEPLOY DURING THIS ACCIDENT, AND I WAS DRIVING WITH CRUISE CONTROL ON IF THAT HAS ANY BEARING ON THIS. ALSO, MY FRONT TIRES WERE ALWAYS NEEDING AIR. *TR

NHTSA ODI #10245168

103,000 miles · Aug 11, 2008
Tires

COPPER TIRES THE TREAD IS COMING APART BIG RIPS IN LUGS DOT# 3D11-CN6-4905 BOUGHT IN JULY 13-06 ALL 4 TIRES. *TR

NHTSA ODI #10237657

68,549 miles · May 9, 2008
Tires

MY SPARE TIRE SUPPORT SYSTEM FAILED CAUSING THE TIRE TO FALL FROM UNDERNEATH THE VEHICLE. I WAS TRAVEL AT ABOUT 45 MPH, LUCKILY NO ONE WAS BEHIND ME AT THE TIME. THE TIRE BOUNCED UP OFF THE PAVEMENT BUT STAYED IN MY LANE. THIS SUPPORT SYSTEM USES A 3/16" WIRE FOR IT SUPPORTING THE WEIGHT OF THE SUSPENDED TIRE. ARE THERE ANY REC…

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MY SPARE TIRE SUPPORT SYSTEM FAILED CAUSING THE TIRE TO FALL FROM UNDERNEATH THE VEHICLE. I WAS TRAVEL AT ABOUT 45 MPH, LUCKILY NO ONE WAS BEHIND ME AT THE TIME. THE TIRE BOUNCED UP OFF THE PAVEMENT BUT STAYED IN MY LANE. THIS SUPPORT SYSTEM USES A 3/16" WIRE FOR IT SUPPORTING THE WEIGHT OF THE SUSPENDED TIRE. ARE THERE ANY RECALLS ON THIS SUPPORT SYSTEM? [XXX] *TR INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #10227153

Mileage unknown · Feb 26, 2008
TiresCrashInjury

DRIVING ON THE FREEWAY DOING 50MPH IS A SEVERE STORM WHEN THE RIGHT REAR TIRE SUFFERED A BELT SEPARATION CAUSING SPIN AND HITTING BACKWARDS INTO A CONCRETE CENTER DIVIDE. THE COLLISION WITH THE DIVIDE CAUSED OVER $7500 WORTH OF DAMAGE. IT WAS REPORTED TO THE MANUFACTURER - THIS TIRE WAS A SUPER SWAMPER RADIAL TSL 33X14.5 R16 WI…

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DRIVING ON THE FREEWAY DOING 50MPH IS A SEVERE STORM WHEN THE RIGHT REAR TIRE SUFFERED A BELT SEPARATION CAUSING SPIN AND HITTING BACKWARDS INTO A CONCRETE CENTER DIVIDE. THE COLLISION WITH THE DIVIDE CAUSED OVER $7500 WORTH OF DAMAGE. IT WAS REPORTED TO THE MANUFACTURER - THIS TIRE WAS A SUPER SWAMPER RADIAL TSL 33X14.5 R16 WITH APPROXIMATELY 24K MILES ON THEM. *TR

NHTSA ODI #10219243

Mileage unknown · Dec 21, 2007
Tires

I HAVE 4 FIRESTONE WHICH I BELIEVE TO BE DEFECTIVE. THEY ARE ABOUT 6 YEARS OLD BUT IN THE LAST 3 YEARS I HAVE ONLY DRIVEN THEM ABOUT 3,000 MILES. I RECENTLY DISCOVERED A SIDEWALL SEPARATION ON ALL 4 OF THESE TIRES ON THE OUTSIDE OF THE TIRES. I HAVE REMOVED THE TIRES AND REPLACED THEM WITH GOODYEAR TIRES. I HAVE SAVED THE OL…

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I HAVE 4 FIRESTONE WHICH I BELIEVE TO BE DEFECTIVE. THEY ARE ABOUT 6 YEARS OLD BUT IN THE LAST 3 YEARS I HAVE ONLY DRIVEN THEM ABOUT 3,000 MILES. I RECENTLY DISCOVERED A SIDEWALL SEPARATION ON ALL 4 OF THESE TIRES ON THE OUTSIDE OF THE TIRES. I HAVE REMOVED THE TIRES AND REPLACED THEM WITH GOODYEAR TIRES. I HAVE SAVED THE OLD TIRES FOR FURTHER EVALUATION. *TR

NHTSA ODI #10212497

Mileage unknown · Nov 27, 2007
Tires

BRAND NEW SET OF HANKOOK WAS INSTALLED PROFESSIONALLY AND INFLATION WAS CHECKED EVERY WEEK. SIDEWALL SEPARATION OCCURRED 1 MONTH (2,000 MILES) AFTER INSTALLATION RESULTING IN A LARGE KNOT ON THE SIDEWALL. CURRENTLY TRYING TO CONTACT RETAILER AND MANUFACTURER FOR REPLACEMENT. *TR

NHTSA ODI #10210075

Mileage unknown · Dec 11, 2003
Tires

VEHICLE SHIMMIED AT 45 MPH. FRONT DRIVER'S SIDE TIRE HAD A SPLIT IN IT SIMILAR TO THE FIRESTONE TIRE DEFECT. *AK

NHTSA ODI #10050434

Mileage unknown · May 20, 2002
Tires

WHILE TRAVELING 71 MPH LEFT REAR TIRE DISINTEGRATED WITH NO WARNING. TIRES HAD 30% WEAR WITH MULTIPLE BREAKS ON INSIDE OF TIRE. *AK THE CONSUMER EXPERIENCED SEVERAL FIRESTONE TIRE SEPARATIONS AND PAID FOR FOUR TIRES THAT WERE REPLACED. THE CONSUMER STATES THE TIRES WERE DEFECTIVE AND WAS REQUESTING REIMBURSEMENT FROM THE TIRE …

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WHILE TRAVELING 71 MPH LEFT REAR TIRE DISINTEGRATED WITH NO WARNING. TIRES HAD 30% WEAR WITH MULTIPLE BREAKS ON INSIDE OF TIRE. *AK THE CONSUMER EXPERIENCED SEVERAL FIRESTONE TIRE SEPARATIONS AND PAID FOR FOUR TIRES THAT WERE REPLACED. THE CONSUMER STATES THE TIRES WERE DEFECTIVE AND WAS REQUESTING REIMBURSEMENT FROM THE TIRE MANUFACTURER. ( FIRESTONE LT265/75R16) *YH

NHTSA ODI #8010080

Mileage unknown · Sep 24, 2001
Tires

TIRES SIZE P245R7516 THAT COMES WITH VEHICLE IS NOT AN APPROPIATE TIRE FOR THIS VEHICLE . APPROPRIATE TIRE SIZE IS LT245R7516. ALSO, OTHER TIRES ARE TOO SMALL FOR THIS VEHICLE, AND GMC FAILED TO PUT APPROPIATE TIRES ON VEHICLE. CONTACTED GMC, THEY TOOK COMPLAINT, AND STATED IT WAS A SALES PROBLEM.*AK

NHTSA ODI #896751

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.