NHTSA owner reports · September 18, 2026 snapshot.
Tires complaints
20 reportsClear category filter154,000 miles · Jun 29, 2023
TiresWheels
The contact owns a 2001 Chevrolet Silverado 1500 equipped with Kelly Tires, Tire Line: Edge, Tire Size: 245/75/R16, DOT Number: PJUYJH1R1918. The contact stated that upon exiting the vehicle, there was a loud boom sound that came from the vehicle. Upon inspection, the contact discovered that the front passenger’s side tire had e…
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The contact owns a 2001 Chevrolet Silverado 1500 equipped with Kelly Tires, Tire Line: Edge, Tire Size: 245/75/R16, DOT Number: PJUYJH1R1918. The contact stated that upon exiting the vehicle, there was a loud boom sound that came from the vehicle. Upon inspection, the contact discovered that the front passenger’s side tire had exploded. The contact stated that there was an excessive amount of rust between the rim and the tire. An independent mechanic was sent to the location and a spare tire was placed on the vehicle. The contact stated that the explosion of the tire caused the rim to be bent. The was concerned that the tire had been mounted improperly. The defective tire was not replaced. The manufacturer was notified of the failure. The vehicle failure mileage was approximately 154,000. The tire failure mileage was approximately 9,000.
NHTSA ODI #11529550
Mileage unknown · Sep 15, 2021
Tires
My tires have very little wear because I drive far less now. On I-75 in FL recently, while coming off the ramp and increasing speed, the steering wheel began to wobble back and forth violently. As the road surface was wet, I lost control briefly. Once home, I began investigating the problem. I went back to Pep Boys and they insp…
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My tires have very little wear because I drive far less now. On I-75 in FL recently, while coming off the ramp and increasing speed, the steering wheel began to wobble back and forth violently. As the road surface was wet, I lost control briefly. Once home, I began investigating the problem. I went back to Pep Boys and they inspected and said the tire was separated and they would give me a credit, but they've discontinued that model tire and I'd have to buy 2 new tires. I could not afford that. So they placed it on the rear and I left mad. A month later the steering wobble returned. I then went elsewhere to have it investigated and they said two more were separated. It turns out 3 of the 4 tires I bought are separated so much they are unsuitable for use on the front and make noticeable vibration in the rear when placed there. Date codes on all of my tires are within two sets of weeks of each other, 1717 and 2717 and all are from the same factory. I placed the best two of the 4 on the back and have to replace them all now as there's no way to use any on the front as it's dangerous. They've discontinued this line, but it needs a recall. Pep Boys is coping out of their responsibility. It is Pep Boys Futura Scrambler A/P, 265/75R16. The DOT code is U973PAM1717 and 2717.
NHTSA ODI #11433034
247,000 miles · Nov 17, 2016
StructureTires
TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 40 MPH, THE SPARE TIRE DISENGAGED FROM THE VEHICLE ONTO THE ROAD WITHOUT WARNING. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 247,000.
NHTSA ODI #10926667
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
Mileage unknown · Nov 3, 2012
Tires
BROUGHT A 2001 CHEVY SILVERADO 1500 IN FOR A SLOW LEAK IN THE FRONT DRIVERS SIDE TIRE. UPON MECHANIC TACKING TIRE OFF THE VEHICLE THE INSPECTION REVEALED THE INSIDE SIDE WALL SEAM IS SEPARATING AND ACTUALLY HAS A GAPS MEASURING 3/16' WIDE BY A FEW INCHES LONG ALL ALONG THE SEAM. UPON FURTHER INSPECTION THE REAR TIRE ON THE DRIVE…
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BROUGHT A 2001 CHEVY SILVERADO 1500 IN FOR A SLOW LEAK IN THE FRONT DRIVERS SIDE TIRE. UPON MECHANIC TACKING TIRE OFF THE VEHICLE THE INSPECTION REVEALED THE INSIDE SIDE WALL SEAM IS SEPARATING AND ACTUALLY HAS A GAPS MEASURING 3/16' WIDE BY A FEW INCHES LONG ALL ALONG THE SEAM. UPON FURTHER INSPECTION THE REAR TIRE ON THE DRIVERS SIDE ALSO REVEALS THE SAME SIDE WALL SEPARATION TEARS IN THE SEAM. THIS IS A GOODYEAR WRANGLER SR-A , P245-75-16. WITH A MANUFACTURERS DATE OF 2009. *TR
NHTSA ODI #10483267
98,000 miles · Sep 8, 2010
Tires
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 65 MPH THE CONTACT STATED THAT HE FELT A VIBRATION, DROVE THE VEHICLE ONTO THE SIDE OF THE ROAD AND NOTICED THAT THE DRIVERS SIDE FRONT TIRES WERE FLAT. HE PURCHASED FOUR TIRES TO REPLACE THE ORIGINAL TIRES AND TWO OF THE TIRES HAVE FAILED. THE TIRES ARE YOKOHAMA…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 65 MPH THE CONTACT STATED THAT HE FELT A VIBRATION, DROVE THE VEHICLE ONTO THE SIDE OF THE ROAD AND NOTICED THAT THE DRIVERS SIDE FRONT TIRES WERE FLAT. HE PURCHASED FOUR TIRES TO REPLACE THE ORIGINAL TIRES AND TWO OF THE TIRES HAVE FAILED. THE TIRES ARE YOKOHAMA GEOLANDER H/T SIZE P265/75R16. HE CHANGED THE TIRES TO HIS SPARE AND DROVE HIS VEHICLE HOME. THE DEALER NOR THE MANUFACTURER WERE CALLED. THE FAILURE MILEAGE WAS 98,000. UPDATED 12/10/10. *LJ THE CONSUMER STATED ALL OF THE VALVE STEMS WERE CRACKED. THE VALVE STEMS AND TIRES WERE REPLACED. THE CONSUMER STATED THE VALVE STEMS WERE THE PROBLEM, NOT THE TIRES. UPDATED 12/17/10*JB
NHTSA ODI #10354521
Mileage unknown · Mar 23, 2010
Tires
BLOWN OUT SIDEWALL MICHELIN LTX M/S TIRE
NHTSA ODI #10321672
95,455 miles · Jan 18, 2010
Tires
ON JANUARY 9TH I WAS DRIVING ON ROUTE 601, MILE MARKER 19,@ 45 MPH WHEN MY TIRE SEPARATED AND DISINTEGRATED WITH ONLY 25,000 MILES ON THEM. THE TIRE DAMAGED THE WHEEL WELL AND TRUCK BODY. TIRE: P265/75R16 114T M+S LONG TRAIL T/A, SKU# 4121-786, BFGOODRICH. I SPUN AROUND 180 DEGREES AND FORTUNATELY MY WIFE AND I WERE SAFE WITH O…
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ON JANUARY 9TH I WAS DRIVING ON ROUTE 601, MILE MARKER 19,@ 45 MPH WHEN MY TIRE SEPARATED AND DISINTEGRATED WITH ONLY 25,000 MILES ON THEM. THE TIRE DAMAGED THE WHEEL WELL AND TRUCK BODY. TIRE: P265/75R16 114T M+S LONG TRAIL T/A, SKU# 4121-786, BFGOODRICH. I SPUN AROUND 180 DEGREES AND FORTUNATELY MY WIFE AND I WERE SAFE WITH ONLY MINER DISCOMFORT IN NECK AND BACK AREAS. *TR
NHTSA ODI #10300161
113,000 miles · Oct 14, 2009
Tires
TL*THE CONTACT OWNS A 2001 CHEVY SILVERADO 1500. WHILE DRIVING 70 TO 75 MPH THE VEHICLE BEGAN SHAKING AND THEN THE REAR PASSENGER SIDE TIRE BLEW OUT CAUSING DAMAGE TO THE BACK QUARTER PANEL. A TOW TRUCK DRIVER REPLACED THE TIRE WITH A SPARE TIRE. THE REAR QUARTER PANEL OF THE VEHICLE WAS ALSO REPAIRED. TWO MONTH LATER, THE DRIVE…
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TL*THE CONTACT OWNS A 2001 CHEVY SILVERADO 1500. WHILE DRIVING 70 TO 75 MPH THE VEHICLE BEGAN SHAKING AND THEN THE REAR PASSENGER SIDE TIRE BLEW OUT CAUSING DAMAGE TO THE BACK QUARTER PANEL. A TOW TRUCK DRIVER REPLACED THE TIRE WITH A SPARE TIRE. THE REAR QUARTER PANEL OF THE VEHICLE WAS ALSO REPAIRED. TWO MONTH LATER, THE DRIVER SIDE REAR TIRE BLEW OUT CAUSING DAMAGE TO THE FENDER ABOVE THE WHEEL. THE TIRE DEALER THAT THE CONTACT PURCHASED THE TIRES FROM CONFIRMED THAT THERE WERE NO EXISTING RECALLS. THE CONTACT HAS NOT NOTIFIED THE MANUFACTURER AND THE VEHICLE HAS NOT BEEN REPAIRED. THE CURRENT AND FAILURE MILEAGES WERE 113,000.
NHTSA ODI #10287355
156,458 miles · Aug 11, 2009
Tires
SPARE TIRE HOLDING CABLE BROKE OFF AFTER HITTING A POTHOLE. TIRE FLEW OFF OF TRUCK INTO ONCOMING TRAFFIC. *TR
NHTSA ODI #10280087
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.
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