NHTSA owner reports · September 18, 2026 snapshot.
Tires complaints
29 reportsClear category filter153,358 miles · Sep 4, 2026
Tires
The contact owns a 2020 Chevrolet Silverado 1500 equipped with Dextero Tires, Tire Line: DHT2, Tire Size: LT245/75/R16, DOT Number: Y9B0LL1X3718. The contact stated that while driving approximately 55 MPH, the vehicle was shaking abnormally, and the doors were rattling. The vehicle was not diagnosed or repaired. The vehicle was…
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The contact owns a 2020 Chevrolet Silverado 1500 equipped with Dextero Tires, Tire Line: DHT2, Tire Size: LT245/75/R16, DOT Number: Y9B0LL1X3718. The contact stated that while driving approximately 55 MPH, the vehicle was shaking abnormally, and the doors were rattling. The vehicle was not diagnosed or repaired. The vehicle was taken to the residence where the lug nuts were checked but no failure was found; however, the contact felt a large bulge on the front passenger’s side tire. The tire was not repaired. The contact stated that the failure persisted, and approximately a week later there was a bulge in the rear passenger’s side tire. The vehicle was taken to an independent mechanic, but the tires were no longer in stock. The vehicle was taken back to the residence, and all four tires were removed and inspected. The contact stated that the driver's side front and rear tires rolled, wobbled, and fell over, indicating treadwear issues. The manufacturer was not notified of the failure. The vehicle failure mileage was 153,358. The tire failure mileage was 11,000.
NHTSA ODI #11762213
93,000 miles · Jun 11, 2015
Tires
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500 EQUIPPED WITH GENERAL AMERI 660 AS TIRES (NA), SIZE: P255/70R16 (NA). WHILE DRIVING APPROXIMATELY 50 MPH, THERE WAS A LOUD THUMP SOUND NEAR THE REAR DRIVER SIDE TIRE AND THE CONTACT LOST CONTROL OF THE REAR OF THE VEHICLE. THE CONTACT PULLED OVER AND OBSERVED THAT THE TREAD SE…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500 EQUIPPED WITH GENERAL AMERI 660 AS TIRES (NA), SIZE: P255/70R16 (NA). WHILE DRIVING APPROXIMATELY 50 MPH, THERE WAS A LOUD THUMP SOUND NEAR THE REAR DRIVER SIDE TIRE AND THE CONTACT LOST CONTROL OF THE REAR OF THE VEHICLE. THE CONTACT PULLED OVER AND OBSERVED THAT THE TREAD SEPARATED FROM THE REAR DRIVER SIDE TIRE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT DEALER WHERE IT WAS DIAGNOSED THAT THE TREAD SEPARATED. THE TIRE WAS NOT REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE FAILURE MILEAGE WAS APPROXIMATELY 93,000 AND THE TIRE FAILURE MILEAGE WAS 15,000.
NHTSA ODI #10724683
Mileage unknown · Nov 5, 2014
Tires
DRIVING APPROXIMATELY 65 MPH ON HIGHWAY. DRIVER FRONT TIRE BLEW OUT. LOST CONTROL OF VEHICLE, LEFT THE ROAD ONTO THE SHOULDER. SIDEWALL OF TIRE BLOWN OUT AGAIN. THIS IS THE SECOND TIRE I HAVE HAD THIS HAPPEN TO IN THE LAST 2 MONTHS. IN BOTH CASES THE SIDE WALL HAS BLOWN OUT. *TR
NHTSA ODI #10652689
Mileage unknown · Nov 5, 2014
Tires
DRIVING APPROXIMATELY AT 65 MPH ON HIGHWAY WHEN REAR PASSENGER TIRE BLEW OUT. GOODYEAR WRANGLER LT265/75R16. THE SIDEWALL WAS BLOWN OUT AND I HAD TO REPLACE THE TIRE. *TR
NHTSA ODI #10652684
100,000 miles · Oct 11, 2012
Tires
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 5 MPH, THE SPARE TIRE DETACHED FROM UNDERNEATH THE VEHICLE DUE TO A FRACTURED CABLE WHICH WAS SEVERELY CORRODED. THE TIRE WAS IMMEDIATELY RELEASED ONTO THE ROAD. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 5 MPH, THE SPARE TIRE DETACHED FROM UNDERNEATH THE VEHICLE DUE TO A FRACTURED CABLE WHICH WAS SEVERELY CORRODED. THE TIRE WAS IMMEDIATELY RELEASED ONTO THE ROAD. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.
NHTSA ODI #10479741
81,989 miles · Sep 28, 2007
StructureTiresCrashInjury
THE SPARE TIRE FELL OFF OF MY 2000 CHEVROLET 1500 PICKUP TRUCK AND ROLLED INTO A SCHOOL BUS. THESE TIRES ARE SECURED UNDERTHE REAR OF THE TRUCK BY THE SAME TYPE OF CABLE THAT WAS INVOLVED IN THE ON GOING TAIL GATE CABLE RECALL. ALL CHEV AND GMC PICKUPS HAVE THESE DEFECTIVE CABLES HOLDING THE SPARES TIRE AND THEY ALL ARE EVENTUAL…
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THE SPARE TIRE FELL OFF OF MY 2000 CHEVROLET 1500 PICKUP TRUCK AND ROLLED INTO A SCHOOL BUS. THESE TIRES ARE SECURED UNDERTHE REAR OF THE TRUCK BY THE SAME TYPE OF CABLE THAT WAS INVOLVED IN THE ON GOING TAIL GATE CABLE RECALL. ALL CHEV AND GMC PICKUPS HAVE THESE DEFECTIVE CABLES HOLDING THE SPARES TIRE AND THEY ALL ARE EVENTUALLY GOING TO FAIL . *TR
NHTSA ODI #10204338
68,000 miles · Jul 2, 2007
Tires
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE VEHICLE HAS COOPER DOMINATOR SPORT A/T TIRES. THE CONTACT NOTICED AN AIR BUBBLE ON THE SIDEWALL OF THE FRONT DRIVER SIDE TIRE. THE TIRE STORE REPLACED THE TIRE. APPROXIMATELY FOUR MONTHS LATER, WHILE DRIVING 65 MPH, THE CONTACT HEARD A LOUD POP AND NOTICED THE TREAD HA…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE VEHICLE HAS COOPER DOMINATOR SPORT A/T TIRES. THE CONTACT NOTICED AN AIR BUBBLE ON THE SIDEWALL OF THE FRONT DRIVER SIDE TIRE. THE TIRE STORE REPLACED THE TIRE. APPROXIMATELY FOUR MONTHS LATER, WHILE DRIVING 65 MPH, THE CONTACT HEARD A LOUD POP AND NOTICED THE TREAD HAD SEPARATED ON THE DRIVER SIDE REAR TIRE. RECALL # 06T016000 (TIRES:TREAD/BELT) WAS FOUND. THE CURRENT MILEAGE IS 70,600 AND FAILURE MILEAGE WAS 68,000.
NHTSA ODI #10195132
209,808 miles · May 17, 2007
Tires
CONTINENTAL TIRES HAS IGNORED MY COMPLAINT. YESTERDAY I EXPERIENCED THE THIRD DELAMINATION, EXPLOSIVE OR CATASTROPHIC BLOWOUT OF A CONTINENTAL TIRE ON THE CHEVROLET PICKUP TRUCK IN THE PAST SEVEN MONTHS. IN EACH INCIDENT THE TREAD DETACHED AND DESTROYED THE REAR FENDER AND INNER FENDER LINING. SET OF FOUR CONTINENTAL T…
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CONTINENTAL TIRES HAS IGNORED MY COMPLAINT. YESTERDAY I EXPERIENCED THE THIRD DELAMINATION, EXPLOSIVE OR CATASTROPHIC BLOWOUT OF A CONTINENTAL TIRE ON THE CHEVROLET PICKUP TRUCK IN THE PAST SEVEN MONTHS. IN EACH INCIDENT THE TREAD DETACHED AND DESTROYED THE REAR FENDER AND INNER FENDER LINING. SET OF FOUR CONTINENTAL TIRES PURCHASED AT WAL-MART, LIVE OAK, FLORIDA, INSTALLED AND BALANCED ON 3 JANUARY 2003, INVOICE NUMBER 485700 95770. TRUCK MILEAGE 153249, INCLUDED TIRE WARRANTY. TIRES INSTALLED WERE BAR CODE 5134206727. ON 9/06 FIRST BLOWOUT AND CATASTROPHIC FAILURE WAS NORTHBOUND ON I-75 AT ADEL GEORGIA. LEFT REAR FENDER DESTROYED BY TREAD DETACHMENT. REPAIRS ACCOMPLISHED , MILEAGE 20,0913. ON 1/07 SECOND TIRE DAMAGE WAS TREAD DELAMINATION WHICH CAUSED A LARGE BUBBLE ON THE TREAD. BEFORE IMPENDING BLOWOUT TIRE WAS REPLACED , MILEAGE 206681. THIRD TIRE DAMAGE AND SECOND CATASTROPHIC BLOWOUT OCCURRED ON MARCH 14, 2007 NORTHBOUND ON I-75 NEAR ALACHUA, FLORIDA. RIGHT REAR FENDER DESTROYED BY TREAD DETACHMENT. TOWING CHARGE AND USED TIRE PURCHASE FROM A-1 TOWING, 14515 NW PEGGY RD. ALACHUA, FLORIDA 32615. 3/15/07 TODAY, I DROVE TO THE SAME TIRE MART AND HAD THE REMAINING CONTINENTAL TIRE OF THE ORIGINAL FOUR REMOVED. INVOICE NUMBER IN00289613, ACCOUNT NO. MCD2527. $353.04. I WILL RETAIN THIS CONTINENTAL TIRE FOR YOUR INSPECTION OR FOR MY FURTHER COMPLAINT. MILEAGE 209808, ACCOUNT NO. MCD3537. GENTLEMEN, I AM DISPLEASED WITH YOUR PRODUCT. I HAVE HAD THREE OF THE TIRES CAUSED ME MUCH INCONVENIENCE AND AGGRAVATION. FOR EACH INCIDENT, MY INSURANCE CARRIER (USAA) CHARGED ME A $250 DEDUCTIBLE FOR REPAIRS. THE ONE REMAINING TIRE I SHALL KEEP FOR YOUR INSPECTION AT YOUR CONVENIENCE. I HAVE ALSO RETAINED THE LAST TIRE THAT LOST ITS TREAD FOR YOUR EXAMINATION.*AK
NHTSA ODI #10191013
70,000 miles · Oct 5, 2006
Air BagsTiresCrashInjury
DT*: THE CONTACT STATED WHILE DRIVING 35 MPH, THE VEHICLE WAS INVOLVED IN A COLLISION WITH A ROADSIDE BARRIER. NEITHER AIR BAG DEPLOYED UPON IMPACT. THE CONTACT WAS TAKEN TO A HOSPITAL WITH NECK INJURIES, FRACTURES OF THE RIBS AND FOOT, AND FACIAL LACERATIONS. A POLICE REPORT WAS TAKEN, AND THE VEHICLE WAS CONSIDERED A TOTAL …
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DT*: THE CONTACT STATED WHILE DRIVING 35 MPH, THE VEHICLE WAS INVOLVED IN A COLLISION WITH A ROADSIDE BARRIER. NEITHER AIR BAG DEPLOYED UPON IMPACT. THE CONTACT WAS TAKEN TO A HOSPITAL WITH NECK INJURIES, FRACTURES OF THE RIBS AND FOOT, AND FACIAL LACERATIONS. A POLICE REPORT WAS TAKEN, AND THE VEHICLE WAS CONSIDERED A TOTAL LOSS. THE VEHICLE WAS NOT SEEN BY A DEALER. UPDATED 10/25/2006 - *NM
NHTSA ODI #10169996
84,559 miles · Jun 1, 2006
Tires
AFTER TRAVELING ABOUT 350 MILES ON I-95 & I-26 WE EXPERIENCED A BLOWOUT ON THE REAR TIRE. IT DID 1300.00 IN BODY DAMAGE TO OUR 2000 SILVERADO 1500 P/U'S REAR FENDER. AFTER REPLACING THE TIRE WITH THE SPARE WE CONTINUED TO OUR DESTINATION WHERE WE REPLACED ALL 4 TIRES WITH NEW ONES. THERE WAS STILL APPROX 8000 MILES LEFT ON TH…
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AFTER TRAVELING ABOUT 350 MILES ON I-95 & I-26 WE EXPERIENCED A BLOWOUT ON THE REAR TIRE. IT DID 1300.00 IN BODY DAMAGE TO OUR 2000 SILVERADO 1500 P/U'S REAR FENDER. AFTER REPLACING THE TIRE WITH THE SPARE WE CONTINUED TO OUR DESTINATION WHERE WE REPLACED ALL 4 TIRES WITH NEW ONES. THERE WAS STILL APPROX 8000 MILES LEFT ON THE WARRANTY, BUT WE PURCHASED A DIFFERENT BRAND. WE SAVED THE DEFECTIVE TIRE AND SENT IT TO THE MANUFACTURER WHO CLAIMED IT WAS ROAD HAZARD DAMAGE. WE DID NOT ENCOUNTER ANY ROAD HAZARD AND MAINTAINED THE CORRECT AIR PRESSURE AND TIRE ROTATION SCHEDULE. *NM
NHTSA ODI #10158788
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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