NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reports97,000 miles · Sep 20, 2007
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE BRAKE PEDAL EXTENDED TO THE FLOOR BOARD WHEN IT WAS DEPRESSED. THE MECHANIC STATED THAT THE REAR BRAKE LINES WERE CORRODED. THE BRAKE LINES WERE REPLACED. APPROXIMATELY SEVEN MONTHS LATER, THE FAILURE RECURRED. THE MECHANIC STATED THAT THE FRON…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE BRAKE PEDAL EXTENDED TO THE FLOOR BOARD WHEN IT WAS DEPRESSED. THE MECHANIC STATED THAT THE REAR BRAKE LINES WERE CORRODED. THE BRAKE LINES WERE REPLACED. APPROXIMATELY SEVEN MONTHS LATER, THE FAILURE RECURRED. THE MECHANIC STATED THAT THE FRONT BRAKE LINES WERE CORRODED AND THEY REPLACED THEM ONCE AGAIN. THE FAILURE MILEAGE WAS 97,000 AND CURRENT MILEAGE WAS 97,600. UPDATED 12/12/07
NHTSA ODI #10203529
55,000 miles · Sep 8, 2007
Fuel System, Other
FUEL GAUGE FAILURE WHEN VEHICLE IS IN "PARK". LOW FUEL SIGNAL GOES ON. THEN WHEN THE VEHICLE IS IN DRIVE, THE GAUGE GOES TO FULL. THEN EVENTUALLY THE GAUGE GOES TO THE LEVEL OF THE FUEL. *JB
NHTSA ODI #10202263
57,000 miles · Sep 4, 2007
Service Brakes, Hydraulic
THE BRAKE LINES FROM THE MASTER CYLINDER TO THE ABS PUMP RUSTED OUT AND FAILED. BRAKE LINE FAILURE RESULTED IN NO BRAKING ABILITY WHATSOEVER. ONE WAS REPLACED EARLIER THAN THE INCIDENT DATE BELOW - APPROXIMATELY 2/07. TRUCK WAS PARKED BOTH TIMES THEY FAILED SO NO ACCIDENT OR INJURY. GOT LUCKY, THIS IS USED AS A TOW VEHICLE FOR A…
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THE BRAKE LINES FROM THE MASTER CYLINDER TO THE ABS PUMP RUSTED OUT AND FAILED. BRAKE LINE FAILURE RESULTED IN NO BRAKING ABILITY WHATSOEVER. ONE WAS REPLACED EARLIER THAN THE INCIDENT DATE BELOW - APPROXIMATELY 2/07. TRUCK WAS PARKED BOTH TIMES THEY FAILED SO NO ACCIDENT OR INJURY. GOT LUCKY, THIS IS USED AS A TOW VEHICLE FOR A TRAILER. THE BRAKE LINES WERE REPLACED, THE OLD LINES ARE AVAILABLE. I DON'T HAVE THE VIN HANDY, CAN SUPPLY ON REQUEST. *TR
NHTSA ODI #10201771
Mileage unknown · Aug 25, 2007
Parking Brake
RECENT VEHICLE INSPECTION REJECTION DUE TO PARKING BRAKE FAILURE TO OPERATE ON 2000 CHEVROLET SILVERADO. THE PARKING BRAKE FAILED TO OPERATE AT A VERY LOW MILEAGE ON THIS VEHICLE. REPAIRS LED TO HUNDREDS OF DOLLARS. I AM AWARE OF A RECALL ON VEHICLES EQUIPPED WITH MANUAL TRANSMISSIONS, DID CHEVROLET EQUIP AUTO TRANSMISSIONS WITH…
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RECENT VEHICLE INSPECTION REJECTION DUE TO PARKING BRAKE FAILURE TO OPERATE ON 2000 CHEVROLET SILVERADO. THE PARKING BRAKE FAILED TO OPERATE AT A VERY LOW MILEAGE ON THIS VEHICLE. REPAIRS LED TO HUNDREDS OF DOLLARS. I AM AWARE OF A RECALL ON VEHICLES EQUIPPED WITH MANUAL TRANSMISSIONS, DID CHEVROLET EQUIP AUTO TRANSMISSIONS WITH A DIFFERENT PARKING BRAKE SYSTEM? THIS AUTO MAKER SHOULD STEP UP AND CORRECT THIS PROBLEM ON ALL AFFECTED VEHICLES,THANKS VR. *TR
NHTSA ODI #10200739
77,000 miles · Aug 24, 2007
Air BagsCrashInjury
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING 65 MPH, THE VEHICLE SPUN OUT AND STRUCK THE CENTER DIVIDER. THE AIR BAGS FAILED TO DEPLOY. THE ROAD CONDITIONS WERE WET AT THE TIME OF THE CRASH. ONE PASSENGER SUSTAINED INJURIES TO THE SHOULDERS AND CHEST ALONG WITH A SORE NECK. A POLICE REPORT WAS FILED. …
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING 65 MPH, THE VEHICLE SPUN OUT AND STRUCK THE CENTER DIVIDER. THE AIR BAGS FAILED TO DEPLOY. THE ROAD CONDITIONS WERE WET AT THE TIME OF THE CRASH. ONE PASSENGER SUSTAINED INJURIES TO THE SHOULDERS AND CHEST ALONG WITH A SORE NECK. A POLICE REPORT WAS FILED. THE CONTACT STATED THAT THE VEHICLE MAY BE DESTROYED. THE VEHICLE SUSTAINED EXTENSIVE FRONT END DAMAGE. THE CURRENT AND FAILURE MILEAGES WERE 77,000.
NHTSA ODI #10200691
233,400 miles · Aug 10, 2007
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING 65 MPH, THE BRAKES LOCKED WHEN THEY WERE DEPRESSED. THE VEHICLE SLID APPROXIMATELY THIRTY YARDS. THE ROAD CONDITIONS WERE CLEAR. THE DEALER HAS NOT INSPECTED THE VEHICLE. THERE IS A RECALL FOR THE ANTI-LOCK BRAKES (NHTSA CAMPAIGN ID # 00V055000), HOWEVER, TH…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE DRIVING 65 MPH, THE BRAKES LOCKED WHEN THEY WERE DEPRESSED. THE VEHICLE SLID APPROXIMATELY THIRTY YARDS. THE ROAD CONDITIONS WERE CLEAR. THE DEALER HAS NOT INSPECTED THE VEHICLE. THERE IS A RECALL FOR THE ANTI-LOCK BRAKES (NHTSA CAMPAIGN ID # 00V055000), HOWEVER, THE DEALER AND THE MANUFACTURER STATED THAT HIS VIN WAS NOT INCLUDED IN THE RECALL. THE CONTACT FELT THAT HIS VEHICLE SHOULD BE INCLUDED. THE CURRENT AND FAILURE MILEAGES WERE 233,400.
NHTSA ODI #10199045
129,832 miles · Jul 31, 2007
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE CLUTCH HYDRAULIC PUMP FAILED WHILE PULLING OUT OF HER DRIVEWAY. THE VEHICLE CANNOT BE MOVED OR REPAIRED. SHE HAS HAD THREE MECHANICS INSPECT THE VEHICLE AND THEY ALL STATED THAT IT CANNOT BE REPAIRED AND WAS DUE TO A MANUFACTURER DEFECT. GENERAL…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE CLUTCH HYDRAULIC PUMP FAILED WHILE PULLING OUT OF HER DRIVEWAY. THE VEHICLE CANNOT BE MOVED OR REPAIRED. SHE HAS HAD THREE MECHANICS INSPECT THE VEHICLE AND THEY ALL STATED THAT IT CANNOT BE REPAIRED AND WAS DUE TO A MANUFACTURER DEFECT. GENERAL MOTORS STATED THAT THEY CAN DO NOTHING TO ASSIST WITH THE FAILURE. THERE ARE NO RECALLS AVAILABLE FOR HER VEHICLE. THE FAILURE SPEED AND PURCHASE DATE WERE UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 129,832.
NHTSA ODI #10197958
54,000 miles · Jul 27, 2007
Parking BrakeCrash
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO. THE CONTACT NOTICED BRAKE FLUID LEAKING AND STATED THAT THE BRAKE PEDAL MUST BE DEPRESSED TO THE FLOOR IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER ON JULY 16, 2007. THE DEALER STATED THAT THE BRAKE LINES AND BRAKE PIPES NEEDED TO BE REPLACED. THE CONTACT D…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO. THE CONTACT NOTICED BRAKE FLUID LEAKING AND STATED THAT THE BRAKE PEDAL MUST BE DEPRESSED TO THE FLOOR IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER ON JULY 16, 2007. THE DEALER STATED THAT THE BRAKE LINES AND BRAKE PIPES NEEDED TO BE REPLACED. THE CONTACT DROVE THE VEHICLE INTO HER GARAGE DOOR AT 10 MPH. THE GARAGE DOOR HAS BEEN REPLACED. THE CURRENT MILEAGE WAS 59,000 AND FAILURE MILEAGE WAS 54,000.
NHTSA ODI #10197702
25,000 miles · Jul 23, 2007
Parking Brake
THE PARKING BRAKE SHOES ON MY 2000 CHEVROLET SILVERADO 1500 HAVE REQUIRED NUMEROUS REPLACEMENTS. I HAVE TO REPLACE THE PARKING BRAKE SHOES EVERY YEAR BEFORE HAVING MY TRUCK INSPECTED. EVEN AFTER BEING REPLACED, THE PARKING BRAKE BARELY HOLDS ON EVEN THE SLIGHTEST INCLINE. *TR
NHTSA ODI #10197177
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
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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