IllustrationHYDRAULIC BRAKE LINE ROTTED OUT CAUSING ME TO LOOSE MY BRAKES. HAPPEN ON THE HIGHWAY. ALMOST REAR END THE CAR IN FRONT OF ME. DEALER SAYS THIS IS NORMAL WEAR DUE SALT ON THE ROADS. 2001 CHEVY SILVERADO 1500. 93,000 MILES. *TR
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.
About this comparison →How this year compares
Owner complaints by model year
Compare all Silverado 1500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
290–25K
3825–50K
7150–75K
8075–100K
102100–150K
65150K+
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
Service Brakes, Hydraulic complaints
147 reportsTL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 5 MPH, UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION OCCURRED. THE CONTACT CALLED THE MANUFACTURER IN REFERENCE TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK) AND WAS INFORMED THAT THE VIN WAS EXCLUDED FROM THE RECALL. THE CONTACT…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 5 MPH, UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION OCCURRED. THE CONTACT CALLED THE MANUFACTURER IN REFERENCE TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK) AND WAS INFORMED THAT THE VIN WAS EXCLUDED FROM THE RECALL. THE CONTACT WOULD BE RESPONSIBLE FOR THE REPAIRS AND IS IN THE PROCESS OF HAVING THE VEHICLE INSPECTED BY AN AUTHORIZED DEALER. THE FAILURE AND CURRENT MILEAGES WERE 39,000.
REAR DISC BRAKE PADS PREMATURE WEAR DUE TO FAILURE OF BRAKE PISTON TO RETRACT. BOTH REAR DISC BRAKES PISTON FAILED TO RETRACT NORMALLY. INSTALLATION OF NEW PADS CAUSED EXTREME HEATING OF ROTOR. REPLACED BOTH REAR DISC BRAKE FLOATING CALIPERS WITH REBUILT UNITS THAT HAD GREASE UNDER OUTER PISTON SEAL TO PREVENT RUST TO FIX PRO…
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REAR DISC BRAKE PADS PREMATURE WEAR DUE TO FAILURE OF BRAKE PISTON TO RETRACT. BOTH REAR DISC BRAKES PISTON FAILED TO RETRACT NORMALLY. INSTALLATION OF NEW PADS CAUSED EXTREME HEATING OF ROTOR. REPLACED BOTH REAR DISC BRAKE FLOATING CALIPERS WITH REBUILT UNITS THAT HAD GREASE UNDER OUTER PISTON SEAL TO PREVENT RUST TO FIX PROBLEM! *TR
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). SEVERAL YEARS LATER, THE CONTACT WOULD CONSISTENTLY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THE FAILURE CAUSED INCREASED STOPPING DISTANCES DUR…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). SEVERAL YEARS LATER, THE CONTACT WOULD CONSISTENTLY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THE FAILURE CAUSED INCREASED STOPPING DISTANCES DURING LOW SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH. THE DEALER STATED THAT BECAUSE THEY THOROUGHLY CLEANED THE WHEEL SPEED SENSOR MOUNTING SURFACE ON THE BEARING, THEY WOULD NOT ASSUME RESPONSIBILITY FOR ANY ADDITIONAL REPAIRS. AS OF MARCH 12, 2009, THE VEHICLE HAS NOT BEEN REPAIRED. THE MANUFACTURER DID NOT ASSIST. THE FAILURE MILEAGE WAS 75,000 AND CURRENT MILEAGE WAS 109,000.
NHTSA RECALL CAMPAIGN NUMBER: 05086 WAS DONE ON MY 2001 CHEVY. SILVERADO ON 11 OCT. 05 AT 59,952 MILES. NO PARTS WERE CHANGED OUT. JUST CLEANED THE ABS SENSORS. ALL HAS WORKED GOOD UNTIL AUGUST 2008. I HAVE AT LEAST 4 OCCURRENCES A WEEK AT SPEEDS OF 1 TO 6 MPH. THIS HAPPENS EACH TIME I DRIVE THE TRUCK SINCE 8-01-08 TO TODAY…
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NHTSA RECALL CAMPAIGN NUMBER: 05086 WAS DONE ON MY 2001 CHEVY. SILVERADO ON 11 OCT. 05 AT 59,952 MILES. NO PARTS WERE CHANGED OUT. JUST CLEANED THE ABS SENSORS. ALL HAS WORKED GOOD UNTIL AUGUST 2008. I HAVE AT LEAST 4 OCCURRENCES A WEEK AT SPEEDS OF 1 TO 6 MPH. THIS HAPPENS EACH TIME I DRIVE THE TRUCK SINCE 8-01-08 TO TODAY. I'VE BEEN TOLD MY CHEVY. DEALER THAT THIS IS A ONE TIME CLEAN/FIX AND CANNOT BE DONE AGAIN. THAT I COULD DISABLE IT AND THE ABS LIGHT WOULD REMAIN ON AND THE ABS WOULD NOT ACTIVATE. TO HAVE THEM CLEAN OR REPAIR WOULD BE AT MY EXPENSE BECAUSE I NO LONGER HAVE A WARRANTY ON MY TRUCK. I HAVE A 2001 CHEVY. IMPALA THAT HAS HAD THE SAME PROBLEM WITH THE ABS AND HAD TO HAVE BOTH FRONT HUBS REPLACED AT MY EXPENSE. I KEEP MY RECEIPTS IN HOPES THAT IF THERE IS A RECALL I CAN BE REIMBURSED. I HOPE THAT WITH ALL THE OTHER COMPLAINTS THAT YOU WILL CONSIDER ANOTHER RECALL SO THIS PROBLEM CAN BE RESOLVED. THANK YOU *TR
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
FUEL GAUGE, ERRATIC MOSTLY WHEN FULL, GOES TO EMPTY (LOW FUEL LIGHT), GOES HALF WAY EVENTUALLY SLOWLY IT WILL GO BACK TO FULL, EMPTY. PARKED, DRIVING IN TRAFFIC. ALSO GM HAS PROBLEM WITH THE ABS SOLENOID STICKING CAUSING BRAKE LIGHT TO COME AND A CONSTANT HUMMING SOUND. TAHOES AND TRUCKS HAVE THIS PROBLEM. PARK BRAKE FAILURE. *…
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FUEL GAUGE, ERRATIC MOSTLY WHEN FULL, GOES TO EMPTY (LOW FUEL LIGHT), GOES HALF WAY EVENTUALLY SLOWLY IT WILL GO BACK TO FULL, EMPTY. PARKED, DRIVING IN TRAFFIC. ALSO GM HAS PROBLEM WITH THE ABS SOLENOID STICKING CAUSING BRAKE LIGHT TO COME AND A CONSTANT HUMMING SOUND. TAHOES AND TRUCKS HAVE THIS PROBLEM. PARK BRAKE FAILURE. *TR
THE ANTI-LOCK BRAKING SYSTEM JUST STARTED ACTIVATING WHEN I AM TRAVELING AT LOW SPEEDS. IT OCCURS EVERY SINGLE TIME I TRY TO STOP! HAVE NOT GOTTEN TO GET IT FIXED YET JUST STARTED LAST NIGHT WHEN IT MADE ME RUN INTO MY OWN GARAGE WRECKING MY GARAGE!! *TR
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. IN 2005, THE ANTILOCK BRAKING SYSTEM WOULD ENGAGE WHILE DRIVING 20 MPH. THIS ALSO INCREASED THE STOPPING DISTANCE OF THE VEHICLE, WHICH EVENTUALLY LED TO A MINOR CRASH. A POLICE REPORT WAS FILED. THE CONTACT TOOK THE VEHICLE TO A REPAIR SHOP. BODY WORK WAS PERFORMED, BUT …
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. IN 2005, THE ANTILOCK BRAKING SYSTEM WOULD ENGAGE WHILE DRIVING 20 MPH. THIS ALSO INCREASED THE STOPPING DISTANCE OF THE VEHICLE, WHICH EVENTUALLY LED TO A MINOR CRASH. A POLICE REPORT WAS FILED. THE CONTACT TOOK THE VEHICLE TO A REPAIR SHOP. BODY WORK WAS PERFORMED, BUT NO REPAIRS WERE MADE TO THE BRAKING SYSTEM. AFTER THE CRASH, THE CONTACT BEGAN TO NOTICE THAT THE ABS WOULD RANDOMLY ENGAGE WHILE DRIVING AT LOW SPEEDS. APPROXIMATELY ONE MONTH LATER, HE RECEIVED A RECALL NOTICE RELATING TO THE ABS. HE TOOK THE VEHICLE TO A DEALER AND THEY STATED THAT IT COULD NOT BE REPAIRED BECAUSE IT WAS A PRODUCT LIABILITY. THEY FURTHER STATED THAT A GM REPRESENTATIVE NEEDED TO INSPECT THE VEHICLE PRIOR TO IT BEING REPAIRED. THE CONTACT TOOK THE VEHICLE TO A DIFFERENT GM DEALER AND THEY REPAIRED THE VEHICLE. APPROXIMATELY SIX OR SEVEN MONTHS LATER, THE ABS FAILURE RECURRED. HE TOOK THE VEHICLE BACK TO THE DEALER AND WAS INFORMED THAT AN ENTIRELY NEW BRAKING SYSTEM WAS NEEDED. THE DEALER REPLACED THE ROTORS AND SHOCKS; HOWEVER, THE FAILURE HAS BEGUN TO RECUR A YEAR AND A HALF LATER. THE ABS IS CURRENTLY ENGAGING AGAIN AND ALMOST CAUSES REAR END CRASHES. THE CONTACT BELIEVES THAT A SECONDARY RECALL NEEDS TO BE ISSUED TO PROPERLY REPAIR THIS DEFECT. THE NHTSA CAMPAIGN ID NUMBER WAS UNKNOWN. THE FAILURE MILEAGE WAS 50,000 AND CURRENT MILEAGE WAS 71,000.
THE FRONT WHEEL HUBS ON MY 2001 SILVERADO HAD TO BE REPLACED DUE TO ABS SENSORS NOT WORKING PROPERLY AT LOW BRAKE SPEEDS. I UNDERSTAND CHEVY ISSUED A RECALL CONCERNING THIS PROBLEM, I NEVER RECIEVED ANY NOTICE OF THIS PROBLEM OR ANY OTHER RECALL NOTICES. IT COST ME $744,99 TO HAVE THIS WORK DONE. I FEEL THIS IS A CHEVY DEFECT A…
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THE FRONT WHEEL HUBS ON MY 2001 SILVERADO HAD TO BE REPLACED DUE TO ABS SENSORS NOT WORKING PROPERLY AT LOW BRAKE SPEEDS. I UNDERSTAND CHEVY ISSUED A RECALL CONCERNING THIS PROBLEM, I NEVER RECIEVED ANY NOTICE OF THIS PROBLEM OR ANY OTHER RECALL NOTICES. IT COST ME $744,99 TO HAVE THIS WORK DONE. I FEEL THIS IS A CHEVY DEFECT AND THEY SHOULD HAVE BEEN MADE TO REPLACE THESE ABS SENSORS SINCE IT IS A SAFETY HAZARD AND THERE PROBLEM FROM THE ORGINAL DESIGN. MY TRUCK IS OF COURSE OUT OF WARRANTY AT 53,256 MILES.
Official recalls
0No 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
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.