IllustrationBLOWN OUT SIDEWALL MICHELIN LTX M/S TIRE
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
What owners actually said
468 reportsINFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) I HAVE A 2001 CHEVY SILVERADO IN WHICH THERE IS AN ABS RECALL ON THIS TRUCK THAT THE CHEVY DEALER TOOK CARE OF BEFORE I GOT THE TRUCK ABOUT A YEAR AGO I STARTED TO REQUIRE MORE DISTANCE TO STOP BECAUSE THE ABS WAS COMING ON THOUGHT IT W…
Read full complaint
INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) I HAVE A 2001 CHEVY SILVERADO IN WHICH THERE IS AN ABS RECALL ON THIS TRUCK THAT THE CHEVY DEALER TOOK CARE OF BEFORE I GOT THE TRUCK ABOUT A YEAR AGO I STARTED TO REQUIRE MORE DISTANCE TO STOP BECAUSE THE ABS WAS COMING ON THOUGHT IT WAS THE SNOW BUT THEN I COMES ON EVERY NOW AND THEN STILL WHEN THERE IS NO SNOW OR ICE UNDER THE TRUCK IT SEEMS TO BE COMING ON AROUND 5 MPH IT DOES NOT COME ON ALL THE TIME NEITHER I HAVE CALLED CHEVY AND THEY SAID THAT IT HAS BEEN FIXED I THINK THERE SHOULD BE A BETTER MORE PERMANENT FIX OTHER THAN TAKING THE SENSOR OUT AND CLEANING IT AND PUTTING SOME GREASE IN IT I HAVE TALKED TO SOME OTHER PEOPLE WITH SAME TRUCK GUESS WHAT SAME PROBLEM THIS IS A RELATIVELY EASY FIX BUT I THINK THIS PROBLEM WITH THE CHEVY SHOULD BE LOOKED INTO FARTHER [XXX]. *TR
IN 2005 A RECALL WAS ISSUED FOR CERTAIN MODELS OF THE CHEVROLET SILVERADO 1500. THIS RECALL WAS DIRECTLY RELATED TO THE ABS SPEED SENSORS. AT SLOW SPEEDS THE ABS SYSTEM WOULD ACTIVATE CAUSING EXTENDED STOPPING PERIODS. THIS PROBLEM OCCURS EACH AND EVERY TIME THE BRAKES ARE APPLIED. THE CONSEQUENCES ARE AN UNWANTED INCREASE IN ST…
Read full complaint
IN 2005 A RECALL WAS ISSUED FOR CERTAIN MODELS OF THE CHEVROLET SILVERADO 1500. THIS RECALL WAS DIRECTLY RELATED TO THE ABS SPEED SENSORS. AT SLOW SPEEDS THE ABS SYSTEM WOULD ACTIVATE CAUSING EXTENDED STOPPING PERIODS. THIS PROBLEM OCCURS EACH AND EVERY TIME THE BRAKES ARE APPLIED. THE CONSEQUENCES ARE AN UNWANTED INCREASE IN STOPPING DISTANCE WHICH CAN LEAD TO TRAGEDY. TO CORRECT THE PROBLEM DEALERS WERE INSTRUCTED TO REMOVE THE WHEEL SPEED SENSORS, CLEAN THE MOUNTING SURFACE, AND RE-INSTALL. NO PARTS WERE REPAIRED OR REPLACED. IN THIS CASE THE RECALL PROCESS WAS PERFORMED AT APPROXIMATELY 65,000 MILES AND THE PROBLEM RE-OCCURRED AT APPROXIMATELY 89,000 MILES. GENERAL MOTORS WAS CONTACTED AND UNWILLING TO ASSIST IN ANY WAY. THIS PROBLEM WAS NOT FIXED PROPERLY DURING THE RECALL. THE SOLUTION WAS ONLY A TEMPORARY FIX AND THE PROBLEM CONTINUES TO RE-OCCUR ENDANGERING THE SAFETY OF ALL MOTORISTS. *TR
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO. WHENEVER THE CONTACT WOULD APPLY THE BRAKES AT A LOW SPEED THE ABS WHEEL SENSOR WOULD ACTIVATE INCREASING THE STOPPING DISTANCE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE CONTACT HAD THE FRONT ABS WHEEL SENSOR REPLACED. THERE WERE NO PRIOR WARNINGS. THE CURRE…
Read full complaint
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO. WHENEVER THE CONTACT WOULD APPLY THE BRAKES AT A LOW SPEED THE ABS WHEEL SENSOR WOULD ACTIVATE INCREASING THE STOPPING DISTANCE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE CONTACT HAD THE FRONT ABS WHEEL SENSOR REPLACED. THERE WERE NO PRIOR WARNINGS. THE CURRENT AND FAILURE MILEAGES WERE 90,000.
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO. WHENEVER THE CONTACT DROVE THE VEHICLE HE NOTICED THAT IT TOOK MORE THAN THE NORMAL PRESSURE IN ORDER TO DEPRESS THE ACCELERATOR PEDAL. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE THROTTLE BODY NEEDED TO BE REPLACED. THE CONTACT HAS NOTICED THE FAILURE SINCE THE VEHICLE…
Read full complaint
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO. WHENEVER THE CONTACT DROVE THE VEHICLE HE NOTICED THAT IT TOOK MORE THAN THE NORMAL PRESSURE IN ORDER TO DEPRESS THE ACCELERATOR PEDAL. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE THROTTLE BODY NEEDED TO BE REPLACED. THE CONTACT HAS NOTICED THE FAILURE SINCE THE VEHICLE WAS PURCHASED. THE CURRENT AND FAILURE MILEAGES WERE 110450.
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE ABS WAS ACTIVATED WHILE DRIVING LOW SPEEDS TO INCLUDE 10 MPH. WHEN THE CONTACT ATTEMPTED TO STOP THE VEHICLE, IT FAILED TO STOP. THE DEALER ADVISED THE CONTACT THAT A RELATED RECALL WAS STATE SPECIFIC. THE CHEVROLET MANUFACTURER ALSO INFORMED THE CONTAC…
Read full complaint
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO. THE CONTACT STATED THAT THE ABS WAS ACTIVATED WHILE DRIVING LOW SPEEDS TO INCLUDE 10 MPH. WHEN THE CONTACT ATTEMPTED TO STOP THE VEHICLE, IT FAILED TO STOP. THE DEALER ADVISED THE CONTACT THAT A RELATED RECALL WAS STATE SPECIFIC. THE CHEVROLET MANUFACTURER ALSO INFORMED THE CONTACT THAT HE WOULD HAVE TO REPAIR THE VEHICLE AT HIS OWN EXPENSE. THE FAILURE MILEAGE WAS 84,000.
ABS ACTIVATES AT LOW SPEED, 5-10MPH, ON DRY PAVEMENT. THIS EXTENDS THE STOPPING DISTANCE. HAPPENS MORE THAN 50% OF THE TIME WHEN STOPPING. SAME CONDITION AS DESCRIBED IN CAMPAIGN NUMBER 05V379000. *TR
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…
Read full complaint
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
I HAVE HAD TO REPLACE MY FUEL SENDING UNIT/PUMP TWICE. WHY DO THEY KEEP FAILING? *TR
TL*THE CONTACT OWNS A 2001 CHEVROLET PICKUP C1500. WHILE DRIVING APPROXIMATELY 2 MPH INTO A PARKING LOT THE ANTI-LOCK BRAKING SYSTEM FAILED TO OPERATE NORMALLY. THE CONTACT HAD DIFFICULTY STOPPING THE VEHICLE WHEN THE BRAKES WERE APPLIED. THE CONTACT WAS UNABLE TO OVERRIDE THE ABS BY APPLYING EXTREME FORCE TO THE BRAKE PEDAL WHI…
Read full complaint
TL*THE CONTACT OWNS A 2001 CHEVROLET PICKUP C1500. WHILE DRIVING APPROXIMATELY 2 MPH INTO A PARKING LOT THE ANTI-LOCK BRAKING SYSTEM FAILED TO OPERATE NORMALLY. THE CONTACT HAD DIFFICULTY STOPPING THE VEHICLE WHEN THE BRAKES WERE APPLIED. THE CONTACT WAS UNABLE TO OVERRIDE THE ABS BY APPLYING EXTREME FORCE TO THE BRAKE PEDAL WHICH CAUSED THE VEHICLE TO DRIVE ONTO A CURB. THE CONTACT WAS FORCED TO SHUT THE ENGINE OFF TO RESET THE ANTI-LOCK BRAKING SYSTEM. THE FAILURE OCCURRED ON TWO OCCASIONS PRIOR TO BEING DIAGNOSED BY THE DEALER. THE DEALER DETERMINED THAT THE WHEEL SPEED SENSOR WAS CORRODED AND CHARGED HIM $200 TO CLEAN IT; HOWEVER, THE FAILURE COULD RECUR IF THE WHEEL SENSORS BECOME CORRODED. THE VEHICLE IS CURRENTLY OPERATING NORMALLY. THE FIRST FAILURE OCCURRED ON OCTOBER 17TH AND 18TH OF 2009. THE FAILURE MILEAGE WAS 68,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 69,000.
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.