Illustration2000 CHEVY Z71 BRAKE LINES RUSTED HOLES IN LINE DDDKY. *TR
2000 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2000 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
210–25K
3725–50K
8050–75K
10275–100K
152100–150K
97150K+
489 reports with mileage · 125 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 237 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 162 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
69 crash reports5 fire reports25 injury reports
Service Brakes, Hydraulic complaints
237 reportsI LEFT WORK AND WHEN I PULLED UP TO THE TRAFFIC LIGHT MY BRAKES WENT ALL THE WAY TO THE FLOOR. HAD THE CAR TOWED TO THE DEALER AND HAD TO HAVE ALL THE BRAKE LINES REPLACED. DEALER SAID THEY WERE COMPLETELY RUSTED OUT. *TR
2000 CHEVY SILVERADO K1500 . APPROXIMATELY 12-5-2009 BRAKE LINE BURST WHILE I WAS EXITING MY STEEP DRIVEWAY. I LOST MY BRAKES AND NEARLY COLLIDED WITH ANOTHER VEHICLE. OVER $600 IN REPAIRS. I AM REPORTING THIS LATE BECAUSE I DID NOT REALIZE THIS HAS HAPPENED TO SEVERAL OTHER SILVERADO OWNERS. BRAKE LINES AS WELL AS ENTIRE UNDERC…
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2000 CHEVY SILVERADO K1500 . APPROXIMATELY 12-5-2009 BRAKE LINE BURST WHILE I WAS EXITING MY STEEP DRIVEWAY. I LOST MY BRAKES AND NEARLY COLLIDED WITH ANOTHER VEHICLE. OVER $600 IN REPAIRS. I AM REPORTING THIS LATE BECAUSE I DID NOT REALIZE THIS HAS HAPPENED TO SEVERAL OTHER SILVERADO OWNERS. BRAKE LINES AS WELL AS ENTIRE UNDERCARRIAGE ARE EXTREMELY RUSTED. I AM NOW IN PROCESS OF HAVING FRAME WELDED AND NEW ROCKER PANELS ATTACHED. I HAVE NOT SEEN RUST ON A VEHICLE SUCH AS THIS SINCE THE 1970'S. *TR
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500 4X4. THE CONTACT STATED THAT WHILE WAITING TO EXIT A RESIDENTIAL DRIVEWAY, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOOR BOARD. AFTER INSPECTING THE VEHICLE AND NOTICING AN ABNORMAL LEAK, HE FOUND THAT THE BRAKE LINE WAS CORRODED AND HAD FAILED. THE VEHICLE HAS NOT BEEN INSPECTED…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500 4X4. THE CONTACT STATED THAT WHILE WAITING TO EXIT A RESIDENTIAL DRIVEWAY, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOOR BOARD. AFTER INSPECTING THE VEHICLE AND NOTICING AN ABNORMAL LEAK, HE FOUND THAT THE BRAKE LINE WAS CORRODED AND HAD FAILED. THE VEHICLE HAS NOT BEEN INSPECTED BY A DEALER NOR REPAIRED. THE MANUFACTURER WAS CONTACTED AND REFERRED HIM TO A SERVICE MANAGER. THE FAILURE MILEAGE WAS APPROXIMATELY 31,800.
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ABS SYSTEM ENGAGED ON DRIVE SURFACES ON LOW SPEED STOPS; THE FAILURE MADE THE VEHICLE DIFFICULT TO STOP. THE CONTACT REFERENCED RECALL 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK) BUT WAS INFORMED BY THE MANUFACTURER THAT THE VEHICLE WAS NOT INCL…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ABS SYSTEM ENGAGED ON DRIVE SURFACES ON LOW SPEED STOPS; THE FAILURE MADE THE VEHICLE DIFFICULT TO STOP. THE CONTACT REFERENCED RECALL 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK) BUT WAS INFORMED BY THE MANUFACTURER THAT THE VEHICLE WAS NOT INCLUDED. THE FAILURE MILEAGE WAS 85,000.
I WAS BACKING MY TRUCK UP TO PARK IT IN MY YARD, AND THE BRAKE PEDAL WENT TO THE FLOOR. WHEN TOOK A LOOK AT TO WHAT CAUSED THIS TO HAPPEN, I FOUND A HOLE IN MY LEFT REAR BRAKE LINE UNDER A WIRE HARNESS THAT WAS ROUTED OVER THE BRAKE LINE. THE LINE WAS BADLY RUSTED. THE ROUTING WAS INCORRECT TO KEEP FROM WEARING A HOLE IN THE LIN…
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I WAS BACKING MY TRUCK UP TO PARK IT IN MY YARD, AND THE BRAKE PEDAL WENT TO THE FLOOR. WHEN TOOK A LOOK AT TO WHAT CAUSED THIS TO HAPPEN, I FOUND A HOLE IN MY LEFT REAR BRAKE LINE UNDER A WIRE HARNESS THAT WAS ROUTED OVER THE BRAKE LINE. THE LINE WAS BADLY RUSTED. THE ROUTING WAS INCORRECT TO KEEP FROM WEARING A HOLE IN THE LINE. I THINK THIS WAS DONE AT THE FACTORY CAUSES I HAVE NEVER MESSED WITH THE WIRE HARNESS, IT HAS ALWAYS BEEN THERE. *TR
I TRIED TO STOP, BECAUSE OF A SUDDEN STOPPED CAR IN FRONT. I EXPERIENCED A TOTAL BRAKE FAILURE, LEFT THE ROAD, DROVE INTO A FIELD. NO DAMAGE DONE. INVESTIGATION REVEALED ALL MY BRAKES LINES RUSTED THROUGH, CORRODED BEYOND REPAIR. WORST CORROSION I EVER SAW ON ANY BRAKE LINES. SUDDEN FAILURE COULD HAVE CAUSED DEADLY CRASH.
BRAKE LINE UNDER DRIVERS SEAT FAILED DUE TO RUST. DRIVING AT ABOUT 25 MPH SLOWED DOWN BEHIND ANOTHER CAR WHEN BRAKE PEDAL WENT TO THE FLOOR. THE FRONT BRAKES HAD FAILED, STOPPED WITH REAR BRAKES ONLY. MISSED CAR IN FRONT BY INCHES. TRUCK WAS BROUGHT TO LOCAL SERVICE STATION AND I WAS TOLD ALL BRAKE LINES GOING TO THE ABS UNIT WE…
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BRAKE LINE UNDER DRIVERS SEAT FAILED DUE TO RUST. DRIVING AT ABOUT 25 MPH SLOWED DOWN BEHIND ANOTHER CAR WHEN BRAKE PEDAL WENT TO THE FLOOR. THE FRONT BRAKES HAD FAILED, STOPPED WITH REAR BRAKES ONLY. MISSED CAR IN FRONT BY INCHES. TRUCK WAS BROUGHT TO LOCAL SERVICE STATION AND I WAS TOLD ALL BRAKE LINES GOING TO THE ABS UNIT WERE BADLY RUSTED AND NEEDED TO BE REPLACED. *TR
THE LATEST POSSIBLE RECALL OF RUSTED BRAKE LINES ON 2000 CHEVY SILVERADO PICK UPS YOU STATE ONLY IN SALTED STATES BUT YOU DO NOT INCLUDE UTAH WHICH USES LARGE AMOUNTS OF SALT ON THEIR ROADS AS DO OTHER WESTERN STATES. WHY DO YOU LIMIT YOUR RECALL TO EASTERN STATES? *TR
MY WIFE COMPLAINED THE BRAKES FELT LIKE THEY HAD AIR IN THE LINES AND STOPPING WAS DIFFICULT. WHEN I WENT TO BLEED THEM I FOUND THAT THE FRONT STEEL LINE WAS COMPLETELY ROTTED AND HAD A PINHOLE SIZED FAILURE. I HAD A MECHANIC REPLACE THE LINES AND HE WAS SURPRISED AT THE LEVEL OF CORROSION ALL OVER THE UNDERSIDE OF THIS VEHICLE.…
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MY WIFE COMPLAINED THE BRAKES FELT LIKE THEY HAD AIR IN THE LINES AND STOPPING WAS DIFFICULT. WHEN I WENT TO BLEED THEM I FOUND THAT THE FRONT STEEL LINE WAS COMPLETELY ROTTED AND HAD A PINHOLE SIZED FAILURE. I HAD A MECHANIC REPLACE THE LINES AND HE WAS SURPRISED AT THE LEVEL OF CORROSION ALL OVER THE UNDERSIDE OF THIS VEHICLE. THE OUTER BODY IS IN PERFECT CONDITION GIVING A FALSE IMPRESSION OF BEING IN GOOD SHAPE.
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.