IllustrationTHE THROTTLE CABLE MAKES CONTACT AND RUB THROUGH THE FLEXIBLE PRESSURIZED FUEL LINE CREATING A PINHOLE LEAK OF NATURAL GAS. I SMELL GAS INSiDE CAB. CAUSES CHECK ENGINE LIGHT TO COME ON
2002 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2002 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
340–25K
4925–50K
7950–75K
10275–100K
124100–150K
55150K+
443 reports with mileage · 66 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. Review the 184 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 164 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 30 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
45 crash reports5 fire reports15 injury reports
Fuel/propulsion System complaints
11 reportsTAKATA RECALL - HAVE BEEN STRANDED NUMEROUS TIMES AS IT HAS APPEARED TO BE THE FUEL PUMP NOT GETTING GAS TO START THE CAR. SOMETIME CAN HEAR PUMP RUNNING AS I HAVE REPLACE 3-4 PUMPS SINCE 2012 OR 13. SOME TIME BEATING UNDER TANK HELPS. THERE SEEM TO BE NUMEROUS COMPLAINTS ABOUT THIS PROBLEM. SECURITY LIGHT FLASHING AND START SOM…
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TAKATA RECALL - HAVE BEEN STRANDED NUMEROUS TIMES AS IT HAS APPEARED TO BE THE FUEL PUMP NOT GETTING GAS TO START THE CAR. SOMETIME CAN HEAR PUMP RUNNING AS I HAVE REPLACE 3-4 PUMPS SINCE 2012 OR 13. SOME TIME BEATING UNDER TANK HELPS. THERE SEEM TO BE NUMEROUS COMPLAINTS ABOUT THIS PROBLEM. SECURITY LIGHT FLASHING AND START SOMETIME WHEN IT IS RESET. SOUNDS WONDERFUL WHEN IT RUNS. CAN IT BE THE COMPUTER? TOWED TO A SAFE LOCATION AFTER NOT STARTING AND DIAGNOSTIC TECHNICIAN SHOW 10% FUEL PRESSURE. I PARKED WENT IN TO MAKE A PAYMENT AT A BUSINESS AND WOULD NOT START FOR 4 DAYS
FUEL AND BREAK LINES COMPLETELY RUSTED OUT. FUEL LINE BROKE WHILE REPLACING FUEL FILTER. NECESSITATED REPLACEMENT OF ENTIRE FUEL LINE SYSTEM. BREAK LINE BROKE WHILE DRIVING AROUND SAME TIME LOSING ALL BREAKING FUNCTIONS. NEEDED TO TURN OFF ROAD AND KILL MOTOR TO STOP. ALL BREAK LINES NEED REPLACEMENT. I SPENT $2500 FIXING.
BRAKE LINES AND FUEL LINES ARE VERY RUSTED ALSO THE DRIVE SHAFT AND ABS BRACKET 2 BRAKE LINES HAVE RUSTED THROUGH WHILE DRIVING THE TRUCK HAS ONLY ABOUT 100,000 MILES IT IS VERY DANGEROUS
THE FUEL LINES RUST AWAY AND START LEAKING FUEL BADLY. ALL LINES HAVE TO BE REPLACED. THE RUST ON THIS TRUCK IS UNBELIEVABLE. GM WILL NOT STAND BEHIND THE PRODUCT. THE ROCKER PANELS ALL RUSTED OUT AS WELL. THE FRAME IS RUSTING OUT. THESE TRUCK ARE JUST RUST BUCKETS
EXCESSIVE CORROSION ON BRAKE AND FUEL LINES. HAD A METAL LINE BLOW OUT NEAR REAR DRIVER SIDE WHEEL CAUSING DRIVER TO HAVE TO USE TRANSMISSION AND HOLDING PARKING BRAKE RELEASE HANDLE WHILE USING E-BRAKE WHILE STEERING WITH ONE HAND. UPON SPLICING IN A SECTION OF REPLACEMENT TUBING, I NOTICED THE FUEL RETURN LINE FROM THE ENGINE …
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EXCESSIVE CORROSION ON BRAKE AND FUEL LINES. HAD A METAL LINE BLOW OUT NEAR REAR DRIVER SIDE WHEEL CAUSING DRIVER TO HAVE TO USE TRANSMISSION AND HOLDING PARKING BRAKE RELEASE HANDLE WHILE USING E-BRAKE WHILE STEERING WITH ONE HAND. UPON SPLICING IN A SECTION OF REPLACEMENT TUBING, I NOTICED THE FUEL RETURN LINE FROM THE ENGINE TO THE TANK IS CORRODED SEVERELY TOO. I HAD A SECTION OF FUEL LINE FALL APART UPON REPLACING A FUEL FILTER AND SPLICED IN A RUBBER FUEL HOSE WITH CLAMPS TO GET A FUEL FILTER REPLACED. WHEN THE FUEL LINES RUPTURE, THERE IS A CHANCE OF FIRE FROM THE EXHAUST OR HOT BRAKE DRUMS. WAS ADVISED BY MECHANIC THAT I NEED TO SELL TRUCK AS IT HAS 18-24 MONTHS LEFT WITHOUT PROPER AND EXPENSIVE REPAIRS BEING MADE. RARELY GETS UNDERBODY WASH AS A QUALITY WASH IS FAR AWAY AND WAS ADVISED THAT THE RUST IS PROBABLY HOLDING IT TOGETHER AND ADVISED NOT TO KNOCK OFF ANY MORE RUST AS IT WOULD ACCELERATE FURTHER CORROSION. WAS ADVISED A WASTE OF TIME TO USE RUST REFORMER OR UNDERCOATING. I NOTICED THIS STATIONARY AS THE VEVICLE WAS MAKING SQUEAKING SOUNDS FROM THE REAR AXLE HUB ON DRIVER SIDE (SAME LINE THAT BLEW) AND FIGURED HANGING CALIPER SO I DID A FULL BRAKE PEDAL PRESS AND FELT THE PEDAL GET SPONGY AND DROP ANOTHER 1" TOWARD FLOOR. I OPENED DOOR, HUNG OUT LOOKING UNDER TRUCK AND PRESSED PEDAL AGAIN TO SEE FLUID POURING FROM REAR AXLE AREA. DROVE IT 30 MILES WITH NO SERVICE BRAKES TO GET TO THE GARAGE USING ONLY E-BRAKE AND 3,2,1 AND NEUTRAL RANGE OF TRANSMISSION TO BE ABLE TO STOP IF NEEDED. ALSO WAS ADVISED ABOUT FUEL TANK STRAP AND THAT I WOULD NEED A FLAME CUTTER TO CHANGE THE FUEL PUMP AS TRUCK BED BOLTS LOOKED HORRIBLE OR WOULD NEED TO CUT TANK STRAPS DEPENDING ON HOW MUCH FUEL IS IN THE TANK. THE "ANNUAL UNDERBODY WASH" MOST OWNERS MANUALS RECOMMEND IS INSUFFICIENT TO PREVENT THIS PROBLEM.
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT FUEL WAS LEAKING UNDER THE VEHICLE. IN ADDITION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED AS SOON AS THE VEHICLE WAS OPERATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE FUEL PUMP WAS LEAKING AND NEEDED TO BE REPLACED. THE …
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT FUEL WAS LEAKING UNDER THE VEHICLE. IN ADDITION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED AS SOON AS THE VEHICLE WAS OPERATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE FUEL PUMP WAS LEAKING AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 116,000. MA 10/19/2015
LUCKILY I WAS PULLING IN MY DRIVEWAY WHEN I FOUND OUT MY BRAKES HAD GONE BECAUSE THEY HAD RUSTED THROUGH NOT LONG AFTER MY GAS WAS POURING OUT CAUSE THE FUEL LINES RUSTED AND NOW CHANCES ARE I WONT GET AN INSPECTION STICKER THIS COMING YEAR BECAUSE MY FRAME IS RUSTED OUT
I'VE HAD TO REPLACE CALIPERS, ROTORS, BRAKE LINES THE HAVE RUSTED, BRAKES HOSES THAT HAVE GONE BAD AND THIS VEHICLE IS WELL KEPT AND INSIDE. LOW MILES FOR A 2002 AND YET ALL AT ONCE EVERYTHING WENT BAD INCLUDING MY FUEL SENSOR FOR THE GAS GUAGE.
BEGAN TO SMELL GAS AND COULD VISUAL SEE FUEL LEAKING FROM IN THE AREA OF THE FUEL TANK. MECHANIC CONFIRMED FUEL WERE LEAKING DUE TO CORROSION. *TR
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.