IllustrationEmergency brake keeps engaging Power steering problem, seat belt light stays on even when buckled. Headlights are dim
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
Steering complaints
10 reportsWHEN GOING THE SPEED LIMIT THE TRUCK SEEMS TO WANT TO CROSS OVER LANES JUST BY CROSSING A DIP. IT FEELS FLOATY ON THE ROAD ANOTHER WORDS IT DOESN'T WANT TO STAY IN ITS OWN LANE
EXTREME RUST ON UNDER CARRAGE OF VEHICLE. BRAKE LINES RUSTED OUT CAUSING BRAKE FAILURE FRAME RUSTED OUT AT REAR LEAF SPRINGS AND FRAME RAIL CROSS MEMBERS. REAR SHOCK HANGERS RUSTED OFF VEHICLE. FRAME RUSTED SO BAD THAT IT PROHIBITS TOUNG OF ANY TYPE OF TRAILER. TOYOTA HAD SAME PROBLEM AND THEY HAD TO DO A RECALL SO WHY HAS GM NO…
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EXTREME RUST ON UNDER CARRAGE OF VEHICLE. BRAKE LINES RUSTED OUT CAUSING BRAKE FAILURE FRAME RUSTED OUT AT REAR LEAF SPRINGS AND FRAME RAIL CROSS MEMBERS. REAR SHOCK HANGERS RUSTED OFF VEHICLE. FRAME RUSTED SO BAD THAT IT PROHIBITS TOUNG OF ANY TYPE OF TRAILER. TOYOTA HAD SAME PROBLEM AND THEY HAD TO DO A RECALL SO WHY HAS GM NOT HAD TO DO THE SAME THING. IT IS A VERY LARGE SAFETY ISSUE AFFECTING MANY VEHICLES ON THE HWY TODAY.
SILVERADO 1500 4WD STEERING GEAR BOX DEFECT IN THAT IT STARTS TO GRIND AND THREATENS FREEZE UP AND POWER STEERING LOSS USUALLY WHEN ATTEMPTING LEFT TURN. DEALER HAS ALREADY REPLACED 2 UNITS. THE ORIGINAL WAS REPLACED AT 81,000 MILES. THE SECOND AT 96,000 AND NOW IT'S BAD AGAIN AT 120,000 MILES. DEALER STATES THAT IT IS A DESIGN …
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SILVERADO 1500 4WD STEERING GEAR BOX DEFECT IN THAT IT STARTS TO GRIND AND THREATENS FREEZE UP AND POWER STEERING LOSS USUALLY WHEN ATTEMPTING LEFT TURN. DEALER HAS ALREADY REPLACED 2 UNITS. THE ORIGINAL WAS REPLACED AT 81,000 MILES. THE SECOND AT 96,000 AND NOW IT'S BAD AGAIN AT 120,000 MILES. DEALER STATES THAT IT IS A DESIGN DEFECT THAT WAS CORRECTED FOR THE 2008 MODELS. PICTURE MAKING A RIGHT HAND TURN WITH FULL POWER STEERING BUT IF YOU TURN LEFT IT WILL GRIND AND WINE AT FIRST, GRADUATING TO TRYING TO MAKE THE LEFT TURN AS IF THE ENGINE HAD DIED OUT. THAT'S HOW BAD IT GETS. IT WILL, AND I'M SURE, IT ALREADY HAS CAUSED ACCIDENT PROBLEMS. QUESTION IS, WHY DID THE ORIGINAL STEERING BOX LAST MORE THAN 80,000 MILES BUT THE REPLACEMENTS BARELY MAKE 15,000 MILES?? MIND YOU THESE ARE OEM REPLACEMENTS DONE BY THE DEALER. FURTHERMORE, THE REPLACEMENTS AR ONLY WARRANTIED FOR 1 YEAR OR 12,000 MILES. HOW CONVENIENT HUH? THIS ISSUE IS A SERIOUS SAFETY PROBLEM AND NEEDS TOTAL RECALL AS SOON AS POSSIBLE! PLEASE NOTE THAT THIS IS THE 3RD STEERING BOX TO GO BAD SO FAR AS OF THIS DATE 4/24/09. *TR
MY 2000 CHEVY HAS A KNOCKING NOISE COMING FROM THE STEERING WHEEL. *TR
CONSUMER EXPERIENCED INTENSE SHAKING FROM THE VEHICLE WHEN GOING OVER BUMPS. HE TOOK THE VEHICLE TO THE DEALER, AND THEY COULD NOT FIND ANY DEFECTS. CONSUMER WAS NOT SATISFIED TO HAVE THE VEHICLE AT HOME AND EXAMINED IT HIMSELF, FINDING A LOOSE BOLT CONNECTING THE TIE ROD. *AK TOOK VEHICLE TO CHEV DEALER FOR REPAIR TWICE.…
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CONSUMER EXPERIENCED INTENSE SHAKING FROM THE VEHICLE WHEN GOING OVER BUMPS. HE TOOK THE VEHICLE TO THE DEALER, AND THEY COULD NOT FIND ANY DEFECTS. CONSUMER WAS NOT SATISFIED TO HAVE THE VEHICLE AT HOME AND EXAMINED IT HIMSELF, FINDING A LOOSE BOLT CONNECTING THE TIE ROD. *AK TOOK VEHICLE TO CHEV DEALER FOR REPAIR TWICE. THEY REPLACED IDLER ARM AND INNER PASSENGER SIDE TIE ROD, RE-BALANCED TIRES, ROTATED SAME AND ALIGNED FRONT END TO NO AVAIL. THE CONSUMER FOUND THAT THE TEFLON NUT HOLDING THE PASSENGER SIDE OUTER TIE ROD LOOSENED. ONLY A FEW THREADS WERE HOLDING THE NUT ONTO THE TIE ROD. *BF *NM
GM VEHICLES, CORROSION MAY CAUSE ANTI-LOCK BRAKE SYSTEM (ABS) ACTIVATION. *BF THE CONSUMER STATED HE RECEIVED A RECALL NOTICE IN THE MAIL. THE RECALL STATED IF THE REPAIRS HAD ALREADY BEEN MADE, SEND IN THE RECEIPT. THE CONSUMER WAS TOLD HE DID NOT QUALIFY FOR REIMBURSEMENT BECAUSE IT WAS A CANADIAN RECALL. THE RIGHT INNER T…
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GM VEHICLES, CORROSION MAY CAUSE ANTI-LOCK BRAKE SYSTEM (ABS) ACTIVATION. *BF THE CONSUMER STATED HE RECEIVED A RECALL NOTICE IN THE MAIL. THE RECALL STATED IF THE REPAIRS HAD ALREADY BEEN MADE, SEND IN THE RECEIPT. THE CONSUMER WAS TOLD HE DID NOT QUALIFY FOR REIMBURSEMENT BECAUSE IT WAS A CANADIAN RECALL. THE RIGHT INNER TIE ROD WAS LOOSE. *JB
IN EARLY JANUARY I NOTICED ON TV THERE WAS A RECALL ON THE 2000 CHEVROLET SILVERADO. FOR THE DRIVESHAFT ON THE POWER STEERING UNIT. I OWN A 2000 CHEVY SILVERADO, HOW LONG DOES THE MANUFACTURER HAVE TO NOTIFY THE OWNERS ON THE RECALL? OR ARE THEY REQUIRED TO DO SO. I BELIEVE THERE WAS ANOTHER RECALL SOME TIME BACK ON SAME MOD…
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IN EARLY JANUARY I NOTICED ON TV THERE WAS A RECALL ON THE 2000 CHEVROLET SILVERADO. FOR THE DRIVESHAFT ON THE POWER STEERING UNIT. I OWN A 2000 CHEVY SILVERADO, HOW LONG DOES THE MANUFACTURER HAVE TO NOTIFY THE OWNERS ON THE RECALL? OR ARE THEY REQUIRED TO DO SO. I BELIEVE THERE WAS ANOTHER RECALL SOME TIME BACK ON SAME MODEL FOR THE CABLE STRAPS( TAILGATE SUPPORT) BUT NEVER HEARD A THING FROM THE DEALER. I MADE A PHONE CALL ON FEB 4 TO THE LOCAL DEALER REGARDING THE POWER STEERING AND HE HAD NOT HEARD OF ANY SUCH RECALL. THIS I KIND OF A SORE SUBJECT FOR ME BECAUSE WITH ONLY 45,000 MILES ON MY PICKUP I HAD TO HAVE THE SEALS REPLACED ON THE POWER STEERING UNIT DUE TO LEAKAGE, IN MY JUDGMENT THEY WORE OUT PREMATURELY. THAT COST ME $236.00, IS THERE A CONNECTION BETWEEN THE DRIVESHAFT ON THE UNIT AND THE SEALS WEARING PREMATURELY? I BELIEVE I SHOULD BE REIMBURSED FOR THE $236.00 IF IN FACT THERE IS A RECALL.*JB
THE VEHICLE MADE A RATTLING SOUND WHILE DRIVING AND THE WHEELS FELT UNSTABLE. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE RATTLING WAS COMING FROM THE INTERMEDIATE SHAFT. *NLM
POWER STEERING SHAFT SNAPPED, CAUSING LOSS OF POWER STEERING. TOOK VEHICLE TO DEALER, AND DEALER PUT ANOTHER PUMP IN. WHILE ON VACATION AROUND MAY 5TH, SHAFT BROKE AGAIN, AND ON JUNE 2ND, POWER STEERING WENT OUT. CURRENTLY, VEHICLE IS AT DEALER'S REPAIR SHOP. *AK THE VEHICLE MAKES NOISE WHEN TURNING LEFT. *YH
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.