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1999 Chevrolet Silverado 1500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 1999 Chevrolet Silverado 1500 do not stand out strongly from the model-year median of 525.

About this comparison →

When problems were reported

Mileage at the reported incident

418 reports with mileage · 169 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 222 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 126 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

43 crash reports5 fire reports18 injury reports

Seat Belts complaints

11 reports
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Mileage unknown · Jan 21, 2011
Seat Belts

TL*THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT BOTH FRONT SEAT BELT RETRACTORS NO LONGER FUNCTIONED PROPERLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS TOLD THE SEAT BELT RETRACTORS FAILED DUE TO THE AGE OF THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT…

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TL*THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT BOTH FRONT SEAT BELT RETRACTORS NO LONGER FUNCTIONED PROPERLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS TOLD THE SEAT BELT RETRACTORS FAILED DUE TO THE AGE OF THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE UNAVAILABLE. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10378110

Mileage unknown · Aug 21, 2009
Seat Belts

MY DRIVER SIDE SEAT BELT BROKE FOR MY 1999 CHEVY SILVERADO 1500 PU. SEAT BELTS SHOULD NOT BRAKE. TRYING TO GET DEALER TO FIX AT NO COST. *TR

NHTSA ODI #10281292

60,000 miles · Oct 23, 2006
Seat BeltsService Brakes, Hydraulic

DT*: THE CONTACT STATED BOTH ABS BRAKE WARNING LIGHTS ILLUMINATED WHEN THE VEHICLE WAS STARTED. WHEN THE VEHICLE WAS TURNED OFF, THERE WAS A CLICKING SOUND, SO A WIRE WAS DISCONNECTED FROM THE ABS SYSTEM. WHEN RESTARTED, THE WARNING LIGHTS REMAINED ILLUMINATED. THE SERVICE DEALER AND MANUFACTURER WERE NOTIFIED. THE CONSUMER …

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DT*: THE CONTACT STATED BOTH ABS BRAKE WARNING LIGHTS ILLUMINATED WHEN THE VEHICLE WAS STARTED. WHEN THE VEHICLE WAS TURNED OFF, THERE WAS A CLICKING SOUND, SO A WIRE WAS DISCONNECTED FROM THE ABS SYSTEM. WHEN RESTARTED, THE WARNING LIGHTS REMAINED ILLUMINATED. THE SERVICE DEALER AND MANUFACTURER WERE NOTIFIED. THE CONSUMER STATED THE SEAT BELTS TIGHTEN UP AT TIMES AND WON'T RELEASE, UNLESS THEY ARE UNBUCKLED. UPDATED 12/01/06. *JB

NHTSA ODI #10171569

108,800 miles · Aug 29, 2006
Engine And Engine CoolingExterior LightingPower TrainInjury

DT*: THE CONTACT STATED WHILE STOPPED AT AN INTERSECTION, THE STEERING LOCKED UP, AND THE STEERING WHEEL COULD NOT BE TURNED TO THE LEFT. THIS WAS ACCOMPANIED BY THE THE SOUND OF HYDRAULIC RESISTANCE. THE VEHICLE WAS NOT TAKEN IN FOR SERVICE. SECOND, A PIECE OF PLASTIC FELL OFF THE INTERIOR OF THE VEHICLE. CAUSING THE DRIVE…

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DT*: THE CONTACT STATED WHILE STOPPED AT AN INTERSECTION, THE STEERING LOCKED UP, AND THE STEERING WHEEL COULD NOT BE TURNED TO THE LEFT. THIS WAS ACCOMPANIED BY THE THE SOUND OF HYDRAULIC RESISTANCE. THE VEHICLE WAS NOT TAKEN IN FOR SERVICE. SECOND, A PIECE OF PLASTIC FELL OFF THE INTERIOR OF THE VEHICLE. CAUSING THE DRIVER SEAT TO SLIDE FREELY ON THE ADJUSTER TRACK WHEN THE CONTACT SAT IN THE SEAT. THE VEHICLE WAS TAKEN TO A SERVICE DEALER WHO WAS UNABLE TO DETERMINE THE PROBLEM. THIRD, THE CONTACT REPLACED THE DAYTIME RUNNING LIGHTS TWICE. THE LIGHTS ONLY WORKED FOR 3 TO 6 MONTHS AT A TIME BEFORE HAVING TO BE REPLACED. THE LIGHTS WERE NOT ADDRESSED BY A DEALER OR A PRIVATE REPAIR SHOP. FOURTH, THE HEADLAMP SWITCH CONSTANTLY BECAME EXCESSIVELY HOT DURING OPERATION OF THE HEADLAMPS. THE VEHICLE WAS NOT TAKEN IN FOR INSPECTION OF THE SWITCH. FIFTH, WHEN THE 4-WHEEL DRIVE MODE WAS ENGAGED, THE WHEELS DID NOT TURN INDEPENDENTLY, CAUSING INCREASED EFFORT IN TURNING THE VEHICLE. THIS PROBLEM WAS NOT INSPECTED. SIXTH, THE STARTER FAILED WHILE ATTEMPTING TO START THE VEHICLE. UPON INSPECTION OF THE STARTER, IT WAS NOTICED THAT THE HOUSING WAS CRACKED. A PRIVATE MECHANIC WAS CONSULTED, WHO NOTIFIED THE CONTACT THAT THIS WAS A COMMON PROBLEM. FINALLY, THE PASSENGER SEAT BELT DID NOT FEED ENOUGH TO ALLOW FOR PASSENGER COMFORT WHICH CAUSED THE PASSENGER TO BE ABRAISED BY THE BELT. THE INERTIAL CONTROL SEEMED TO BE INTERMITTENT. THE SEAT BELTS WERE NOT INSPECTED BY EITHER A PRIVATE REPAIR SHOP OR A SERVICE DEALER.

NHTSA ODI #10166856

Mileage unknown · Dec 10, 2002
Seat Belts

BOTH FRONT SEAT AND SHOULDER BELTS WILL LOCK NOT ALLOWING THE PERSON TO MOVE FORWARD. THIS HAPPENS WITHOUT THE OWNER DEPRESSING THE BRAKES. THE TRUCK WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHICH STATED THAT THEY FIXED THE PROBLEM, BUT NO CHANGE IN CONDITION. PLEASE DESCRIBE DETAILS. TS

NHTSA ODI #8024138

Mileage unknown · Oct 8, 2002
Seat Belts

WHILE ON A TRIP TO TAMPA THE SEAT BELT WOULD NOT COME OUT AND AFTER MUCH HAGGLING WITH IT TO GET IT OUT, THE SEAT BELT WOULDN'T RETRACT. MR

NHTSA ODI #768254

Mileage unknown · Aug 8, 2001
Seat Belts

CONSUMER STATES THAT AFTER HAVING BOTH THE DRIVER AND PASSENGER SIDE SEATBELTS REPLACED DUE TO A RECALL, THEY NOW PIN PASSENGER TO SIT. THE NEW SEATBELTS DOES NOT ALLOW EITHER THE DRIVER OR PASSENGER TO MOVE.

NHTSA ODI #893890

Mileage unknown · Apr 17, 2001
Seat Belts

PASSENGER'S SEAT BELT WILL LOCK UP, AND WILL NOT EXTEND FOR PROPER OPERATION. CONSUMER HAD DEALERSHIP REPAIR THIS DEFECT WHEN HE WENT IN FOR A RECALL NOTICE HE RECEIVED ON BRAKES. CONSUMER STATED THAT BELT THAT REPLACED THE PREVIOUS BELT STILL DID NOT OPERATE PROPERLY, AND WILL STICK IN ONE POSITION. ALSO, CONCERNED THAT …

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PASSENGER'S SEAT BELT WILL LOCK UP, AND WILL NOT EXTEND FOR PROPER OPERATION. CONSUMER HAD DEALERSHIP REPAIR THIS DEFECT WHEN HE WENT IN FOR A RECALL NOTICE HE RECEIVED ON BRAKES. CONSUMER STATED THAT BELT THAT REPLACED THE PREVIOUS BELT STILL DID NOT OPERATE PROPERLY, AND WILL STICK IN ONE POSITION. ALSO, CONCERNED THAT SERIAL NUMBERS ON TWO PASSENGER NUMBERS DO NOT MATCH. PLEASE PROVIDE ANY ADDITIONAL INFORMATION/ATTACHMENTS.*AK

NHTSA ODI #886138

Mileage unknown · Mar 23, 2001
Seat Belts

WHILE LOCKING DRIVER'S SIDE SEAT SEAT BELT WILL NOT ALLOW CONSUMER TO TURN SIDE TO SIDE. SEAT BELT LOCKED CONSUMER IN PLACE, NO MOVEMENT. *AK

NHTSA ODI #883952

Mileage unknown · Oct 23, 2000
Power TrainSeat BeltsSuspension

THE SEAT BELTS ARE PREMATURELY LOCKING. *MJS

NHTSA ODI #556504

Official recalls

0

No 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

2

EA04011 · 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.