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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 →

When problems were reported

Mileage at the reported incident

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 reports
69,000 miles · Apr 10, 2007
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 5 MPH THE ABS ACTIVATED WHEN THE BRAKE PEDALWAS DEPRESSED AND THE VEHICLE FAILED TO STOP. THE ROAD CONDITIONS WERE CLEAR. THE DEALER HAD NOT INSPECTED THE VEHICLE. THERE WAS RECALL # 05V379000 CONCERNING THE ANTILOCK BRAKES. PRIOR TO THE FAILURE THE VEHICL…

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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 5 MPH THE ABS ACTIVATED WHEN THE BRAKE PEDALWAS DEPRESSED AND THE VEHICLE FAILED TO STOP. THE ROAD CONDITIONS WERE CLEAR. THE DEALER HAD NOT INSPECTED THE VEHICLE. THERE WAS RECALL # 05V379000 CONCERNING THE ANTILOCK BRAKES. PRIOR TO THE FAILURE THE VEHICLE WAS INSPECTED AND REPAIRED UNDER THE RECALL. THE CONTACT SPOKE WITH A GENERAL MOTORS REPRESENTATIVE, WHO STATED THAT THE DEALER WOULD BE UNABLE TO INSPECT OR REPAIR THE VEHICLE AGAIN. THE CURRENT AND FAILURE MILEAGE WERE 69,000.*AK UPDATED 04/30/07. *JB

NHTSA ODI #10187448

81,000 miles · Apr 1, 2007
Fuel System, Other

GAS GAUGE BOUNCES FROM FULL TO EMPTY AND READS INACCURATE AT TIMES EVEN AFTER FILLING TANK. WITH A FULL TANK GAUGE WILL BOTTOM OUT AT EMPTY AND INITIATE LOW FUEL LIGHT AND THEN RETURN BACK TO FULL. *JB

NHTSA ODI #10186656

90,000 miles · Mar 19, 2007
Fuel System, Other

THE FUEL GAGE DOES NOT READ ACCURATELY. WHEN THE FUEL TANK IS FULL, THE GAGE READS EMPTY. AFTER SOME FUEL IS USED IT SEEMS TO READ PROPERLY UNTIL AROUND HALF A TANK, AT WHICH POINT IT STARTS TO BOUNCE AROUD BETWEEN EMPTY AND THE PROPER READING. IT WILL ALSO READ EMPTY IF THE TRUCK IS PARK AND IDLING FOR A SHORT PERIOD OF TIME

NHTSA ODI #10185579

25 miles · Mar 15, 2007
Service Brakes, Hydraulic

TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. ON SEVERAL OCCASIONS WHILE DRIVING AT SLOW SPEEDS THE BRAKE PEDAL MADE COMPLETE CONTACT WITH THE FLOOR. THE CONTACT HAD TO ENGAGE THE BRAKES A COUPLE OF TIMES TO SLOW THE VEHICLE DOWN. ALSO, THERE WAS NOISE. THE FAILURE MILEAGE WAS 25 MPH. THERE WAS SNOW ON THE GROUND…

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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. ON SEVERAL OCCASIONS WHILE DRIVING AT SLOW SPEEDS THE BRAKE PEDAL MADE COMPLETE CONTACT WITH THE FLOOR. THE CONTACT HAD TO ENGAGE THE BRAKES A COUPLE OF TIMES TO SLOW THE VEHICLE DOWN. ALSO, THERE WAS NOISE. THE FAILURE MILEAGE WAS 25 MPH. THERE WAS SNOW ON THE GROUND AT THE TIME OF THE FAILURE. THE MECHANIC STATED THAT THE REAR ROTORS WERE WORN OUT, AND HAD TO BE REPLACED. THE CURRENT MILEAGE WAS 49,000. *AK UPDATE 4/25/07*TR

NHTSA ODI #10185194

52,000 miles · Mar 15, 2007
Parking BrakeService Brakes, Hydraulic

TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT HEARD A SCRAPPING NOISE IN THE VEHICLE. RECALL CAMPAIGN# 05V161000 WAS RELATED TO THE PARKING BRAKE FAILURE. THE FAILURE MILEAGE WAS 52,000. IN OCTOBER 2006 THE DEALER STATED THAT THE RECALL WAS NOT RELATED TO THIS VEHICLE DUE TO THE BRAKE PADS AND ROTORS…

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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT HEARD A SCRAPPING NOISE IN THE VEHICLE. RECALL CAMPAIGN# 05V161000 WAS RELATED TO THE PARKING BRAKE FAILURE. THE FAILURE MILEAGE WAS 52,000. IN OCTOBER 2006 THE DEALER STATED THAT THE RECALL WAS NOT RELATED TO THIS VEHICLE DUE TO THE BRAKE PADS AND ROTORS BEING WORN. *AK THE CURRENT MILEAGE WAS 61610. UPDATE *4/23/07 **TR

NHTSA ODI #10185183

15,000 miles · Mar 14, 2007
Service Brakes, Hydraulic

ANTI-LOCK BRAKES DO NOT WORK PROPERLY. IF I AM GOING SLOW AND NEED TO STOP FAST THE BRAKES ARE LIKE I AM ON ICE. I HAVE ROLLED INTO SEVERAL RED LIGHTS. IF I AM ON ROUGH ROAD THEY DO NOT WORK CORRECTLY. *JB

NHTSA ODI #10185032

104,000 miles · Mar 5, 2007
Service Brakes, Hydraulic

I HAD A RECALL THAT WAS SUPPOSED TO OF BEEN FIXED BUT NOW THEY ARE NOT WORKING CORRECTLY AND I ALMOST HAD A MAJOR ACCIDENT. I HAVE A 2001 CHEVY SILVERADO PICKUP AND THE ABS SENSORS LOCK UP THE BRAKES FOR NO REASON . THEY SAY THEY FIXED THE RECALL AWHILE BACK WHICH I DO NOT BELIEVE . THIS IS A VERY SERIOUS PROBLEM . I AM JUST WAI…

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I HAD A RECALL THAT WAS SUPPOSED TO OF BEEN FIXED BUT NOW THEY ARE NOT WORKING CORRECTLY AND I ALMOST HAD A MAJOR ACCIDENT. I HAVE A 2001 CHEVY SILVERADO PICKUP AND THE ABS SENSORS LOCK UP THE BRAKES FOR NO REASON . THEY SAY THEY FIXED THE RECALL AWHILE BACK WHICH I DO NOT BELIEVE . THIS IS A VERY SERIOUS PROBLEM . I AM JUST WAITING FOR THE LAWSUITS TO HIT GM . I ALMOST CRASHED THOUGH A FRONT GLASS WINDOW PANE STORE FRONT . IF I HAD HEART PROBLEMS I WOULD HAVE PROBABLY HAD A HEART ATTACK ! THIS IS A SERIOUS, SERIOUS PROBLEM . *JB

NHTSA ODI #10184237

65,000 miles · Feb 22, 2007
Fuel System, Gasoline

ERATTIC FUEL GAUGE OPERATION: FUEL GAUGE READS EMPTY AT RANDOM TIMES,AMOUNT OF FUEL IN TANK ISN'T A FACTOR. GAUGE DROPS QUICKLY FROM 3/4 TO LOW FUEL WARNING (WITHIN A FEW MILES). *NM

NHTSA ODI #10183222

110,000 miles · Feb 7, 2007
Fuel System, Other

FUEL GAUGE NOT WORKING PROPERLY ON MY 2001 CHEVROLET SILVERADO. IT SEEMS TO BE A COMMON PROBLEM ON THE 2000 AND 2001 TRUCKS. *JB

NHTSA ODI #10181838

120,000 miles · Dec 28, 2006
Steering

STEERING COUPLER IN STEERING COLUMN GOES BAD AND CAN BE FELT IN STEERING WHEEL GIVING THE DRIVER A VAGUE HANDLING SENSATION AND NOT A GOOD FEEL FOR THE ROAD SURFACE ESPECIALLY IN TURNS. GM HAS TWELVE TSBS ON THE PROBLEM AND WILL NOT REPAIR FOR NO CHARGE I HAD TO PAY FOR THE LAST ONE AND IN 30K THEY HAVE ALL FAIL. *JB

NHTSA ODI #10177210

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.