NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
181 reports150,000 miles · Aug 31, 2007
Service Brakes, Hydraulic
FAILURE OF THE WHEEL SPEED SENSOR DUE TO CORROSION CAUSING UNWANTED ANTI-LOCK BRAKE SYSTEM ACTIVATION. NHTSA RECALL # 05V379000 DESCRIBES THIS VERY CONDITION, BUT I WAS TOLD MY TRUCK DID NOT QUALIFY FOR THIS RECALL AFTER A DEALER SEARCH OF MY VIN NUMBER. MY TRUCK HOWEVER FALLS WITHIN THE YEAR, MODEL AND LOCATIONS DESCRIBED IN TH…
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FAILURE OF THE WHEEL SPEED SENSOR DUE TO CORROSION CAUSING UNWANTED ANTI-LOCK BRAKE SYSTEM ACTIVATION. NHTSA RECALL # 05V379000 DESCRIBES THIS VERY CONDITION, BUT I WAS TOLD MY TRUCK DID NOT QUALIFY FOR THIS RECALL AFTER A DEALER SEARCH OF MY VIN NUMBER. MY TRUCK HOWEVER FALLS WITHIN THE YEAR, MODEL AND LOCATIONS DESCRIBED IN THE RECALL. *JB
NHTSA ODI #10201604
75,000 miles · Aug 27, 2007
Air BagsService Brakes, HydraulicStructureCrash
TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500 HD. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE FRONT END OF THE VEHICLE WAS COMPLETELY DESTROYED. A POLICE REPORT WAS FILED. THE AIR BAGS FAILED TO DEPLOY. THE VEHICLE WAS TOWED AND IS CURRENTLY AT THE BODY SHOP. HE STATED THAT GM IS GIVING H…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500 HD. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE FRONT END OF THE VEHICLE WAS COMPLETELY DESTROYED. A POLICE REPORT WAS FILED. THE AIR BAGS FAILED TO DEPLOY. THE VEHICLE WAS TOWED AND IS CURRENTLY AT THE BODY SHOP. HE STATED THAT GM IS GIVING HIM THE RUN AROUND. THE CURRENT AND FAILURE MILEAGES WERE 75,000. THE CONSUMER STATED SPOKE WITH DEALER, THERE HAVE BEEN 4 RECALLS THAT WERE ISSUED AND HE WAS NOT NOTIFIED SUCH AS TAILGATE, AIRBAG, FRONT BRAKE PIPE WITH BODY CROSS SEALS, AND FRONT BRAKE HOSE ABRASION. UPDATED 09/10/07 *TR
NHTSA ODI #10200871
110,000 miles · Aug 16, 2007
Parking Brake
TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. ON AUGUST 15, 2007, THE CONTACT'S VEHICLE FAILED INSPECTION DUE TO THE PARKING BRAKE NOT ENGAGING. HE STATED THAT THE EMERGENCY BRAKE LIGHT WAS ILLUMINATED, WHICH INDICATED THAT IT WAS ENGAGED. THE VEHICLE HAS NOT BEEN REPAIRED OR DIAGNOSED BY THE DEALER. THE CURRENT AND FAILURE MI…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. ON AUGUST 15, 2007, THE CONTACT'S VEHICLE FAILED INSPECTION DUE TO THE PARKING BRAKE NOT ENGAGING. HE STATED THAT THE EMERGENCY BRAKE LIGHT WAS ILLUMINATED, WHICH INDICATED THAT IT WAS ENGAGED. THE VEHICLE HAS NOT BEEN REPAIRED OR DIAGNOSED BY THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 110,000.
NHTSA ODI #10199864
70,000 miles · Aug 3, 2007
Fuel System, Other
THE FUEL GAUGE IS SENDING INCORRECT READING AFTER FILL UP, THE LOW FUEL WARNING LAMP IS COMING ON AFTER FILL UP. DEALER TELLS ME THIS IS EXTREMELY COMMON FOR THIS TRUCK AND THAT I SHOULD CONSIDER IT ROUTINE MAINTENANCE DOESN'T SEEM RIGHT FOR ONLY 70000 MILES. *JB
NHTSA ODI #10198468
60,000 miles · Jan 24, 2007
Wheels
TL*- THE CONTACT STATED THAT HE PAID FOR THE RECALL REPAIR AND EXPECTED TO BE REIMBURSED. THE DEALER REIMBURSED HIM $148, BUT DID NOT REIMBURSE HIM FOR THE TOTAL AMOUNT OF THE REPAIRS, BECAUSE THE RECEIPT WAS NOT IN HIS NAME. THE SALESMAN WHO SOLD HIM THE VEHICLE PURCHASED THE PART. *AK
NHTSA ODI #10180601
Mileage unknown · Jan 11, 2007
Engine And Engine Cooling
MY CATALYTIC CONVERTERS FAILED ONCE UNDER WARRANTY AROUND 79000 MILES AND AGAIN AROUND 110000. I PAID FOR THE SECOND. I AM HAVING TROUBLE AGAIN AT 117000 MILES AND COME TO FIND OUT THE PROBLEM IS DUE TO A LEAKING INTAKE MANIFOLD GASKET. THIS IS ALLOWING COOLANT TO FIND ITS WAY INTO THE EXHAUST DESTROYING THE QUITE EXPENSIVE PART…
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MY CATALYTIC CONVERTERS FAILED ONCE UNDER WARRANTY AROUND 79000 MILES AND AGAIN AROUND 110000. I PAID FOR THE SECOND. I AM HAVING TROUBLE AGAIN AT 117000 MILES AND COME TO FIND OUT THE PROBLEM IS DUE TO A LEAKING INTAKE MANIFOLD GASKET. THIS IS ALLOWING COOLANT TO FIND ITS WAY INTO THE EXHAUST DESTROYING THE QUITE EXPENSIVE PARTS. *JB
NHTSA ODI #10178471
38,000 miles · Jan 11, 2007
Parking Brake
THE FRICTION LININGS ON MY TRUCKS EMERGENCY BRAKE WORE TO THE POINT THAT ONE OF THEM SEIZED UP. I REMOVED THE BRAKE ASSEMBLY. I WENT TO HAVE THEM REPLACED AND THE MECHANIC SAID THIS IS A NORMAL PROBLEM WITH THESE TRUCKS AND WITHIN 18000 MILES THE SAME WOULD HAPPEN AGAIN SINCE GM HAS NOT COME OUT WITH A FIX. *JB
NHTSA ODI #10178469
98,000 miles · Dec 10, 2006
Service Brakes, Hydraulic
WHEN I APPLY BRAKES ON DRY PAVEMENTS THE ANTI LOCK BRAKING PREVENTS ME FROM STOPPING. THE BRAKE PEDAL IS FORCED UP WHEN I APPLY PRESSURE CAUSING ME TO PUSH REAL HARD FOR THE VEHICLE TO STOP. THIS OCCURS VERY OFTEN WHEN THERE IS BUMPS IN THE ROAD THAT MY TIRES ARE ROLLING OVER AS I APPLY MY BRAKES CAUSING FOR INCREASED STOPPING …
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WHEN I APPLY BRAKES ON DRY PAVEMENTS THE ANTI LOCK BRAKING PREVENTS ME FROM STOPPING. THE BRAKE PEDAL IS FORCED UP WHEN I APPLY PRESSURE CAUSING ME TO PUSH REAL HARD FOR THE VEHICLE TO STOP. THIS OCCURS VERY OFTEN WHEN THERE IS BUMPS IN THE ROAD THAT MY TIRES ARE ROLLING OVER AS I APPLY MY BRAKES CAUSING FOR INCREASED STOPPING DISTANCE. *NM
NHTSA ODI #10175718
Mileage unknown · Nov 30, 2006
Fuel System, Gasoline
MY GAS GAUGE ON MY 2000 GMC SIERRA PICKUP IS ACTING ERRATIC. IT GOES BACK AND FORTH BETWEEN FULL AND EMPTY FOR NO APPARENT REASON. THIS STARTED ABOUT A YEAR AGO. THE DEALER SAID IT WAS PROBABLY THE SENDING UNIT IN THE TANK AND WOULD COST APPROX $800 THANK YOU...*AB *NM
NHTSA ODI #10174835
74,500 miles · Nov 28, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE TRAVELING VARIOUS SPEEDS ON DRY NORMAL ROAD CONDITIONS, THE ANTILOCK BRAKING SYSTEM ACTIVATED AND PUMPED CONTINUOUSLY WHEN THE BRAKES WERE APPLIED. SHORTLY AFTER, THE ABS WARNING LIGHT ILLUMINATED. THE FAILURE OCCURRED WHILE CRUISING. THERE WERE NO WARNINGS PRIOR TO THE INCIDENT. A NHTSA RECALL …
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DT*: THE CONTACT STATED WHILE TRAVELING VARIOUS SPEEDS ON DRY NORMAL ROAD CONDITIONS, THE ANTILOCK BRAKING SYSTEM ACTIVATED AND PUMPED CONTINUOUSLY WHEN THE BRAKES WERE APPLIED. SHORTLY AFTER, THE ABS WARNING LIGHT ILLUMINATED. THE FAILURE OCCURRED WHILE CRUISING. THERE WERE NO WARNINGS PRIOR TO THE INCIDENT. A NHTSA RECALL REGARDING THE SPEED SENSORS, WAS PERFORMED TWO WEEKS PRIOR TO THE INCIDENT. THE VEHICLE WAS TAKEN TO THE DEALER WHO DETERMINED THAT BOTH PROBLEMS WERE NOT RELATED, AND A DIAGNOSTIC TEST DISPLAYED THAT THE ELECTRONIC CONTROL MODULE WAS FAULTY AND WOULD NEED TO BE REPLACED. THERE WERE NO REPAIRS MADE. THE CONTACT REMOVED THE FUSE THAT SUPPLIED POWER TO THE ELECTRONIC CONTROL MODULE IN THE MEAN TIME, WHICH DEACTIVATED THE ABS SYSTEM. THE CONTACT PLANNED TO FILE A COMPLAINT WITH THE MANUFACTURER AFTER FILING A COMPLAINT WITH THE NHTSA. UPDATED 1/19/2007 -*NM
NHTSA ODI #10174566
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.
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