NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
158 reports79,000 miles · Sep 22, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE BACKING THE VEHICLE OUT OF A PARKING SPACE, A HUMMING NOISE WAS HEARD. WHILE DRIVING THE VEHICLE 50 MPH, THE NOISE CONTINUED. THE CONTACT DETERMINED THE HUMMING NOISE WAS THE BRAKE MODULE PUMP RUNNING AND DISCONNECTED THE PUMP UNTIL THE VEHICLE COULD BE TAKEN TO THE DEALERSHIP. AFTER THE ENGINE W…
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DT*: THE CONTACT STATED WHILE BACKING THE VEHICLE OUT OF A PARKING SPACE, A HUMMING NOISE WAS HEARD. WHILE DRIVING THE VEHICLE 50 MPH, THE NOISE CONTINUED. THE CONTACT DETERMINED THE HUMMING NOISE WAS THE BRAKE MODULE PUMP RUNNING AND DISCONNECTED THE PUMP UNTIL THE VEHICLE COULD BE TAKEN TO THE DEALERSHIP. AFTER THE ENGINE WAS TURNED OFF, THE HUMMING NOISE CONTINUED. THE DEALERSHIP CONFIRMED THE HUMMING NOISE WAS COMING FROM THE BRAKE CONTROL MODULE AND THERE WAS EITHER A FAULTY ELECTRONIC COMPUTER RELAY IN THE BRAKE MODULE OR IN THE VALVE BODY OF THE BRAKE MODULE. UPDATED 10/18/2006 - THE CONSUMER IS CONCERNED THAT THE BRAKES MAY FAIL. *NM
NHTSA ODI #10168941
Mileage unknown · Sep 7, 2006
Service Brakes, Hydraulic
MY ABS SYSTEM HAS FAILED THE MOTOR RUNS CONSISTENTLY BY THE PUMP UNDER THE DRIVERS SIDE DOOR, I PULLED THE WIRE CONNECTION HARNESS TO SILENCE IT AND NOW I HAVE A CONSTANT YELLOW ABS AND RED BRAKE LIGHT ON THE DASH PANEL. THE DEALERSHIP DID THE FRONT SENSOR RECALL BUT STILL HAVE THE EXISTING PROBLEM. THIS HAPPENED 3 YEARS AFTER…
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MY ABS SYSTEM HAS FAILED THE MOTOR RUNS CONSISTENTLY BY THE PUMP UNDER THE DRIVERS SIDE DOOR, I PULLED THE WIRE CONNECTION HARNESS TO SILENCE IT AND NOW I HAVE A CONSTANT YELLOW ABS AND RED BRAKE LIGHT ON THE DASH PANEL. THE DEALERSHIP DID THE FRONT SENSOR RECALL BUT STILL HAVE THE EXISTING PROBLEM. THIS HAPPENED 3 YEARS AFTER I BOUGHT IT BUT MY WARRANTY WAS UP AFTER 1 1/2 YEARS BECAUSE OF MY DISTANCE FROM MY EMPLOYER ATE UP THE WARRANTY. *JB
NHTSA ODI #10167543
117,298 miles · Aug 16, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE APPROACHING A STOP SIGN AT 15 MPH, THE VEHICLE'S BRAKES FAILED. THE DEALERSHIP WOULD NOT ACCEPT THE VEHICLE BECAUSE THE SERVICE DEPARTMENT COULD NOT OFFER AN IMMEDIATE APPOINTMENT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT REPAIR SHOP WHO DETERMINED THE PLASTIC PROTECTION OF THE BRAKE FLUID LINE WAS…
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DT*: THE CONTACT STATED WHILE APPROACHING A STOP SIGN AT 15 MPH, THE VEHICLE'S BRAKES FAILED. THE DEALERSHIP WOULD NOT ACCEPT THE VEHICLE BECAUSE THE SERVICE DEPARTMENT COULD NOT OFFER AN IMMEDIATE APPOINTMENT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT REPAIR SHOP WHO DETERMINED THE PLASTIC PROTECTION OF THE BRAKE FLUID LINE WAS NOT COMPLETELY COVERING THE LINE RESULTING IN A RUSTED LINE DUE TO CONDENSATION. BRAKE FLUID LEAKED FROM THE LINE CAUSING THE BRAKE FAILURE. *AK THE BRAKE LINE HAD SEVERE RUST. UPDATED 10/02/06. *JB
NHTSA ODI #10165691
124,494 miles · Jun 21, 2006
Service Brakes, Hydraulic
ON MY 2001 GMC SIERRA TRUCK THE WARNING LIGHTS CAME ON FOR THE ABS AND THE PARKING BRAKE I TOOK IT TO THE MECHANIC AND WAS TOLD THE EBCM (ELECTRONIC BRAKE CONTROL MODUL) NEEDS REPLACED. I SPOKE WITH THE MECHANIC AND HE POINTED OUT THAT THERE IS A LOT OF THESE BEING REPLACED ON THIS YEAR OF VEHICLE. *JB
NHTSA ODI #10160355
65,000 miles · Jun 12, 2006
Service Brakes, Hydraulic
(1)TOTAL BRAKE FAILURE DUE TO CORROSION IN BRAKE LINE. BRAKE WENT TO FLOOR, NO BRAKES, FLUID RUNNING OUT ON TO GROUND. (2)NARROWLY MISSED HITTING TRUCK AT INTERSECTION (3) DEALER REPLACING ALL LINES AT COST OF $1000.00. *JB
NHTSA ODI #10159574
Mileage unknown · Jun 7, 2006
Fuel System, Gasoline
THE FUEL GAUGE AND LOW FUEL WARNING SYSTEM ON MY 1999 GMC SIERRA PICKUP HAS NOT WORKED FOR MANY MONTHS. I HAVE BEEN TOLD BY A SERVICE FACILITY I TRUST, THAT THIS IS A COMMON PROBLEM, IS COSTLY TO FIX AND MOST LIKELY WILL FAIL AGAIN SOON. THEY THOUGHT THAT THIS SHOULD BE A RECALL ISSUE. *NM
NHTSA ODI #10159166
Mileage unknown · Jun 6, 2006
Service Brakes, Air
IF SLOWING DOWN TO STOP, I APPLY MY BRAKES, IF I AM GOING OVER ANY BUMBS IN THE ROAD MY BRAKES RELEASE MAKE IT IMPOSSIBLE FOR ME TO STOP IN TIME, SO FOR NO WRECKS BUT IF MY SPEED WAS HIGHER AND HAD TO MAKE A STOP WHERE THERE ARE BUMPS OR RIPPLES IN THE ROAD, THERE WILL BE AN ACCIDENT.
NHTSA ODI #10159158
42,000 miles · May 18, 2005
Service Brakes, Hydraulic
REF. INVESTIGATION # PE05-020. ANTILOCK BRAKE SYSTEM. INCURRING UNWANTED ABS ACTIVATION WITH INCREASED STOPPING DISTANCE AT SLOW SPEEDS. NO ABS WARNING LIGHT ILLUMINATION.
NHTSA ODI #10121364
24,330 miles · May 3, 2005
Service Brakes, Hydraulic
BRAKE FAILURE DUE TO MALFUNCTION OF ANTI-LOCK BRAKE SYSTEM. CAUSED VEHICLE TO COAST THROUGH A RED LIGHT AT A BUSY INTERSECTION. BRAKE PEDAL WENT TO THE FLOOR WITH NO STOPPING CAPABILITY. ANTI-LOCK BRAKE LIGHT ON DASH CAME ON AND STAYED ON. THIS HAS OCCURRED ON THREE SEPERATE OCASSIONS OVER THE LAST THREE YEARS.
NHTSA ODI #10119447
79,398 miles · Dec 19, 2004
Tires
ON JAN.15,2003, I PURCHASED FIVE ( 5 ) DUNLOP ROVER A/T BSL TIRES FOR MY 1999 CHEV SUBURBAN FROM JUST TIRES 408 HADDONFIELD RD. CHERRY HILL, NJ 08034 AND PAID CASH FOR SAME. AT THE END OF OCTOBER 2004, MY WIFE HAD A FLAT TO THE RIGHT REAR OF HER VEHICLE, AAA RESPONDED AND CHANGED THE TIRE FOR HER, WHEN SHE TOOK THE TIRE TO A GA…
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ON JAN.15,2003, I PURCHASED FIVE ( 5 ) DUNLOP ROVER A/T BSL TIRES FOR MY 1999 CHEV SUBURBAN FROM JUST TIRES 408 HADDONFIELD RD. CHERRY HILL, NJ 08034 AND PAID CASH FOR SAME. AT THE END OF OCTOBER 2004, MY WIFE HAD A FLAT TO THE RIGHT REAR OF HER VEHICLE, AAA RESPONDED AND CHANGED THE TIRE FOR HER, WHEN SHE TOOK THE TIRE TO A GARAGE FOR REPAIRS, SHE WAS ADVISED THAT SAID TIRE COULD NOT BE REPAIRED DUE TO SEVER CRACKING OF THE INSIDE TIRE WALL NEAR THE RIM, THE MECHANIC PLACED A PLUG IN SAME AND TOLD HER TO GET THE VEHICLE BACK TO JUST TIRES AND ADVISE THEM THAT HE FOUND ALL THE TIRES TO BE IN THE SAME CONDITION, CAUSING AN UNSAFE VEHICLE. WHEN I TOOK THE VEHICLE AND TIRE TO JUST TIRES, I WAS TOLD THAT DUE TO A PLUG BEING INSERTED INTO THE TIRE, WHICH WAS NOT PLACED BACK ON THE VEHICLE, THE WARRANTIES WERE VOIDED AND THEY WOULD NOT DO ANY THING ABOUT IT. MR. CHRIS PENTZ THE MANAGER FURTHER INFORMED ME THAT SINCE I PURCHASED THESE UNDER A CORPORATE NAME AND PAID CASH IT WAS MY PROBLEM. I AM CONCERNED THAT THESE CRACKS IN THESE TIRES COULD RESULT IN A EQUIPMENT FAILURE AND REQUEST THAT DUNLOP REPLACE SAME. MY ODOMETER READING AT THE TIME OF PURCHASE OF THE TIRES WAS 54078 AND READING AT TIME OF FAILURE WAS 79398. *JB
NHTSA ODI #10104076
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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