NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
147 reportsClear category filter39,700 miles · Jun 9, 2005
Service Brakes, Hydraulic
I HAD PROBLEMS WITH THE ABS BRAKES ENGAGING AT SLOW SPEED AND WHEN COMING TO A STOP ON MY 2001 CHEVY SILVERADO. IN NOVEMBER 2004 THE BRAKES FAILED TO STOP THE VEHICLE (ABS WAS ENGAGED ON DRY PAVEMENT) WHEN PULLING OUT OF A DRIVEWAY ONTO A BUSY HIGHWAY, RESULTING IN A NEAR COLLISION WITH ANOTHER VEHICLE. REPAIRS WERE DONE AT…
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I HAD PROBLEMS WITH THE ABS BRAKES ENGAGING AT SLOW SPEED AND WHEN COMING TO A STOP ON MY 2001 CHEVY SILVERADO. IN NOVEMBER 2004 THE BRAKES FAILED TO STOP THE VEHICLE (ABS WAS ENGAGED ON DRY PAVEMENT) WHEN PULLING OUT OF A DRIVEWAY ONTO A BUSY HIGHWAY, RESULTING IN A NEAR COLLISION WITH ANOTHER VEHICLE. REPAIRS WERE DONE AT A LOCAL GM DEALER AND THEY HAD TO REPLACE SENSORS IN THE WHEELS BECAUSE OF CORROSION, I BELIEVE AS A RESULT OF DEFECTIVE ENGINEERING. MY TRUCK HAD LESS THAN 40,000 MILES ON IT, AND WAS DRIVEN IN A NORMAL FASHION WHEN THE PROBLEM FIRST APPEARED.
NHTSA ODI #10124665
37,441 miles · May 6, 2005
Service Brakes, Hydraulic
ANTI-LOCK BRAKES ENGAGING AT SLOW SPEEDS IN CLEAR AND DRY WEATHER. WOULD NOT STOP IN TIME WHILE TRYING TO PARK IN A HOSPITAL PARKING LOT . VEHICLE WENT PAST INTENDED STOP IN LOT AND JUST MISSED A PEDESTRIAN. TRUCK WAS STOPPED BY CURB. TRUCK WAS TAKEN TO LOCAL SHOP NOT UNDER WARRANTY. CAUSE OF BRAKING PROBLEM WAS CORROSION ON WHE…
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ANTI-LOCK BRAKES ENGAGING AT SLOW SPEEDS IN CLEAR AND DRY WEATHER. WOULD NOT STOP IN TIME WHILE TRYING TO PARK IN A HOSPITAL PARKING LOT . VEHICLE WENT PAST INTENDED STOP IN LOT AND JUST MISSED A PEDESTRIAN. TRUCK WAS STOPPED BY CURB. TRUCK WAS TAKEN TO LOCAL SHOP NOT UNDER WARRANTY. CAUSE OF BRAKING PROBLEM WAS CORROSION ON WHEEL SENSORS. REAR SENSORS WHERE CLEANED. FRONT LEFT CALIPER AND PADS WERE DAMAGED REQUIRING REPLACEMENT OF BOTH FRONT CALIPERS( REPLACEMENT IN SET ONLY REQUIRED)WILL CHECK TO SEE IF OLD PART IS STILL AVAILABLE. REAR SENSORS HAVE NOT BEEN REPLACED.
NHTSA ODI #10120036
60,000 miles · Apr 28, 2005
Service Brakes, HydraulicSuspension
THE OWNER COMPLAINED ABOUT A BRAKE PROBLEM. WHEN APPLYING THE BRAKES THEY HARDENED, AND THE VEHICLE WOULD NOT STOP. ALSO THE OWNER CHANGED THE BRAKE PADS, ROTORS, AND BLED THE BRAKES. CURRENTLY, THE VEHICLE STILL DOESN'T HAVE MUCH BRAKING POWER. *AK THE PROBLEM WAS FOUND TO BE THE RIGHT FRONT BEARING AND THE HUB SENSOR.…
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THE OWNER COMPLAINED ABOUT A BRAKE PROBLEM. WHEN APPLYING THE BRAKES THEY HARDENED, AND THE VEHICLE WOULD NOT STOP. ALSO THE OWNER CHANGED THE BRAKE PADS, ROTORS, AND BLED THE BRAKES. CURRENTLY, THE VEHICLE STILL DOESN'T HAVE MUCH BRAKING POWER. *AK THE PROBLEM WAS FOUND TO BE THE RIGHT FRONT BEARING AND THE HUB SENSOR. *SC *JB
NHTSA ODI #10111625
57,000 miles · Jan 13, 2005
Service Brakes, Hydraulic
ABS BRAKE FAULTY SENSOR ON 2001 SILVERADO ENGAGES ON DRY SURFACES AT LOW SPEEDS. THE SAFETY ISSUE CONCERNS INCREASED STOPPING DISTANCE, AND IT OCCURS WITHOUT WARNING. FURTHER, THE DEALER ONLY OFFERS TO CLEAN THEM OR REPLACE THE DEFECT AT THE OWNERS EXPENSE. *NM
NHTSA ODI #10106254
Mileage unknown · Jan 6, 2005
Electrical SystemEngine And Engine CoolingExterior Lighting
THE CONSUMER REQUESTED ASSISTANCE FOR 15 FAILURES AND OR PROBLEMS WITH GM 2001 CHEVY TRUCK. *BF THE STEERING ROD ASSEMBLY WOULD POP WHEN THE STEERING WHEEL WAS TURNED, THE SHIFTER BOOT RIPPED IMMEDIATELY, THE TAILGATE STRAPS BROKE AND BENT THE TAILGATE, THE PCV VALVE WAS USING 4 QUARTS OF OIL AND THE DEALER WAS UNABLE TO FIN…
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THE CONSUMER REQUESTED ASSISTANCE FOR 15 FAILURES AND OR PROBLEMS WITH GM 2001 CHEVY TRUCK. *BF THE STEERING ROD ASSEMBLY WOULD POP WHEN THE STEERING WHEEL WAS TURNED, THE SHIFTER BOOT RIPPED IMMEDIATELY, THE TAILGATE STRAPS BROKE AND BENT THE TAILGATE, THE PCV VALVE WAS USING 4 QUARTS OF OIL AND THE DEALER WAS UNABLE TO FIND THE PROBLEM, THE BATTERY EXPLODED AT 40K MILES, THE RIGHT REAR BRAKE ON THE INSIDE HAD WORN DOWN THE METAL, THE LIGHTS ON THE STEREO BURNED OUT, THE LIGHTS HAD BURNED OUT, THE VALVE COVER WERE LEAKING OIL BEFORE 100K MILES, THE FUR WHEEL DRIVE SWITCH HAD BROKEN AT 50K MILES, THE TRANSMISSION DID NOT SHIFT AT 1K MILES AND THE DEALERS WERE UNABLE TO FIND THE PROBLEM, THE ENGINE EXPERIENCED A PRE-IGNITION KNOCK AND THE DEALER WAS UNABLE TO FIND THE PROBLEM, THE DRIVER'S SEAT CONTROLS RIPPED AT 60K MILES, THE TRANSMISSION HAD COMPLETE GONE OUT AT 118K MILES AND THE SEAT BELTS LATCH SYSTEM HAD BECOME DEFECTIVE. *SC
NHTSA ODI #10109401
51,000 miles · Jan 6, 2005
Service Brakes, Hydraulic
WHEN THE CONSUMER DROVE OVER 5 MPH THE WHEEL SENSOR KICKED IN AND THE VEHICLE WILL NOT STOP. THE CONSUMER HAD THE BRAKES SERVICED. *JB THE CONSUMER STATED THAT THE SENSOR IN THE WHEEL BEARING WAS REPORTING BAD INFORMATION. ALL BRAKES WHERE REPLACED AND THE PROBLEM STILL EXISTED. *TC
NHTSA ODI #10101492
Mileage unknown · Oct 15, 2004
Service Brakes, Hydraulic
BATTERY FAILURE, FRONT AND REAR ROTORS PROBLEM. * BF
NHTSA ODI #10097463
29,500 miles · Aug 31, 2004
Service Brakes, Hydraulic
THE CONSUMER TOOK THE VEHICLE TO DEALER TO HAVE THE TIRES ROTATED, WHEN IT WAS DISCOVERED THAT THE ROTORS RUSTED AND THE PADS NEEDED TO BE REPLACED. THE CONSUMER MAD COMPLAINT WITH THE MANUFACTURER SINCE THIS WAS THE FIRST SERVICING SINCE THE CONSUMER PURCHASED THE VEHICLE. THE CONSUMER IS AWARE OF OTHER VEHICLES WITH SIMILA…
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THE CONSUMER TOOK THE VEHICLE TO DEALER TO HAVE THE TIRES ROTATED, WHEN IT WAS DISCOVERED THAT THE ROTORS RUSTED AND THE PADS NEEDED TO BE REPLACED. THE CONSUMER MAD COMPLAINT WITH THE MANUFACTURER SINCE THIS WAS THE FIRST SERVICING SINCE THE CONSUMER PURCHASED THE VEHICLE. THE CONSUMER IS AWARE OF OTHER VEHICLES WITH SIMILAR PROBLEMS. *AK THERE WAS EXTENSIVE RUSTING AND PITTING OF THE BRAKE SYSTEM. *SC
NHTSA ODI #10081948
70,000 miles · Apr 1, 2004
Service Brakes, Hydraulic
FAULTY ABS MODULE; ABS PUMP KEPT RUNNING AFTER ENGINE IGNITION TURNED OFF. PART 88982296.*AK
NHTSA ODI #10064327
Mileage unknown · Jan 27, 2004
Service Brakes, Hydraulic
ANTI LOCK BRAKE SYSTEM. YOU HAVE TO PUSH ON THE BRAKES WITH BOTH FEET IN ORDER TO GET THE TRUCK TO STOP. I HAVE SEVERAL FRIENDS WHOM ARE HAVING THE SAME PROBLEM. *JB
NHTSA ODI #10054974
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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