NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reportsMileage unknown · Dec 21, 2006
Exterior Lighting
FLASHER IS CONSTANTLY CLICKING WHEN NO BLINKER OR HAZARD LIGHT ARE TURNED ON WHICH CAUSES YOU TO BELIEVE THAT YOU HAVE YOUR TURN SIGNAL ON SO THAT YOU CAN PERFORM A TURN OR LANE CHANGE IN WHICH MAY CAUSE AN ACCIDENT DUE TO THE FALSE SENSE OF THE CLICKING OF THE FLASHER. I'VE REPLACED IT TWICE AND IT CONTINUES. YOU COME TO DEPEND…
Read full complaint
FLASHER IS CONSTANTLY CLICKING WHEN NO BLINKER OR HAZARD LIGHT ARE TURNED ON WHICH CAUSES YOU TO BELIEVE THAT YOU HAVE YOUR TURN SIGNAL ON SO THAT YOU CAN PERFORM A TURN OR LANE CHANGE IN WHICH MAY CAUSE AN ACCIDENT DUE TO THE FALSE SENSE OF THE CLICKING OF THE FLASHER. I'VE REPLACED IT TWICE AND IT CONTINUES. YOU COME TO DEPEND ON THE BLINKER LIGHTS AND FLASHER CLICKING TO HELP LET YOU KNOW THAT YOUR BLINKER IS ON. IT STARTED OFF GRADUALLY FROM CLICKING TO 20-60 SECONDS THEN JUST CONSTANTLY. *NM
NHTSA ODI #10176715
91,200 miles · Dec 12, 2006
Fuel System, Other
I OWN A 2000 CHEVY SILVERADO (4.3) WITH 92K MILES. MY PROBLEM IS WITH THE FAULTY FUEL SENDING UNIT THAT LEFT ME STRANDED ON THE EXPRESSWAY AND ALMOST CAUSED AN ACCIDENT. THE GAS GAUGE INDICATED 1/2 TANK FULL. NOW THE GAUGE INDICATES EMPTY WHEN I FILL THE TANK COMPLETELY. THIS IS A VERY EXPENSIVE REPAIR THAT I THINK CHEVY SHOULD …
Read full complaint
I OWN A 2000 CHEVY SILVERADO (4.3) WITH 92K MILES. MY PROBLEM IS WITH THE FAULTY FUEL SENDING UNIT THAT LEFT ME STRANDED ON THE EXPRESSWAY AND ALMOST CAUSED AN ACCIDENT. THE GAS GAUGE INDICATED 1/2 TANK FULL. NOW THE GAUGE INDICATES EMPTY WHEN I FILL THE TANK COMPLETELY. THIS IS A VERY EXPENSIVE REPAIR THAT I THINK CHEVY SHOULD REPLACE I AM NOT THE ONLY ONE WITH THIS UNSTABLE PROBLEM. THE FUEL GAUGE IS ERRATIC AT ALL TIMES AND NOW I GAUGE MY TRAVELS BY USING THE ODOMETER AND ALLOWING ONLY 300 MILES PER FULL TANK. *JB
NHTSA ODI #10175937
105,000 miles · Nov 10, 2006
Structure
TAIL GATE STRAP RECALL APRIL 2004 GM STATES STRAPS ARE DEFECTIVE MUST BE REPLACED WITH NEW STAINLESS STEEL STRAPS. NOV. 2006 STRAPS ARE RUSTED AND CORRODED. STRAPS NOT STAINLESS STEEL . I FEEL GM FALSELY MISS LED OWNERS OF THE 2000 SILVERADO TRUCKS AND OTHER VEHICLES AFFECTED BY THIS RECALL. *JB
NHTSA ODI #10173160
36,000 miles · Nov 8, 2006
Parking Brake
PARKING BRAKE DOES NOT WORK IN MY 2000 SILVERADO 1500 EQUIPPED WITH AN AUTOMATIC TRANSMISSION. UNDERSTANDING THAT A RECALL FOR THE MANUALS HAS BEEN MADE, I FEEL THAT IT IS NECESSARY TO DO THE SAME FOR AUTOMATICS, TO RELIEVE UNDUE STRESS ON POWER TRAIN WHEN PARKED ON A HILL. THE PARKING BRAKE HAS NOT WORKED SINCE THE TRUCK REACH…
Read full complaint
PARKING BRAKE DOES NOT WORK IN MY 2000 SILVERADO 1500 EQUIPPED WITH AN AUTOMATIC TRANSMISSION. UNDERSTANDING THAT A RECALL FOR THE MANUALS HAS BEEN MADE, I FEEL THAT IT IS NECESSARY TO DO THE SAME FOR AUTOMATICS, TO RELIEVE UNDUE STRESS ON POWER TRAIN WHEN PARKED ON A HILL. THE PARKING BRAKE HAS NOT WORKED SINCE THE TRUCK REACHED 36,000 MILE'S. *NM
NHTSA ODI #10172995
129,900 miles · Nov 8, 2006
Fuel System, Gasoline
FUEL LINES RUNNING UNDER THE TRUCK ARE RUSTED , CAUSING A LEAK WHEN THE TRUCK IS RUNNING AND THEREAFTER UNTIL THE FUEL LINE IS DRAINED WHEN THE MOTOR IS TURNED OFF. *NM
NHTSA ODI #10172982
16,000 miles · Nov 8, 2006
Parking BrakeService Brakes, Hydraulic
2000 SILVERADO 4 WHEEL DRIVE VIN 2GCEK19T6Y13XXXXX REAR BRAKES CORRODE EVERY 8,000 MILES TO THE POINT OF BEING TOTALLY INEFFECTIVE AT STOPPING THE VEHICLE. ALSO PARKING BRAKES REQUIRE READJUSTMENT AT 8,000 MILES BECAUSE THEY WEAR OUT NOT EVEN BEING USED. THIS I SEE WAS A RECALL FOR MANUAL TRANSMISSIONS, AUTOMATIC TRANSMISSIONS…
Read full complaint
2000 SILVERADO 4 WHEEL DRIVE VIN 2GCEK19T6Y13XXXXX REAR BRAKES CORRODE EVERY 8,000 MILES TO THE POINT OF BEING TOTALLY INEFFECTIVE AT STOPPING THE VEHICLE. ALSO PARKING BRAKES REQUIRE READJUSTMENT AT 8,000 MILES BECAUSE THEY WEAR OUT NOT EVEN BEING USED. THIS I SEE WAS A RECALL FOR MANUAL TRANSMISSIONS, AUTOMATIC TRANSMISSIONS SUFFER THE SAME PROBLEM BUT NO RECALL.NHTSA RECALL#05V1610000.THE REAR BRAKE PADS WEAR OUT EVERY 30,000 MILES THE FRONT BRAKE PADS EVERY 100,000 MILES THIS I BELIEVE IS THE CAUSE OF MANY VEHICLE ACCIDENTS ,THIS IS BECAUSE THE VEHICLE IS ONLY BEING STOPPED BY ONE SET OF BRAKES WHICH CAUSES THE ABS TO COME ON PREMATURELY.THIS ALL STARTED IN THE YEAR 2000 AND STILL CONTINUES TODAY NOVEMBER 2006. *NM
NHTSA ODI #10172981
90,000 miles · Oct 18, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED THE ANTILOCK BRAKING SYSTEM FAILED WHILE DRIVING 10 MPH. A NHTSA RECALL #05V379000 PERTAINING TO SERVICE BRAKES, HYDRAULIC:ANTILOCK WAS PERFORMED ON THE VEHICLE. AFTER THE REPAIRS, THE BRAKES WERE STILL INOPERABLE.
NHTSA ODI #10171171
Mileage unknown · Oct 18, 2006
Electrical System
GAS GAGE CONSISTANTLY CHANGING. SEEMS TO BE BAD DESIGN ON THESE MODELS. EVERYONE I KNOW THAT HAS AROUND THIS SAME YEAR HAS THIS PROBLEM. FAILURE TO WORK CAN LEAVE A PERSON STRANDED. I WAS TOLD BY TWO DIFFERENT CHEVROLET DEALERS THAT THIS IS A BAD DESIGN AND THAT THE FUEL PUMP HAS TO BE CHANGED TO FIX THE PROBLEM. *NM
NHTSA ODI #10171154
153,000 miles · Oct 11, 2006
Parking Brake
DT*: THE CONTACT STATED WHILE THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC SHOP FOR BRAKE SERVICE, IT WAS DETERMINED THE REAR PARKING BRAKE PADS WERE WORN OUT. THE MECHANIC ALSO FOUND A NHTSA RECALL #05V161000 REGARDING THE PARKING BRAKE VIA WEBSITE SIMILAR TO THE PROBLEMS THE VEHICLE HAD. THE MANUFACTURER WAS CONTACTED AN…
Read full complaint
DT*: THE CONTACT STATED WHILE THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC SHOP FOR BRAKE SERVICE, IT WAS DETERMINED THE REAR PARKING BRAKE PADS WERE WORN OUT. THE MECHANIC ALSO FOUND A NHTSA RECALL #05V161000 REGARDING THE PARKING BRAKE VIA WEBSITE SIMILAR TO THE PROBLEMS THE VEHICLE HAD. THE MANUFACTURER WAS CONTACTED AND EXPRESSED THAT THE RECALL WAS FOR VEHICLES WITH MANUAL TRANSMISSIONS. THE CONTACT'S VEHICLE HAD AN AUTOMATIC TRANSMISSION, BUT HAD THE SAME PROBLEMS STATED IN THE RECALL. UPDATED 10/30/06. *JB
NHTSA ODI #10170562
70,000 miles · Oct 5, 2006
Air BagsTiresCrashInjury
DT*: THE CONTACT STATED WHILE DRIVING 35 MPH, THE VEHICLE WAS INVOLVED IN A COLLISION WITH A ROADSIDE BARRIER. NEITHER AIR BAG DEPLOYED UPON IMPACT. THE CONTACT WAS TAKEN TO A HOSPITAL WITH NECK INJURIES, FRACTURES OF THE RIBS AND FOOT, AND FACIAL LACERATIONS. A POLICE REPORT WAS TAKEN, AND THE VEHICLE WAS CONSIDERED A TOTAL …
Read full complaint
DT*: THE CONTACT STATED WHILE DRIVING 35 MPH, THE VEHICLE WAS INVOLVED IN A COLLISION WITH A ROADSIDE BARRIER. NEITHER AIR BAG DEPLOYED UPON IMPACT. THE CONTACT WAS TAKEN TO A HOSPITAL WITH NECK INJURIES, FRACTURES OF THE RIBS AND FOOT, AND FACIAL LACERATIONS. A POLICE REPORT WAS TAKEN, AND THE VEHICLE WAS CONSIDERED A TOTAL LOSS. THE VEHICLE WAS NOT SEEN BY A DEALER. UPDATED 10/25/2006 - *NM
NHTSA ODI #10169996
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.
Illustration