NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
509 reports55,500 miles · Aug 7, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHEN THE VEHICLE WAS TAKEN TO A PRIVATE REPAIR SHOP FOR MAINTENANCE, THE MECHANIC OBSERVED THAT THE METAL ON THE REAR ROTOR SHIELDS WAS RUSTED THROUGH. THERE WAS A NHTSA RECALL # 05V379000, PERTAINING TO CORROSION OF THE ANTILOCK SERVICE BRAKES. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VI…
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DT*: THE CONTACT STATED WHEN THE VEHICLE WAS TAKEN TO A PRIVATE REPAIR SHOP FOR MAINTENANCE, THE MECHANIC OBSERVED THAT THE METAL ON THE REAR ROTOR SHIELDS WAS RUSTED THROUGH. THERE WAS A NHTSA RECALL # 05V379000, PERTAINING TO CORROSION OF THE ANTILOCK SERVICE BRAKES. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN.
NHTSA ODI #10164699
11,000 miles · Jul 21, 2006
Unknown Or Other
MY 2002 CHEVY SILVERADO HAS A NO START PROBLEM. THE TRUCK HAS ALWAYS STARTED ON FIRST USE BUT AFTER IT HAS BEEN DRIVEN AND SHUT OFF, MANY TIMES IT DOES NOT RESTART. IT HAS HAPPENED IN ALL TYPES OF WEATHER AND AND EVEN IF ONLY RUNS FOR A SHORT PERIOD. THERE IS NO RHYME OR REASON TO IT. SOMETIMES IT STARTS AND SOMETIMES IT DOE…
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MY 2002 CHEVY SILVERADO HAS A NO START PROBLEM. THE TRUCK HAS ALWAYS STARTED ON FIRST USE BUT AFTER IT HAS BEEN DRIVEN AND SHUT OFF, MANY TIMES IT DOES NOT RESTART. IT HAS HAPPENED IN ALL TYPES OF WEATHER AND AND EVEN IF ONLY RUNS FOR A SHORT PERIOD. THERE IS NO RHYME OR REASON TO IT. SOMETIMES IT STARTS AND SOMETIMES IT DOESN'T. AFTER THE TRUCK SITS FOR ABOUT 2 HOURS, IT USUALLY STARTS AGAIN. I HAVE TAKEN IT INTO THE CHEVY DEALERAND THE STARTER WAS REPLACED. THIS DID NOT CURE THE PROBLEM. SEVERAL MONTHS AGO THEY REPLACED THE PARKING SWITCH AND CONNECTORS. THE PROBLEM IS STILL OCCURRING AND MORE OFTEN. I HAVE TAKEN IT TO THE DEALER AT LEAST 5 OTHER TIMES AND THEY CANNOT IDENTIFY THE PROBLEM. I CANNOT DRIVE THE TRUCK WITHOUT WORRYING THAT I WILL BE STRANDED EVERYTIME I TURN IT OFF.
NHTSA ODI #10163079
79,150 miles · Jul 18, 2006
Seats
DRIVERS SEATBACK HAS BROKEN TWICE IN LESS THAN A YEAR. *NM
NHTSA ODI #10162789
32,000 miles · Jul 10, 2006
Parking Brake
DT*: THE CONTACT STATED WHILE APPLYING PRESSURE TO THE PARKING BRAKE THE PEDAL DOES NOT FEEL FIRM. THE BRAKES CHIRP CONSTANTLY. THERE IS A NHTSA RECALL, # 05V161000, REGARDING THE PARKING BRAKE. THE VIN WAS NOT INCLUDED IN THE RECALL.
NHTSA ODI #10161978
77,100 miles · Jul 10, 2006
Service Brakes, Hydraulic
ABS SYSTEM FAILURE ABS LIGHT ON 77,000 MILES 2002 SILVERADO GM WILL NOT ADMIT IT HAS A MANUFACTURING DEFECT WITH THE ABS SYSTEM - AFTER SEARCHING THE INTERNET I FIND THERE ARE AN ABUNDANT OF ABS FAILURES. *JB
NHTSA ODI #10161949
68,000 miles · Jul 5, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED, WHILE PULLING INTO A PARKING SPACE AT 3 MPH, THERE WAS AN UNWARRANTED ABS ACTIVATION HINDERING THE BRAKES FROM STOPPING THE VEHICLE. THE VEHICLE'S BRAKES WERE INSPECTED AND CLEANED BY DEALER'S MECHANIC. THIS INCIDENT RELATES TO GM'S RECALL # 05068 (WHEEL SPEED SENSOR). THE FAILURE OCCURRED 15 SEPARATE TI…
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DT*: THE CONTACT STATED, WHILE PULLING INTO A PARKING SPACE AT 3 MPH, THERE WAS AN UNWARRANTED ABS ACTIVATION HINDERING THE BRAKES FROM STOPPING THE VEHICLE. THE VEHICLE'S BRAKES WERE INSPECTED AND CLEANED BY DEALER'S MECHANIC. THIS INCIDENT RELATES TO GM'S RECALL # 05068 (WHEEL SPEED SENSOR). THE FAILURE OCCURRED 15 SEPARATE TIMES SINCE THE INSPECTION.*AK UPDATED 7/18/2006 - *NM
NHTSA ODI #10161492
66,000 miles · Jun 26, 2006
Parking Brake
THE PARKING BRAKE HAS FAILED ON MY 2002 CHEVROLET SILVERADO, AS HAS BEEN DESCRIBED IN THE GM RECALL NUMBER 05042. THE FRICTION LININGS HAVE WORN AND CUT INTO THE DRUM, MAKING THE PARKING BRAKE INEFFECTIVE. A GM REPRESENTATIVE TOLD ME MY VEHICLE WAS NOT RECALLED, AND THE ONLY VEHICLES RECALLED WERE VEHICLES THAT HAVE A MANUAL TRA…
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THE PARKING BRAKE HAS FAILED ON MY 2002 CHEVROLET SILVERADO, AS HAS BEEN DESCRIBED IN THE GM RECALL NUMBER 05042. THE FRICTION LININGS HAVE WORN AND CUT INTO THE DRUM, MAKING THE PARKING BRAKE INEFFECTIVE. A GM REPRESENTATIVE TOLD ME MY VEHICLE WAS NOT RECALLED, AND THE ONLY VEHICLES RECALLED WERE VEHICLES THAT HAVE A MANUAL TRANSMISSION. MINE HAS AN AUTOMATIC TRANSMISSION. I BELIEVE MY VEHICLE SHOULD BE INCLUDED IN THE RECALL, DUE TO THE FACT THAT I HAVE TO PARK ON STEEP BOAT RAMPS WHILE LAUNCHING MY BOAT, AND HAVE TO DEPEND ON THE PARKING BRAKE TO HELP HOLD THE VEHICLE FROM ROLLING INTO THE WATER. *NM
NHTSA ODI #10160789
66,000 miles · Jun 26, 2006
Service Brakes, Hydraulic
I OWN A 2002 CHEVROLET SILVERADO 2WD. WHEN APPLYING THE BRAKES AND COMING TO A STOP, THERE IS A PULSATION. IT FEELS AS IF THE ABS IS TAKING OVER AND RELEASING, AND THEN REAPPLYING THE BRAKING ACTION, RAPIDLY, AS I COME TO A STOP. I SPOKE TO A GM REPRESENTATIVE ABOUT A RECALL THAT HAS BEEN ISSUED REGARDING THIS PROBLEM. THE GM RE…
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I OWN A 2002 CHEVROLET SILVERADO 2WD. WHEN APPLYING THE BRAKES AND COMING TO A STOP, THERE IS A PULSATION. IT FEELS AS IF THE ABS IS TAKING OVER AND RELEASING, AND THEN REAPPLYING THE BRAKING ACTION, RAPIDLY, AS I COME TO A STOP. I SPOKE TO A GM REPRESENTATIVE ABOUT A RECALL THAT HAS BEEN ISSUED REGARDING THIS PROBLEM. THE GM RECALL NUMBER IS 05068. THE REPRESENTATIVE TOLD ME THAT MY VIN NUMBER WAS INCLUDED IN THE RECALL, BUT BECAUSE I DON'T LIVE IN A "SALT BELT" STATE, MY VEHICLE IS NOT BEING RECALLED (I LIVE IN FLORIDA). APPARENTLY, IT IS THE ROAD SALT THAT IS USED DURING THE WINTER MONTHS THAT CORRODES THE ABS WHEEL SENSORS AND LEADS TO THIS PROBLEM. AND, ALTHOUGH I DO NOT LIVE IN A STATE THAT USES ROAD SALT, I DO USE MY VEHICLE TO TOW AND LAUNCH A BOAT IN THE SALT WATER. I BELIEVE THAT BECAUSE OF THIS USE, MY VEHICLE SHOULD BE INCLUDED IN THE RECALL. *JB
NHTSA ODI #10160739
84,000 miles · Jun 15, 2006
Latches/locks/linkages
NO PREVIOUS ISSUES LEADING UP TO HOOD LATCH FAILURE - ROUTINE USE OF HOOD LATCH MECHANISM. HOOD LATCH FAILED DURING TRAVEL AT HIGHWAY SPEEDS. VERY FORTUNATE TO EXIT HIGHWAY AFTER SEEING HOOD RISING. THE FOUR WELD SEAMS HOLDING LATCH BODY TO TRUCK FRAME FAILED. WELD SEAMS REMAINED ON TRUCK FRAMEWORK WHILE HOOD LATCH BODY SHOW…
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NO PREVIOUS ISSUES LEADING UP TO HOOD LATCH FAILURE - ROUTINE USE OF HOOD LATCH MECHANISM. HOOD LATCH FAILED DURING TRAVEL AT HIGHWAY SPEEDS. VERY FORTUNATE TO EXIT HIGHWAY AFTER SEEING HOOD RISING. THE FOUR WELD SEAMS HOLDING LATCH BODY TO TRUCK FRAME FAILED. WELD SEAMS REMAINED ON TRUCK FRAMEWORK WHILE HOOD LATCH BODY SHOWED MATERIAL FAILURE. POINTS OF HOOD LATCH CONNECTION AFTER FAILURE -> LATCH HOOK CONNECTED UNDER HOOD; THE HOOD LATCH CABLE CONNECTED. FAILED HOOD LATCH REMAINS AVAILABLE. *JB
NHTSA ODI #10159963
126,000 miles · Jun 6, 2006
Air BagsCrashInjury
WHILE RUNNING AN ERRAND AT LUNCH AN 18 YR. OLD BOY CAME ACROSS 2 LANES OF TRAFFIC TO DO A U-TURN RIGHT IN FRONT OF ME. I WAS TRAVELING AT APPROX. 45-50 MILES AN HOUR WITH A GREEN LIGHT WHEN I HIT HIS SMALLER TRUCK HEAD ON. THE AIR BAGS DID NOT DEPLOY IN MY SILVERADO. THIS IS THE 2ND GM VEHICLE THAT I HAVE OWNED AND BEEN IN DU…
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WHILE RUNNING AN ERRAND AT LUNCH AN 18 YR. OLD BOY CAME ACROSS 2 LANES OF TRAFFIC TO DO A U-TURN RIGHT IN FRONT OF ME. I WAS TRAVELING AT APPROX. 45-50 MILES AN HOUR WITH A GREEN LIGHT WHEN I HIT HIS SMALLER TRUCK HEAD ON. THE AIR BAGS DID NOT DEPLOY IN MY SILVERADO. THIS IS THE 2ND GM VEHICLE THAT I HAVE OWNED AND BEEN IN DURING A SERIOUS CRASH WHERE THE AIRBAGS DID NOT DEPLOY. SOMETHING NEEDS TO BE DONE ABOUT THIS! *NM
NHTSA ODI #10159129
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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