NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
509 reports63,000 miles · Jul 11, 2007
Engine And Engine Cooling
NORMAL DRIVING A T63000 MILES AND CHECK ENGINE LIGHT CODE P0340 FOR (CAMSHAFT SENSOR CIRCUIT MALFUNCTIONED. AN INDDEPENDENT REPAIR SHOP LOCATED A PROBLEM WITH THE DISTRIBUTOR DRIVER GEAR HAVING EXSESSIVE WEAR. GEAR KIT WAS PURCHASE FROM DEALER AND INSTALLED. REPAIR SHOP INDICATED THE GEAR KIT HAD AN ADDITIONAL SPACER WHICH…
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NORMAL DRIVING A T63000 MILES AND CHECK ENGINE LIGHT CODE P0340 FOR (CAMSHAFT SENSOR CIRCUIT MALFUNCTIONED. AN INDDEPENDENT REPAIR SHOP LOCATED A PROBLEM WITH THE DISTRIBUTOR DRIVER GEAR HAVING EXSESSIVE WEAR. GEAR KIT WAS PURCHASE FROM DEALER AND INSTALLED. REPAIR SHOP INDICATED THE GEAR KIT HAD AN ADDITIONAL SPACER WHICH WAS NOT ON THE DISTRIBUTOR ORGINIALLY, THIS SOUNDS LIKE A DESIGN FLAW. CODE WAS CLEARED AND HAS NOT RETURNED. I HAVE THE OLD GEAR.*AK
NHTSA ODI #10196064
64,000 miles · May 29, 2007
StructureTrailer Hitches
OEM HITCH ON 2002 CHEVROLET SILVERADO 1500 IS DISPLAYING CRACKING/FAILURE AROUND THE RECEIVER WELDS. ENTIRE HITCH WILL NEED TO BE REPLACED. *TR
NHTSA ODI #10191884
32,000 miles · May 25, 2007
Electrical System
ODOMETER, AND SHIFT INDICATOR GOES OUT, AND YOU CANNOT TELL WHAT GEAR YOU ARE IN OR YOUR MILEAGE. WARRENTY REPLACED INSTRUMENT CLUSTER A COUPLE OF YEARS AGO. BUT NOW IT IS HAPPENING AGAIN. I WAS TOLD THE CLUSTER WAS BAD AGAIN AND NEEDED REPLACING. BUT IT GOES OFF AND STAYS OFF FOR A WEEK OR LONGER AND THE NEXT THING YOU KNOW IT…
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ODOMETER, AND SHIFT INDICATOR GOES OUT, AND YOU CANNOT TELL WHAT GEAR YOU ARE IN OR YOUR MILEAGE. WARRENTY REPLACED INSTRUMENT CLUSTER A COUPLE OF YEARS AGO. BUT NOW IT IS HAPPENING AGAIN. I WAS TOLD THE CLUSTER WAS BAD AGAIN AND NEEDED REPLACING. BUT IT GOES OFF AND STAYS OFF FOR A WEEK OR LONGER AND THE NEXT THING YOU KNOW ITS BACK ON AGAIN.I HAVE UNPLUGGED THE CONNECOR FROM THE CLUSTER AND REPLUGGED IT IN AND THE CLUSTER WOULD WORK AGAIN, ONLY FOR A SHORT WHILE. LOCAL REPAIR SHOPS HAS TOLD ME THEY HAVE BEEN REGULARLY REPLACING THESE CLUSTERS. THIS COULD CAUSE ACCIDENTALLY PLACING TRANSMISSION IN WRONG GEARS, CAUSING INJURY AND ACCIDENTS.
NHTSA ODI #10191697
72,000 miles · May 1, 2007
Air BagsCrashInjury
EMPLOYEE WAS TRAVELING ON THE INTERSTATE, HAD TO BRAKE HARD TO AVOID TRAFFIC, AND WAS STRUCK IN REAR BY A VEHICLE DOING APPROX 50 MPH. IT PUSHED HIM INTO VEHICLE IN FRONT DAMAGING THE FRONT OF VECH. NO AIRBAG DEPLOYED! THE FORCE OF THE IMPACT KNOCKED HIM UNCONSCIOUS. *TR
NHTSA ODI #10189383
23,820 miles · Apr 28, 2007
Power Train
TRANSMISSION FAILURE ON 02' CHEVROLET SILVERADO AT ONLY 23K MILES. DEALER RECOMMENDS REPLACEMENT. MANY REPORTS OF FAILURES ON GM VEHICLES..PLEASE HELP US. *TR
NHTSA ODI #10189148
85,000 miles · Apr 4, 2007
Parking Brake
TL*- THE CONTACT STATED THAT THE 2002 CHEVROLET SILVERADO 1500, RECEIVED RECALL 05V161000 FOR THE PARKING BRAKES. HE TOOK THE VEHICLE TO THE DEALERSHIP FOR THE RECALL REPAIRS ON 12/2006. SIX DAYS AFTER THE REPAIRS THE WEATHER BECAME COLD ABOUT 30 DEGREES, AND THE EMERGENCY BRAKE BECAME STUCK. HE DID GET THE EMERGENCY BRAKE TO …
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TL*- THE CONTACT STATED THAT THE 2002 CHEVROLET SILVERADO 1500, RECEIVED RECALL 05V161000 FOR THE PARKING BRAKES. HE TOOK THE VEHICLE TO THE DEALERSHIP FOR THE RECALL REPAIRS ON 12/2006. SIX DAYS AFTER THE REPAIRS THE WEATHER BECAME COLD ABOUT 30 DEGREES, AND THE EMERGENCY BRAKE BECAME STUCK. HE DID GET THE EMERGENCY BRAKE TO RELEASE AND DROVE THE VEHICLE 3 MILES WHEN BEGAN SMELLING SOMETHING THAT SMELLED LIKE THE BRAKES BURNING. HE GOT OUT OF THE VEHICLE AND NOTICED THAT THE PASSENGER'S SIDE REAR WHEEL WAS EXTREMELY HOT. HE LET THE VEHICLE COOL DOWN ,AND TRIED TO JAR THE EMERGENCY BRAKE. THEN HE CALLED THE DEALERSHIP, AND THEY REMINDED HIM THAT IN EXTREMELY COLD WEATHER HE SHOULDN'T USE THE EMERGENCY BRAKE. THE BRAKES WERE REPAIRED. THE DEALERSHIP DIDN'T CHARGE HIM FOR THE REPAIR, THEY INFORMED HIM THE RECALL REPAIR HAD NOT BEEN DONE PROPERLY, AND THAT THE EMERGENCY BRAKE WAS ADJUSTED TOO TIGHT. THE CONTACT STATED THAT AFTER THIS REPAIR HE DROVE THE VEHICLE FOR ABOUT A WEEK, AND THE EMERGENCY BRAKE FROZE UP AGAIN. HE FILED A COMPLAINT WITH THE MANUFACTURER, AND WA GIVEN A CASE#71-461637111. THE CONTACT STATED THAT HE HAD TO SELL THE VEHICLE BECAUSE COULDN'T TAKE THE CHANCE WITH THE EMERGENCY BRAKE ON THE ROAD, AND SO HE TRADED THE VEHICLE IN. THE CONTACT HAD ALL THE INFORMATION FOR THIS VEHICLE. THE FAILURE MILEAGE WAS 85,000 MILES.*AK
NHTSA ODI #10187042
49,000 miles · Mar 7, 2007
Power Train
(1) NO EVENTS NOTED LEADING UP TO THE FAILURE. NORMAL DRIVING CONDITIONS WERE IMPLEMENTED. PROPER MAINTENANCE AND INTERVALS WERE OBSERVED. WARRANTY HAD RECENTLY EXPIRED. MILEAGE AT TIME OF FAILURE WAS ~49,000 MILES. (2) TRANSMISSION FAILURE OCCURRED LEAVING FAMILY STRANDED IN MIDDLE OF TRAFFIC. AFTER TROUBLESHOOTING EFFO…
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(1) NO EVENTS NOTED LEADING UP TO THE FAILURE. NORMAL DRIVING CONDITIONS WERE IMPLEMENTED. PROPER MAINTENANCE AND INTERVALS WERE OBSERVED. WARRANTY HAD RECENTLY EXPIRED. MILEAGE AT TIME OF FAILURE WAS ~49,000 MILES. (2) TRANSMISSION FAILURE OCCURRED LEAVING FAMILY STRANDED IN MIDDLE OF TRAFFIC. AFTER TROUBLESHOOTING EFFORTS FROM 2 GARAGES, IT WAS DETERMINED THE SUN REACTION GEAR FAILED. THIS FAILURE HAS NO FOREWARNING AND IS DUE TO INFERIOR QUALITY OF MATERIALS/PARTS USED IN THE TRANSMISSION. THIS EVENT LEFT MY FAMILY STUCK IN TRAFFIC UNTIL, THROUGH TRIAL AND ERROR, IT WAS FOUND THAT 1 GEAR WAS LEFT SEMI-FUNCTIONAL. THE LACK OF REVERSE GEAR ALSO PUT MY FAMILY IN DANGER WHILE ATTEMPTING TO REACH A SAFE AREA, OUT OF TRAFFIC. GM IS AWARE OF THE ISSUE AS NOTED IN NUMEROUS FACTORY TECHNICAL BULLETINS AND CONVERSATIONS HAD BETWEEN MANUFACTURER CUSTOMER SERVICE AND MYSELF BUT ARE UNWILLING TO MAKE ANY STRIDES FOR CORRECTING THE ISSUE OR COMPENSATE FOR DAMAGES. (3) AT MY EXPENSE, THE REPAIR OPTIONS WERE TOTAL REPLACEMENT OF TOTAL REBUILD OF THE TRANSMISSION. WE OPTED TO TOTAL REBUILD FOR 2 REASONS; FIRST - THE REPLACEMENT WAS ONLY AVAILABLE FROM GM AND IT COULD NOT BE VERIFIED IF THE SAME ISSUE WOULD EXIST IN THE REPLACEMENT; SECOND - PROPER REBUILD EXPENSE WAS FOR COST EFFICIENT. THE ORIGINAL DEFECTIVE PART IS AVAILABLE. *JB
NHTSA ODI #10184401
40,000 miles · Feb 28, 2007
Seats
DEFECTIVE HINGE ON CENTER JUMP SEAT (ARM REST) CONSOLE LID. NO ABUSE, ACCIDENT OR COLLISION CAUSED. IT IS A SAFETY HAZARD TO ANYONE USING ARM REST OR REACHING BEHIND SEAT AS THE PART OF THE HINGE THAT BROKE NOW STICKS STRAIGHT UP. IS A CHEVROLET SILVERADO 1500 2002 MODEL. *JB
NHTSA ODI #10183850
66,200 miles · Jan 28, 2007
Power Train
HEARD SEVERAL THINGS COMING FROM UNDER THE CAR WHILE THE AUTOMATIC TRANSMISSION WAS SHIFTING, THEN A CONSTANT WHINNING SOUND WITH NO POWER. HAD TO HAVE THE TRUCK TOWED. DEALER LOOKED AT IT AND DETERMINED IT WAS A TRANSMISSION FAILURE AND THE SUN GEAR ASSEMBLY HAD TO BE REPLACED. COSTS WERE AROUND $1600. THE TRUCK ONLY HAS 66…
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HEARD SEVERAL THINGS COMING FROM UNDER THE CAR WHILE THE AUTOMATIC TRANSMISSION WAS SHIFTING, THEN A CONSTANT WHINNING SOUND WITH NO POWER. HAD TO HAVE THE TRUCK TOWED. DEALER LOOKED AT IT AND DETERMINED IT WAS A TRANSMISSION FAILURE AND THE SUN GEAR ASSEMBLY HAD TO BE REPLACED. COSTS WERE AROUND $1600. THE TRUCK ONLY HAS 66,000 MILES AND IS NOT QUITE FIVE YEARS OLD (2002 CHEVROLET SILVERADO 1500). *NM
NHTSA ODI #10180939
Mileage unknown · Jan 11, 2007
Service Brakes, Hydraulic
TL* - THE CONTACT STATED THAT ON 08/25/06 HE TOOK HIS 2002 CHEVROLET SILVERADO FOR RECALL CAMPAIGN# 05V379000 SERVICE REPAIR, ON THE ABS. AFTER PICKING UP HIS VEHICLE HE CONTINUED TO HAVE THE SAME FAILURE. THE CONTACT STATED THAT IT TAKES LONGER FOR HIM TO COME TO A COMPLETE STOP THAN EXPECTED. THE CONTACT STATED THAT HE HAS …
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TL* - THE CONTACT STATED THAT ON 08/25/06 HE TOOK HIS 2002 CHEVROLET SILVERADO FOR RECALL CAMPAIGN# 05V379000 SERVICE REPAIR, ON THE ABS. AFTER PICKING UP HIS VEHICLE HE CONTINUED TO HAVE THE SAME FAILURE. THE CONTACT STATED THAT IT TAKES LONGER FOR HIM TO COME TO A COMPLETE STOP THAN EXPECTED. THE CONTACT STATED THAT HE HAS INFORMED THE DEALERSHIP ABOUT THIS PROBLEM AND HAS GOTTEN NO RESOLUTION. THE CONTACT STATED THAT THIS HAPPENS ALMOST EVERY DAY HE DRIVES THE VEHICLE REGARDLESS OF THE WEATHER OR ROAD CONDITIONS.
NHTSA ODI #10178426
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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