NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
509 reports46,000 miles · Jan 5, 2007
Power Train
I WAS DRIVING MY 2002 CHEVY 4X4 PICKUP (46,000 MILES) HOME WHEN A LOUD CLANK NOISE OCCURRED AND THEN A HIGH PITCHED GRINDING NOISE FOLLOWED. MY TRUCK WOULD NOT SHIFT NORMALLY (2ND, 4TH, AND REVERSE WERE OUT). I WAS LUCKY TO MAKE IT HOME AS I DRIVE ON A HIGHWAY THROUGH THE NATIONAL FOREST WHERE CELL PHONE COVERAGE IS VERY LIMIT…
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I WAS DRIVING MY 2002 CHEVY 4X4 PICKUP (46,000 MILES) HOME WHEN A LOUD CLANK NOISE OCCURRED AND THEN A HIGH PITCHED GRINDING NOISE FOLLOWED. MY TRUCK WOULD NOT SHIFT NORMALLY (2ND, 4TH, AND REVERSE WERE OUT). I WAS LUCKY TO MAKE IT HOME AS I DRIVE ON A HIGHWAY THROUGH THE NATIONAL FOREST WHERE CELL PHONE COVERAGE IS VERY LIMITED. I TOOK MY PICKUP INTO THE DEALERSHIP AND THEY INDICATED THE PROBLEM WAS WITH MY SUN SHELL IN THE TRANSMISSION. IT HAD APPARENTLY FAILED AND WOULD COST BETWEEN $1300 AND $2500 TO GET EVERYTHING FIXED DEPENDING ON HOW EXTENSIVE THE DAMAGE. I BOUGHT THE PICKUP NEW AND ITS NEVER BEEN OFF-ROAD, TOWED OR HAULED ANYTHING AND ONLY HAS 46,000 MILES. *NM
NHTSA ODI #10177853
117,000 miles · Dec 27, 2006
Parking Brake
TL* - THE CONTACT HAD THE PARKING BRAKE ASSEMBLY REPLACED ON VEHICLE WITH 117000 MILES. THEN, FOUND OUT THAT THERE WAS A RECALL ON THE SAME MODEL AND YEAR FOR THE PARKING BRAKE , BUT THE DEALER WOULD NOT HONOR THE RECALL BECAUSE VIN WAS NOT INCLUDED. THE CONTACT HAS THE REPAIR ORDER FOR THE WORK DONE, AS WELL AS THE PARTS…
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TL* - THE CONTACT HAD THE PARKING BRAKE ASSEMBLY REPLACED ON VEHICLE WITH 117000 MILES. THEN, FOUND OUT THAT THERE WAS A RECALL ON THE SAME MODEL AND YEAR FOR THE PARKING BRAKE , BUT THE DEALER WOULD NOT HONOR THE RECALL BECAUSE VIN WAS NOT INCLUDED. THE CONTACT HAS THE REPAIR ORDER FOR THE WORK DONE, AS WELL AS THE PARTS. ALSO, THE DEALER TOLD THE CONTACT THAT THE PARKING BRAKE WAS DAMAGING THE ROTORS. *AK
NHTSA ODI #10177106
32,514 miles · Dec 20, 2006
Fuel System, Gasoline
TL* - THE CONTACT SAID THAT THE CAP AND ROTOR THAT GOES TO THE SPARK PLUG HAD BEEN REPLACED, BECAUSE OF A RECALL. THE CONTACT SAID THAT THE PARTS WENT BAD A YEAR LATER. HE TOOK THE TRUCK BACK TO THE DEALER (PEARSON BUICK GMC) AND THEY REPLACE THE PARTS AGAIN, BUT THEY CHARGED HIM $100 FOR HIS WARRANTY USE. THE CONTACT SAID T…
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TL* - THE CONTACT SAID THAT THE CAP AND ROTOR THAT GOES TO THE SPARK PLUG HAD BEEN REPLACED, BECAUSE OF A RECALL. THE CONTACT SAID THAT THE PARTS WENT BAD A YEAR LATER. HE TOOK THE TRUCK BACK TO THE DEALER (PEARSON BUICK GMC) AND THEY REPLACE THE PARTS AGAIN, BUT THEY CHARGED HIM $100 FOR HIS WARRANTY USE. THE CONTACT SAID THAT SINCE THE PARTS ARE STILL UNDER RECALL WHY DID THEY CHARGE HIM FOR THIS WARRANTY USE? THE CONTACT HAS REPAIR ORDERS FOR ALL THE WORK.
NHTSA ODI #10176652
Mileage unknown · Dec 18, 2006
Service Brakes, Hydraulic
THE BRAKES ON MY 2002 SILVERADO ARE TERRIBLE. AT LOW SPEEDS THE BRAKE PEDAL GOES TO THE FLOOR AND THE TRUCK WILL NOT STOP. MY WIFE REFUSES TO DRIVE THE TRUCK. I USE IT TO PULL MY 2 HORSE TRAILER AND THE TRAILER BRAKES STOP THE VEHICLE. THE CHEVY RECALL ON THESE BRAKES SHOULD BE EXTENDED TO ALL STATES! I LIVE IN FLORIDA AND OBVIO…
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THE BRAKES ON MY 2002 SILVERADO ARE TERRIBLE. AT LOW SPEEDS THE BRAKE PEDAL GOES TO THE FLOOR AND THE TRUCK WILL NOT STOP. MY WIFE REFUSES TO DRIVE THE TRUCK. I USE IT TO PULL MY 2 HORSE TRAILER AND THE TRAILER BRAKES STOP THE VEHICLE. THE CHEVY RECALL ON THESE BRAKES SHOULD BE EXTENDED TO ALL STATES! I LIVE IN FLORIDA AND OBVIOUSLY MY TRUCK HAS BEEN AFFECTED BY THE FAULTY ABS SENSOR ISSUE. *NM
NHTSA ODI #10176498
Mileage unknown · Dec 18, 2006
Parking Brake
TL*- THE CONTACT FOUND A RECALL FOR THE MANUAL TRASMISSION VERSION OF HIS TRUCK BUT HE IS HAVING THE SAME PARKING BREAK ISSUES WITH HIS TRUCK WHICH IS AN AUTOMATIC. THE DEARLER HAS STATED THAT THERE IS NO RECALL ON THIS VEHICLE. THE MECHANIIC STATES THAT IT WAS A BAD DESIGN.
NHTSA ODI #10176406
70,000 miles · Nov 30, 2006
Service Brakes, HydraulicCrash
DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT 10 MPH IN A PARKING LOT, THERE WAS AN INCREASED STOPPING DISTANCE, AND THE VEHICLE STRUCK A LIGHTING POLE. THERE WERE NO INJURIES BUT THERE WAS VEHICLE DAMAGE SUSTAINED. THE POLICE WERE NOT ALERTED. ALSO, THE DEALER AND MANUFACTURER WERE NOT ALERTED AS WELL. UPDATED…
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DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT 10 MPH IN A PARKING LOT, THERE WAS AN INCREASED STOPPING DISTANCE, AND THE VEHICLE STRUCK A LIGHTING POLE. THERE WERE NO INJURIES BUT THERE WAS VEHICLE DAMAGE SUSTAINED. THE POLICE WERE NOT ALERTED. ALSO, THE DEALER AND MANUFACTURER WERE NOT ALERTED AS WELL. UPDATED 12/28/2006 - THE CONSUMER CONTACTED THE MANUFACTURER. THE MANUFACTURER INFORMED THE CONSUMER THAT A RECALL HAD BEEN ISSUED. THE RECALLED ANTILOCK BRAKES WERE REPLACED BY THE MANUFACTURER. *NM
NHTSA ODI #10174782
Mileage unknown · Nov 29, 2006
Service Brakes, HydraulicSteeringSuspension
DT*: THE CONTACT STATED WHILE BRAKING FROM VARIOUS SPEEDS, THE ANTI-LOCK BRAKE SYSTEM DID NOT ENGAGE AND THE BRAKE PEDAL WENT ALMOST ALL THE WAY TO THE FLOOR OF THE VEHICLE. THIS CAUSED AN EXTENDED STOPPING DISTANCE AND NEARLY CAUSED A CRASH. THERE WAS A NHTSA RECALL #05V379000 WHICH PERTAINS TO THE HYDRAULIC ANTI-LOCK SERVICE…
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DT*: THE CONTACT STATED WHILE BRAKING FROM VARIOUS SPEEDS, THE ANTI-LOCK BRAKE SYSTEM DID NOT ENGAGE AND THE BRAKE PEDAL WENT ALMOST ALL THE WAY TO THE FLOOR OF THE VEHICLE. THIS CAUSED AN EXTENDED STOPPING DISTANCE AND NEARLY CAUSED A CRASH. THERE WAS A NHTSA RECALL #05V379000 WHICH PERTAINS TO THE HYDRAULIC ANTI-LOCK SERVICE BRAKES. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. THE PCV VALVE AND FUEL FILTER WERE REPLACED. THE REAR BRAKE PADS WERE REPLACED AND THE ROTORS WERE MACHINED, THE ROTORS WERE EVENTUALLY REPLACED, THERE WAS NOISE COMING FROM THE FRONT END. THE INTERMEDIATE STEERING SHAFT WAS DRY. UPDATED 01/09/07. *JB
NHTSA ODI #10174659
70,000 miles · Nov 20, 2006
Service Brakes, Hydraulic
WHEN DRIVING ON INTERSTATE BRAKES WILL BEGIN TO APPLY WITHOUT ACTION BY THE DRIVER, CAUSING VIBRATION AND OVER HEATING OF ROTORS AND STIFF BRAKE PEDAL, THIS HAPPENS AFTER ABOUT 15 MILES ON THE INTERSTATE AND BRAKES HAVE NOT BEEN APPLIED. *JB
NHTSA ODI #10173905
97,000 miles · Nov 17, 2006
Service Brakes, HydraulicCrashInjury
WHILE ATTEMPTING TO PARK VEHICLE, THE ABS SYSTEM ACTIVATED FOR APPARENT REASON, CAUSING THE CAR TO HIT A WALL. TOOK VEHICLE TO DEALER, THEY DUPLICATED PROBLEM, TOLD ME THAT THERE WAS A RECALL FOR THAT PROBLEM. GM CONTACTED AND INITIALLY CONFIRMED PROBLEM, NOW AFTER TWO WEEKS THEY ARE DENYING ANY PROBLEM EXIST ... *NM
NHTSA ODI #10173754
52,400 miles · Nov 8, 2006
SteeringTires
DT*: THE CONTACT STATED WHILE TRAVELING 40 MPH, THE VEHICLE PRESENTED PERMANENT TO WORSENING CONDITIONS OF THE STEERING COLUMN. PRIOR WARNINGS INCLUDED WHEN TURNING THE WHEEL TO THE RIGHT, THE VEHICLE MADE A CLICKING SOUND AND VIBRATION WOULD OCCUR. THE STEERING COLUMN GRADUALLY BECAME MORE DIFFICULT TO TURN. THE VEHICLE WAS …
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DT*: THE CONTACT STATED WHILE TRAVELING 40 MPH, THE VEHICLE PRESENTED PERMANENT TO WORSENING CONDITIONS OF THE STEERING COLUMN. PRIOR WARNINGS INCLUDED WHEN TURNING THE WHEEL TO THE RIGHT, THE VEHICLE MADE A CLICKING SOUND AND VIBRATION WOULD OCCUR. THE STEERING COLUMN GRADUALLY BECAME MORE DIFFICULT TO TURN. THE VEHICLE WAS TAKEN TO THE DEALER TEN SEPARATE OCCASIONS FOR THE SAME REPAIRS CONCERNING THE STEERING. UPON EXAMINATION, THE DEALER DETERMINED THAT THE STEERING SHAFT NEEDED LUBRICATION AND THAT THE VEHICLE WOULD NEED LUBRICATION MAINTENANCE EVERY 4,000 MILES. ALSO, THE INTERIOR SHAFT WAS WORN AND THE BELT WAS BROKEN. THE DEALER REPLACED MOUNT CUSHIONS, REPAIRED THE BUSHING AND STEERING GEAR, AND PROVIDED STEERING SHAFT WITH A LUBE KIT. PRIOR EXAMINATIONS MADE BY THE DEALER COULD NOT IDENTIFY THE CAUSE OF THE PROBLEM. THE LEFT REAR TIRE HAD A BROKEN BELT. UPDATED 12/01/06. *JB
NHTSA ODI #10172955
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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