NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
587 reports108,800 miles · Aug 29, 2006
Engine And Engine CoolingExterior LightingPower TrainInjury
DT*: THE CONTACT STATED WHILE STOPPED AT AN INTERSECTION, THE STEERING LOCKED UP, AND THE STEERING WHEEL COULD NOT BE TURNED TO THE LEFT. THIS WAS ACCOMPANIED BY THE THE SOUND OF HYDRAULIC RESISTANCE. THE VEHICLE WAS NOT TAKEN IN FOR SERVICE. SECOND, A PIECE OF PLASTIC FELL OFF THE INTERIOR OF THE VEHICLE. CAUSING THE DRIVE…
Read full complaint
DT*: THE CONTACT STATED WHILE STOPPED AT AN INTERSECTION, THE STEERING LOCKED UP, AND THE STEERING WHEEL COULD NOT BE TURNED TO THE LEFT. THIS WAS ACCOMPANIED BY THE THE SOUND OF HYDRAULIC RESISTANCE. THE VEHICLE WAS NOT TAKEN IN FOR SERVICE. SECOND, A PIECE OF PLASTIC FELL OFF THE INTERIOR OF THE VEHICLE. CAUSING THE DRIVER SEAT TO SLIDE FREELY ON THE ADJUSTER TRACK WHEN THE CONTACT SAT IN THE SEAT. THE VEHICLE WAS TAKEN TO A SERVICE DEALER WHO WAS UNABLE TO DETERMINE THE PROBLEM. THIRD, THE CONTACT REPLACED THE DAYTIME RUNNING LIGHTS TWICE. THE LIGHTS ONLY WORKED FOR 3 TO 6 MONTHS AT A TIME BEFORE HAVING TO BE REPLACED. THE LIGHTS WERE NOT ADDRESSED BY A DEALER OR A PRIVATE REPAIR SHOP. FOURTH, THE HEADLAMP SWITCH CONSTANTLY BECAME EXCESSIVELY HOT DURING OPERATION OF THE HEADLAMPS. THE VEHICLE WAS NOT TAKEN IN FOR INSPECTION OF THE SWITCH. FIFTH, WHEN THE 4-WHEEL DRIVE MODE WAS ENGAGED, THE WHEELS DID NOT TURN INDEPENDENTLY, CAUSING INCREASED EFFORT IN TURNING THE VEHICLE. THIS PROBLEM WAS NOT INSPECTED. SIXTH, THE STARTER FAILED WHILE ATTEMPTING TO START THE VEHICLE. UPON INSPECTION OF THE STARTER, IT WAS NOTICED THAT THE HOUSING WAS CRACKED. A PRIVATE MECHANIC WAS CONSULTED, WHO NOTIFIED THE CONTACT THAT THIS WAS A COMMON PROBLEM. FINALLY, THE PASSENGER SEAT BELT DID NOT FEED ENOUGH TO ALLOW FOR PASSENGER COMFORT WHICH CAUSED THE PASSENGER TO BE ABRAISED BY THE BELT. THE INERTIAL CONTROL SEEMED TO BE INTERMITTENT. THE SEAT BELTS WERE NOT INSPECTED BY EITHER A PRIVATE REPAIR SHOP OR A SERVICE DEALER.
NHTSA ODI #10166856
96,706 miles · Aug 28, 2006
Parking BrakeService Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE ROTATING THE TIRES, THERE WAS EXTREME CORROSION ON THE ROTORS, AND UPON FURTHER INSPECTION THE PARKING BRAKE WAS EXTREMELY WORN AS WELL. THE VEHICLE WAS EXPOSED TO HARSH WINTER WEATHER, BUT ROAD SALTS WERE NOT USED. THERE IS A NHTSA RECALL, #05V161000, REGARDING THE PARKING BRAKE. THE VEHICLE VI…
Read full complaint
DT*: THE CONTACT STATED WHILE ROTATING THE TIRES, THERE WAS EXTREME CORROSION ON THE ROTORS, AND UPON FURTHER INSPECTION THE PARKING BRAKE WAS EXTREMELY WORN AS WELL. THE VEHICLE WAS EXPOSED TO HARSH WINTER WEATHER, BUT ROAD SALTS WERE NOT USED. THERE IS A NHTSA RECALL, #05V161000, REGARDING THE PARKING BRAKE. THE VEHICLE VIN WAS NOT INCLUDED IN THE RECALL. THE MANUFACTURER WAS ALERTED.
NHTSA ODI #10166730
55,000 miles · Aug 17, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED AFTER PARKING THE VEHICLE, A NOISE LIKE A SMALL ELECTRIC MOTOR RUNNING WAS HEARD. THE UNDERSIDE OF THE VEHICLE WAS INSPECTED BY THE CONTACT. THE PLUG TO THE ABS ANTILOCK BRAKE PUMP WAS DISCONNECTED. A SERVICE DEALER WAS CONTACTED AND OFFERED TO DIAGNOSE AND REPLACE THE PUMP AT HALF THE COST. THE MANUFACTU…
Read full complaint
DT*: THE CONTACT STATED AFTER PARKING THE VEHICLE, A NOISE LIKE A SMALL ELECTRIC MOTOR RUNNING WAS HEARD. THE UNDERSIDE OF THE VEHICLE WAS INSPECTED BY THE CONTACT. THE PLUG TO THE ABS ANTILOCK BRAKE PUMP WAS DISCONNECTED. A SERVICE DEALER WAS CONTACTED AND OFFERED TO DIAGNOSE AND REPLACE THE PUMP AT HALF THE COST. THE MANUFACTURER WAS NOTIFIED AND MADE THE SAME OFFER. UPDATED 10/25/2006
NHTSA ODI #10165734
Mileage unknown · Aug 17, 2006
Service Brakes, Hydraulic
MARCH,2004 SHUT OFF TRUCK AND HEARD SOUND (LIKE A SMALL ELECTRIC MOTOR RUNNING) COMING FROM UNDER TRUCK. UNPLUGGED ELECTRICAL CONNECTION TO AVOID RUNNING BATTERY DOWN. CALLED MY MECHANIC AND HE KNEW RIGHT AWAY WHAT WAS WRONG, HE SAID HE HAS SEEN QUITE A FEW OF THE 1999 PICKUPS WITH THE SAME CONDITION. AS A FRIEND HE LOOKED A…
Read full complaint
MARCH,2004 SHUT OFF TRUCK AND HEARD SOUND (LIKE A SMALL ELECTRIC MOTOR RUNNING) COMING FROM UNDER TRUCK. UNPLUGGED ELECTRICAL CONNECTION TO AVOID RUNNING BATTERY DOWN. CALLED MY MECHANIC AND HE KNEW RIGHT AWAY WHAT WAS WRONG, HE SAID HE HAS SEEN QUITE A FEW OF THE 1999 PICKUPS WITH THE SAME CONDITION. AS A FRIEND HE LOOKED AT IT NO CHARGE. SAID IT WOULD BE AROUND $650.00 TO FIX. CALLED CHEVY DEALER AND THEY TOLD ME GM WOULD PAY HALF. I LAUGHED AND SAID THAT'S NOT GOOD ENOUGH. THEY ALSO WANTED $79.00 DIAGNOSTIC FEE. WHAT A JOKE. I WROTE A LETTER TO GM THEY DID NOT RESPOND. I CALLED ON THE PHONE AND GOT ALL THE WAY TO THE SECRETARY OF THE CHEVROLET DIVISION AND SHE WOULD NOT PUT ME THROUGH TO HIM. I'M NOW DRIVING WITH STANDARD BRAKES BUT MY CHILD DRIVE MY TRUCK FROM TIME TO TIME AND FEEL LIKE I'M NOT PROVIDING HIM WITH A SAFE VEHICLE AND I DONT HAVE THE MONEY TO FIX IT. *NM
NHTSA ODI #10165705
71,000 miles · Aug 3, 2006
Fuel System, GasolineVehicle Speed ControlCrash
THROTTLE BODY STICKING AT LOW SPEEDS THROTTLE STICKS UNTIL PEDAL IS PUSHED BEYOND DESIRED POINT CAUSING VEHICLE TO SURGE FORWARD. I HIT GARAGE WALL. EXACT PROBLEM OCCURRED AT 30,000 MILES, DEALER REPLACED THROTTLE BODY(BAD BUSHINGS) UNDER WARRANTY. *JB
NHTSA ODI #10164339
79,617 miles · Jul 27, 2006
Vehicle Speed Control
DT*: THE CONTACT STATED, ON 12/05/05, ALL FORMS AND RECEIPTS WERE TURNED IN TO THE MANUFACTURER FOR REIMBURSEMENT OF A DEFECT REPAIR PERFORMED PRIOR TO THE RECALL. THE COMPONENT FOR THE RECALL WAS THE SPEED SENSOR. THE CUSTOMER SERVICE DEPARTMENT OF THE MANUFACTURER WAS SCHEDULED TO FOLLOW UP WITH INSTRUCTION FOR THE REIMBURSE…
Read full complaint
DT*: THE CONTACT STATED, ON 12/05/05, ALL FORMS AND RECEIPTS WERE TURNED IN TO THE MANUFACTURER FOR REIMBURSEMENT OF A DEFECT REPAIR PERFORMED PRIOR TO THE RECALL. THE COMPONENT FOR THE RECALL WAS THE SPEED SENSOR. THE CUSTOMER SERVICE DEPARTMENT OF THE MANUFACTURER WAS SCHEDULED TO FOLLOW UP WITH INSTRUCTION FOR THE REIMBURSEMENT PROCESS IN TWO BUSINESS DAYS. THERE HAS BEEN NO FOLLOW UP FROM THE MANUFACTURER AND THE CONTACT HAS MADE 5 ATTEMPTS TO OBTAIN THE STATUS OF THE REIMBURSEMENT ON THE RECALL REMEDY REPAIR PRIOR TO THE CAMPAIGN. UPDATED 8/16/2006 - THE CONSUMER HAS RECEIVED REIMBURSEMENT. *NM
NHTSA ODI #10163618
95,000 miles · Jul 24, 2006
Visibility
WINDSHIELD WIPERS FAIL INTERMITTENTLY OR WONT WORK AT ALL. *NM
NHTSA ODI #10163359
115,000 miles · Jul 19, 2006
Power Train
THE VEHICLE IS DRIVEN 1 HOUR AT FREEWAY SPEEDS THEN WHEN ACCELERATING FROM A STOP THE 1-2 UP SHIFT SLAMS INTO 2ND. THE RESULTING HARD UPSHIFT CAUSES A FORWARD UNCONTROLLED LURCH FORWARD. THIS IS PARTICULARLY HAZARDOUS IN RUSH HOUR STOP AND GO TRAFFIC. CORRECTION IS A KNOWN GM ISSUE TSB 01-07-30-023A. BUT NOT AVAILABLE AT MANUFAC…
Read full complaint
THE VEHICLE IS DRIVEN 1 HOUR AT FREEWAY SPEEDS THEN WHEN ACCELERATING FROM A STOP THE 1-2 UP SHIFT SLAMS INTO 2ND. THE RESULTING HARD UPSHIFT CAUSES A FORWARD UNCONTROLLED LURCH FORWARD. THIS IS PARTICULARLY HAZARDOUS IN RUSH HOUR STOP AND GO TRAFFIC. CORRECTION IS A KNOWN GM ISSUE TSB 01-07-30-023A. BUT NOT AVAILABLE AT MANUFACTURERS FINANCIAL PARTICIPATION IF OUT OF BASIC WARRANTY. THE ISSUE IS A DESIGN DEFECT IN MATERIAL SELECTION AND NEEDS TO BE REPLACED ACROSS THE BOARD. THE LURCHING UPSHIFT IS NOT AN IF IT WILL OCCUR ON A VEHICLE BUT A WHEN WILL IT OCCUR SYMPTOM. RESEARCH ON THE COMMONALITY OF THIS DEFECT CAN BE RESEARCHED THROUGH ANY SEARCH ENGINE USING THE DTC P1870. *NM
NHTSA ODI #10162858
84,438 miles · Jun 28, 2006
Parking Brake
COMPLAINT ABOUT REAR PARKING BRAKE AT SERVICE REPAIR SEVERAL TIMES TO DEALERSHIP. I WAS TOLD THAT IS JUST THE WAY IT IS... NOW AT 84,438 MILES AFTER THE EXTENDED WARRANTY IS OVER BY LESS THAN ONE YEAR AND 9,000 MILES, BEING TOLD THE REAR PARKING BRAKE PADS ARE WORN OUT AND NEED TO BE REPLACED. COST WAS NEARLY $300. I WAS TOL…
Read full complaint
COMPLAINT ABOUT REAR PARKING BRAKE AT SERVICE REPAIR SEVERAL TIMES TO DEALERSHIP. I WAS TOLD THAT IS JUST THE WAY IT IS... NOW AT 84,438 MILES AFTER THE EXTENDED WARRANTY IS OVER BY LESS THAN ONE YEAR AND 9,000 MILES, BEING TOLD THE REAR PARKING BRAKE PADS ARE WORN OUT AND NEED TO BE REPLACED. COST WAS NEARLY $300. I WAS TOLD THEY WEAR OUT AS YOU DRIVE AROUND?? *JB
NHTSA ODI #10160983
10 miles · Jun 23, 2006
Service Brakes, Hydraulic
ABS SYSTEMS HAS NEVER WORKED PROPERLY. ABS SYSTEMS CURRENTLY NON-FUNCTIONAL FACTORY RECALL CLEANED WHEEL SENSORS & REQUESTED $2000.00 TO REPAIR PROBLEM. *NM
NHTSA ODI #10160597
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