NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
509 reportsMileage unknown · Jan 31, 2018
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS APPROACHING A STOP SIGN, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED. THE DRIVER HAD TO APPLY FORCE TO STOP THE VEHICLE, WHICH HAD STILL GONE THROUGH THE STOP SIGN DUE TO THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED BY A DEALER. THE VE…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS APPROACHING A STOP SIGN, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED. THE DRIVER HAD TO APPLY FORCE TO STOP THE VEHICLE, WHICH HAD STILL GONE THROUGH THE STOP SIGN DUE TO THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED BY A DEALER. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE VEHICLE WAS EXCLUDED FROM THE BRAKE SYSTEM RECALL. THERE WERE MORE THAN 20 TSBS ON THE BRAKE SYSTEM; HOWEVER, THE MANUFACTURER PROVIDED NO SOLUTION TO REPAIR THE VEHICLE. THE FAILURE MILEAGE WAS NOT AVAILABLE.
NHTSA ODI #11066054
168,000 miles · Jan 22, 2018
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 50 MPH, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO OPERATE. THE CONTACT STATED THAT THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD, WHICH CAUSED THE VEHICLE TO STOP. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE CONTACT WAS A CERTIFIED MECHANIC AND WAS A…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 50 MPH, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO OPERATE. THE CONTACT STATED THAT THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD, WHICH CAUSED THE VEHICLE TO STOP. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE CONTACT WAS A CERTIFIED MECHANIC AND WAS ABLE TO DIAGNOSE THAT THE BRAKE LINE WAS DAMAGED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC). THE APPROXIMATE FAILURE MILEAGE WAS 168,000.
NHTSA ODI #11064120
98,000 miles · Dec 30, 2017
StructureUnknown Or OtherWheelsCrash
I WAS DRIVING ON HWY 495 WHICH IS A CITY ROAD TOWARDS HWY 19 DRIVING APPROX 53 MPH IN CRYSTAL RIVER, FL. THE VECHILE AHEAD OF MY MINE WAS 3 CAR LENGTHS AHEAD WHEN I SAW THERE BRAKE LIGHTS ON, I APPLIED THE USUAL APPROPRIATE BRAKE PRESSURE WHICH IS NO HARDER OR SOFTER THEN ANY OTHER TIME. ONCE I SLOWED DOWN TO 40 MPH IN THE BACK…
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I WAS DRIVING ON HWY 495 WHICH IS A CITY ROAD TOWARDS HWY 19 DRIVING APPROX 53 MPH IN CRYSTAL RIVER, FL. THE VECHILE AHEAD OF MY MINE WAS 3 CAR LENGTHS AHEAD WHEN I SAW THERE BRAKE LIGHTS ON, I APPLIED THE USUAL APPROPRIATE BRAKE PRESSURE WHICH IS NO HARDER OR SOFTER THEN ANY OTHER TIME. ONCE I SLOWED DOWN TO 40 MPH IN THE BACK PASSENGER SIDE REAR TIRE FELT LIKE IT EXPLODED AND HEARD A HUGE EXPLOSIVE TYPE SOUND AND ACTUALLY FELT THE ENTIRE BACK END OF MY SILVERADO LIFT UP AND SHIFT LEFTWARDS INTO THE OPPOSITE LANE CAUSING MY TRUCK TO ALSO GET STRUCK BY ANOTHER TRUCK CAUSING WHAT WAS A EXTREMELY WELL MAINTAINED TRUCK WITHOUT A SINGLE DING OR MECHANICAL ISSUES UNTIL THIS OCCURRED. I AM A ENGINEER AND HAVE NEVER WITNESSED A TIRE THAT LOOKED THE WAY THIS DID , BY SIMPLY DRIVING . I HAVE ALL RECORDS FOR MAINTAINCE,ROTATIONS ETC.. OVERALL I HAVE MADE MULTIPLE COMPLAINTS AND HAVE SPENT 3500 ON TIRES AND REPAIRS AND STILL THE TRUCK NEEDS 4500 MORE . I ALSO HAVE HAD TO REPLACE THE RIM THAT THE TIRE WERE ON AND THESE WERE THE RECOMMENDED TIRES FOR MY TRUCK.
NHTSA ODI #11057511
101,700 miles · Dec 27, 2017
Service Brakes
EXPERIENCING UNWANTED ABS ACTIVATION AT LOW SPEEDS ON DRY ROADS WHEN SLOWING DOWN AND/OR STOPPING, WITH OR WITH OUT PRESSING ON THE BREAKS.
NHTSA ODI #11056852
133,475 miles · Oct 30, 2017
Service BrakesCrash
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO STOP THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO AN UNKNOWN INDEPENDENT MECHANIC…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO STOP THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO AN UNKNOWN INDEPENDENT MECHANIC WHO INFORMED THE CONTACT THAT THE ABS CONTROL MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS TAKEN TO STEWART CHEVROLET (780 SERRAMONTE BLVD, COLMA, CA 94014) WHERE THE CONTACT WAS INFORMED ABOUT AN UNKNOWN MANUFACTURER RECALL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THE VEHICLE WAS NOT BEING REPAIRED PER THE RECALL. THE APPROXIMATE FAILURE MILEAGE WAS 133,475. *TT CONSUMER STATED HE HAD A NUMEROUS CLOSE CALLS WITH THE BRAKES. HAD ONE ACCIDENT WHERE THEY FAILED TO DO THEIR JOBS. UPDATED 8/7/18*JB
NHTSA ODI #11041306
63,000 miles · Oct 20, 2017
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE BACKING OUT OF THE DRIVEWAY, THE BRAKES DID NOT WORK. THE CONTACT HAD TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT SHIFTED TO DRIVE TO PARK THE VEHICLE BACK IN THE DRIVEWAY, BUT THE BRAKES DID NOT WORK AGAIN. THE EMERGENCY BRAKE HAD TO BE UTILIZED. THE CO…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE BACKING OUT OF THE DRIVEWAY, THE BRAKES DID NOT WORK. THE CONTACT HAD TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT SHIFTED TO DRIVE TO PARK THE VEHICLE BACK IN THE DRIVEWAY, BUT THE BRAKES DID NOT WORK AGAIN. THE EMERGENCY BRAKE HAD TO BE UTILIZED. THE CONTACT EXITED THE VEHICLE AND NOTICED BRAKE FLUID ALL OVER THE DRIVEWAY. THE CONTACT LOOKED UNDER THE VEHICLE AND NOTICED THE BRAKE LINES WERE SEVERELY RUSTED TO THE POINT THAT IT WAS HARD TO DETERMINE WHICH OF THE BRAKE LINES WAS LEAKING FLUID. THE VEHICLE WAS TOWED TO THE DEALER (KENDRED CHEVROLET IN SMITHFIELD, MISSOURI) WHERE IT WAS DIAGNOSED THAT ALL THE BRAKE LINES FAILED AND NEEDED REPLACEMENT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 63,000.
NHTSA ODI #11035131
107,000 miles · Oct 10, 2017
Steering
AT LOW SPEEDS MY 2002 CHEVY 4WD WILL NOT TURN TO THE RIGHT. LEFT DOES NOT SEEM TO BE AFFECTED. I HAVE REPLACED THE BELT, AND THE BELT TENSIONER, AND THE IDLER PULLY WITH NO CHANGE TO THE STEERING. I ALSO HAVE REPLACED THE POWER STEERING FLUID ON A REGULAR BASIS (50,000 MILES BETWEEN). I WAS ABOUT TO REPLACE THE POWER STEERING PU…
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AT LOW SPEEDS MY 2002 CHEVY 4WD WILL NOT TURN TO THE RIGHT. LEFT DOES NOT SEEM TO BE AFFECTED. I HAVE REPLACED THE BELT, AND THE BELT TENSIONER, AND THE IDLER PULLY WITH NO CHANGE TO THE STEERING. I ALSO HAVE REPLACED THE POWER STEERING FLUID ON A REGULAR BASIS (50,000 MILES BETWEEN). I WAS ABOUT TO REPLACE THE POWER STEERING PUMP WHEN I FOUND THAT OTHERS HAVE HAD PROBLEMS WITH THE RACK AND PINION. I AM HOPING THIS REPORT WILL CONVINCE GM TO ISSUE A RECALL. TRUCK HAS APPROXIMATELY 107,000 MILES.
NHTSA ODI #11032746
170,000 miles · Oct 3, 2017
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 7 MPH, THE ANTI-LOCK BRAKE SYSTEM ACTIVATED AND PULSATED UNTIL THE VEHICLE STOPPED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT STATED THAT THE FAILURE STARTED INTERMITTENTLY APPROXIMATELY THREE WEEKS AGO AND HAS BECOME WORSE. THE FAI…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 7 MPH, THE ANTI-LOCK BRAKE SYSTEM ACTIVATED AND PULSATED UNTIL THE VEHICLE STOPPED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT STATED THAT THE FAILURE STARTED INTERMITTENTLY APPROXIMATELY THREE WEEKS AGO AND HAS BECOME WORSE. THE FAILURE OCCURRED DAILY. THE VEHICLE WAS NOT DIAGNOSED BY AN INDEPENDENT MECHANIC OR A DEALER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT THE VIN WAS NOT INCLUDED IN A RECALL. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 170,000.
NHTSA ODI #11031601
175,000 miles · Oct 2, 2017
Electrical SystemService BrakesCrash
THE ANTI-LOCK BRAKE SYSTEM ENGAGES AT SLOW SPEEDS CAUSING INABILITY TO STOP. THE ROAD SURFACE DOES NOT MATTER, WET, DRY, DIRT OR PAVED, IT IS A FAILING SYSTEM. THIS WAS A RANDOM PROBLEM, NOW IT HAPPENS ALL THE TIME. THE SYSTEM WILL MAKE A RATCHETING SOUND THEN A GRINDING BEFORE AS YOU COME TO A STOP. YOU HAVE TO BE READY TO LET …
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THE ANTI-LOCK BRAKE SYSTEM ENGAGES AT SLOW SPEEDS CAUSING INABILITY TO STOP. THE ROAD SURFACE DOES NOT MATTER, WET, DRY, DIRT OR PAVED, IT IS A FAILING SYSTEM. THIS WAS A RANDOM PROBLEM, NOW IT HAPPENS ALL THE TIME. THE SYSTEM WILL MAKE A RATCHETING SOUND THEN A GRINDING BEFORE AS YOU COME TO A STOP. YOU HAVE TO BE READY TO LET OFF THE BRAKE AND REAPPLY PRESSURE HOPING IT WORKS. I LIVE IN A NEIGHBORHOOD WITH SMALL CHILDREN RUNNING AROUND EVERYWHERE. I WOULD HATE TO THINK WHAT WOULD HAPPEN IF THESE BRAKES FAILED ME WHEN I REALLY NEEDED THEM.
NHTSA ODI #11030820
172,000 miles · Sep 3, 2017
Service Brakes
ALL BRAKE LINE FOR ENTIRE TRUCK HAD TO BE REPLACED BECAUSE OF RUST ISSUES, AS WELL AS REAR BACKING PLATES WHICH HAD RUSTED COMPLETELY AWAY. ABS SENSORS ARE ACTIVATING AT LOW SPEED ON DRY PAVEMENT CAUSING TRUCK TO TAKE LONGER SPACE TO STOP
NHTSA ODI #11021260
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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