NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reports61,023 miles · Mar 5, 2007
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2000 CHEVROLET 1500 PICKUP. WHILE DRIVING THE VEHICLE AT SPEEDS RANGING FROM 20 TO 40 MPH AND ATTEMPTING TO APPLY THE BRAKES THE PEDAL MADE COMPLETE CONTACT WITH THE FLOOR. THE FAILURE MILEAGE WAS 61,023. THE BRAKE SHOES AND PADS HAVE BEEN REPLACED ON SEVERAL OCCASIONS ,AND THE FAILURE RECURRED. THE CURR…
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TL* THE CONTACT OWNS A 2000 CHEVROLET 1500 PICKUP. WHILE DRIVING THE VEHICLE AT SPEEDS RANGING FROM 20 TO 40 MPH AND ATTEMPTING TO APPLY THE BRAKES THE PEDAL MADE COMPLETE CONTACT WITH THE FLOOR. THE FAILURE MILEAGE WAS 61,023. THE BRAKE SHOES AND PADS HAVE BEEN REPLACED ON SEVERAL OCCASIONS ,AND THE FAILURE RECURRED. THE CURRENT MILEAGE WAS 62,000. *AK THE ABS ACTIVATED WITHOUT CAUSE. UPDATED 04/05/07 *JB
NHTSA ODI #10184220
83,780 miles · Mar 1, 2007
Service Brakes, Hydraulic
I HAVE OWNED A 2000 CHEVY SILVERADO EXT. CAB 4WD SINCE DECEMBER OF 2001. TODAY I WAS DRIVING TO WORK, AND IT WAS WET OUT. I WAS TRAVELING AT 25 MPH AND AS I WAS SLOWING TO A LIGHT I COMPLETELY STOPPED THE TRUCK. THERE WAS ANOTHER CAR 10 FEET IN FRONT OF ME. AS I STARTED TO PULL AWAY AT AROUND 4 TO 5 MPH THE CAR IN FRONT OF ME S…
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I HAVE OWNED A 2000 CHEVY SILVERADO EXT. CAB 4WD SINCE DECEMBER OF 2001. TODAY I WAS DRIVING TO WORK, AND IT WAS WET OUT. I WAS TRAVELING AT 25 MPH AND AS I WAS SLOWING TO A LIGHT I COMPLETELY STOPPED THE TRUCK. THERE WAS ANOTHER CAR 10 FEET IN FRONT OF ME. AS I STARTED TO PULL AWAY AT AROUND 4 TO 5 MPH THE CAR IN FRONT OF ME STARTED TO SLOW BECAUSE OF TRAFFIC. WHEN I HIT THE BRAKE THE ABS MOTOR STARTED TO PULSATE SO FAST THE TRUCK WOULDN'T STOP AND I NEVER TOOK MY FOOT OFF THE BRAKE PEDAL. I THEN MOVED THE SHIFT LEVER TO PARK AND IT STILL WOULDN'T STOP. I THEN HIT THE CAR IN FRONT OF ME AND THEN I FINALLY STOPPED. THE DRIVER IN FRONT OF ME LUCKILY HAD NO DAMAGE TO HIS CAR SINCE I WAS ONLY DRIVING A FEW MPH. I CONTINUED TO WORK. THE ABS LIGHT NEVER CAME ON. AS I LEFT WORK TO GO TO LUNCH,SAME DAY, I WAS PULLING UP TO A LIGHT AT A VERY BUSY INTERSECTION . I SLOWED WAY AHEAD OF TIME AND CRAWLED TO THE LIGHT AND JUST AS I HIT THE BRAKE TO STOP THE SAME THING HAPPENED WHERE THE ABS MOTOR RAN CONTINUOUSLY AND I COULDN'T STOP THE VEHICLE . I THREW THE TRUCK IN PARK AND IT STILL WOULDN'T STOP AND WAS STARTING TO ENTER THE INTERSECTION ON A RED LIGHT. I THEN STEPPED ON THE PARKING BRAKE AND IT FINALLY STOPPED. I WAS ALMOST KILLED BECAUSE A SEMI JUST STARTED TO PASS ME AND HE WAS TRAVELING AT ABOUT 50 MPH. I THEN TURNED THE TRUCK AROUND AND WENT DOWN THE ROAD TO MY WORK. AS I WAS PARKING THE TRUCK AT MY WORK IT HAPPENED AGAIN,3RD TIME. THE TRUCK IS NOW OUT OF THE EXTENDED WARRANTY AND I CAN'T SEE PAYING 1,500 TO 2,000 DOLLARS TO FIX THIS WHEN IT IS A MANUFACTURER DEFECT. THIS PARTICULAR PROBLEM SHOULD NEVER HAPPEN. THERE SHOULD BE A RECALL FOR THIS PROBLEM OR SOMEONE IS GOING TO BE KILLED, IF THAT HASN'T ALREADY HAPPENED. I WILL NEVER FEEL SAFE DRIVING A CHEVY/GM VEHICLE AGAIN AND WILL TELL EVERYONE I KNOW ABOUT THIS PROBLEM. JUST SO IT'S UNDERSTOOD I'M A VERY SAFE DRIVER AND HAVE AN EXCELLENT DRIVING RECORD. *NM
NHTSA ODI #10183951
91,222 miles · Feb 28, 2007
Service Brakes, HydraulicCrash
THE ABS FAILED IN MY TRUCK, CAUSING ME TO HIT A TRAILER PARKED IN MY DRIVEWAY. WHILE GM HAS ALREADY "REPAIRED" THIS UNDER A PREVIOUS RECALL, THEIR "REPAIR" OBVIOUSLY DOESN'T WORK. THEY WERE UNRESPONSIVE ABOUT MY COMPLAINT, SINCE MY TRUCK HAD ALREADY BEEN "REPAIRED". IF SOMEONE WOULD HAVE BEEN WALKING IN FRONT OF MY TRUCK WHEN TH…
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THE ABS FAILED IN MY TRUCK, CAUSING ME TO HIT A TRAILER PARKED IN MY DRIVEWAY. WHILE GM HAS ALREADY "REPAIRED" THIS UNDER A PREVIOUS RECALL, THEIR "REPAIR" OBVIOUSLY DOESN'T WORK. THEY WERE UNRESPONSIVE ABOUT MY COMPLAINT, SINCE MY TRUCK HAD ALREADY BEEN "REPAIRED". IF SOMEONE WOULD HAVE BEEN WALKING IN FRONT OF MY TRUCK WHEN THE BRAKES FAILED, I WOULD HAVE KILLED THEM. IT IS ONE THING TO HAVE THE RADIO QUIT WORKING, IT IS AN ENTIRELY DIFFERENT THING TO HAVE THE BRAKES TOTALLY FAIL. GM NEEDS TO DO SOMETHING ABOUT THIS BESIDES CLEANING A COUPLE SENSORS. THERE WERE NO WARNING LIGHTS, NO INDICATION WHATSOEVER OF THE IMPENDING FAILURE. I BACKED UP AND THE BRAKES WORKED FINE. THERE ARE STILL NO WARNING LIGHTS. I SPOKE WITH THE DEALERSHIP AND THEIR ANSWER WAS "THERE ISN'T ANYTHING WE CAN TEST FOR THIS INTERMITTENT PROBLEM. WE CAN TRY TO GET IT TO FAIL AND GO FROM THERE". I NOW HAVE A 6000 LB PROJECTILE THAT I HAVE NO IDEA IF IT IS GOING TO STOP OR NOT. I REMOVED THE ABS FUSE UNTIL I CAN FIGURE OUT WHAT TO DO WITH THIS UNRELIABLE PRODUCT. *NM
NHTSA ODI #10183812
73,000 miles · Feb 22, 2007
Structure
TL* - THE CONTACT CALLED REGARDING THE 2000 CHEVROLET SILVERADO. THE CONTACT RECEIVED RECALL 06V06600 FOR HIS TAILGATE HINGES. THE CONTACT STATED THAT THE DEALER WAS ONLY WILLING TO REPLACE THE TAILGATE SUPPORT CABLE, BUT THE TAILGATE HINGES RUSTED AND SHOULD BE REPLACED AS WELL. ACCORDING TO THE RECALL, THE HINGES WERE TO…
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TL* - THE CONTACT CALLED REGARDING THE 2000 CHEVROLET SILVERADO. THE CONTACT RECEIVED RECALL 06V06600 FOR HIS TAILGATE HINGES. THE CONTACT STATED THAT THE DEALER WAS ONLY WILLING TO REPLACE THE TAILGATE SUPPORT CABLE, BUT THE TAILGATE HINGES RUSTED AND SHOULD BE REPLACED AS WELL. ACCORDING TO THE RECALL, THE HINGES WERE TO BE INSPECTED AND REPLACED IF NECESSARY. BEFORE HE RECEIVED THE RECALL LETTER THE TAILGATE CAME OFF BECAUSE ONLY ONE CABLE HINGE WAS HOLDING THE TAILGATE AND THIS CAUSED DAMAGE TO THE BUMPER. THE FAILURE MILEAGE WAS 73,000, AND THE CURRENT MILEAGE WAS 137,000.*AK
NHTSA ODI #10183230
145,000 miles · Feb 19, 2007
Fuel System, Gasoline
FUEL TANK REAR MOUNTING STRAP CORRODED THRU STRAP ON OUTER SIDE OF TRUCK. BREAK OCCURRED ABOUT 1" DOWN OF THE TOP OF THE RUBBER CHAFF PROTECTIVE COATING. RUBBER COATING PROVIDED A POCKET TO TRAP MOISTURE AND INCREASE RATE OF FAILURE. FORWARD STRAP HAS SIMILAR DAMAGE BUT HAS YET TO FAIL. FAILURE OF SECOND STRAP COULD HAVE LEAD TO…
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FUEL TANK REAR MOUNTING STRAP CORRODED THRU STRAP ON OUTER SIDE OF TRUCK. BREAK OCCURRED ABOUT 1" DOWN OF THE TOP OF THE RUBBER CHAFF PROTECTIVE COATING. RUBBER COATING PROVIDED A POCKET TO TRAP MOISTURE AND INCREASE RATE OF FAILURE. FORWARD STRAP HAS SIMILAR DAMAGE BUT HAS YET TO FAIL. FAILURE OF SECOND STRAP COULD HAVE LEAD TO FUEL TANK FALLING ONTO THE ROAD DURING DRIVING CONDITIONS. PLEASE CONTACT ME TO VIEW COMPONENTS. DATE OF REMOVAL WILL BE FEB 20TH 2007. *JB
NHTSA ODI #10182954
82,066 miles · Feb 10, 2007
Parking Brake
MY PARKING BRAKE HAS FAILED ON MY 2000 SILVERADO 1500, 2 TIMES. THE PARKING BRAKE BECAME ENGAGED WHILE DRIVING (THE PEDAL WAS UP AND NO LIGHT WAS SHOWING) CAUSING THE VEHICLE TO DRAG. IT HAD TO BE TOWED TO A GARAGE TO HAVE THE PARKING BRAKE SHOES AND CLIP REPLACED. *JB
NHTSA ODI #10182214
44,700 miles · Jan 23, 2007
Service Brakes, Hydraulic
TL*- THE CONTACT STATED THAT THE 2000 CHEVROLET SILVERADO 1500, HAD ABS PROBLEMS. WHILE DRIVING UNDER 15 MPH THE CONTACT ALMOST HAD TO STAND ON THE BRAKE PEDAL TO GET THE VEHICLE TO COME TO A STOP. THERE WAS A RECALL CAMPAIGN # 05V379000 FOR SERVICE BRAKES, ANTI LOCK. THE CONTACT HAS CONTACTED THE MANUFACTURER, AND FILED A C…
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TL*- THE CONTACT STATED THAT THE 2000 CHEVROLET SILVERADO 1500, HAD ABS PROBLEMS. WHILE DRIVING UNDER 15 MPH THE CONTACT ALMOST HAD TO STAND ON THE BRAKE PEDAL TO GET THE VEHICLE TO COME TO A STOP. THERE WAS A RECALL CAMPAIGN # 05V379000 FOR SERVICE BRAKES, ANTI LOCK. THE CONTACT HAS CONTACTED THE MANUFACTURER, AND FILED A COMPLAINT WITH FILE # 71470052366. THE CONTACT STATED THAT THIS WAS FILE OVER A WEEK AGO. THE CONTACT STATED THAT HE HAS HAD THE SENSORS REPLACED ON 3 OCCASIONS. THE 1ST SENSOR WAS REPLACED AT 45,104 MILES ON 08/02/05, AND THE 2ND SENSOR WAS REPLACED AT 46583 ON 10/24/05 AND THE 3RD WAS REPLACED 01/17/07 WITH 60216 MILES. THE CONTACT BELIEVES THAT THE ABS SHOULD NOT HAVE SO MANY PROBLEMS. THE CONTACT STATED THAT ON 3 OCCASIONS HE HAS BARELY AVERTED A CRASH. *AK
NHTSA ODI #10179505
90,000 miles · Jan 22, 2007
Service Brakes, Hydraulic
ABS WOULD RELEASE THE BRAKES WHEN ATTEMPTING TO STOP; COVERED UNDER RECALL 05V37900 IN THREE OF FOUR SURROUNDING STATES. *JB
NHTSA ODI #10179338
30,000 miles · Jan 9, 2007
Parking Brake
SAME PARKING BRAKE PROBLEM AS COVERED IN RECALL ON TRUCKS WITH MANUAL TRANSMISSION, ONLY MINE IS AN AUTOMATIC AND NOT COVERED. PARKING BRAKE HAS SELDOM BEEN USED YET PEDAL GOES ALL THE WAY TO FLOOR AND DOES NOT HOLD VEHICLE SECURELY SINCE 30,000 MILES, AND CANNOT BE ADJUSTED. PARKING BRAKE SHOES ARE WORN ABNORMALLY WHILE REAR DI…
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SAME PARKING BRAKE PROBLEM AS COVERED IN RECALL ON TRUCKS WITH MANUAL TRANSMISSION, ONLY MINE IS AN AUTOMATIC AND NOT COVERED. PARKING BRAKE HAS SELDOM BEEN USED YET PEDAL GOES ALL THE WAY TO FLOOR AND DOES NOT HOLD VEHICLE SECURELY SINCE 30,000 MILES, AND CANNOT BE ADJUSTED. PARKING BRAKE SHOES ARE WORN ABNORMALLY WHILE REAR DISK BRAKE PADS (ORIGINAL) ARE BARELY WORN. THIS IS A TERRIBLE DESIGN AND NEEDS A RECALL. INTERNET FORUMS ARE FULL OF COMPLAINTS SIMILAR TO MINE ON THIS VEHICLE.
NHTSA ODI #10178158
84,000 miles · Dec 29, 2006
Fuel System, Gasoline
REAR GAS TANK STRAP HAS CARRODED THRU, THIS WAS NOTICED WHEN IWAS HAVING NEW TIRES PUT ON. THE TRUCK HAS 84000 MILES ON IT. I HAVE NOT YET FIXED THE PROBLEM CAUSE IT WAS FOUND YESTERDAY. I USUALLY KEEP A VEHICAL ABOUT 10 YRS., AND NEVER RAN INTO THIS PROBLEM . THE STRAPS SHOULD LAST LONGER THAN 6-7 YRS.
NHTSA ODI #10177295
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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