NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
53 reportsClear category filter86,000 miles · Oct 16, 2010
Service Brakes, Hydraulic
I HAVE HAD TO REPLACE FRONT WHEEL ABS SPEED SENSORS AND RELATED PARTS TWICE ON MY 2002 GMC SIERRA 1500. THE FIRST TIME WAS IN 2006, THE SECOND JUST THIS WEEK. THE TRUCK HAS JUST OVER 86000 MILES. THE ABS ENGAGED BELOW 10 MPH. I ALMOST HIT OTHER CARS OR OBJECTS SEVERAL TIMES WHEN THIS OCCURRED. SPEED SENSORS WERE CORRODED. H…
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I HAVE HAD TO REPLACE FRONT WHEEL ABS SPEED SENSORS AND RELATED PARTS TWICE ON MY 2002 GMC SIERRA 1500. THE FIRST TIME WAS IN 2006, THE SECOND JUST THIS WEEK. THE TRUCK HAS JUST OVER 86000 MILES. THE ABS ENGAGED BELOW 10 MPH. I ALMOST HIT OTHER CARS OR OBJECTS SEVERAL TIMES WHEN THIS OCCURRED. SPEED SENSORS WERE CORRODED. HUB BEARINGS WERE ALSO REPLACED DUE TO SPEED RING FAULTS. IT HAS COST ME OVER $1500 BOTH TIMES TO HAVE THIS WORK DONE TO MAKE MY TRUCK SAFE TO DRIVE. MY REQUEST FOR WARRANTY COVERAGE WAS DENIED. *TR
NHTSA ODI #10360733
27,000 miles · Sep 30, 2010
Service Brakes, Hydraulic
2002 GMC SIERRA BRAKE LINE BLEW, FOLLOW UP SHOWS MASSIVE RUST INCLUDING PARTS OF FRAME - SO BAD THAT BRAKE BLEEDERS ON ROTORS ARE A PILE OF RUST, CANNOT BE OPENED. ALL BRAKE LINE FITTINGS RUSTED BEYOND REMOVAL WITH A WRENCH, THEREFORE REPAIR SHOP COULD NOT PROVIDE A REMEDY. 27,000 MILES. *TR
NHTSA ODI #10358419
60,600 miles · Aug 27, 2010
Service Brakes, Hydraulic
ABS SENSOR ACTIVATION AT SLOW SPEED. THE TRUCK DOES NOT STOP NORMALLY WHEN BRAKES APPLIED AT SLOW SPEED. THIS IS A KNOWN DEFECT BY GM AND NHTSA. RECALLS HAVE BEEN DONE BUT NOT IN MY STATE. THIS IS A SAFETY ISSUE AND THE RECALL NEEDS TO BE EXPANDED TO ALL AFFECTED VEHICLES. DESPITE GM SAYING THAT THIS ISSUE IS LIMITED TO 20 …
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ABS SENSOR ACTIVATION AT SLOW SPEED. THE TRUCK DOES NOT STOP NORMALLY WHEN BRAKES APPLIED AT SLOW SPEED. THIS IS A KNOWN DEFECT BY GM AND NHTSA. RECALLS HAVE BEEN DONE BUT NOT IN MY STATE. THIS IS A SAFETY ISSUE AND THE RECALL NEEDS TO BE EXPANDED TO ALL AFFECTED VEHICLES. DESPITE GM SAYING THAT THIS ISSUE IS LIMITED TO 20 STATES AND CANADA, THIS IS NOT TRUE. A SEARCH OF THE INTERNET HAS SHOWN THIS DEFECT IS NATIONWIDE. ABS WAS ADDED TO VEHICLES TO HELP PREVENT CRASHES. THIS DEFECT CAUSES THEM. *TR
NHTSA ODI #10352249
51,725 miles · Aug 18, 2010
Service Brakes, Hydraulic
MOMENTS AFTER LEAVING THE DRIVEWAY AT OUR HOME, APPROACHING AN INTERSECTION AT ABOUT 25 MPH, I APPLIED THE BRAKES ON MY 2002 GMC SIERRA, AND THE PEDAL WENT TO THE FLOOR. I COULDN'T STOP THE VEHICLE BEFORE GOING THROUGH THE INTERSECTION. FORTUNATELY NO OTHER VEHICLES WERE IN THE INTERSECTION AND NO ACCIDENT OCCURRED. AFTER RETURN…
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MOMENTS AFTER LEAVING THE DRIVEWAY AT OUR HOME, APPROACHING AN INTERSECTION AT ABOUT 25 MPH, I APPLIED THE BRAKES ON MY 2002 GMC SIERRA, AND THE PEDAL WENT TO THE FLOOR. I COULDN'T STOP THE VEHICLE BEFORE GOING THROUGH THE INTERSECTION. FORTUNATELY NO OTHER VEHICLES WERE IN THE INTERSECTION AND NO ACCIDENT OCCURRED. AFTER RETURNING THE VEHICLE TO THE DRIVEWAY I DISCOVERED BRAKE FLUID UNDER THE TRUCK BED AND DRIPPING FROM THE FRAME.I COULD NOT SEE THE SOURCE OF THE LEAK AS IT WAS WELL HIDDEN EITHER IN OR ABOVE THE TRUCK FRAME. I HAD THE VEHICLE BROUGHT BY FLAT BED TRUCK TO A LOCAL AUTO REPAIR GARAGE. THE MECHANICS FOUND THE BRAKE LINES TO BE HEAVILY RUSTED AND ONE HAD RUSTED THROUGH AND FAILED, CAUSING THE EARLIER BRAKE FAILURE. BECAUSE THE BRAKE LINE RUSTING WAS SO HEAVY, ALL THE BRAKE LINES WERE REPLACED. ALSO,, THE TWO FRONT BRAKE CALIPERS WERE REPLACED BECAUSE OF HEAVY RUST. THE RUSTED BRAKE LINES ARE AVAILABLE. THE CONSEQUENCES OF THIS WAS A REPAIR BILL OF $1149.78, AND HAVING MY TRUCK IN THE SHOP FOR SEVERAL DAYS. LUCKILY, NOBODY WAS HURT. IF THIS HAD OCCURRED LATER IN THE DAY IN THE SAME LOCATION IT MAY NOT HAVE TURNED OUT THE SAME. THIS IS THE THIRD MAJOR BRAKE REPAIR DONE ON THIS TRUCK. I AM THE ORIGINAL OWNER. I HAVE HAD TO HAVE THE BRAKE PADS AND ROTORS REPLACED TWICE. BOTH TIMES I WAS TOLD THE ROTORS WERE SO BADLY RUSTED THEY NEEDED TO BE REPLACED. DURING THE FIRST SIX YEARS OF OWNING THE VEHICLE IT WAS KEPT IN A GARAGE. IT HAS ALWAYS BEEN WELL TAKEN CARE OF. WITH THIS REPAIR, I HAVE SPENT OVER $3000. TO KEEP BRAKES FUNCTIONING ON THIS TRUCK. *TR
NHTSA ODI #10350435
94,000 miles · Aug 2, 2010
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 15 MPH AND DEPRESSING THE BRAKES, THERE WAS A LOSS OF 80-90 PERCENT BRAKING POWER. THE ABS SYSTEM INDEPENDENTLY ENGAGED AND WOULD NOT DISENGAGE. THE VEHICLE WAS CAREFULLY DRIVEN HOME. THE ROTORS AND BRAKE PADS WERE REPLACED AND THE WHEEL…
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TL* THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 15 MPH AND DEPRESSING THE BRAKES, THERE WAS A LOSS OF 80-90 PERCENT BRAKING POWER. THE ABS SYSTEM INDEPENDENTLY ENGAGED AND WOULD NOT DISENGAGE. THE VEHICLE WAS CAREFULLY DRIVEN HOME. THE ROTORS AND BRAKE PADS WERE REPLACED AND THE WHEEL CYLINDERS WERE BLED BY THE CONTACT. IN ADDITION, THE CONTACT DISCONNECTED THE ABS FUSE AND THE FAILURE DID NOT RECUR. THE DEALER WAS NOT CONTACTED. THE FAILURE AND CURRENT MILEAGE WAS APPROXIMATELY 94,000.
NHTSA ODI #10346891
47,177 miles · Jul 25, 2010
Service Brakes, Hydraulic
BRAKE LINE FAILURE ON MY 2002 GMC SIERRA 1500 1/2 TON 4WD PICKUP. BRAKE LINE FAILED BECAUSE OF RUST. MY TRUCK HAS ONLY 47000 MILES ON IT AND WELL CARED FOR. WHEN IT HAPPENED I WAS TURNING INTO A PARKING LOT AND THE BRAKE PEDAL WENT TO THE FLOOR ALMOST HIT STREET SIGN. I HAD TO GET THE TRUCK TOWED. THE GARAGE HAD TO REPLACE ALL …
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BRAKE LINE FAILURE ON MY 2002 GMC SIERRA 1500 1/2 TON 4WD PICKUP. BRAKE LINE FAILED BECAUSE OF RUST. MY TRUCK HAS ONLY 47000 MILES ON IT AND WELL CARED FOR. WHEN IT HAPPENED I WAS TURNING INTO A PARKING LOT AND THE BRAKE PEDAL WENT TO THE FLOOR ALMOST HIT STREET SIGN. I HAD TO GET THE TRUCK TOWED. THE GARAGE HAD TO REPLACE ALL BRAKE LINES,FRONT HOSES AND CALIPERS BECAUSE OF RUST.THE TOTAL BILL CAME TO $1030 INCLUDING THE TOW. THE GARAGE TOLD ME THEY HAVE TO REPLACE THESE BRAKE LINE ON THESE EARLY 2000S GM TRUCK ALL THE TIME. THERE HAS TO BE A RECALL ON THESE TRUCK BECAUSE YOU HAVE NO WARNING WHEN THIS HAPPENS. VERY SCARY WHEN IT DOES. *TR
NHTSA ODI #10345149
66,425 miles · Jul 21, 2010
Service Brakes, Hydraulic
EVENTS LEADING UP TO FAILURE: NONE, ALL WAS NORMAL AND NO PROBLEMS WERE EXPERIENCED.. THE FAILURE: BRAKE LINE RUPTURED DUE TO RUSTING CAUSING LOSS OF ALL BRAKING ABILITY. VEHICLE ONLY 8 YEARS OLD. BARELY AVOIDED AN ACCIDENT BY STEERING AROUND THE VEHICLE IN FRONT OF ME. CORRECTIVE PROCEDURE: ALL BRAKE LINES REPLAC…
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EVENTS LEADING UP TO FAILURE: NONE, ALL WAS NORMAL AND NO PROBLEMS WERE EXPERIENCED.. THE FAILURE: BRAKE LINE RUPTURED DUE TO RUSTING CAUSING LOSS OF ALL BRAKING ABILITY. VEHICLE ONLY 8 YEARS OLD. BARELY AVOIDED AN ACCIDENT BY STEERING AROUND THE VEHICLE IN FRONT OF ME. CORRECTIVE PROCEDURE: ALL BRAKE LINES REPLACED BY A PROFESSIONAL MECHANIC. . OLD BRAKE LINES NOT AVAILABLE. I HAVE THE RECEIPT OF ALL WORK PERFORMED. *TR
NHTSA ODI #10344482
84,200 miles · Jun 24, 2010
Service Brakes, Hydraulic
2002 GMC SIERRA, 84,000 MILES. DRIVER'S SIDE REAR METAL BRAKE LINE BLEW WHEN LEAVING A GARAGE AND I HAD TO USE THE EMERGENCY BRAKE TO STOP. IF IT WOULD HAVE HAPPENED A MINUTE LATER, I WOULD HAVE BEEN GOING DOWN A STEEP HILL INTO RUSH HOUR TRAFFIC, POTENTIALLY HURTING OR KILLING OTHERS OR MYSELF. THIS HAPPENED WITHOUT WARNING.…
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2002 GMC SIERRA, 84,000 MILES. DRIVER'S SIDE REAR METAL BRAKE LINE BLEW WHEN LEAVING A GARAGE AND I HAD TO USE THE EMERGENCY BRAKE TO STOP. IF IT WOULD HAVE HAPPENED A MINUTE LATER, I WOULD HAVE BEEN GOING DOWN A STEEP HILL INTO RUSH HOUR TRAFFIC, POTENTIALLY HURTING OR KILLING OTHERS OR MYSELF. THIS HAPPENED WITHOUT WARNING. MECHANIC SAYS ALL LINES SHOULD BE REPLACED DUE TO EXCESSIVE RUST. I DO LIVE IN PA, BUT I HAVE NEVER HAD A BRAKE LINE RUPTURE DUE TO RUST IN A NOT SO OLD CAR OR TRUCK. REGARDLESS OF THE COST TO FIX, THIS IS UNACCEPTABLE AND COMPLETELY UNSAFE. THERE ARE MANY OTHERS THAT HAVE THE SAME PROBLEM, AND MANY MORE WHO ARE NOT EVEN AWARE OF THE TIME-BOMB THEY ARE DRIVING. *TR
NHTSA ODI #10339832
80,000 miles · May 21, 2010
Service Brakes, Hydraulic
BRAKE LINES RUSTED & FAILED. BRAKE PEDAL WENT TO FLOOR AND TRUCK COULD NOT STOP. FORTUNATELY IT OCCURRED IN A PARKING LOT & NO ONE WAS HURT. THIS WAS A 2002 GMC 1500 EXTENDED CAB PICK UP TRUCK WHICH WAS PURCHASED NEW IN 2003. IT TURNED OUT ALL BRAKES LINES ARE SEVERELY RUSTED AND NEEDED TO BE REPLACED. THIS TRUCK HAD 80,000 MILE…
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BRAKE LINES RUSTED & FAILED. BRAKE PEDAL WENT TO FLOOR AND TRUCK COULD NOT STOP. FORTUNATELY IT OCCURRED IN A PARKING LOT & NO ONE WAS HURT. THIS WAS A 2002 GMC 1500 EXTENDED CAB PICK UP TRUCK WHICH WAS PURCHASED NEW IN 2003. IT TURNED OUT ALL BRAKES LINES ARE SEVERELY RUSTED AND NEEDED TO BE REPLACED. THIS TRUCK HAD 80,000 MILES ON IT AND HAS BEEN WELL TAKEN CAR OF. ALL LINES WERE REPLACED AT CONSIDERABLE COST. THERE WAS NO WARNING BEFORE THE INCIDENT. IT COULD HAVE HAPPENED AT 60 MPH. I ALSO OWN A 2003 GMC YUKON WHICH NOW APPEARS TO HAVE THE SAME PROBLEM. I WENT ON LINE AND FOUND MANY OTHER ANGRY OWNERS WITH THE SAME PROBLEMS. I HAVE BEEN DRIVING FOR 40 YEARS AND NEVER HAD THIS HAPPEN TO ANY OTHER CAR I OWNED. SOMEONE COULD GET KILLED!! *TR
NHTSA ODI #10331661
81,000 miles · Apr 19, 2010
Service Brakes, Hydraulic
1. ANTI-LOCK BRAKES ACTIVATION AT LOW SPEEDS 3-5 MPH. 2. ALWAYS THE FIRST TIME APPLIED WHEN COLD AFTER THAT AT VARIOUS TIMES 3. THIS IS THE SAME CONDITIONS AS NHTSA 05V379000 OR GM 05068 WHICH STARTED IN 2005. THE TRUCK WAS LOOKED AT THEN WHEN THERE WAS NO PROBLEMS BUT WHEN THE PROBLEM IS HAPPENING NOW GM SAYS THAT IT IS ONLY…
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1. ANTI-LOCK BRAKES ACTIVATION AT LOW SPEEDS 3-5 MPH. 2. ALWAYS THE FIRST TIME APPLIED WHEN COLD AFTER THAT AT VARIOUS TIMES 3. THIS IS THE SAME CONDITIONS AS NHTSA 05V379000 OR GM 05068 WHICH STARTED IN 2005. THE TRUCK WAS LOOKED AT THEN WHEN THERE WAS NO PROBLEMS BUT WHEN THE PROBLEM IS HAPPENING NOW GM SAYS THAT IT IS ONLY A ONE TIME RECALL. THE DEALER LOOKED AT THE TRUCK AND SAID THE HUB WAS WORN AND NEEDED REPLACED FOR $500 PER SIDE. WHEN I QUESTIONED THE SERVICE REP IF THE BEARING WAS WORN HE SAID NO. I THEN ASKED WHAT WAS WORN SINCE THE HUB IS THE BEARING. HE SAID I DID NOT HAVE TO HAVE IT REPAIRED IF I DID NOT WANT TO. I EXPLAINED THAT I WANTED THE RECALL WORK DONE WHICH WAS CLEANING THE RUST FROM THE SENSOR. I ALSO STATED THAT THERE ARE MAGNETS ON THE HUB THAT PASS THE SENSOR CREATING AN ELECTRICAL IMPULSE SO IF THE BEARING WAS NOT WORN ARE THE MAGNETS WORN? HE SAID THE HUB WAS BAD AND NEEDED REPLACED. I DECLINED THE WORK. I COMPLAINED TO GM AND THEY SAID THAT I WAS TOLD IT WAS A BAD SENSOR AND DECLINED THE WORK OR FURTHER DIAGNOSIS. THAT WAS A LIE. I THEN DID THE RECALL PROCEDURE OF REMOVING THE SENSOR AND CLEANING THE RUST AWAY. THERE IS ALSO NO BEARING PLAY SO THE HUB IS NOT WORN. THE BRAKES NOW WORK FINE. SO A COUPLE OF THINGS HERE. IF THERE IS A SAFETY RECALL AND IT COMES BACK AS THIS DID SHOULD THEY HAVE DONE THIS WORK. SECOND THE SERVICE DEPARTMENT AT JOE BALL GMC IS RUNNING A SCAM AND MAKING MONEY ON PEOPLE THAT DO NOT KNOW BETTER. *TR
NHTSA ODI #10326514
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.