NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
184 reportsClear category filter242,000 miles · Feb 17, 2016
Service Brakes
I PURCHASED THE TRUCK FROM THE DEALER, WITH 230,000 MILES ON SHORTLY AFTER PURCHASE AS I BRAKED TO STOP THE PEDDLE WOULD STIFFEN AND PURR... AND THE VEHICLE WOULD NOT STOP, RUNNING INTERSECTIONS AND PARKING SPOTS. CAUSING NEAR ACCIDENTS. II LEARNED THIS WAS RELATED TO BRAKE ANTILOCK SYSTEM. DEALER SAID THEY DONE THE RECALL PROCE…
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I PURCHASED THE TRUCK FROM THE DEALER, WITH 230,000 MILES ON SHORTLY AFTER PURCHASE AS I BRAKED TO STOP THE PEDDLE WOULD STIFFEN AND PURR... AND THE VEHICLE WOULD NOT STOP, RUNNING INTERSECTIONS AND PARKING SPOTS. CAUSING NEAR ACCIDENTS. II LEARNED THIS WAS RELATED TO BRAKE ANTILOCK SYSTEM. DEALER SAID THEY DONE THE RECALL PROCEDURE TO CLEAN SENSORS AND AVOIDED ANY FURTHER CONCERNE EXPRESSED. I CHECKED WITH OTHER DEALERS WHO HAD THE SAME DENIAL REACTION, THE INITIAL DEALER HAD DONE CHECKS TO ALL CHASIS AND COMPONANT CHECKS, I NOTICED A MILD GROWL WHEN IN FOUR WHEEL DRIVE BUT DROVE WELL OTHERWISE. I INSPECTED THE WHEEL SENSORS AND THEY WERE CLEAN I LEARNED THE RELUCTOR RING WHICH TRIGGERS THE SENSORS ARE WITHIN THE FRONT WHEEL BEARINGS I HAD ONE OIL SERVICE DONE BY ANOTHER GARAGE WHO DID A 21 POINT CHECK BUT NEGLECTED TO TELL ME OF THE APPARENT WEAR. AFTER ABOUT FIFTEEN MONTHS THE LEFT FRONT WHEEL BEARING BEGAN TO FAIL WHILE DRIVING CAUSING A EXTREME GROWL, I THEN HAD IT CHECKED BY A SERVICE GARAGE WHO CLEARLY IDENIFIED THE EVIDENT WEAR ON BOTH FRONT WHEEL BEARINGS, I HAD THE BEARINGS BOTH CHANGED ALONG WITH A LOWER BALL JOINT ALONG WITH BOTH FRONT AXLE SHAFTS, DUE TO MILD LEAKING BOOTS. THIS THEM STOPPED THE HARD PEDDLE AND BRAKE FAILURE WHEN STOPPING. THE DEALER KNEW OF THE WEAR AND IGNORED THE DANGER. THE DEALER SHOULD NOT BE ALLOWED TO SELL A VEHICLE IN THIS CONDITION . THE TRUCK DOES DRIVE WELL NOW. BUT I STILL HAVE A VERY MILD GROWL IN THE LEFT FRONT,BUT WITH THE AXLES NEW THE NOISE IS COMING FROM THE DRIVE CASE, ONLY WHEN IN FOUR WHEEL DRIVE. ( WHILE THE BRAKE PROBLEM EXISTED I ADJUSTED MY DRIVING PRACTICE AND LIMITED MY USE OF VEHICLE.)
NHTSA ODI #10836573
130,000 miles · Feb 16, 2016
Fuel/propulsion SystemService Brakes
EXCESSIVE CORROSION ON BRAKE AND FUEL LINES. HAD A METAL LINE BLOW OUT NEAR REAR DRIVER SIDE WHEEL CAUSING DRIVER TO HAVE TO USE TRANSMISSION AND HOLDING PARKING BRAKE RELEASE HANDLE WHILE USING E-BRAKE WHILE STEERING WITH ONE HAND. UPON SPLICING IN A SECTION OF REPLACEMENT TUBING, I NOTICED THE FUEL RETURN LINE FROM THE ENGINE …
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EXCESSIVE CORROSION ON BRAKE AND FUEL LINES. HAD A METAL LINE BLOW OUT NEAR REAR DRIVER SIDE WHEEL CAUSING DRIVER TO HAVE TO USE TRANSMISSION AND HOLDING PARKING BRAKE RELEASE HANDLE WHILE USING E-BRAKE WHILE STEERING WITH ONE HAND. UPON SPLICING IN A SECTION OF REPLACEMENT TUBING, I NOTICED THE FUEL RETURN LINE FROM THE ENGINE TO THE TANK IS CORRODED SEVERELY TOO. I HAD A SECTION OF FUEL LINE FALL APART UPON REPLACING A FUEL FILTER AND SPLICED IN A RUBBER FUEL HOSE WITH CLAMPS TO GET A FUEL FILTER REPLACED. WHEN THE FUEL LINES RUPTURE, THERE IS A CHANCE OF FIRE FROM THE EXHAUST OR HOT BRAKE DRUMS. WAS ADVISED BY MECHANIC THAT I NEED TO SELL TRUCK AS IT HAS 18-24 MONTHS LEFT WITHOUT PROPER AND EXPENSIVE REPAIRS BEING MADE. RARELY GETS UNDERBODY WASH AS A QUALITY WASH IS FAR AWAY AND WAS ADVISED THAT THE RUST IS PROBABLY HOLDING IT TOGETHER AND ADVISED NOT TO KNOCK OFF ANY MORE RUST AS IT WOULD ACCELERATE FURTHER CORROSION. WAS ADVISED A WASTE OF TIME TO USE RUST REFORMER OR UNDERCOATING. I NOTICED THIS STATIONARY AS THE VEVICLE WAS MAKING SQUEAKING SOUNDS FROM THE REAR AXLE HUB ON DRIVER SIDE (SAME LINE THAT BLEW) AND FIGURED HANGING CALIPER SO I DID A FULL BRAKE PEDAL PRESS AND FELT THE PEDAL GET SPONGY AND DROP ANOTHER 1" TOWARD FLOOR. I OPENED DOOR, HUNG OUT LOOKING UNDER TRUCK AND PRESSED PEDAL AGAIN TO SEE FLUID POURING FROM REAR AXLE AREA. DROVE IT 30 MILES WITH NO SERVICE BRAKES TO GET TO THE GARAGE USING ONLY E-BRAKE AND 3,2,1 AND NEUTRAL RANGE OF TRANSMISSION TO BE ABLE TO STOP IF NEEDED. ALSO WAS ADVISED ABOUT FUEL TANK STRAP AND THAT I WOULD NEED A FLAME CUTTER TO CHANGE THE FUEL PUMP AS TRUCK BED BOLTS LOOKED HORRIBLE OR WOULD NEED TO CUT TANK STRAPS DEPENDING ON HOW MUCH FUEL IS IN THE TANK. THE "ANNUAL UNDERBODY WASH" MOST OWNERS MANUALS RECOMMEND IS INSUFFICIENT TO PREVENT THIS PROBLEM.
NHTSA ODI #10836321
147,000 miles · Feb 3, 2016
Service Brakes
CORROSION AND FAILURE OF METAL BRAKE LINE DIRECTLY BELOW LEFT FRONT DOOR. VERY POOR DESIGN AS TUBES ARE BEHIND A DOUBLE LOOP OF CHASSIS WIRING CAUSING BUILDUP OF DIRT AND MOISTURE RESULTING IN PREMATURE FAILURE. FAILED WHEN BACKING OUT OF THE DRIVEWAY AND THANK GOD I WAS NOT ON THE ROAD
NHTSA ODI #10824094
150,000 miles · Jan 31, 2016
Service Brakes
WHILE APPROACHING A STOP SIGN I APPLIED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. NO WARNING OF ANY KIND. LUCKY FOR ME NO TRAFFIC WAS COMING.
NHTSA ODI #10823320
121,000 miles · Jan 27, 2016
Service Brakes
BRAKE LINES RUSTD OUT. MAKING MY TRUCK LOOSE BRAKE FLUID AND HAD TO BE REPLACE,. SERIOUS PROBLEM, LUCKY I DID NO HAVE AN ACCIDENT. RUST ETC, ALL OVER THE REST OF THE BRAKE SYSTEM, VERY COSTLY, $$$$$, I WAS DRIVING DOWN A STREET SLOWLY.
NHTSA ODI #10822521
84,000 miles · Jan 7, 2016
Service BrakesStructure
CHEVY RUST. BRAKE LINES RUSTED OUT COMPLETELY AND FAILED - HAPPEN AT SLOW SPEED NO ONE INJURED. SHACKLED BROKE OFF AND HIT BOTTOM OF BED WITHOUT TOWING. FRAME IS RUSTED OUT. NEIGHBOR HAS SIMILAR VEHICLE WITH SAME PROBLEMS (PUT JACK ON FRAME AND IT WENT THROUGH THE FRAME.) MANY COMPLAINTS ONLINE ABOUT THESE VERY ISSUES.
NHTSA ODI #10818745
132,000 miles · Dec 15, 2015
Service Brakes
BRAKES PULSATING AT LOW SPEED TRYING TO STOP ALMOST HIT ANOTHER CAR IN FRONT OF ME.
NHTSA ODI #10810524
113,716 miles · Nov 16, 2015
Service Brakes
RECALL 05V379000 RELATED TO LOW SPEED ACTIVATION OF THE ABS BRAKING SYSTEM WHILE MY VEHICLE IS OPERATED WAS PERFORMED IN 2006 ON MY VEHICLE. THIS HAS NOT FIXED THE ISSUE AS LOW SPEED ACTIVATION OF THE ABS SYSTEM IS OCCURING NOW. I HAVE CONTACTED CHEVROLET CORPORATION (GMC) AND ASKED TO HAVE THE RECALL PROTOCOL PERFORMED AGAIN.…
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RECALL 05V379000 RELATED TO LOW SPEED ACTIVATION OF THE ABS BRAKING SYSTEM WHILE MY VEHICLE IS OPERATED WAS PERFORMED IN 2006 ON MY VEHICLE. THIS HAS NOT FIXED THE ISSUE AS LOW SPEED ACTIVATION OF THE ABS SYSTEM IS OCCURING NOW. I HAVE CONTACTED CHEVROLET CORPORATION (GMC) AND ASKED TO HAVE THE RECALL PROTOCOL PERFORMED AGAIN. THEY REFUSE. I SPOKE WITH KIMBERELY FROM NHTSA AND SHE ADVISED ME TO FILE A COMPLAINT IF GMC REFUSED TO TAKE RESPONSIBILITY FOR THIS DEFECT. PHONE CONFIRMATION # 868194
NHTSA ODI #10790675
90,000 miles · Nov 4, 2015
Electronic Stability Control (esc)EngineService BrakesCrashFireInjury
2002 CHEV. 1500 SILV. PURCH. 2001 TX.ABS BRAKE SYSTEM FAILED ON ST UNDER 5MPH,BROUGHT TO MECHANIC.,BRAKE PADS, AND TIRES.SOUTHEAST TEXAS HOT AND VERY HUMID, LAWS OF NATURE, AIRBAGS ARE NO GOOD IN EITHER VEHICLE.(SHE HAS A SON AGE 14, AND 3YR OLD GRL).AXIL IS RUSTY WORRIED THAT IT MIGHT BREAK.GOD IS WITH ALL OF US ,HIS INTENTION…
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2002 CHEV. 1500 SILV. PURCH. 2001 TX.ABS BRAKE SYSTEM FAILED ON ST UNDER 5MPH,BROUGHT TO MECHANIC.,BRAKE PADS, AND TIRES.SOUTHEAST TEXAS HOT AND VERY HUMID, LAWS OF NATURE, AIRBAGS ARE NO GOOD IN EITHER VEHICLE.(SHE HAS A SON AGE 14, AND 3YR OLD GRL).AXIL IS RUSTY WORRIED THAT IT MIGHT BREAK.GOD IS WITH ALL OF US ,HIS INTENTIONS ARE ALWAYS GOOD. GOD PROTECTED HER AND HER CHIILDREN IN THIS VEHICLE THUS SO FAR..\& WE DESIRE TO PROTECT THIER CHILDREN AND YOU KNOW THIS, BUT SOMETIMES PEOPLE GO THROUGH UNFORTUNATE TRAGEDYS SUCH AS DIVORCE, HEALTH, ETC.A SINGLE, NO MONEY THAT WANTS SAFETY FOR THER CHILDREN AND WORK .CHEVY SILVERADO BROUGHT NEW PAID OFF LESS THAN 3YR. HER 1994 FORD MUSTANG (WAS INSURED FARMERS)PURCHASED IN 1997.ABS BRAKES FAILED, TRANSMISION PROB.& ENGINE REPLACED. TRUCK( GEICO INS) UNDRIVABLE BECAUSE OFELECTRICAL SYSTEM AND ABS,RUSTY BRAKE LINES, RUSTY AXILS,LEAK IN THE LINE,NO HORN, DOORS DO NOT SEAL WATER LEAK, PAINT FADED,EVEN TOOLS CAN NOT FIX THESE PROBLEMS.SHE HAS A COLLEGE DEGREE AND LIVING IN A HOME SHE BOUGHT (BEFORE THE TRAGEDY )WHEN SHE WORKED.(HELPING OTHERS AT HERMAN MEMORIAL BAPTIST HOSPITAL BEAUMONT BEHAVIOR CENTER OF SOUTHEAST TEXAS, MEHAFFY WEBER LAW FIRM, CHRISTUS ST.MARYS HOSPITAL OUTPATIENT CENTER, PORT ARTHUR ANIMAL CLINIC,PORT ARTHUR NEWS PAPER, PNG ISD AS A SUB-TEACHER,SPINDLETOP MHMR AND FAMILY SERVICES WOMANS AND CHILDRENS SHELTER. SHE HAS VOLUNTEERED AT 3 RIVERS COUNCIL FOR BOYSCOUTS OF AMERICA AND EVEN GRADULATED WITH THE WO HE LO MEDALION IN BOYS AND GIRLS CAMPFIRE SCOUTS WHEN SHE WAS 15.)SHE HAS REACHED OUT FOR HELP, AND NO ONE LISTENS....LIKE SHE DOES. EVEN THOUGH SHE IS DOWN FOR THE SEASON, SHE CONTINUES TO HELPS OTHERS BY SHOWING OTHERS THAT GOD IS GOOD HE IS REAL & ALIVE.WE R ALL GODS CHILDREN.PLEASE NHTSA, WHAT CAN BE DONE? -K
NHTSA ODI #10788378
125,000 miles · Oct 21, 2015
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD WITHOUT WARNING. THE FAILURE RECURRED THREE TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS NOT PROVIDED. THE APPRO…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD WITHOUT WARNING. THE FAILURE RECURRED THREE TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS NOT PROVIDED. THE APPROXIMATE FAILURE MILEAGE WAS 125,000. UPDATED 02/12/16*LJ INVALID VIN NUMBER 4/23/18*JB *CN
NHTSA ODI #10784948
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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