NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
30 reportsClear category filter218,000 miles · Jul 24, 2016
Fuel/propulsion SystemService BrakesCrashInjury
I AM THE ORIGINAL OWNER OF A 1999 GMC SIERRA THAT JUST HAD BRAKE LINE FAILURE ON 7/14/16 ON THE INTERSTATE THAT CAUSED AN ACCCIDENT. I HAD COMPLETE LOSS OF BRAKES, PEDAL TO THE FLOOR. I USED LOW GEAR AND PARK BRAKE TO MINIMIZE DAMAGE BUT STILL MADE CONTACT. IT IS CURRENTLY AT PATRIOT BUICK GMC IN WILLIAMSBURG VA FOR REPAIR WHERE…
Read full complaint
I AM THE ORIGINAL OWNER OF A 1999 GMC SIERRA THAT JUST HAD BRAKE LINE FAILURE ON 7/14/16 ON THE INTERSTATE THAT CAUSED AN ACCCIDENT. I HAD COMPLETE LOSS OF BRAKES, PEDAL TO THE FLOOR. I USED LOW GEAR AND PARK BRAKE TO MINIMIZE DAMAGE BUT STILL MADE CONTACT. IT IS CURRENTLY AT PATRIOT BUICK GMC IN WILLIAMSBURG VA FOR REPAIR WHERE I BOUGHT IT NEW. I FEEL ME HAVING TO PAY $1000+ FOR THE BRAKE LINE REPAIR AND NOW A COURT DATE AND INSURANCE ISSUES THAT ARE NOT MY FAULT. WE NEED TO DISCUSS GMC MAKING SOME RESTITUTION AS THERE IS NO RUST ANYWHERE ELSE AND THIS TRUCK HAS ONLY BEEN IN VA. I HAVE OTHER GM CARS FROM THE 60'S, 70S AND 2000S THAT HAVE NO RUST ISSUE. FUEL LINE WAS LEAKING AS WELL AND SOME NEEDED REPLACMENT.GM SERVICE REQUEST 8-2250924255 I ALSO HAD THE PS REAR BRAKE ROTOR SHIELD COME OFF AND SCRAPE MOVING PARTS LAST YEAR. TURNED ITNTO DEALERSHIP AS A PROBLEM. THIS TRUCK WAS TSB'D YEARS AGO FOR LINE INSPECTION
NHTSA ODI #10888028
210,000 miles · Jul 14, 2016
Fuel/propulsion SystemService Brakes
BRAKES COMPLETELY FAILED,FOOTPEDAL WENT DOWN FLOOR. WHILE DRIVING IN RESIDENTIAL AREA.. BRAKE FLUID FOUND LEAKING.HAD TOWED TRUCK ,BRAKE LINES RUSTED THRU AND HAD 4 COMPLETE LINES REPLACED FOR THE SECOND TIME ..I HAVE OWNED TRUCK SINCE 1999. LAST BRAKE LINE REPLACED IN 2015. THE OTHER ITEM WAS FUEL PUMP FAILED ON THE WAY TO WORK…
Read full complaint
BRAKES COMPLETELY FAILED,FOOTPEDAL WENT DOWN FLOOR. WHILE DRIVING IN RESIDENTIAL AREA.. BRAKE FLUID FOUND LEAKING.HAD TOWED TRUCK ,BRAKE LINES RUSTED THRU AND HAD 4 COMPLETE LINES REPLACED FOR THE SECOND TIME ..I HAVE OWNED TRUCK SINCE 1999. LAST BRAKE LINE REPLACED IN 2015. THE OTHER ITEM WAS FUEL PUMP FAILED ON THE WAY TO WORK AND TRUCK WOULD NOT START.HAD TO HAVE VEHICLE TOWED AT MIDNIGHT AND FUEL PUMP REPLACED.
NHTSA ODI #10884768
Mileage unknown · Jun 13, 2016
Service BrakesUnknown Or Other
I HAVE 1999 GMC TRUCK FRAME RUSTED OUT. ONLY HAS 90,000 MILE'S I BELIVE GMC SHOULD HAVE TO RECALL THEM.WHY DID TOYOTA HAVE TO RECALL AND GMC IS GETTING AWAY WITH THIS.SOMETHING SHOULD BE DONE NOW. JAY
NHTSA ODI #10873869
120,000 miles · Feb 4, 2015
Service Brakes
SUBURBAN IS EXTREMELY DIFFICULT TO STOP OR WILL NOT STOP AT STOP SIGNS. PEDAL GOES TO THE FLOOR FOR EMERGENCY STOPS ON HIGHWAY AND GOING DOWN HILLS. BRAKE PEDAL IS VERY SOFT. ABS SYSTEM ACTIVATES AT SLOW SPEEDS AND/OR MAY PULL VEHICLE VERY HARD TO THE LEFT. NHTSA RECALL ISSUED FOR THIS PROBLEM ONLY IN CERTAIN NORTHERN STATES BU…
Read full complaint
SUBURBAN IS EXTREMELY DIFFICULT TO STOP OR WILL NOT STOP AT STOP SIGNS. PEDAL GOES TO THE FLOOR FOR EMERGENCY STOPS ON HIGHWAY AND GOING DOWN HILLS. BRAKE PEDAL IS VERY SOFT. ABS SYSTEM ACTIVATES AT SLOW SPEEDS AND/OR MAY PULL VEHICLE VERY HARD TO THE LEFT. NHTSA RECALL ISSUED FOR THIS PROBLEM ONLY IN CERTAIN NORTHERN STATES BUT NOT IN WASHINGTON STATE WHERE WE HAVE HIGH CORROSION FROM NATURAL OCEAN AIR AND EXTREME WINTER MOUNTAIN DRIVING WITH DEICERS. THOUGH BRAKES HAVE BEEN REPEATEDLY SERVICED SINCE NEW THIS SAFETY PROBLEM PERSISTS AND IS GETTING WORSE. *TR
NHTSA ODI #10681297
154,892 miles · Jan 18, 2015
Service Brakes
WHILE DRIVING ON PUBLIC 4 LANE HIGHWAY AND COMING TO A YELLOW LIGHT I APPLIED THE BRAKE PEDAL AND THE PEDAL INSTANTLY WENT TO THE FLOOR. I TRIED TO PUMP THE PEDAL IN A PANIC AND STILL HAD NO EFFECT ON STOPPING THE TRUCK. I DOWNSHIFTED IN TO 1ST GEAR MANUALLY TO USE ENGINE BRAKING AND SLAMMED MY EMERGENCY TO THE FLOOR. THE TRUCK …
Read full complaint
WHILE DRIVING ON PUBLIC 4 LANE HIGHWAY AND COMING TO A YELLOW LIGHT I APPLIED THE BRAKE PEDAL AND THE PEDAL INSTANTLY WENT TO THE FLOOR. I TRIED TO PUMP THE PEDAL IN A PANIC AND STILL HAD NO EFFECT ON STOPPING THE TRUCK. I DOWNSHIFTED IN TO 1ST GEAR MANUALLY TO USE ENGINE BRAKING AND SLAMMED MY EMERGENCY TO THE FLOOR. THE TRUCK WAS UNABLE TO COMPLETE THE STOP IN WHICH IN HAD MORE THAN 300 FT TO DO SO AND I PRECEDED THROUGH WHAT HAD BECOME A RED LIGHT. THIS INCIDENT HAPPENED VERY LATE AT NIGHT SO THANKFULLY THERE WERE NO OTHER VEHICLE GOING THROUGH THE INTERSECTION. I HAD A FRIEND ESCORT ME THE MILE LEFT TO MY HOUSE VIA HIS TRUCK AND TOW STRAP AND MY EMERGENCY BRAKE AS MY ONLY BRAKE NOT TO HIT THE BACK OF HIS TRUCK. NOW UPON VISUAL INSPECTION OF ALL MY BRAKE AND FUEL LINES THEY ARE COMPLETELY RUSTED AT MULTIPLE SPOTS THROUGHOUT THE FRAME CHANNEL AND REAR AXLE AREA. THE BURST LOCATION HAPPENED JUST AT THE BACK OR DRIVERS DOOR EDGE TO THE FRONT OF THE L/R WHEEL. *TR
NHTSA ODI #10676298
125,100 miles · Dec 23, 2014
Service Brakes
7 O' CLOCK IN THE MORNING HEADING TO WORK MAKING A LEFT TURN INTO PARKING LOT APPLY THE BRAKES, PEDAL WANT TO THE FLOOR, AVOID HITTING THE CAR IN FRONT OF ME, JUMPING THE CURB CAME TO A STOP, CHECKED UNDERNEATH, OIL LEAKING. CALL FOR A TOW TRUCK. . MECHANIC CHECKED THE BRAKES LINES ALL NEED TO BE REPLACE. *TR
NHTSA ODI #10667853
150,000 miles · Oct 27, 2014
Service BrakesSuspension
COMING TO A STOP SIGN I APPLIED THE BRAKES AND THEY COMPLETELY FAILED WITHOUT WARNING; NO LIGHTS OR INDICATION FAILURE WAS IMMINENT. THE PEDAL WENT TO THE FLOOR WITH NO RESISTANCE. MANAGED TO TURN ONTO A DIRT SHOULDER AND DOWNSHIFT TO STOP. INSPECTION REVEALED RUSTED THROUGH REAR BRAKE LINE. ALTHOUGH THE DASH BRAKE WARNING LIGH…
Read full complaint
COMING TO A STOP SIGN I APPLIED THE BRAKES AND THEY COMPLETELY FAILED WITHOUT WARNING; NO LIGHTS OR INDICATION FAILURE WAS IMMINENT. THE PEDAL WENT TO THE FLOOR WITH NO RESISTANCE. MANAGED TO TURN ONTO A DIRT SHOULDER AND DOWNSHIFT TO STOP. INSPECTION REVEALED RUSTED THROUGH REAR BRAKE LINE. ALTHOUGH THE DASH BRAKE WARNING LIGHT COMES ON WHILE STARTING THE TRUCK, IT GOES OFF AND GIVES NO INDICATION THE BRAKE FLUID IS LOW. WHILE REPAIRING THE BRAKE LINES IT WAS NOTICED THE FRAME OF THE TRUCK IS EXTREMELY RUSTY AND FLAKING. AFTER WIRE-BRUSHING BY HAND,THE FRAME IS SHOWING CRACKS ON BOTH SIDES, UNDER THE CAB, NEAR THE REAR, RIGHT ABOUT WHERE A CROSSMEMBER IS ATTACHED. THIS VEHICLE IS NO LONGER SAFE TO DRIVE. I AM NOT IMPRESSED WITH GM'S CLAIM THAT THIS WAS A LIGHTER, STRONGER FRAME ON THIS TRUCK. WE HAVE 2 OLDER TRUCKS WITH NOWHERE NEAR THIS MUCH RUST AND NEITHER HAVE CRACKED. THE DESIGN ALLOWS TOO MUCH CRUD TO ACCUMULATE INSIDE THE LIP OF THE FRAME WHERE IT IS ALMOST IMPOSSIBLE TO WASH OUT. *TR
NHTSA ODI #10650532
60,000 miles · Jun 9, 2014
Service BrakesService Brakes, Hydraulic
TL* THE CONTACT OWNS A 1999 GMC SIERRA 1500. WHILE DRIVING AT AN UNKNOWN SPEED, THE BRAKES FAILED AS THE BRAKE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO A MECHANIC, WHO STATED THAT THE BRAKE LINES FAILED AND WERE RUSTED. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 60…
Read full complaint
TL* THE CONTACT OWNS A 1999 GMC SIERRA 1500. WHILE DRIVING AT AN UNKNOWN SPEED, THE BRAKES FAILED AS THE BRAKE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO A MECHANIC, WHO STATED THAT THE BRAKE LINES FAILED AND WERE RUSTED. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 60,000. UPDATED 09/15/14*LJ THE CONSUMER STATED THAT 2 DAMAGED LINESWITH UNION WERE REPAIRED. ALL LINES NEEDED TO BE REPAIRED. UPDATED 1/15/2014 *JS
NHTSA ODI #10597026
114,191 miles · May 16, 2014
Service Brakes
WHILE STARTING TO DRIVE AWAY, APPLIED BRAKES AND COULD NOT STOP. NO WARNING ABLE TO STOP VEHICLE AND HAVE TOWED TO REPAIR TO A LOCAL GM DEALER REPAIR FACILITY REPAIRED SECTION OF RUSTED OUT BRAKE LINE. SECOND INCIDENT OCCURRED ON AUGUST 2010 TRAVELING APPROXIMATELY 35 MPH. APPLYING BRAKES FOR A TURN NO BRAKES NO WARNING, W…
Read full complaint
WHILE STARTING TO DRIVE AWAY, APPLIED BRAKES AND COULD NOT STOP. NO WARNING ABLE TO STOP VEHICLE AND HAVE TOWED TO REPAIR TO A LOCAL GM DEALER REPAIR FACILITY REPAIRED SECTION OF RUSTED OUT BRAKE LINE. SECOND INCIDENT OCCURRED ON AUGUST 2010 TRAVELING APPROXIMATELY 35 MPH. APPLYING BRAKES FOR A TURN NO BRAKES NO WARNING, WAS ABLE TO AVOID REAR END COLLISION BY GOING STRAIGHT AND USING EMERGENCY BRAKE. VEHICLE WAS TOWED TO LOCAL REPAIR CENTER AND HAD TO REPLACE 3 FT OF BRAKE LINE AND AGAIN WAS A RUSTED OUT SECTION OF BREAK LINE I AM SENDING INFORMATION BECAUSE OF THE REPORTS THAT THIS HAS BEEN A ONGOING PROBLEM FOR GM TRUCKS. *TR
NHTSA ODI #10588994
1,490,954 miles · Jan 25, 2014
Service Brakes
WHILE DRIVING ON INTERSTATE 295 I NOTICED THE BRAKE LIGHT COME ON SO I CHECKED THE EMERGENCY BRAKE TO MAKE SURE IT WASN'T PUSHED IN I PULLED OVER AT THE NEXT REST STOP I LOOKED OVER TRUCK ALL SEEMED OK AFTER RESTARTING LIGHT WAS OFF THEN CAME ON WHILE DRIVING AGAIN AS I GOT TO MY EXIT PEDAL WENT TO THE FLOOR SCARY AS HELL BUT …
Read full complaint
WHILE DRIVING ON INTERSTATE 295 I NOTICED THE BRAKE LIGHT COME ON SO I CHECKED THE EMERGENCY BRAKE TO MAKE SURE IT WASN'T PUSHED IN I PULLED OVER AT THE NEXT REST STOP I LOOKED OVER TRUCK ALL SEEMED OK AFTER RESTARTING LIGHT WAS OFF THEN CAME ON WHILE DRIVING AGAIN AS I GOT TO MY EXIT PEDAL WENT TO THE FLOOR SCARY AS HELL BUT THE TRUCK DID STOP AS I STEPPED ALL THE WAY DOWN . I PROCEEDED HOME CHECKED BRAKE FLUID NONE AT ALL I ADDED SOME AND COULD SEE AFTER I STARTED AND PUMPED BRAKES THE FLUID WAS SPURTING OUT A LINE ONTO UNDER CARRIAGE I TOOK TO MY TECH HE SAID ITS A KNOWN PROBLEM WITH CHEVY GMC AND WOULD COST CLOSE TO $1500.00 RIGHT NOW IM UNEMPLOYED AND CANT AFFORD TO HAVE IT FIXED PLEASE HELP, HELP, HELP! *TR
NHTSA ODI #10561454
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