NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
53 reportsClear category filter31,000 miles · Apr 12, 2010
Service Brakes, Hydraulic
ON OR ABOUT NOVEMBER 12 THE BRAKES ON MY 2002 GMC SIERRA 1500 PICKUP TRUCK FAILED SUDDENLY WHEN APPROACHING A STOP SIGN AND I PASSED THROUGH THE INTERSECTION, BEING UNABLE TO BRING THE VEHICLE TO A HALT IN THE DISTANCE AVAILABLE. WHILE THE INTERSECTION WAS CLEAR, AND NO ACCIDENT RESULTED, MY VEHICLE WAS COMPLETELY DISABLED. A …
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ON OR ABOUT NOVEMBER 12 THE BRAKES ON MY 2002 GMC SIERRA 1500 PICKUP TRUCK FAILED SUDDENLY WHEN APPROACHING A STOP SIGN AND I PASSED THROUGH THE INTERSECTION, BEING UNABLE TO BRING THE VEHICLE TO A HALT IN THE DISTANCE AVAILABLE. WHILE THE INTERSECTION WAS CLEAR, AND NO ACCIDENT RESULTED, MY VEHICLE WAS COMPLETELY DISABLED. A LOCAL MECHANIC SAID THE BRAKELINE HAD FAILED - EVEN THOUGH THERE ARE LESS THAN 32,000 ON THE VEHICLE. HE SAID HE HAD SEEN SEVERAL FAILURES ON VEHICLES OF SIMILAR VINTAGE AND LIGHT SERVICE. REPAIRS COST OVER $900. GMC ASSUMED NO LIABILITY. *TR
NHTSA ODI #10325095
81,000 miles · Mar 13, 2010
Service Brakes, Hydraulic
1. BRAKES WERE FULLY OPERATIONAL AFTER THE INITIAL RECALL WAS COMPLETED (10/13/05). RECENTLY, JANUARY 2010, MY ANTI-LOCK BRAKE SYSTEM HAS TRIGGERED AT LOW SPEEDS UNDER 10 MPH CAUSING MY TRUCK TO NOT COME TO A COMPLETE STOP. THIS IS THE SAME PROBLEMS I WAS HAVING PRIOR TO THE INITIAL RECALL. RELEASING THE BRAKES AND REAPPLYI…
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1. BRAKES WERE FULLY OPERATIONAL AFTER THE INITIAL RECALL WAS COMPLETED (10/13/05). RECENTLY, JANUARY 2010, MY ANTI-LOCK BRAKE SYSTEM HAS TRIGGERED AT LOW SPEEDS UNDER 10 MPH CAUSING MY TRUCK TO NOT COME TO A COMPLETE STOP. THIS IS THE SAME PROBLEMS I WAS HAVING PRIOR TO THE INITIAL RECALL. RELEASING THE BRAKES AND REAPPLYING THE BRAKES HAVE WORKED TO STOP THE VEHICLE SO FAR. 2. THE FAILURE HAPPENS ABOUT 1 IN 5 STOPS DEPENDING ON THE SPEED OF THE VEHICLE. I HAVE NEARLY HIT SEVERAL CARS IN PARKING LOTS, BECAUSE OF THE SLOW SPEED DURING PARKING. 3. GM HAD A RECALL 4 YEARS AGO ON THE WHEEL SPEED SENSOR (05V379000) ALL THEY DID WAS CLEAN AND LUBRICATE THE UNIT. NOT ADEQUATE ENOUGH, SINCE I AM HAVING THE SAME PROBLEM OVER AGAIN. *TR
NHTSA ODI #10319441
40,000 miles · Feb 17, 2010
Service Brakes, Hydraulic
2002 GMC SIERRA PU ANTI LOCK BRAKES FAILED IN 2005. CLOSE ENCOUNTER WHEN BRAKES FAILED TO STOP VEHICLE. BRAKES WERE REPAIRED UNDER WARRANTY. BRAKE FAILURE AGAIN IN 2009 AND PAID OUT OF POCKET TO HAVE REPAIRED. SAME BRAKE FAILURE FOR THIRD TIME. 2010 ANTI-LOCK BRAKES CURRENTLY DISCONNECTED. *TR
NHTSA ODI #10311178
84,000 miles · Jan 26, 2010
Service Brakes, Hydraulic
BRAKE LINES RUSTED THROUGH OUT TRUCK, FAILED SAFETY INSPECTION DUE TO RUSTED LINES. *TR
NHTSA ODI #10302397
18,000 miles · Jan 23, 2010
Service Brakes, HydraulicWheels
2002 GMC SIERRA, CONCERNING ABS. AT LOW SPEEDS ( LESS THAN 5MPH) BRAKES RELEASE, WILL NOT HOLD..RECALL IN 2005, WAS FINE ,LASTED 2 YEARS, THEN SAME THING, VIRTUALLY NO BRAKING AT LOW SPEEDS, DEALER SAID IT COULD BE $400 OR $500 TO FIX, I DON'T THINK SO. I ASKED HIM TO PULL THE FUSE, REFUSED, FOUND LOCATION OF FUSE AND YANKED IT …
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2002 GMC SIERRA, CONCERNING ABS. AT LOW SPEEDS ( LESS THAN 5MPH) BRAKES RELEASE, WILL NOT HOLD..RECALL IN 2005, WAS FINE ,LASTED 2 YEARS, THEN SAME THING, VIRTUALLY NO BRAKING AT LOW SPEEDS, DEALER SAID IT COULD BE $400 OR $500 TO FIX, I DON'T THINK SO. I ASKED HIM TO PULL THE FUSE, REFUSED, FOUND LOCATION OF FUSE AND YANKED IT AND THE TRUCKS BRAKES WORK FINE. THIS IS A DANGEROUS SITUATION AND SHOULD BE FIXED PERMANENTLY BY GMC. *TR
NHTSA ODI #10302013
34,000 miles · Jan 22, 2010
Service Brakes, HydraulicSteeringWheels
TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH IN RAINY WEATHER CONDITIONS AND PRESSURE WAS APPLIED TO THE BRAKE PEDAL, FOLLOWED BY AN ACTIVATION OF THE ANTI-LOCK BRAKE SYSTEM. THE FAILURE OCCURRED AT EXTREMELY LOW SPEEDS. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE…
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TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH IN RAINY WEATHER CONDITIONS AND PRESSURE WAS APPLIED TO THE BRAKE PEDAL, FOLLOWED BY AN ACTIVATION OF THE ANTI-LOCK BRAKE SYSTEM. THE FAILURE OCCURRED AT EXTREMELY LOW SPEEDS. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE FAILURE WAS CONTRIBUTED TO SEVERE CORROSION IN THE ANTI-LOCK BRAKE SENSOR. THERE WAS A PRIOR RECALL REPAIR UNDER NHTSA 07E106000 (WHEELS:CAP/COVER/HUB). HOWEVER, THE REMEDY FAILED TO CORRECT THE SAFETY RELATED DEFECT. THE VEHICLE HAS NOT BEEN REPAIRED FOR THE MALFUNCTION. THE FAILURE MILEAGE WAS 34,000. THE STEERING SHAFT WAS REPLACED. UPDATED 02/18/10
NHTSA ODI #10301936
110,000 miles · Jan 11, 2009
Service Brakes, Hydraulic
BRAKE LINE FAILURE DO TO EXCESSIVE RUST. ALL BRAKE LINES HAD TO BE REPLACED AS THEY WE ALL RUSTED EXCESSIVELY. *TR
NHTSA ODI #10254644
48,000 miles · Dec 8, 2008
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 GMC 1500. THE CONTACT HEARD A LOUD GRINDING NOISE WHEN THE BRAKE PEDAL WAS DEPRESSED. HE NOTICED THAT THE FRONT BRAKES WERE RUSTED VERY BADLY. THE REAR BRAKES WERE RUSTED AS WELL, BUT NOT AS BADLY AS THE FRONT BRAKES. THE DEALER STATED THAT THERE WERE NO RECALLS; THEREFORE, THEY COULD NOT ASSUME LI…
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TL*THE CONTACT OWNS A 2002 GMC 1500. THE CONTACT HEARD A LOUD GRINDING NOISE WHEN THE BRAKE PEDAL WAS DEPRESSED. HE NOTICED THAT THE FRONT BRAKES WERE RUSTED VERY BADLY. THE REAR BRAKES WERE RUSTED AS WELL, BUT NOT AS BADLY AS THE FRONT BRAKES. THE DEALER STATED THAT THERE WERE NO RECALLS; THEREFORE, THEY COULD NOT ASSUME LIABILITY FOR THE FAILURE. THE FAILURE MILEAGE WAS 48,000 AND CURRENT MILEAGE WAS 50,800. UPDATED 01/07/09 *BF UPDATED 01/07/09. *JB
NHTSA ODI #10251079
50,100 miles · Aug 25, 2008
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT BEGAN EXPERIENCING FAILURES WITH THE VEHICLE WHILE DRIVING 20 MPH. HE TOOK THE VEHICLE TO THE DEALER AND WAS INFORMED THAT THERE WAS A LEAK COMING FROM THE BRAKE LINE, WHICH CAUSED DIFFICULTY WHEN BRAKING. THE DEALER ALSO STATED THAT THE FUEL LINE WAS RUSTED AND NEEDED T…
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TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. THE CONTACT BEGAN EXPERIENCING FAILURES WITH THE VEHICLE WHILE DRIVING 20 MPH. HE TOOK THE VEHICLE TO THE DEALER AND WAS INFORMED THAT THERE WAS A LEAK COMING FROM THE BRAKE LINE, WHICH CAUSED DIFFICULTY WHEN BRAKING. THE DEALER ALSO STATED THAT THE FUEL LINE WAS RUSTED AND NEEDED TO BE REPLACED. THROUGH RESEARCH, THE CONTACT FOUND NUMEROUS COMPLAINTS ON THIS VERY SAME FAILURE FOR HIR YEAR, MAKE, AND MODEL VEHICLE. HE BELIEVED IT WAS DUE TO A MANUFACTURER DEFECT. THE VEHICLE HAS BEEN REPAIRED; HOWEVER, THE CONTACT BELIEVES A RECALL SHOULD BE ISSUED. THE CURRENT AND FAILURE MILEAGES WERE 50,100. UPDATED 09/29/08. *LJ UPDATED 09/29/08. *JB
NHTSA ODI #10239563
52,500 miles · Jul 25, 2008
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING 5 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE VEHICLE WOULD THEN EXPERIENCE UNWANTED ABS ACTIVATION. THE CONTACT CALLED THE DEALER IN REFERENCE TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). A TECHNICIAN STATED TH…
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TL*THE CONTACT OWNS A 2002 GMC SIERRA 1500. WHILE DRIVING 5 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE VEHICLE WOULD THEN EXPERIENCE UNWANTED ABS ACTIVATION. THE CONTACT CALLED THE DEALER IN REFERENCE TO NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). A TECHNICIAN STATED THAT HIS VEHICLE WAS INCLUDED IN THE RECALL, BUT THEY WOULD ONLY ASSUME RESPONSIBILITY FOR REPAIRING THE RELUCTOR RING. THE CONTACT WOULD HAVE TO PAY FOR THE HUB ASSEMBLY REPAIR AT THE COST OF $800. THE VEHICLE HAS NOT BEEN REPAIRED. HE CALLED THE MANUFACTURER ON NUMEROUS OCCASIONS AND IS STILL WAITING FOR A RESPONSE. THE FAILURE AND CURRENT MILEAGES WERE 52,500.
NHTSA ODI #10235747
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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