NHTSA owner reports · September 18, 2026 snapshot.
Parking Brake complaints
29 reportsClear category filterMileage unknown · Nov 8, 2007
EquipmentFuel System, OtherParking Brake
PARKING BRAKE AND FUEL GAGE. I RECENTLY MOVED OVERSEAS WITH AF AND HAD TO HAVE MY VEHICLE INSPECTED FOR EUROPEAN STANDARDS. MY PARKING BREAK DID NOT WORK AT ALL. I FOUND THIS HARD TO BELIEVE SINCE I HAVE NEVER USED IT. I WAS MANDATED BY EUROPEAN LAW TO GET FIXED IN ORDER TO DRIVE IT AND PAY A $30 FOR EACH MONTH UNTIL I GOT…
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PARKING BRAKE AND FUEL GAGE. I RECENTLY MOVED OVERSEAS WITH AF AND HAD TO HAVE MY VEHICLE INSPECTED FOR EUROPEAN STANDARDS. MY PARKING BREAK DID NOT WORK AT ALL. I FOUND THIS HARD TO BELIEVE SINCE I HAVE NEVER USED IT. I WAS MANDATED BY EUROPEAN LAW TO GET FIXED IN ORDER TO DRIVE IT AND PAY A $30 FOR EACH MONTH UNTIL I GOT IT FIXED. MY FUEL GAGE DOESN'T MAINTAIN HOW MUCH FUEL I HAVE IN MY GAS TANK. WHEN I HAVE A FULL OR EMPTY TANK THE GAUGE JUST RANDOMLY BOUCESS AROUND WITH THE UNKNOWN CORRECT AMOUNT. I AM CURRENTLY SETTING THE MILEAGE UNTIL I CAN FIND SOMEONE TO FIX IT AND THE PARTS I NEED. *TR
NHTSA ODI #10208231
50,000 miles · Jul 17, 2007
Parking Brake
GRADUAL FAILURE OF PARKING BRAKE. PARKING BRAKE FAILED TO HOLD VEHICLE IN PLACE WHILE JACKING OR IN GEAR WITH AUTOMATIC TRANSMISSION. PROVIDED NO EMERGENCY BRAKING. NO ACTION TAKEN TO CORRECT. A RECALL WAS PRESENT FOR MANUAL TRANSMISSION MODELS ONLY EVEN THOUGH THE BRAKES WERE IDENTICAL. *AK
NHTSA ODI #10196637
52,000 miles · Mar 15, 2007
Parking BrakeService Brakes, Hydraulic
TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT HEARD A SCRAPPING NOISE IN THE VEHICLE. RECALL CAMPAIGN# 05V161000 WAS RELATED TO THE PARKING BRAKE FAILURE. THE FAILURE MILEAGE WAS 52,000. IN OCTOBER 2006 THE DEALER STATED THAT THE RECALL WAS NOT RELATED TO THIS VEHICLE DUE TO THE BRAKE PADS AND ROTORS…
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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT HEARD A SCRAPPING NOISE IN THE VEHICLE. RECALL CAMPAIGN# 05V161000 WAS RELATED TO THE PARKING BRAKE FAILURE. THE FAILURE MILEAGE WAS 52,000. IN OCTOBER 2006 THE DEALER STATED THAT THE RECALL WAS NOT RELATED TO THIS VEHICLE DUE TO THE BRAKE PADS AND ROTORS BEING WORN. *AK THE CURRENT MILEAGE WAS 61610. UPDATE *4/23/07 **TR
NHTSA ODI #10185183
40,000 miles · Dec 28, 2006
Parking Brake
PARKING BRAKE FAILURE. GM PUT OUT RECALL FOR MANUAL TRANSMISSION VEHICLES BUT NOT AUTO TRANS. TRUCK WOULD NOT PASS STATE INSPECTION. TOOK TO DEALER AND PAID TO HAVE IT FIXED. *JB
NHTSA ODI #10177198
42,215 miles · Dec 13, 2006
Parking Brake
DT*: THE CONTACT STATED WHILE DRIVING VARIOUS SPEEDS, A GRINDING NOISE WAS HEARD. THE VEHICLE WAS DRIVEN TO AN INDEPENDENT REPAIR SHOP, WHO DETERMINED THE PARKING BRAKE WAS METAL TO METAL. THE ROTORS WERE SHAVED AND THE PADS WERE REPLACED. THE DEALER WAS NOT CONTACTED. UPDATED 1/19/2007 - THE EMERGENCY BRAKE PADS WERE COMP…
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DT*: THE CONTACT STATED WHILE DRIVING VARIOUS SPEEDS, A GRINDING NOISE WAS HEARD. THE VEHICLE WAS DRIVEN TO AN INDEPENDENT REPAIR SHOP, WHO DETERMINED THE PARKING BRAKE WAS METAL TO METAL. THE ROTORS WERE SHAVED AND THE PADS WERE REPLACED. THE DEALER WAS NOT CONTACTED. UPDATED 1/19/2007 - THE EMERGENCY BRAKE PADS WERE COMPLETELY WORN. THE PADS ON THE REGULAR BRAKES STILL HAD OVER 50% USE LEFT. THE CONSUMER CLAIMED THAT HE ONLY USED THE EMERGENCY BRAKE TWICE. THE BRAKES ARE NOT SELF ADJUSTING BUT HAVE TO BE ADJUSTED MANUALLY. *NM
NHTSA ODI #10176062
100,000 miles · Nov 4, 2006
Parking Brake
THE PARKING BRAKE IS WORN OFF. IT DID NOT PASS THE STATE INSPECTION AND NOW IT WILL COST ME ABOUT $350 DOLLARS TO GET SOMETHING FIX THAT GM SHOULD RECALL. NOT BEING ABLE TO USE THE PARKING BRAKE COULD OF BEING VERY DANGEROUS TO MY FAMILY IN CASE NEEDED. THANK GOD THIS DID NOT HAPPEN. PLEASE REPORT THIS TO GM AND HAVE THEM DO SOM…
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THE PARKING BRAKE IS WORN OFF. IT DID NOT PASS THE STATE INSPECTION AND NOW IT WILL COST ME ABOUT $350 DOLLARS TO GET SOMETHING FIX THAT GM SHOULD RECALL. NOT BEING ABLE TO USE THE PARKING BRAKE COULD OF BEING VERY DANGEROUS TO MY FAMILY IN CASE NEEDED. THANK GOD THIS DID NOT HAPPEN. PLEASE REPORT THIS TO GM AND HAVE THEM DO SOMETHING. THANKS. *JB
NHTSA ODI #10172617
56,000 miles · Jun 4, 2006
Electrical SystemEquipmentParking Brake
BRAKE ROTORS CORRODED COMPLETELY , EMERGENCY BRAKE RUSTED COMPLETELY , MASSIVE RUST UNDER TRUCK , BRAKE CALIPERS RUSTED , POWER STEERING WENT OUT ,A.C. FAN WENT OUT, SHORT IN WIRING IN DOOR LOCKS AND WINDOWS, THIS A 2001, 56,000, MILES, LOW MILEAGE TRUCK TO HAVE SO MANY PROBLEMS, THE DEALERSHIP SAID THEY HAD NOT SEEN THIS PROB…
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BRAKE ROTORS CORRODED COMPLETELY , EMERGENCY BRAKE RUSTED COMPLETELY , MASSIVE RUST UNDER TRUCK , BRAKE CALIPERS RUSTED , POWER STEERING WENT OUT ,A.C. FAN WENT OUT, SHORT IN WIRING IN DOOR LOCKS AND WINDOWS, THIS A 2001, 56,000, MILES, LOW MILEAGE TRUCK TO HAVE SO MANY PROBLEMS, THE DEALERSHIP SAID THEY HAD NOT SEEN THIS PROBLEM BEFORE, I LOOKED IT UP, THERE IS RUSTING AND TOTAL CORROSION OF THE BRAKE ROTORS IN MANY DIFFERENT STATES, OVER ALONG PERIOD OF TIME, EVEN WHEN THE ROTORS ARE REPLACED THEY ARE RUSTING COMPLETELY AGAIN. CHEVY IS SELLING AN EXPENSIVE TRUCK, AND THEN PROFITING AGAIN ON THE REPLACEMENT OF THE DEFECTIVE PARTS, AND MAKING A PREMIUM PROFIT ON THAT TOO.! THEY ARE NOT BOTHERING TO FIX A DEFECT THAT HAS BEEN GOING ON FOR A LONG TIME. VERY DISGUSTED WITH THE CHEVY SILVERADO, MY FIRST AND LAST CHEVY. *NM
NHTSA ODI #10158960
62,562 miles · Nov 9, 2005
Parking Brake
PARKING BRAKE FAILURE ON 2001 CHEVROLET 1500 SERIES PICKUP. CONSUMER REPORTS MAGAZINE PUBLISHED A SAFETY ALERT FOR THIS SAME PROBLEM STATING THAT 1999-2005 MODELS ARE AT DANGER BECAUSE OF FRICTION THAT COULD MAKE THE PARKING BRAKE INEFFECTIVE. OUR UNDERSTANDING IS A RECALL HAS BEEN ISSUED FOR THE MANUAL TRANSMISSIONS, BUT NOT …
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PARKING BRAKE FAILURE ON 2001 CHEVROLET 1500 SERIES PICKUP. CONSUMER REPORTS MAGAZINE PUBLISHED A SAFETY ALERT FOR THIS SAME PROBLEM STATING THAT 1999-2005 MODELS ARE AT DANGER BECAUSE OF FRICTION THAT COULD MAKE THE PARKING BRAKE INEFFECTIVE. OUR UNDERSTANDING IS A RECALL HAS BEEN ISSUED FOR THE MANUAL TRANSMISSIONS, BUT NOT FOR THE AUTOMATIC TRANSMISSIONS WHICH IS WHAT WE HAVE. WE TOOK ONE OF THE TRUCKS FROM OUR BUSINESS FLEET (COMPRISED OF 15-20 CHEVROLET 1500 SERIES PICKUP TRUCKS) TO BE INSPECTED TODAY AND IT FAILED BECAUSE OF THIS PARKING BRAKE FAILURE. THERE WAS ANOTHER GENTLEMAN AT THE INSPECTION PLACE WITH A CHEVROLET 1500 TRUCK WHILE WE WERE THERE, AND HIS TRUCK FAILED FOR THE PARKING BRAKE ALSO. WE CONTACTED MORITZ CHEVROLET, A LOCAL DEALERSHIP, AND THEY STATED THAT THEY SEE LARGE #S OF VEHICLES COME IN FOR THIS SAME PROBLEM. THE AUTO INSPECTION ESTABLISHMENT SAID THEY SAME THING - THEY FAIL COUNTLESS NUMBERS OF 1999-2005 CHEVROLET 1500 PICKUP TRUCKS FOR PARKING BRAKE FAILURE. IT IS GOING TO COST US $200 TO HAVE THIS REPAIRED. CHEVROLET CLEARLY KNOWS THAT THERE IS A PROBLEM, AND A RECALL NEEDS TO BE ISSUED AT ONCE. THIS IS A SAFETY HAZARD. *JB
NHTSA ODI #10142263
42,000 miles · May 25, 2005
Parking BrakeService Brakes, Air
UPON TAKING MY TRUCK TO GET INSPECTED, I WAS INFORMED THE EMERGENCY BRAKE WAS COMPLETELY SHOT. I TOOK THE TRCUK TO THE DEALER TO GET IT REPLACED AND WAS THEN TOLD THAT ALL FOUR BRAKES WERE GONE (DOWN TO THE ROTORS). THE TRUCK ONLY HAS 42,000 MILES AND WAS NOT DRIVEN THAT HARD SINCE PURCHASED.
NHTSA ODI #10122142
Mileage unknown · May 2, 2005
Parking Brake
2001 CHEVROLET SILVERADO PICKUP EMERGENCY BRAKE FAILURE. RECALL DOESN'T INCLUDE TRUCKS WITH AUTOMATIC TRANSMISSIONS, BUT THEY HAVE THE SAME BRAKE SYSTEMS. MY EMERGENCY BRAKES ARE NOT WORKING ALTHOUGH I HAVE ONLY USED THEM A COUPLE OF TIMES IN FOUR YEARS. ALSO, AFTER QUESTIONING OTHER PEOPLE WITH SAME TRUCKS THEY FIND OUT THAT TH…
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2001 CHEVROLET SILVERADO PICKUP EMERGENCY BRAKE FAILURE. RECALL DOESN'T INCLUDE TRUCKS WITH AUTOMATIC TRANSMISSIONS, BUT THEY HAVE THE SAME BRAKE SYSTEMS. MY EMERGENCY BRAKES ARE NOT WORKING ALTHOUGH I HAVE ONLY USED THEM A COUPLE OF TIMES IN FOUR YEARS. ALSO, AFTER QUESTIONING OTHER PEOPLE WITH SAME TRUCKS THEY FIND OUT THAT THEIR BRAKES ARE NOT WORKING EITHER.*AK
NHTSA ODI #10118846
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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