IllustrationWAS DRIVING DOWN THE ROAD AND WHEN I TRIED TO STOP I HAD NO BRAKES. TURNS OUT THAT THE BRAKE LINE RUSTED THROUGH SOMEWHERE BEHIND THE CAB NEAR THE GAS TANK. *TR
2000 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2000 Chevrolet Silverado 1500 do not stand out strongly from the model-year median of 525.
About this comparison →How this year compares
Owner complaints by model year
Compare all Silverado 1500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
210–25K
3725–50K
8050–75K
10275–100K
152100–150K
97150K+
489 reports with mileage · 125 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes, Hydraulic. Review the 237 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 162 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
69 crash reports5 fire reports25 injury reports
What owners actually said
614 reportsTHE VEHICLE BRAKE PEDAL WENT TO THE FLOOR AND IT WAS DISCOVERED THAT THE BRAKE LINE FROM THE MASTER CYLINDER TO THE ANTI-LOCK BRAKE MODULE RUSTED THROUGH LEAKING ALL THE FLUID. ONE MONTH LATER AFTER REPLACEMENT OF THE TWO MASTER CYLINDER BRAKE LINES THE REAR BRAKE LINES BLEW CAUSING LOSS OF ALL BRAKES WHILE TRYING TO STOP FROM …
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THE VEHICLE BRAKE PEDAL WENT TO THE FLOOR AND IT WAS DISCOVERED THAT THE BRAKE LINE FROM THE MASTER CYLINDER TO THE ANTI-LOCK BRAKE MODULE RUSTED THROUGH LEAKING ALL THE FLUID. ONE MONTH LATER AFTER REPLACEMENT OF THE TWO MASTER CYLINDER BRAKE LINES THE REAR BRAKE LINES BLEW CAUSING LOSS OF ALL BRAKES WHILE TRYING TO STOP FROM AN INTERSTATE SPEED OF 70 MPH. EXAMINATION OF ALL THE BRAKE LINE SYSTEM SHOWS SEVERE EXCESSIVE RUSTING THROUGHOUT THE ENTIRE BRAKE LINE SYSTEM WHICH WILL REQUIRE A TOTAL BRAKE LINE SYSTEM REPLACEMENT. I HAVE NEVER SEEN A VEHICLE WITH BRAKE LINES RUSTED LIKE THIS FOR A VEHICLE WITH THIS MILEAGE AND AGE. THERE IS AN OBVIOUS MANUFACTURERS PROBLEM WITH THIS VEHICLES BRAKE LINE COMPONENTS. ITS A MIRACLE SOMEONE WASN'T KILLED DUE TO THE LACK OF COMPONENT QUALITY. *TR
WHEN BRAKING AT LOW SPEEDS THE ABS KICKS IN AND YOU LOSE THE ABILITY TO STOP. I USUALLY PUT THE GEAR SELECTOR IN NEUTRAL OR REVERSE TO GET THE TRUCK TO STOP. *TR
IN AUGUST 2013 REAR BRAKE LINES UNDER REAR DIFFERENTIAL LEAKING. HAD REPAIRED WAS INFORMED THEY WERE RUSTED AND CORRODED, 2 BRAKE LINES REPLACED BY INDEPENDENT MECHANIC. I ALSO NOTED THE OTHER BRAKE LINES THROUGHOUT VEHICLE WERE ALSO WERE RUSTED AND CORRODED - SUGGESTED THAT ALL BRAKE LINES BE REPLACED. MECHANIC ADVISED NOT N…
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IN AUGUST 2013 REAR BRAKE LINES UNDER REAR DIFFERENTIAL LEAKING. HAD REPAIRED WAS INFORMED THEY WERE RUSTED AND CORRODED, 2 BRAKE LINES REPLACED BY INDEPENDENT MECHANIC. I ALSO NOTED THE OTHER BRAKE LINES THROUGHOUT VEHICLE WERE ALSO WERE RUSTED AND CORRODED - SUGGESTED THAT ALL BRAKE LINES BE REPLACED. MECHANIC ADVISED NOT NECESSARY AT THAT TIME. THE BRAKE PEDAL HAD GONE TO FLOOR WHEN DRIVEN, NO BRAKE FLUID IN RESERVOIR, NOTED PUDDLE OF BRAKE FLUID UNDER REAR DIFFERENTIAL AT THAT TIME. JANUARY 12, 2014 - BRAKE LIGHT WENT ON IN VEHICLE, BRAKE FLUID RESERVOIR HALF EMPTY. I WALKED AROUND AND LOOKED UNDER VEHICLE - LEAKING FROM REAR BRAKE LINES NOTED, ALSO NOTED AGAIN THE CORROSION AND RUST OF FRONT BRAKE LINES. BROUGHT TO MY INDEPENDENT MECHANIC AGAIN - STATED IT WAS DIFFERENT BRAKE LINE THEN ONE REPAIRED DURING AUGUST 2013. STATED AFTER EXAMINING CONDITION OF ALL BRAKE LINES - RUST/CORROSION - HE WAS GOING TO NOW REPLACE ALL BRAKE LINES FROM THE MASTER CYLINDER BACK. THERE WAS A RECALL MANY YEARS AGO FOR BRAKE LINE DEFECT - BUT DID NOT ADDRESS THE ENTIRE SYSTEM. FORTUNATELY THIS REPAIR WAS NEEDED BEFORE I WENT ON LONG TRIP TO PENNSYLVANIA, WITH HILLY TERRAIN AND SLICK ROADS - EARLY DETECTION MAY HAVE AVOIDED A SEVERE ACCIDENT. *TR
I WAS DRIVING DOWN AN ICE COVERED ROAD STOPPED AT A STOP SIGN THEN WENT DOWN A HILL AND WHEN I PUSHED ON BRAKE PEDAL IT WENT TO THE FLOOR ALMOST WRECKED UNABLE TO STOP ON ICE COVERED ROAD. BRAKE LIGHT NEVER CAME ON UNTIL I GOT HOME ABOUT HALF HOUR AFTER BRAKE LINE FAILURE. HAD A 5 YEAR OLD AND A 7 YEAR OLD WITH ME THIS IS…
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I WAS DRIVING DOWN AN ICE COVERED ROAD STOPPED AT A STOP SIGN THEN WENT DOWN A HILL AND WHEN I PUSHED ON BRAKE PEDAL IT WENT TO THE FLOOR ALMOST WRECKED UNABLE TO STOP ON ICE COVERED ROAD. BRAKE LIGHT NEVER CAME ON UNTIL I GOT HOME ABOUT HALF HOUR AFTER BRAKE LINE FAILURE. HAD A 5 YEAR OLD AND A 7 YEAR OLD WITH ME THIS IS UNACCEPTABLE SOMETHING'S ARE MORE IMPORTANT THEN MONEY. I HAVE HAD VEHICLES THAT WERE 30 AND EVEN 40 YEARS OLD THAT HAD ORIGINAL BRAKE LINES ON THEM AND NEVER HAD A PROBLEM LIKE THAT. THIS IS SIMPLY USING CHEAP METAL JUST LIKE THEY USE ON THE BODIES OF THEIR PICKUP TRUCKS. WHETHER OR NOT ANYTHING IS DONE ABOUT THIS BY GM MAKES ME LITTLE DIFFERENCE BUT I WILL BE DOING SOMETHING ABOUT IT. I AM SELLING THE TRUCK AND BUYING A DIFFERENT MAKE THAT ISN'T SO DANGEROUS TO ME AND THOSE DRIVING AROUND ME. THANK YOU FOR YOUR TIME. *TR
MY TRUCK HAS THE BAD GM CASTECH CYLINDER HEADS THAT LEAK COOLANT INTO THE OIL. GM KNOWS ABOUT THIS PROBLEM VIA GM TSB. DEALER AND MFG. REFUSED TO DO ANYTHING. I FEEL THIS IS NOT A MECHANICAL WEAR ISSUE. IT IS BAD HEADS FROM THE MANUFACTURER. GM SHOULD BE FORCED TO ACKNOWLEDGE THIS ISSUE AND RECALL THE AFFECTED VEHICLE. *TR
VEHICLE CAME TO STOP IN FRONT OF ME. DEPRESSING THE BRAKES, THE BRAKE PEDAL WENT TO THE FLOOR AND HAD TO SWERVE OFF THE ROAD AND INTO THE DITCH OF THE HIGHWAY TO AVOID AN ACCIDENT WITH THE OTHER VEHICLE. LEARNED THAT THE BRAKE LINES HAD RUSTED OUT AND CAUSED A SIGNIFICANT LEAK. UPON RESEARCHING THIS, FOUND OUT THIS HAS BEEN A…
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VEHICLE CAME TO STOP IN FRONT OF ME. DEPRESSING THE BRAKES, THE BRAKE PEDAL WENT TO THE FLOOR AND HAD TO SWERVE OFF THE ROAD AND INTO THE DITCH OF THE HIGHWAY TO AVOID AN ACCIDENT WITH THE OTHER VEHICLE. LEARNED THAT THE BRAKE LINES HAD RUSTED OUT AND CAUSED A SIGNIFICANT LEAK. UPON RESEARCHING THIS, FOUND OUT THIS HAS BEEN A COMMON PROBLEM WITH MY VEHICLE, AND THAT THERE IS AN INVESTIGATION EA11001 THAT HAS BEEN ONGOING FOR CLOSE TO 2 YEARS. 800+ REPORTS EXIST. THOUSANDS MORE UNREPORTED IN VARIOUS INTERNET FORUMS. WHEN WILL THIS BE RESOLVED WITH A VEHICLE SAFETY RECALL, BEFORE SOMEONE GETS KILLED? THIS IS A BAD DESIGN, DUE TO STEEL BRAKE LINES, AND DESIGNED TO COLLECT MOISTURE AND SALT BY MEANS OF SPRING MATERIAL ON EXTERIOR OF LINES, AND LINES GROUPED TOGETHER DIRECTLY BEHIND THE SPLASH COMING OFF THE FRONT TIRE. IT IS AN OBVIOUS FLAW. FURTHERMORE, GM APPARENTLY DOES NOT HAVE GM REPLACEMENT (CERTIFIED?) SET OF BRAKE LINES. IS IT GOING TO TAKE A FATAL CRASH TO FINALLY RESOLVE THIS? *TR
HAD DRIVEN TRUCK HOME FOR LUNCH.WAS RETURNING TO WORK. WHEN I TRIED TO STOP AT REDLIGHT TO MAKE A LEFT THE BRAKE PEDAL WENT TO FLOOR AND I HAD NO BRAKES. WAS ABLE TO GET TRUCK INTO PARKING LOT. PUDDLE OF BRAKE FLUID ON GROUND UNDER DRIVER SIDE REAR WHEEL. I WAS SCARED. IT COULD HAVE BEEN BAD. I HAVE NEVER HEARD OF THIS HAPPEN…
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HAD DRIVEN TRUCK HOME FOR LUNCH.WAS RETURNING TO WORK. WHEN I TRIED TO STOP AT REDLIGHT TO MAKE A LEFT THE BRAKE PEDAL WENT TO FLOOR AND I HAD NO BRAKES. WAS ABLE TO GET TRUCK INTO PARKING LOT. PUDDLE OF BRAKE FLUID ON GROUND UNDER DRIVER SIDE REAR WHEEL. I WAS SCARED. IT COULD HAVE BEEN BAD. I HAVE NEVER HEARD OF THIS HAPPENING BEFORE. BRAKE LINES RUSTED. I HAD NO WARNING. ONE MINUTE I HAD BRAKES AND THE NEXT MINUTE I HAD NO BRAKES. HAD TRUCK TOWED. *TR
BRAKE LINE FAILURE, WITHOUT ANY WARNING. RESULTED IN LOSS OF BRAKES! *TR
DRIVING ON A SECONDARY RD STOPPED TO TURN. BRAKE LINE BLEW UNDER DRIVERS SIDE. *TR
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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.