IllustrationABS SYSTEM BOARD - SOLENOID SOLDER CONNECTIONS VIBRATE LOOSE CAUSING FAULT CODES. ABS LIGHT AND EMERGENCY BRAKE LIGHT REMAIN LIT ON DASH. TRUCK BRAKES WORK BUT WITH NO ABS ON TRUCK. ABS CONTROLLER WAS ONLY PUT ON TWO YEARS OF GMC AND CHEVY TRUCKS 99-01. *TR
2000 GMC Sierra 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2000 GMC Sierra 1500 do not stand out strongly from the model-year median of 181.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sierra 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
90–25K
1025–50K
3550–75K
3275–100K
40100–150K
26150K+
152 reports with mileage · 29 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 78 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 40 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
10 crash reports0 fire reports3 injury reports
What owners actually said
181 reportsWHILE TRAVELING ON COUNTRY ROAD IN QUARRYVILLE PA. I CAME TO A HILL AND A STOP SIGN AND PRESSED ON THE BRAKE PEDDLE. IT WENT TO THE FLOOR. I HAD VERY LIMITED BRAKING POWER AND TRAVELED THROUGH THE STOP SIGN ACROSS THE INTERSECTION. IT WAS A 4 WAY STOP INTERSECTION. AND NO ACCIDENT OCCURRED . BUT OH BOY DID I GET A DIRTY LOOK! …
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WHILE TRAVELING ON COUNTRY ROAD IN QUARRYVILLE PA. I CAME TO A HILL AND A STOP SIGN AND PRESSED ON THE BRAKE PEDDLE. IT WENT TO THE FLOOR. I HAD VERY LIMITED BRAKING POWER AND TRAVELED THROUGH THE STOP SIGN ACROSS THE INTERSECTION. IT WAS A 4 WAY STOP INTERSECTION. AND NO ACCIDENT OCCURRED . BUT OH BOY DID I GET A DIRTY LOOK! ALL THE BRAKE FLUID WAS GONE OUT ONE HALF OF THE CONTAINER. LOOKING AT THE BRAKE LINES THEY ARE RUSTED THROUGH AND LEAKING. *TR
MULTIPLE INCIDENCES OF STEEL BRAKE LINE CORROSION, RESULTING IN LOSS OF FLUID PRESSURE, AND THEREFORE LOSS OF BRAKING ABILITY. THIS HAS HAPPENED 3 DIFFERENT TIMES ALREADY. LUCKILY I DRIVE COUNTRY ROADS WITH LITTLE OTHER TRAFFIC.OBVIOUSLY THIS IS A REPETITIVE AND SERIOUS ISSUE FOR MANY OTHER OWNERS OF THESE VEHICLES, AS EVIDENCED…
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MULTIPLE INCIDENCES OF STEEL BRAKE LINE CORROSION, RESULTING IN LOSS OF FLUID PRESSURE, AND THEREFORE LOSS OF BRAKING ABILITY. THIS HAS HAPPENED 3 DIFFERENT TIMES ALREADY. LUCKILY I DRIVE COUNTRY ROADS WITH LITTLE OTHER TRAFFIC.OBVIOUSLY THIS IS A REPETITIVE AND SERIOUS ISSUE FOR MANY OTHER OWNERS OF THESE VEHICLES, AS EVIDENCED BY THE SHEER NUMBER OF COMPLAINTS REGARDING THE SAME ISSUE FILED TO NHTSA FOR THIS VEHICLE. DOES NHTSA EVEN READ OR EVALUATE THE VOLUME AND SERIOUSNESS OF COMPLAINTS ON THE SAME ISSUE? HOW MANY LIVES MUST BE LOST BEFORE THIS BECOMES A RECALL? *TR
I WAS DRIVING DOWN THE HIGHWAY IN MY 2000 GMC SIERRA TRUCK WHEN I APPLIED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. I COULDN'T STOP AT THE RED LIGHT, SO I HAD TO MAKE A QUICK LEFT TURN, ACROSS ON ONCOMING TRAFFIC INTO A PARKING LOT BEFORE I COULD GET THE CAR STOPPED. THIS IS THE SECOND TIME MY BRAKES FAILED AND IN BOTH CASES…
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I WAS DRIVING DOWN THE HIGHWAY IN MY 2000 GMC SIERRA TRUCK WHEN I APPLIED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. I COULDN'T STOP AT THE RED LIGHT, SO I HAD TO MAKE A QUICK LEFT TURN, ACROSS ON ONCOMING TRAFFIC INTO A PARKING LOT BEFORE I COULD GET THE CAR STOPPED. THIS IS THE SECOND TIME MY BRAKES FAILED AND IN BOTH CASES IT WAS BECAUSE THE STEEL BRAKE LINES ROTTED OUT. I'VE OWNED MANY GM VEHICLES AND NEVER HAD TO REPLACE THE STEEL BRAKE LINES, NOT EVEN ON MY 1969 OLDS CUTLASS THAT I STILL OWN. I READ ABOUT OTHERS HAVING THE SAME PROBLEM AND SUPPOSEDLY GM DID NOT RECALL. BUT WAS GOING TO REPLACE PARTS AND LABOR FOR $500. I CALLED GMC AND THEY SAID THEY DIDN'T KNOW OF THIS AND I CALLED 2 DEALERS AND THEY DIDN'T KNOW OF THIS KIT EITHER. SO, I GUESS I HAVE A BIG BILL ON MY HANDS. CHEAP BRAKE LINES WERE USED BUILDING THIS TRUCK, AND BRAKES ARE PRETTY IMPORTANT TO STOP. I'M LUCKY I WAS ABLE TO GET OUT OF THIS SITUATION WITHOUT WRECKING. *TR
HAD A RECALL ON THE BRAKES, RECALL # 05068. CLASSIC CHEVEROLET (NOW OUT OF BUSINESS DID THE WORK) THEY ONLY CLEANED THE PARTS, ABS LIGHT CAME BACK ON A FEW MONTHS LATER SO THEY JUST KEPT CLEANING THEM UNTIL MY WARRANTY EXPIRED. THEN WHEN I BROUGHT IT BACK IT ALL OF A SUDDEN NEED OVER $2000 DOLLARS OF REPAIRS. MY WIFE GOT THEM TO…
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HAD A RECALL ON THE BRAKES, RECALL # 05068. CLASSIC CHEVEROLET (NOW OUT OF BUSINESS DID THE WORK) THEY ONLY CLEANED THE PARTS, ABS LIGHT CAME BACK ON A FEW MONTHS LATER SO THEY JUST KEPT CLEANING THEM UNTIL MY WARRANTY EXPIRED. THEN WHEN I BROUGHT IT BACK IT ALL OF A SUDDEN NEED OVER $2000 DOLLARS OF REPAIRS. MY WIFE GOT THEM TO KICK IN A $1000. BUT I BELIEVE THE PARTS SHOULD OF BEEN RE MANUFACTURED OUT OF STAINLESS STEEL SO THEY DIDN'T RUST & I WOULDN'T STILL BE HAVING HIS PROBLEM. NOW I'M PROBABLY LOOKING AT ANOTHER $2000 TO CONTINUALLY FIX THE SAME ISSUE. THEY BASICALLY DID THE SAME THING WITH THE TAIL GATE RECALL, JUST REPLACED WITH NEW PARTS OF THE SAME MAT'L AS THE ONES THAT WERE RUSTING AND FAILING IN THE 1ST PLACE. SO I REPLACED THEM SINCE THEN AGAIN ALSO. WHICH IF THEY WOULD OF MADE THEM OUT OF GALVANIZED OR STAINLESS THEY WOULD OF HELD UP BETTER. *TR
WHILE DRIVING HOME FROM WORK AT APPROXIMATELY 35MPH ON A CONGESTED ROAD, I APPLIED THE BRAKES TO STOP AT AN UPCOMING LIGHT AND THE BRAKE PEDAL IMMEDIATELY WENT TO THE FLOOR. I SWERVED INTO THE ADJACENT LANE TO AVOID REAR ENDING THE CAR IN FRONT OF ME. LUCKILY THERE WAS AN OPENING IN THE ADJACENT LANE AND THE CAR BEHIND ME WAS OB…
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WHILE DRIVING HOME FROM WORK AT APPROXIMATELY 35MPH ON A CONGESTED ROAD, I APPLIED THE BRAKES TO STOP AT AN UPCOMING LIGHT AND THE BRAKE PEDAL IMMEDIATELY WENT TO THE FLOOR. I SWERVED INTO THE ADJACENT LANE TO AVOID REAR ENDING THE CAR IN FRONT OF ME. LUCKILY THERE WAS AN OPENING IN THE ADJACENT LANE AND THE CAR BEHIND ME WAS OBSERVANT. I PULLED OFF THE ROAD AND OPENED THE HOOD TO CONFIRM THE BRAKE FLUID LEVEL. IT WAS VERY LOW. I CLIMBED UNDER THE TRUCK TO OBSERVE BRAKE FLUID EVERYWHERE AND ASSUMED A BRAKE LINE FAILED. I TOOK THE TRUCK TO A REPAIR SHOP AND WAS INFORMED THE BRAKE LINE WAS RUSTED THROUGH AND NEEDED TO BE REPLACED. A COST OF $275. UPON RESEARCHING THIS ON THE INTERNET, I HAVE SEEN THAT THIS IS A MAJOR PROBLEM AND GM IS HOLDING OUT DOING A RECALL. THIS INCIDENT CAUSED ME TO NARROWLY MISS AN ACCIDENT AND IT MADE FOR A TENSE AND ANXIOUS TIME. I BELIEVE GM SHOULD RECOGNIZE THIS ISSUE AND DO SOMETHING QUICKLY BEFORE MORE SERIOUS ACCIDENTS OCCUR. *TR
REAR BRAKE LINE FAILED WHEN BRAKE PEDAL WAS PRESSED. UPON INSPECTION BRAKE LINE SHOWED MAJOR CORROSION, AND REMAINING LINES APPEAR TO HAVE MAJOR CORROSION AS WELL. *TR
I WAS DRIVING BETWEEN 60 AND 65 AND THE TRUCK WOULDN'T SLOW DOWN EVEN I TRIED TO BRAKE THE RPM GAUGE WAS AT 5000 RPM AND THE TRUCK WAS FORCING ME FORWARD I PUT IT IN NEUTRAL AND IT STILL WAS ACCELERATING LIKE THE ENGINE WAS BEING REVVED UP. I MANAGED TO PULL OUT OF TRAFFIC AND KILLED THE ENGINE BUT IT WOULDN'T SHUT OFF I TOOK TH…
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I WAS DRIVING BETWEEN 60 AND 65 AND THE TRUCK WOULDN'T SLOW DOWN EVEN I TRIED TO BRAKE THE RPM GAUGE WAS AT 5000 RPM AND THE TRUCK WAS FORCING ME FORWARD I PUT IT IN NEUTRAL AND IT STILL WAS ACCELERATING LIKE THE ENGINE WAS BEING REVVED UP. I MANAGED TO PULL OUT OF TRAFFIC AND KILLED THE ENGINE BUT IT WOULDN'T SHUT OFF I TOOK THE KEYS OUT AND AFTER ABOUT 15 SECONDS IT FINALLY WENTOFF. I TRIED RESTARTING IT SEVERAL TIMES AND IT STILL KEPT ACCELERATING TO THE MAX EVERYONE TIME. I CHECKED THE ACCELERATIONS CABLE AND IT WAS NOT STUCK. *TR
THE STEEL BRAKE LINES GOING TO THE REAR BRAKES RUSTED AND BLEW. AFTER A INSPECTION ALL THE STEEL BRAKE LINES NEEDED TO BE REPLACED. *TR
CORDED BRAKE LINES CAUSED THE FLUID TO BE LOSS UPON STOPPING CAUSING THE BRAKES TO GO OUT, THIS HAPPENED IN 2012 WITH ALL THE MAIN BRAKE LINES TO ALL 4 WHEELS HAVING TO BE REPLACED, THEN AGAIN IN 2013 THE BRAKE LINES ATTACHED TO THE REAR DIFFERENTIAL, CORRODED CAUSING A RAPID LOSS IN BRAKE FLUID AND, AND LOSS OF BRAKES. *JS
Official recalls
100V222000 · Service Brakes, Hydraulic:power Assist:vacuum
Aug 8, 2000
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH VACUUM POWER, 4-WHEEL DISC BRAKES. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 105, "HYDRAULIC BRAKE SYSTEMS." THESE VEHICLES WERE BUILT WITH A KINKED BRAKE BOOSTER VACUUM SUPPLY HOSE.
Consequence & remedy
Consequence: THESE VEHICLES DO NOT COMPLY WITH REQUIREMENTS OF FMVSS NO. 105.
Remedy: DEALERS WILL RE-ROUTE THE BRAKE BOOSTER VACUUM SUPPLY HOSE.
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.