Illustration2000 GMC SIERRA 4X4 PICK UP ABS BRAKE SYSTEM ACTIVATES AT VERY LOW SPEED, THUS RELEASING BRAKES AND CAUSING VEHICLE TO CONTINUE FORWARD CAUSING ME TO GO OVER A BANK OR HIT OBJECT AHEAD. *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
Service Brakes, Hydraulic complaints
78 reportsTL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. THE CONTACT STATED THAT THERE WAS A RECALL REGARDING THE BRAKES ON HIS VEHICLE. AFTER THE RECALL REPAIR WAS PERFORMED, THE FAILURE RECURRED. WHILE DRIVING 8 MPH, THE VEHICLE CONTINUED TO MOVE WHEN THE BRAKE PEDAL WAS DEPRESSED. PRIOR TO THE REPAIR, THE CONTACT FILED A COMPLAINT AND…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. THE CONTACT STATED THAT THERE WAS A RECALL REGARDING THE BRAKES ON HIS VEHICLE. AFTER THE RECALL REPAIR WAS PERFORMED, THE FAILURE RECURRED. WHILE DRIVING 8 MPH, THE VEHICLE CONTINUED TO MOVE WHEN THE BRAKE PEDAL WAS DEPRESSED. PRIOR TO THE REPAIR, THE CONTACT FILED A COMPLAINT AND HAD THE ISSUE ADDRESSED AND REPAIRED FOR FREE. THE FAILURE MILEAGE WAS 53,000 AND CURRENT MILEAGE WAS 130,563.
PURCHASED 2000 GMC SIERRA 1500 NEW. HAVE DURING TIME OF OWNERSHIP HAD BOTH FRONT AND REAR DISC BRAKES/ROTORS REPAIRED/REPLACED TWICE. ONCE WITH 20,151 MILES UNDER WARRANTY. THE LAST SET OF FRONT ROTORS AND PADS WERE REPLACED WITH 74,299 MILES DURING THE RECALL 05068 FOR ABS SPEED SENSOR CORROSION. I HAD TO PAY FOR THIS SET O…
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PURCHASED 2000 GMC SIERRA 1500 NEW. HAVE DURING TIME OF OWNERSHIP HAD BOTH FRONT AND REAR DISC BRAKES/ROTORS REPAIRED/REPLACED TWICE. ONCE WITH 20,151 MILES UNDER WARRANTY. THE LAST SET OF FRONT ROTORS AND PADS WERE REPLACED WITH 74,299 MILES DURING THE RECALL 05068 FOR ABS SPEED SENSOR CORROSION. I HAD TO PAY FOR THIS SET OF ROTORS AND PADS AT A COST OF $406.03. SINCE TIME OF "SAFETY RECALL" TRUCK HAS INTERMITTENTLY NOT STOPPED PROPERLY AT LOW SPEED. WHILE DRIVING I ATTEMPTED TO STOP HEARD A SLIGHT POP AND THE BRAKE PEDDLE WENT TO THE FLOOR WITH LITTLE RESISTANCE. HAD TRUCK TAKEN TO DEALER SHIP WHERE LAST BRAKE REPAIR AND SAFETY RECALL WAS PERFORMED, THEY DISCOVERED THAT MY MAIN BRAKE LINE HAD RUSTED THROUGH AND HAD FAILED. AT THAT TIME THEY ALSO INFORMED ME THAT ALL THE BRAKE LINES WERE RUSTY AND SHOULD BE REPLACED. I HAD AT THE TIME OF DROPPING THE VEHICLE OFF INFORMED THEM OF THE PROBLEM WITH LOW SPEED BRAKING AND THE FEELING THAT THE ABS WAS ACTIVATING. UPON REPAIR OF THE MAIN BRAKE LINE AT $244.32 (I DECLINED TO HAVE ALL BRAKE LINES REPLACED AT MY EXPENSE) THEY TEST DROVE THE VEHICLE AND INDICATED THAT THEY WERE UNABLE TO EXPERIENCE THE LOW SPEED BRAKE FAILURE. I DO NOT BELIEVE THAT A VEHICLE WITH LESS THAN 90,000 MILES SHOULD HAVE BRAKE LINES RUST THROUGH, THAT TWO SETS OF ROTORS RUST TO THE POINT OF FAILURE. THIS DEGREE OF RUST TO THE BRAKING SYSTEM APPEARS EXCESSIVE AND UNWARRANTED. IN LOOKING AT INTERNET APPEARS TO BE SERIOUS PROBLEM WITH 2000 GMC AND CHEVY PICKUPS. WIFE WILL NOT RIDE IN THE TRUCK AS SHE FEELS IT IS UNSAFE SINCE CAN'T ALWAYS STOP TRUCK! *TR
BRAKES FAIL TO ENGAGE WHEN BRAKING. THANK GOD I DO NOT FOLLOW CLOSELY TO VEHICLES AHEAD OF ME. THIS HAS BEEN HAPPENING FOR SEVERAL YEARS. BROUGHT TO DEALERSHIP WHEN THIS FIRST HAPPENED AND WAS TOLD THERE WAS NOTHING WRONG WITH MY BRAKES AND THERE IS NO RECALL ON THE BRAKE SYSTEM. I WILL REPORT THE LAST DATE THIS HAPPENED. *T…
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BRAKES FAIL TO ENGAGE WHEN BRAKING. THANK GOD I DO NOT FOLLOW CLOSELY TO VEHICLES AHEAD OF ME. THIS HAS BEEN HAPPENING FOR SEVERAL YEARS. BROUGHT TO DEALERSHIP WHEN THIS FIRST HAPPENED AND WAS TOLD THERE WAS NOTHING WRONG WITH MY BRAKES AND THERE IS NO RECALL ON THE BRAKE SYSTEM. I WILL REPORT THE LAST DATE THIS HAPPENED. *TR
EVERY SO OFTEN THE FOR ABOUT A MONTH THE ANTI-LOCK BRAKE SYSTEM WOULD KICK BACK SLIGHTLY WHEN THE VEHICLE WAS COMING TO A STOP. ONE SUNDAY MORNING WHILE COMING TO STOP THE ANTI- LOCK SYSTEM KICKED BACK VERY HARD AND I RAN INTO THE VEHICLE IN FRONT OF ME. NOW THE SYSTEM IS KICKING BACK AT ALMOST EVERY STOP! *TR
ABS BRAKES FAILED TO WORK AT 7-8 MPH. TRUCK HIT VEHICLE IN FRONT OF IT. DEALER SAID ALL IS WELL. *TR
TL*THE CONTACT OWNS A 2000 GMC SIERRA K1500. WHILE ATTEMPTING TO DEPRESS THE BRAKE PEDAL AT APPROXIMATELY 4-5 MPH, THE ANTILOCK BRAKES AUTOMATICALLY ENGAGED. THIS PREVENTS THE VEHICLE FROM COMING TO A COMPLETE STOP. THE FAILURE HAS OCCURRED ON DRY PAVEMENT AND SUNNY WEATHER CONDITIONS. THE VEHICLE EVENTUALLY COMES TO A COMPL…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA K1500. WHILE ATTEMPTING TO DEPRESS THE BRAKE PEDAL AT APPROXIMATELY 4-5 MPH, THE ANTILOCK BRAKES AUTOMATICALLY ENGAGED. THIS PREVENTS THE VEHICLE FROM COMING TO A COMPLETE STOP. THE FAILURE HAS OCCURRED ON DRY PAVEMENT AND SUNNY WEATHER CONDITIONS. THE VEHICLE EVENTUALLY COMES TO A COMPLETE STOP OVER A PERIOD OF TIME. AS A RESULT, THE CONTACT RUNS THE RISK OF REAR ENDING ANOTHER VEHICLE. THROUGH RESEARCH, THE CONTACT DISCOVERED NHTSA CAMPAIGN ID NUMBER 05V379000 FOR THE SAME FAILURE. HE TOOK THE VEHICLE TO A MECHANIC AND HAD THE VEHICLE DIAGNOSED. IT WAS DISCOVERED THAT THE FRONT ABS ASSEMBLY WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE CONTACT CALLED THE MANUFACTURER AND EXPLAINED THE ISSUE. GM STATED THAT HIS VIN WAS NOT INCLUDED IN THE RECALL; THEREFORE, THEY WOULD NOT BE RESPONSIBLE FOR THE REPAIRS. A MECHANIC PERFORMED THE REPAIR, BUT THE CONTACT BELIEVES THAT THE VEHICLE SHOULD HAVE BEEN INCLUDED IN THE RECALL. THE FAILURE MILEAGE WAS 129,000 AND CURRENT MILEAGE WAS 133,000. UPDATED 12/30/08 *BF WHILE DEPRESSING THE BRAKE PEDAL, THE ANTI-LOCK BRAKES ENGAGED ON DRY PAVEMENT. THE PROBLEM STARTED OUT AS INCREASING IN STOPPING DISTANCE. THE CONSUMER STATED THE ANTI-LOCK BRAKES VIBRATED SO VIOLENTLY HE WAS UNABLE TO STOP THE VEHICLE. THE ONLY WAY TO STOP THE VEHICLE WAS TO PULL THE FUSE CONTROLLING THE ANTI-LOCK BRAKES. UPDATED 01/05/09. *JB
TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE BRAKING AT LOW SPEEDS, THE ANTILOCK BRAKES ACTIVATE AUTOMATICALLY. THE VEHICLE WAS TAKEN TO THE REPAIR SHOP FOR A DIAGNOSTIC. A REPORT WAS FILED WITH THE MANUFACTURER AND THEY STATED THAT THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC A…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE BRAKING AT LOW SPEEDS, THE ANTILOCK BRAKES ACTIVATE AUTOMATICALLY. THE VEHICLE WAS TAKEN TO THE REPAIR SHOP FOR A DIAGNOSTIC. A REPORT WAS FILED WITH THE MANUFACTURER AND THEY STATED THAT THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN ID NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC ANTI LOCK). THE CURRENT AND FAILURE MILEAGES WERE 63,000.
WHILE REPLACING THE FUEL FILTER ON THE VEHICLE THE MECHANIC STATED THE FUEL LINES WERE BADLY RUSTED AND STARTED LEAKING. THE TRANSMISSION AND BRAKE LINES WERE ALSO FOUND IN THE SAME CONDITION. I WAS ADVISED THAT ALL THE LINES SHOULD BE REPLACED IMMEDIATELY DUE TO THEIR DETERIORATED CONDITION. THE VEHICLE WAS NOT SAFE TO OPERATE …
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WHILE REPLACING THE FUEL FILTER ON THE VEHICLE THE MECHANIC STATED THE FUEL LINES WERE BADLY RUSTED AND STARTED LEAKING. THE TRANSMISSION AND BRAKE LINES WERE ALSO FOUND IN THE SAME CONDITION. I WAS ADVISED THAT ALL THE LINES SHOULD BE REPLACED IMMEDIATELY DUE TO THEIR DETERIORATED CONDITION. THE VEHICLE WAS NOT SAFE TO OPERATE IN IT'S CURRENT CONDITION. WENT TO DEALER TO ORDER PARTS AND WAS TOLD THAT THE TRANSMISSION AND FUEL LINES COULD BE ORDERED (APPROX. $500.00) BUT THE BRAKE LINES ARE NO LONGER AVAILABLE. ALSO THE REAR BRAKE BACKING PLATES HAVE RUSTED OFF THE VEHICLE. ALL 4 ROTORS HAVE BEEN REPLACED 3 TIMES ALONG WITH BRAKE PADS. THE VEHICLE HAS APPROX. 70,000 MILES. I HAD A FEW NEAR MISSES WHEN TRYING TO STOP QUICKLY - ABS PROBLEM. *TR
TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT FELT A MUSHY FEELING WHEN HE DEPRESSED THE BRAKE PEDAL. HE DEPRESSED THE PEDAL AGAIN AND IT IMMEDIATELY EXTENDED TO THE FLOOR. THE CONTACT PULLED OFF THE ROAD, PLACED THE VEHICLE INTO NEUTRAL, AND APPLIED THE EMERGENCY BRAKE. NHTSA CA…
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TL*THE CONTACT OWNS A 2000 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT FELT A MUSHY FEELING WHEN HE DEPRESSED THE BRAKE PEDAL. HE DEPRESSED THE PEDAL AGAIN AND IT IMMEDIATELY EXTENDED TO THE FLOOR. THE CONTACT PULLED OFF THE ROAD, PLACED THE VEHICLE INTO NEUTRAL, AND APPLIED THE EMERGENCY BRAKE. NHTSA CAMPAIGN ID NUMBER 00V345000 (SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS) WAS REFERENCED. THE FAILURE MILEAGE WAS 122,000.
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.