I JUST HAD TRANSMISSION WORK DONE ON MY TRUCK WHEN IT BURNED THE GEARS UP. MY BRAKES HAVE ALWAYS EITHER WENT COMPLETELY TO THE FLOOR BEFORE THEY STOPPED OR LOCKED UP. RIGHT NOW ITS BROKE DOWN DUE TO TOO MANY PROBLEMS FOR ME TO BE ABLE TO FIX BUT HAS ONLY BEEN NOT DRIVEABLE SINCE JULY 2017
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
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.
Power Train complaints
16 reportsTL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS PARKED AND THE GEAR WAS IN PARK, THE VEHICLE INDEPENDENTLY BEGAN TO ROLL. THE CONTACT APPLIED THE EMERGENCY BRAKE AND THE VEHICLE STOPPED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE APPROXIMATE FAILUR…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. WHILE THE VEHICLE WAS PARKED AND THE GEAR WAS IN PARK, THE VEHICLE INDEPENDENTLY BEGAN TO ROLL. THE CONTACT APPLIED THE EMERGENCY BRAKE AND THE VEHICLE STOPPED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE APPROXIMATE FAILURE MILEAGE WAS 166,000. THE CONTACT COULD NOT PROVIDE THE VIN.
HAD TO DISCONNECT THE ANTI LOCK BRAKE SO I COULD STOP. WHEN DRIVING SLOW AND PRESSING ON THE BRAKE PEDAL, THE PEDAL IS SOLID AND DOES NOT MOVE. VERY DANGEROUS. CANNOT STOP THE VEHICLE AT ALL. BRAKE LINES ROTTED OUT. HAS TO REPLACE. TRANSMISSION LINES ROTTED OUT. HAD TO REPLACE. TRANSMISSION OIL COOLER ROTTED OUT. HAD TO RE…
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HAD TO DISCONNECT THE ANTI LOCK BRAKE SO I COULD STOP. WHEN DRIVING SLOW AND PRESSING ON THE BRAKE PEDAL, THE PEDAL IS SOLID AND DOES NOT MOVE. VERY DANGEROUS. CANNOT STOP THE VEHICLE AT ALL. BRAKE LINES ROTTED OUT. HAS TO REPLACE. TRANSMISSION LINES ROTTED OUT. HAD TO REPLACE. TRANSMISSION OIL COOLER ROTTED OUT. HAD TO REPLACE. FUEL LINES ARE ROTTING OUT. NOT REPLACED YET. DRIVE SHAFT IS QUESTIONABLE. SEVERELY RUSTED. REAR BACKING PLATES ROTTED OFF, NO MORE PARKING - EMERGENCY BRAKE. CHECK ENGINE LIGHT WILL NOT GO OUT. REPLACED CATALYTIC CONVERTER MANY TIMES WITH NO RESULTS. ENGINE LEAKS OIL. LOOSING COOLANT, POSSIBLE BURNING IT. FUEL MILEAGE IS TERRIBLE. BODY RUSTED OUT. ROCKER PANELS ARE GONE. CAB CORNERS ARE GONE. REAR BUMPER IS GONE. PUTTING THE SPARE TIRE UNDERNEATH IS A STUPID IDEA. THE COST TO REPLACE THESE PARTS IS TOO EXPENSIVE. FOR WHAT THESE VEHICLES COST NEW ALL OF THESE PARTS SHOULD BE MADE OUT OF STAINLESS STEEL OR USE PLASTIC FOR THE FUEL LINES AND BRAKE LINES. THE CHECK ENGINE LIGHT BEING RELATED TO A POLLUTION CONTROL DEVICE SHOULD BE ENTIRE COVERED BY THE MANUFACTURER. THESE PARTS AND WHATEVER IS UPSTREAM THAT CAUSED THE POLLUTION CONTROL PART TO FAIL SHOULD BE COVERED BY THE MANUFACTURER IN PERPETUITY. ANTI LOCK BRAKES SHOULD BE REMOVED FROM ALL CARS. THE PARTS ARE TOO EXPENSIVE TO REPLACE. THE COST SHOULD NOT BE ON THE SHOULDERS OF THE CAR OWNER. *TR
EXTREME RUST ON UNDER CARRAGE OF VEHICLE. BRAKE LINES RUSTED OUT CAUSING BRAKE FAILURE FRAME RUSTED OUT AT REAR LEAF SPRINGS AND FRAME RAIL CROSS MEMBERS. REAR SHOCK HANGERS RUSTED OFF VEHICLE. FRAME RUSTED SO BAD THAT IT PROHIBITS TOUNG OF ANY TYPE OF TRAILER. TOYOTA HAD SAME PROBLEM AND THEY HAD TO DO A RECALL SO WHY HAS GM NO…
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EXTREME RUST ON UNDER CARRAGE OF VEHICLE. BRAKE LINES RUSTED OUT CAUSING BRAKE FAILURE FRAME RUSTED OUT AT REAR LEAF SPRINGS AND FRAME RAIL CROSS MEMBERS. REAR SHOCK HANGERS RUSTED OFF VEHICLE. FRAME RUSTED SO BAD THAT IT PROHIBITS TOUNG OF ANY TYPE OF TRAILER. TOYOTA HAD SAME PROBLEM AND THEY HAD TO DO A RECALL SO WHY HAS GM NOT HAD TO DO THE SAME THING. IT IS A VERY LARGE SAFETY ISSUE AFFECTING MANY VEHICLES ON THE HWY TODAY.
THE TRANSMISSION IN THIS VEHICLE IS A TOTAL PIECE OF JUNK. THERE ARE MANY, MANY VEHICLES WITH THIS SAME TRANSMISSION. IT LOCKED UP SLINGING THE DRIVER INTO THE STEERING WHEEL AND WINDSHIELD. THIS BROKE THE BOLTS HOLDING THE SEAT TO THE FRAME. THE COST TO FIX WAS OVER 1200 DOLLARS. I'VE TALKED WITH SEVERAL TRANSMISSION SHOPS, EAC…
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THE TRANSMISSION IN THIS VEHICLE IS A TOTAL PIECE OF JUNK. THERE ARE MANY, MANY VEHICLES WITH THIS SAME TRANSMISSION. IT LOCKED UP SLINGING THE DRIVER INTO THE STEERING WHEEL AND WINDSHIELD. THIS BROKE THE BOLTS HOLDING THE SEAT TO THE FRAME. THE COST TO FIX WAS OVER 1200 DOLLARS. I'VE TALKED WITH SEVERAL TRANSMISSION SHOPS, EACH ONE IS IN BUSINESS DUE TO THE FACT THAT THIS TRANSMISSION IS DEFECTIVE. THEY REPAIR OR REPLACE MORE OF THESE THAN ALL OTHER TIMES 400. IT APPEARS THAT THIS PROBLEM HAS BEEN A PROBLEM SINCE FIRST BEING USED. IT ALSO APPEARS THAT NO ONE IS BEING HELD ACCOUNTABLE FOR THE REPAIRS AND/OR DEATHS, INJURY THAT IS BEING CAUSED BY THIS DEFECTIVE UNIT. IT'S OINDTALLED IN MILLIONS OF VEHICLES WORLDWIDE. WHEN IS SOMETHING GOING TO BE DONE ? WHEN IS SOMEONE GOING TO BE HELD ACCOUNTABLE ? STOP THIS MADNESS, PLEASE ! THE TIME IT'S TOOK ME TO FILL OUT THE FORM, DOZENS OF PEOPLE WERE INJURED DUE TO THE ABOVE STATEMENT. *TR
HI I WAS HAULING DEBRIS FROM MY YARD AND TAKING TO LAND FILL.ABOUT 800 TO 900LBS TOTAL. STOPPED AT CONVENIENCE STORE FOR GAS AND FOOD. PULLING OUT OF PARKING LOT, BRAKES GAVE OUT, BRAKE PEDAL WENT TO THE FLOOR. NO WARNING LIGHTS. NO WARNING AT ALL...BARELY ANY BRAKES AT ALL. I WAS JUST ABOUT TO GET ON EXPRESSWAY?? WOW! THERE WOU…
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HI I WAS HAULING DEBRIS FROM MY YARD AND TAKING TO LAND FILL.ABOUT 800 TO 900LBS TOTAL. STOPPED AT CONVENIENCE STORE FOR GAS AND FOOD. PULLING OUT OF PARKING LOT, BRAKES GAVE OUT, BRAKE PEDAL WENT TO THE FLOOR. NO WARNING LIGHTS. NO WARNING AT ALL...BARELY ANY BRAKES AT ALL. I WAS JUST ABOUT TO GET ON EXPRESSWAY?? WOW! THERE WOULD HAVE BEEN NO STOPPING THIS THING IN AN EMERGENCY?? I SEE GM ALREADY KNOWS OF THIS FAILURE. I THINK A HEADS UP WOULD HAVE BEEN IN ORDER??? I'VE CALLED ALL THE PEOPLE I KNOW WITH SIMILAR VEHICLES. ONLY ONE PERSON WAS AWARE OF THE ISSUE AND HE HAS SPENT OVER A 1000.00 IN REPAIRS. REPLACED RUSTED BRAKE LINES. HE TOLD ME HE JUST REPLACED THE TRANSMISSION LINES ALSO. HAS ANYONE BEEN INJURED OR KILLED?? I CALLED THE DEALERSHIP, JERRY'S CHEVROLET FOR INFORMATION. I PURCHASED IT NEW. WAITING FOR SERVICE DEPARTMENT TO RETURN MY CALL. *TR
2000 CHEVY Z71 BRAKE LINES RUSTED HOLES IN LINE DDDKY. *TR
I OWN A 2000 CHEVY SILVERADO. MY TRANSFER CASE IS STUCK IN 4WD ALL THE TIME WHICH HAS CAUSED DAMAGE TO MY FRONT DIFF ALSO. IF I CONTINUE TO DRIVE IT THE FRONT DIFF WILL LOCK UP. MY FATHER IN LAW OWNS THE SAME YEAR TRUCK WITH THE SAME PROBLEM. I HAVE ALSO TALKED TO SEVERAL OTHERS WITH THE SAME CONDITION. I WORK AS A AUTOMOTI…
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I OWN A 2000 CHEVY SILVERADO. MY TRANSFER CASE IS STUCK IN 4WD ALL THE TIME WHICH HAS CAUSED DAMAGE TO MY FRONT DIFF ALSO. IF I CONTINUE TO DRIVE IT THE FRONT DIFF WILL LOCK UP. MY FATHER IN LAW OWNS THE SAME YEAR TRUCK WITH THE SAME PROBLEM. I HAVE ALSO TALKED TO SEVERAL OTHERS WITH THE SAME CONDITION. I WORK AS A AUTOMOTIVE TECHNICIAN AND ALMOST EVERY TRANSFER CASE OF THIS GEN EXHIBITS THE SAME PROBLEM. I FEAR THAT IF THESE ARE NOT CORRECTED THEY WILL LOCK UP AND CAUSE SERIOUS INJURY. THE ONLY FIX I KNOW OF IS TO REPLACE THE DIFF AND TRANSFER CASE. I DRIVE MY TRUCK VERY NORMALLY. IT IS NOT ABUSED AND DOES VERY LITTLE OFF ROAD DRIVING. *TR
TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. EVER SINCE THE VEHICLE WAS PURCHASED, THE ENGINE HAS BEEN MAKING A STRANGE NOISE. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THEY FOUND NO FAILURES. THE MANUFACTURER STATED THAT THEY WERE AWARE OF THE PISTONS STRIKING AGAINST THE METAL BECAUSE THERE WAS NOT ENOUGH CLEAR…
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TL*THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. EVER SINCE THE VEHICLE WAS PURCHASED, THE ENGINE HAS BEEN MAKING A STRANGE NOISE. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THEY FOUND NO FAILURES. THE MANUFACTURER STATED THAT THEY WERE AWARE OF THE PISTONS STRIKING AGAINST THE METAL BECAUSE THERE WAS NOT ENOUGH CLEARANCE BETWEEN THE PISTONS AND THE CYLINDER. THE MANUFACTURER COULD NOT CORRECT THE FAILURE AND THERE WERE NO RECALLS FOR THE ISSUE. THE MILEAGE ON THE VEHICLE HAS EXCEEDED THE WARRANTY; THEREFORE, THE MANUFACTURER WILL NOT ASSIST. IN ADDITION, THE CONTACT HEARD A NOISE COMING FROM THE REAR OF THE VEHICLE. THE DEALER STATED THAT THERE WAS A SLACK IN THE REAR, WHICH COULD BE REPAIRED BY REPLACING THE YOKE WITH A NICKEL PLATED COVER. THE REPAIR WAS NOT PERFORMED BECAUSE THE CONTACT FEELS AS IF THE MANUFACTURER SHOULD BE RESPONSIBLE FOR THE REPAIR COST. THE FAILURE MILEAGE WAS 87,000 AND CURRENT MILEAGE WAS 125,350. UPDATED 06/09/09. *LJ THE CONSUMER STATED WHEN THE TRANSMISSION SHIFTED INTO 2ND AND SOMETIME THIRD GEAR, THE REAR END OF THE VEHICLE SOUNDED AS IF IT WERE ABOUT TO COME APART. THE ENGINE ALSO MADE A NOISE AS IF THE VALVES WERE CLICKING AND TAPPING. UPDATED 06/10/09.*JB
WAS COMING HOME FROM WORK, THE SERVICE 4WD DRIVE LIGHT CAME ON, SHUT THE VEHICLE OFF, THE LIGHT WOULD GO OFF FOR AWHILE, THEN COME BACK ON. AS SOON AS I GOT HOME I CALLED MY MECHANIC, HE SAID HE HAD WORKED ON SEVERAL 2000 SILVERADOS WITH THIS SAME PROBLEM LATELY. ALSO FOUND OUT THE NEIGHBOR HAD THE SAME PROBLEM WITH THE SAME …
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WAS COMING HOME FROM WORK, THE SERVICE 4WD DRIVE LIGHT CAME ON, SHUT THE VEHICLE OFF, THE LIGHT WOULD GO OFF FOR AWHILE, THEN COME BACK ON. AS SOON AS I GOT HOME I CALLED MY MECHANIC, HE SAID HE HAD WORKED ON SEVERAL 2000 SILVERADOS WITH THIS SAME PROBLEM LATELY. ALSO FOUND OUT THE NEIGHBOR HAD THE SAME PROBLEM WITH THE SAME VEHICLE (MODEL AND YEAR THE SAME). TURNS OUT IT IS A FAULTY SWITCH IN THE 4WD BUTTON IN THE DASH, WON'T FULLY ENGAGE, AND COULD SCATTER THE TRANSFER CASE. OUR MECHANIC HAS THE VEHICLE RIGHT NOW, HE REPLACED THE SWITCH IN THE DASH, AND ALSO PERFORMED THE RECALLS THAT WE FOUND IE: ABS & TAILGATE CABLES. *NM
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.
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