IllustrationFATAL COLLISION OCCURRED ON 8/20/15 ON SR 126E IN LANE COUNTY, OREGON. VEHICLE DRIFTED OFF ROADWAY AND SUSTAINED FRONTAL IMPACT WITH LARGE TREE RESULTING IN ENGINE FIRE. THIS IS THE THIRD OF THREE CHEV SILVERADOS THAT HAVE BEEN INVOLVED IN FRONTAL IMPACTS THIS YEAR THAT HAS RESULTED IN A FIRE
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
Electrical System complaints
20 reportsDRIVING AT APPROXIMATELY 30 MPH, STARTED TO MAKE RIGHT TURN AND ENGINE SUDDENLY SHUT OFF AND JUST AS QUICKLY KICK STARTED. LATER SAME DAY ENGINE SHUT OFF IN PARKING LOT, BUT I WAS ABLE TO IMMEDIATELY RESTART IT. THE NEXT DAY ENGINE DID THE SAME THING (SHUT OFF) BUT AGAIN, I WAS ABLE TO IMMEDIATELY RESTART IT. *TR
MY CAR HAS ONLY 50,400 MILES-ITS A 2009, YESTERDAY WHILE DRIVING I FELT A JOLTING IN THE REAR END OF THE TRUCK AND IT CONTINUED EACH TIME I STOPPED AND STARTED DRIVING AGAIN. I TOOK IT TO MY MECHANIC WHO INFORMED ME IT WAS A TRANSMISSION SHIFTING PROBLEM. I WENT ON LINE AND DISCOVERED THAT THIS ISSUE HAS BEEN RELATED TO OTHER SI…
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MY CAR HAS ONLY 50,400 MILES-ITS A 2009, YESTERDAY WHILE DRIVING I FELT A JOLTING IN THE REAR END OF THE TRUCK AND IT CONTINUED EACH TIME I STOPPED AND STARTED DRIVING AGAIN. I TOOK IT TO MY MECHANIC WHO INFORMED ME IT WAS A TRANSMISSION SHIFTING PROBLEM. I WENT ON LINE AND DISCOVERED THAT THIS ISSUE HAS BEEN RELATED TO OTHER SILVERADO TRUCKS AS A RECALL DUE TO A SHIFT CABLE ADJUSTER PROBLEM WHICH CAN LEAD TO A ROLL AWAY. *JS
WHILE DRIVING ONE DAY, I NOTICED THE TOW/HAUL BUTTON DIDN'T WORK, THEN THE GAS GAUGE. EVENTUALLY, WITHIN A YEAR, ALL THE GAUGES STOPPED WORKING. SOMETIMES THEY GO ON AND LATER OFF AGAIN. I DON'T KNOW IF THEY ARE EVEN ACCURATE TO ANY DEGREE WHEN THEY DO COME ON. ABOUT A YEAR AGO THE TRUCK SHUT OFF WHILE I WAS DRIVING BUT AFTER I …
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WHILE DRIVING ONE DAY, I NOTICED THE TOW/HAUL BUTTON DIDN'T WORK, THEN THE GAS GAUGE. EVENTUALLY, WITHIN A YEAR, ALL THE GAUGES STOPPED WORKING. SOMETIMES THEY GO ON AND LATER OFF AGAIN. I DON'T KNOW IF THEY ARE EVEN ACCURATE TO ANY DEGREE WHEN THEY DO COME ON. ABOUT A YEAR AGO THE TRUCK SHUT OFF WHILE I WAS DRIVING BUT AFTER I WAS SAFELY OFF THE ROAD IT STARTED AGAIN. THAT HAS NOT HAPPENED SINCE. I HAVE TRIED TO FIND THE PROBLEM BUT AS OF NOW I HAVE BEEN UNSUCCESSFUL. MYSELF OR MY MECHANIC, WHO WORKS FOR THE COUNTY AND IS VERY CAPABLE. I KNOW MANY PEOPLE WITH THE SAME OR SIMILAR VEHICLES AND THIS SEEMS TO BE QUITE COMMON. I ALSO OWN A 2003 SUBURBAN AND THESE THINGS ARE STARTING WITH THAT TRUCK TOO. THESE HAVE BEEN GOOD TRUCKS BUT I WANT TO BE SAFE AND NOT HAVE TO GET RID OF MY VEHICLES. ABS,WIPERS,DEFROST,HVAC, AND ALL GAUGES ARE AFFECTED. I HAVE REPLACED HVAC CONTROLS AND DASH GAUGES AND OTHER PARTS BUT STILL THE SAME PROBLEMS. SUCH AS WHATEVER HVAC CONTROLS THAT I PUT IN IT STILL ONLY WORKS ON HIGH. WATCH OUT IF YOUR SPEEDOMETER ACTS STRANGE. *TR
WHILE PULLING INTO MY DRIVEWAY, THE BRAKE PEDAL STATED CHATTERING LIKE THE ANTI-LOCK BRAKES WERE ACTIVATING. THE ABS LIGHT CAME ON INTERMITTENTLY AND WHEN THE TRUCK WAS BEING PARKED IN FRONT OF THE GARAGE IT WOULD NOT STOP AND WENT THROUGH THE GARAGE DOOR. *TR
ABS AND PARKING BRAKE LIGHTS WILL NOT GO OFF. DEALER HAS TOLD ME THAT THE ANTI-LOCK BRAKES WILL NOT WORK IN THIS CONDITION. STATE OF COLORADO WILL NOT ALLOW MY VEHICLE TO PASS THE REQUIRED EMISSIONS TEST WITH THE VEHICLE IN THIS CONDITION. CHECKED IF THERE WAS A RECALL AND THERE WAS BUT MY STATE, COLORADO IS NOT INCLUDED IN T…
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ABS AND PARKING BRAKE LIGHTS WILL NOT GO OFF. DEALER HAS TOLD ME THAT THE ANTI-LOCK BRAKES WILL NOT WORK IN THIS CONDITION. STATE OF COLORADO WILL NOT ALLOW MY VEHICLE TO PASS THE REQUIRED EMISSIONS TEST WITH THE VEHICLE IN THIS CONDITION. CHECKED IF THERE WAS A RECALL AND THERE WAS BUT MY STATE, COLORADO IS NOT INCLUDED IN THIS RECALL (NHTSA CAMPAIGN ID NUMBER: 05V39000). *TR
MY TRUCK HAS A TOW/HAUL FEATURE WHERE YOU PUSH A BUTTON TO TURN THE FEATURE ON AND OFF. I BOUGHT A TRAVEL TRAILER, I PUSHED THE BUTTON AND IT DIDN'T COME ON. I RESEARCHED THE PROBLEM AND FOUND MANY OTHER COMPLAINTS WITH THE SAME PROBLEM. I FOUND OUT THAT THERE IS A ORANGE WIRE IN THE STEERING COLUMN THAT TEARS. EVERY PERSON THA…
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MY TRUCK HAS A TOW/HAUL FEATURE WHERE YOU PUSH A BUTTON TO TURN THE FEATURE ON AND OFF. I BOUGHT A TRAVEL TRAILER, I PUSHED THE BUTTON AND IT DIDN'T COME ON. I RESEARCHED THE PROBLEM AND FOUND MANY OTHER COMPLAINTS WITH THE SAME PROBLEM. I FOUND OUT THAT THERE IS A ORANGE WIRE IN THE STEERING COLUMN THAT TEARS. EVERY PERSON THAT I SAW WITH THE PROBLEM HAD THAT ORANGE WIRE BROKEN, I OPENED UP MY STEERING COLUMN AND SURE ENOUGH THAT WAS THE PROBLEM. THERE IS A BRACE WHERE THE WIRE FITS IN. THE BRACE HAD CUT THE WIRE. I TRIED TO FIX IT BUT THE WIRE IS SO SMALL I COULDN'T. *TR
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE SECURITY SYSTEM FAILED CAUSING THE VEHICLE NOT TO START. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE MAIN WIRING SYSTEM WAS REPAIRED. THE CONTACT STATED THAT THE REPAIR CAUSED THE HEADLIGHT AND RADIO TO BECOME INOPERABLE. THE DEALER STATED THAT T…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE SECURITY SYSTEM FAILED CAUSING THE VEHICLE NOT TO START. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE MAIN WIRING SYSTEM WAS REPAIRED. THE CONTACT STATED THAT THE REPAIR CAUSED THE HEADLIGHT AND RADIO TO BECOME INOPERABLE. THE DEALER STATED THAT THE CONTACT WOULD HAVE TO PAY FOR A DIAGNOSTIC TEST FOR THE HEADLIGHTS AND RADIO FAILURE BEFORE BEING REPAIRED. THE HEADLIGHT AND RADIO WERE NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 119,694.
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THE CODE FOR THE BODY CONTROL MODULE WAS MISSING AND CAUSING THE VEHICLE TO ENGAGE THE 4-WHEEL DRIVE. THE VEHICLE WAS EXTREMELY DIFFICULT TO CONTROL WHEN THE FAILURE WOULD OCCUR. THE VEHICLE WAS NOT INSPECTED OR REPAIRED. THE FAILURE MILEAGE WAS 114,000 AN…
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TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 1500. THE CONTACT STATED THE CODE FOR THE BODY CONTROL MODULE WAS MISSING AND CAUSING THE VEHICLE TO ENGAGE THE 4-WHEEL DRIVE. THE VEHICLE WAS EXTREMELY DIFFICULT TO CONTROL WHEN THE FAILURE WOULD OCCUR. THE VEHICLE WAS NOT INSPECTED OR REPAIRED. THE FAILURE MILEAGE WAS 114,000 AND THE CURRENT MILEAGE WAS 114,446.
AFTER THE TRUCK WAS TURNED OFF AND IN PARK OUR SON (WHO IS UNDER TWO) WAS ABLE TO SHIFT INTO NEUTRAL AND OTHER GEARS. THE TRUCK ROLLED IN THE GARAGE. THIS OCCURRED WHEN THE KEY IS BETWEEN THE OFF POSITION AND ACCESSORY POSITION. *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.