IllustrationDT*: THE CONTACT STATED WHILE PARKED ON AN INCLINE UNDER NORMAL ROAD CONDITIONS, THE EMERGENCY MECHANICAL BRAKE GRADUALLY FAILED TO HOLD THE VEHICLE. THE BRAKING SYSTEM WAS REAR WHEEL ANTI LOCK. THE VEHICLE WAS NOT EXAMINED OR REPAIRED.
2002 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2002 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
340–25K
4925–50K
7950–75K
10275–100K
124100–150K
55150K+
443 reports with mileage · 66 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. Review the 184 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 164 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 30 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
45 crash reports5 fire reports15 injury reports
What owners actually said
509 reportsPARKING DOES NOT HOLD VEHICLE IN PLACE WHEN FULLY ENGAGED. THE PARKING BRAKE PEDAL TRAVELS TO FLOOR WITH VERY LITTLE RESISTANCE. VEHICLE CONTINUES TO ROLL ON INCLINE IF TAKEN OUT OF GEAR WITH PARKING BRAKE FULLY ENGAGED. THE PARKING BRAKE HAS NEVER FUNCTIONED PROPERLY SINCE VEHICLE WAS PURCHASED BRAND NEW IN 2002 FROM FOLSOM LA…
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PARKING DOES NOT HOLD VEHICLE IN PLACE WHEN FULLY ENGAGED. THE PARKING BRAKE PEDAL TRAVELS TO FLOOR WITH VERY LITTLE RESISTANCE. VEHICLE CONTINUES TO ROLL ON INCLINE IF TAKEN OUT OF GEAR WITH PARKING BRAKE FULLY ENGAGED. THE PARKING BRAKE HAS NEVER FUNCTIONED PROPERLY SINCE VEHICLE WAS PURCHASED BRAND NEW IN 2002 FROM FOLSOM LAKE CHEVROLET, FOLSOM, CA. I'VE DISCUSSED THIS ISSUE WITH OTHER CHEVY SILVERADO TRUCK OWNERS WITH THE 4-WHEEL DISC BRAKING ABS SYSTEM AND THEY ALL HAVE HAD THE IDENTICAL PROBLEM I HAVE HAD. I AM DISAPPOINTED AND ALARMED THAT GM HAS NOT DONE THE RIGHT THING AND TAKEN CARE OF THIS EVER SO APPARENT PROBLEM.*JB
MY HUSBAND AND I PURCHASED A 2002 CHEVY SILVERADO IN THE FALL OF 2002. IN THE FALL OF 2004, WE NOTICED A KNOCKING NOISE IN THE STEERING COLUMN WHEN WE WOULD MAKE TURNS. WE HAD IT CHECKED OUT TO FIND THAT THE INTERMEDIATE STEERING SHAFT WAS WORN. AFTER WAITING 6 MONTHS TO FINALLY RECEIVE A PHONE CALL FROM THE BILL JACOBS DEAL…
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MY HUSBAND AND I PURCHASED A 2002 CHEVY SILVERADO IN THE FALL OF 2002. IN THE FALL OF 2004, WE NOTICED A KNOCKING NOISE IN THE STEERING COLUMN WHEN WE WOULD MAKE TURNS. WE HAD IT CHECKED OUT TO FIND THAT THE INTERMEDIATE STEERING SHAFT WAS WORN. AFTER WAITING 6 MONTHS TO FINALLY RECEIVE A PHONE CALL FROM THE BILL JACOBS DEALERSHIP IN JOLIET, I CALLED AND FOUND OUT THAT THE PART HAD BEEN THERE AND WE PROCEEDED TO HAVE THE REPLACEMENT MADE. I CALLED THE CHEVROLET CORPORATION AND FILED MY COMPLAINT. FOURTEEN MONTHS AFTER THE REPLACEMENT, THE "NEW GM PART" HAS WORN OUT! I WAS TOLD BY THE CHEV. CORP. THAT I WOULD HAVE TO SCHEDULE FOR ANOTHER TEST AND THEN THEY WOULD PROCEED AFTER I CONTACTED THEM WITH THE RESULTS FROM THE TEST. THE DEALERSHIP WANTS TO CHARGE US, THE CONSUMERS, $105.00 TO CHECK IT OUT. WE DO NOT FEEL WE SHOULD PAY OUT THIS MONEY WHEN WE KNOW EXACTLY WHAT THE PROBLEM IS. WHY SHOULD WE PAY FOR A FAULTY PART? THERE SHOULD BE A RECALL ON THIS PART. *NM
MY SUBMISSION PERTAINS TO CAMPAIGN ID NUMBER 05V37900. I WOULD LIKE TO INFORM YOUR OFFICE THAT THE SAME PROBLEM OCCURS ON GUAM AS WELL AS THE OTHER STATES YOU HAVE MENTIONED IN T THE RECALL REPORT. IT OCCURS IN BOTH MY VEHICLES 1999 GMC YUKON 2002 CHEVROLET SILV…
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MY SUBMISSION PERTAINS TO CAMPAIGN ID NUMBER 05V37900. I WOULD LIKE TO INFORM YOUR OFFICE THAT THE SAME PROBLEM OCCURS ON GUAM AS WELL AS THE OTHER STATES YOU HAVE MENTIONED IN T THE RECALL REPORT. IT OCCURS IN BOTH MY VEHICLES 1999 GMC YUKON 2002 CHEVROLET SILVERADO BOTH OF WHICH I BELIEVE HAVE RECALLS PERTAINING TO THE ANTI-LOCK BRAKE SYSTEM. *JB
DT*: THE CONTACT STATED WHILE TRAVELING 10 MPH IN NORMAL DRIVING CONDITIONS, BRAKE PRESSURE WAS APPLIED AND THERE WAS AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS EXPOSED TO EXCESSIVE ROAD SALTS. THE VEHICLE WAS TAKEN TO THE DEALER TO AWAIT INSPECTION. THERE WAS A NHTSA RECALL, # 05V379000, REGARDING SERVICE BRAKES, HYDRAU…
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DT*: THE CONTACT STATED WHILE TRAVELING 10 MPH IN NORMAL DRIVING CONDITIONS, BRAKE PRESSURE WAS APPLIED AND THERE WAS AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS EXPOSED TO EXCESSIVE ROAD SALTS. THE VEHICLE WAS TAKEN TO THE DEALER TO AWAIT INSPECTION. THERE WAS A NHTSA RECALL, # 05V379000, REGARDING SERVICE BRAKES, HYDRAULIC:ANTILOCK. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. THE MANUFACTURER WAS NOTIFIED.
DT*: THE CONTACT STATED AN OIL PUDDLE WAS NOTICED UNDER THE VEHICLE WHILE PARKED IN THE DRIVEWAY ON 3 OCCASIONS. THE DEALER WAS CONTACTED AND REPLACED THE OIL PAN GASKET. THE 2ND TIME AN OIL PUDDLE WAS FOUND, THE VEHICLE WAS TAKEN TO THE DEALER WHO FOUND AN OIL LEAK IN THE CRANKCASE SENSOR. THE DEALER REPLACED THE OIL PAN GAS…
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DT*: THE CONTACT STATED AN OIL PUDDLE WAS NOTICED UNDER THE VEHICLE WHILE PARKED IN THE DRIVEWAY ON 3 OCCASIONS. THE DEALER WAS CONTACTED AND REPLACED THE OIL PAN GASKET. THE 2ND TIME AN OIL PUDDLE WAS FOUND, THE VEHICLE WAS TAKEN TO THE DEALER WHO FOUND AN OIL LEAK IN THE CRANKCASE SENSOR. THE DEALER REPLACED THE OIL PAN GASKET & INSTALLED OIL PRESSURE UNIT ON 09/23/04. ON 09/05/06, THE VEHICLE WAS TAKEN IN FOR A RECALL, AND THE DEALER DETERMINED THAT THE OIL PAN GASKET NEEDED TO BE REPLACED A THIRD TIME.
IN REGARDS TO NHTSA CAMPAIGN ID NUMBER: 05V379000, I LIVE IN THE WESTERN MOUNTAINS OF VIRGINIA AND I AM HAVING THE IDENTICAL PROBLEMS ASSOCIATED WITH THE ABOVE MENTIONED RECALL. I DON'T THINK GM REALIZE THAT THERE IS A PART OF VIRGINIA, LIKE WEST VIRGINIA, THAT GETS A LOT OF CHLORIDE ON THE ROADS IN THE WINTER MONTHS. THE VEH…
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IN REGARDS TO NHTSA CAMPAIGN ID NUMBER: 05V379000, I LIVE IN THE WESTERN MOUNTAINS OF VIRGINIA AND I AM HAVING THE IDENTICAL PROBLEMS ASSOCIATED WITH THE ABOVE MENTIONED RECALL. I DON'T THINK GM REALIZE THAT THERE IS A PART OF VIRGINIA, LIKE WEST VIRGINIA, THAT GETS A LOT OF CHLORIDE ON THE ROADS IN THE WINTER MONTHS. THE VEHICLE HAS HAD A COUPLE OF NEAR ACCIDENTS DUE TO THE MALFUNCTION OF THE ABS SYSTEM. I HAVE REMOVED THE FUSE TO THE SYSTEM UNTIL I HAVE THE PROBLEM FIXED. *JB
DT*: THE CONTACT STATED WHILE THE VEHICLE WAS PARKED, THE ENGINE COMPARTMENT CAUGHT ON FIRE AND BURNED THE VEHICLE AND THE GARAGE DOORS. THE FIRE DEPARTMENT AND POLICE RESPONDED TO THE EMERGENCY CALL. THE FIRE DEPARTMENT DETERMINED THE FUSE BOX CAUSED THE FIRE. THE REPORTS WERE PREPARED BY BOTH THE FIRE DEPARTMENT AND POLICE DEP…
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DT*: THE CONTACT STATED WHILE THE VEHICLE WAS PARKED, THE ENGINE COMPARTMENT CAUGHT ON FIRE AND BURNED THE VEHICLE AND THE GARAGE DOORS. THE FIRE DEPARTMENT AND POLICE RESPONDED TO THE EMERGENCY CALL. THE FIRE DEPARTMENT DETERMINED THE FUSE BOX CAUSED THE FIRE. THE REPORTS WERE PREPARED BY BOTH THE FIRE DEPARTMENT AND POLICE DEPARTMENT. PICTURES WERE TAKEN AT THE SCENE. THE MANUFACTURER WAS NOTIFIED. UPDATED 9/27/2006 - *NM
DT*: THE CONTACT STATED THE VEHICLE BRAKE PADS HAD NORMAL WEAR PATTERNS BUT ON THE INSIDE OF BOTH ROTORS THE WEAR PATTERN SHOULD HAVE BEEN APPROXIMATELY 2 INCHES BUT WERE 3/4 INCHES. ALSO, THERE WAS CORROSION ON THE ROTOR WHICH CAUSED THE BRAKE PAD TO WEAR INCONSISTENTLY. THE HYDRAULIC DISC BRAKES HAD EXTENDED STOPPING DISTAN…
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
DT*: THE CONTACT STATED WHILE DRIVING 67 MPH OVER A BRIDGE WITH BRAKE PRESSURE APPLIED, THE BRAKES FAILED AND THE VEHICLE STRUCK THE BRIDGE. NO INJURIES WERE SUSTAINED. THE POLICE WERE ON THE SCENE AND A REPORT WAS TAKEN. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT INSPECTOR WHO WAS UNABLE TO DUPLICATE THE PROBLEM. UPDAT…
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DT*: THE CONTACT STATED WHILE DRIVING 67 MPH OVER A BRIDGE WITH BRAKE PRESSURE APPLIED, THE BRAKES FAILED AND THE VEHICLE STRUCK THE BRIDGE. NO INJURIES WERE SUSTAINED. THE POLICE WERE ON THE SCENE AND A REPORT WAS TAKEN. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT INSPECTOR WHO WAS UNABLE TO DUPLICATE THE PROBLEM. UPDATED 10/4/2006 - THE INSPECTOR DID FIND FOUR CODES STORED FOR THE BRAKES. GM EXPLAINED THAT THIS FAILURE WAS NOT THE RESULT OF THE OPEN RECALL 05V379000 WHICH HAD NOT YET BEEN PERFORMED ON THE VEHICLE. THE VEHICLE SUSTAINED DAMAGED TO THE LEFT SIDE OF THE CAB AND BOX. *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.