The contact owns a 2001 Chevrolet Silverado 1500. The contact stated that the check engine warning light, low fuel warning light, and the ABS warning light were illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage…
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The contact owns a 2001 Chevrolet Silverado 1500. The contact stated that the check engine warning light, low fuel warning light, and the ABS warning light were illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 200,000.
NHTSA ODI #11510964
138,000 miles · Nov 30, 2018
Engine
TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 25 MPH, THE VEHICLE STALLED AND THE SECURITY WARNING INDICATOR ILLUMINATED. THE CONTACT WAITED A FEW MINUTES AND THE VEHICLE RESTARTED NORMALLY. THE CONTACT ALSO STATED THAT THE FAILURE OCCURRED APPROXIMATELY TEN TIMES IN THE PAST EIGHT YEARS. THE …
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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 25 MPH, THE VEHICLE STALLED AND THE SECURITY WARNING INDICATOR ILLUMINATED. THE CONTACT WAITED A FEW MINUTES AND THE VEHICLE RESTARTED NORMALLY. THE CONTACT ALSO STATED THAT THE FAILURE OCCURRED APPROXIMATELY TEN TIMES IN THE PAST EIGHT YEARS. THE VEHICLE WAS TAKEN TO NIX AUTO CENTER INC. (700 S GEORGE NIGH EXPY, MCALESTER, OK 74501) IN JULY OF 2015 TO BE DIAGNOSED, BUT THE FAILURE COULD NOT BE DUPLICATED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED CASE NUMBER: 8-4865333314. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 138,000.
NHTSA ODI #11155232
106,500 miles · Dec 10, 2016
Engine
I AM THE ORIGINAL OWNER OF THIS VERY WELL MAINTAINED SILVERADO. AT JUST 100000 MILES I NOTICED MULTIPLE EXHAUST MANIFOLD BOLTS BROKEN, I HAD NOTICED A TICKING SOUND FOR AT LEAST 10000 MILES BUT COULD NOT LOCATE THE SOUND, AS IT TURNS OUT IT WAS THE BROKEN EXHAUST BOLTS. THESE BOLTS BREAK OFF AT VARYING LENGTHS INCLUDING BELOW F…
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I AM THE ORIGINAL OWNER OF THIS VERY WELL MAINTAINED SILVERADO. AT JUST 100000 MILES I NOTICED MULTIPLE EXHAUST MANIFOLD BOLTS BROKEN, I HAD NOTICED A TICKING SOUND FOR AT LEAST 10000 MILES BUT COULD NOT LOCATE THE SOUND, AS IT TURNS OUT IT WAS THE BROKEN EXHAUST BOLTS. THESE BOLTS BREAK OFF AT VARYING LENGTHS INCLUDING BELOW FLUSH WHICH IS EXTREMELY COSTLY TO HAVE REPLACED. AFTER A BRIEF INTERNET SEARCH I HAVE REALIZED THIS IS A MAJOR ISSUE WITH A MAJORITY OF THESE VEHICLES. THIS IS DEFINITELY AN EPA CONCERN BEING THE RAW GASSES ARE FLOWING OUT OF THE VEHICLE BYPASSING THE CATALYTIC CONVERTER AND BY NOT ALLOWING THESE VEHICLES TO PASS REGULATORY SMOG CERTIFICATIONS. THIS DEFECT COULD ALSO BE CONSIDERED A SAFETY CONCERN WITH THE POTENTIAL FOR THE EXHAUST GASSES TO GET INTO THE PASSENGER COMPARTMENT. I TRULY HOPE THAT YOU CAN INVESTIGATE THESE DEFECTIVE BOLTS AND AT THE VERY LEAST GET CHEVROLET TO ACKNOWLEDGE THE ISSUE AND HELP WITH A PORTION OF THE COST TO REPAIR.
NHTSA ODI #10934452
Mileage unknown · Oct 11, 2016
Air BagsElectrical SystemElectronic Stability Control (esc)
EVAPORATED SYSTEM.
NHTSA ODI #10915372
7,000 miles · Jun 21, 2016
Engine
TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 70 MPH, THE VEHICLE LOST POWER. THE CONTACT HAD TO ROLL THE VEHICLE A MILE DOWN THE ROAD. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE DISTRIBUTOR WAS FULL OF WATER, WHICH BURNED THE COIL AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED…
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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 70 MPH, THE VEHICLE LOST POWER. THE CONTACT HAD TO ROLL THE VEHICLE A MILE DOWN THE ROAD. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE DISTRIBUTOR WAS FULL OF WATER, WHICH BURNED THE COIL AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED NUMEROUS TIMES. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 7,000.
NHTSA ODI #10875712
104,000 miles · Aug 27, 2014
Engine
TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE VEHICLE STALLED ON SEVERAL OCCASION WITHOUT WARNING. THE CONTACT ALSO STATED THAT AFTER NUMEROUS OCCASIONS THE VEHICLE WAS ABLE TO RESTART. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAI…
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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE VEHICLE STALLED ON SEVERAL OCCASION WITHOUT WARNING. THE CONTACT ALSO STATED THAT AFTER NUMEROUS OCCASIONS THE VEHICLE WAS ABLE TO RESTART. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 104,000.
NHTSA ODI #10628809
120,000 miles · Jul 17, 2014
Electronic Stability Control (esc)EngineSeat Belts
THE VEHICLE WOULD EITHER STALL WHILE DRIVING VARIOUS SPEEDS OR FAIL TO START. I WAS DRIVING APPROXIMATELY 55 MPH WHEN HE NOTICED THAT THE FUEL GAUGE DISPLAYED EMPTY WHICH WAS INACCURATE; HOWEVER, THE VEHICLE SUDDENLY STALLED, COASTED TO THE SHOULDER. CAR WOULD NOT CRANK AT FIRST BUT THEN STARTED, THIS HAPPENED SEVERAL TIMES, T…
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THE VEHICLE WOULD EITHER STALL WHILE DRIVING VARIOUS SPEEDS OR FAIL TO START. I WAS DRIVING APPROXIMATELY 55 MPH WHEN HE NOTICED THAT THE FUEL GAUGE DISPLAYED EMPTY WHICH WAS INACCURATE; HOWEVER, THE VEHICLE SUDDENLY STALLED, COASTED TO THE SHOULDER. CAR WOULD NOT CRANK AT FIRST BUT THEN STARTED, THIS HAPPENED SEVERAL TIMES, THE VEHICLE WOULD SPORADICALLY BECOME HESITANT TO START. THE VEHICLE WOULD ALSO STALL PERIODICALLY WITHOUT WARNING. THE OTHER COMPONENTS, SUCH AS THE RADIO, WERE STILL OPERABLE. THE VEHICLE WOULD SPORADICALLY BECOME HESITANT TO START. THE VEHICLE WOULD ALSO STALL PERIODICALLY WITHOUT WARNING. AUTORIDE SUSPENSION, NOT WORKING. HARSH RIDE WITHOUT SHOCK DAMPERING. FRONT PASSENGER SEATBELT FREQUENTLY LOCKS UP AND WILL NOT EXTEND ENOUGH TO SECURE A PERSON. SEAT BELT OFTEN LOCKS UP WHEN PASSENGER IS BELTED IN AND PASSENGER CANNOT MOVE. *TR
NHTSA ODI #10611266
240,000 miles · Apr 11, 2014
Engine
WENT TO CHANGE EXHAUST MANIFOLD AND GASKET WHEN NUMBER ONE CYLINDER MANIFOLD BOLT BROKE OFF UNDER MINIMAL PRESSURE. BOLT BROKE OFF FLUSH/RECESSED TO GASKET SURFACE OF CYLINDER HEAD. INSPECTED BOLT AND CAME TO THE CONCLUSION THAT THE BOLT WAS FRACTURED WHEN IT WAS INSTALLED DURING VEHICLE ASSEMBLY. SPOKE WITH DEALERSHIP AND REPRE…
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WENT TO CHANGE EXHAUST MANIFOLD AND GASKET WHEN NUMBER ONE CYLINDER MANIFOLD BOLT BROKE OFF UNDER MINIMAL PRESSURE. BOLT BROKE OFF FLUSH/RECESSED TO GASKET SURFACE OF CYLINDER HEAD. INSPECTED BOLT AND CAME TO THE CONCLUSION THAT THE BOLT WAS FRACTURED WHEN IT WAS INSTALLED DURING VEHICLE ASSEMBLY. SPOKE WITH DEALERSHIP AND REPRESENTATIVE PULLED UP VIN HISTORY IN COMPUTER. HISTORY SHOWED AN ERROR WITH NUMBER ONE CYLINDER DURING VEHICLE ASSEMBLY AND DEALER SERVICE REPRESENTATIVE STATED "THAT MOTOR SHOULD HAVE NEVER MADE IT OUT OF THE ASSEMBLY PLANT." NO HELP FROM DEALERSHIP TO REMOVE BROKEN BOLT SO EXHAUST LEAK CAN BE REPAIRED. DEALERSHIP ALSO NOTICED THAT THE NUMBER ONE SPARK PLUG ON THE SAME CYLINDER WAS STICKING OUT FURTHER THAN THE OTHER PLUGS. COME TO FIND OUT THAT THE SPARK PLUG HOLE HAD NOT BEEN THREADED ALL THE WAY INTO THE CYLINDER. NO HELP FROM GM ON THAT ONE EITHER. HAD TO BUY A TAP AND FINISH THREADING THE HOLE MYSELF AT HOME. RESEARCHED BROKEN BOLT EXTRACTION FOR SILVERADO EXHAUST MANIFOLD AND HAVE FOUND THAT THIS IS AN EPIDEMIC AND THERE ARE MULTIPLE VIDEOS ON YOUTUBE ABOUT THIS ISSUE. *JS
NHTSA ODI #10579180
190,000 miles · Apr 7, 2014
Engine
TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT MENTIONED THAT THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE…
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TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT MENTIONED THAT THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 190,000 AND THE CURRENT MILEAGE WAS 198,000.
NHTSA ODI #10578029
121,052 miles · Mar 7, 2014
Engine
LOSS OF COOLANT NO VISIBLE LEAK, COOLANT IS SEEPING INTO HEADS DUE TO FAULTY CASTECH HEADS USED BY GM IN THE MANUFACTURING OF THESE TRUCKS. *TR
NHTSA ODI #10567883
Official recalls
0
No 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
2
EA04011 · 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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