IllustrationTHE FUEL LINES RUST AWAY AND START LEAKING FUEL BADLY. ALL LINES HAVE TO BE REPLACED. THE RUST ON THIS TRUCK IS UNBELIEVABLE. GM WILL NOT STAND BEHIND THE PRODUCT. THE ROCKER PANELS ALL RUSTED OUT AS WELL. THE FRAME IS RUSTING OUT. THESE TRUCK ARE JUST RUST BUCKETS
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 reports1ST INCIDENT - VEHICLE IN MOTION AT LOW SPEED, ANTI-LOCK BRAKES ACTIVATE AND PREVENT VEHICLE FROM STOPPING, RAN INTO GARAGE DOOR 2ND INCIDENT - AFTER 1ST INCIDENT, CAR SHOP REPLACED ABS MODULE. SAME SITUATION. VEHICLE IN MOTION AT LOW SPEED, ANTI-LOCK BRAKES ACTIVATE AND PREVENT VEHICLE FROM STOPPING, RAN INTO CAR IN PARKING …
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1ST INCIDENT - VEHICLE IN MOTION AT LOW SPEED, ANTI-LOCK BRAKES ACTIVATE AND PREVENT VEHICLE FROM STOPPING, RAN INTO GARAGE DOOR 2ND INCIDENT - AFTER 1ST INCIDENT, CAR SHOP REPLACED ABS MODULE. SAME SITUATION. VEHICLE IN MOTION AT LOW SPEED, ANTI-LOCK BRAKES ACTIVATE AND PREVENT VEHICLE FROM STOPPING, RAN INTO CAR IN PARKING LOT.
ONE OF THE REAR BRAKES STOPPED WORKING WHILE DRIVING.
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING AT 2 MPH, THE LOW SPEED ABS ENGAGEMENT INCREASED THE STOPPING DISTANCE AND THE CONTACT COULD NOT STOP THE VEHICLE. THE CONTACT ALMOST CRASHED INTO THE GARAGE DOOR BUT WAS ABLE TO STOP THE VEHICLE BEFORE A CRASH OCCURRED. THE CONTACT RELEA…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING AT 2 MPH, THE LOW SPEED ABS ENGAGEMENT INCREASED THE STOPPING DISTANCE AND THE CONTACT COULD NOT STOP THE VEHICLE. THE CONTACT ALMOST CRASHED INTO THE GARAGE DOOR BUT WAS ABLE TO STOP THE VEHICLE BEFORE A CRASH OCCURRED. THE CONTACT RELEASED THE BRAKE PEDAL AND RE-APPLIED PRESSURE TO THE PEDAL IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 75,652. UPDATED 07/12/16*LJ
I PURCHASED THE TRUCK FROM THE DEALER, WITH 230,000 MILES ON SHORTLY AFTER PURCHASE AS I BRAKED TO STOP THE PEDDLE WOULD STIFFEN AND PURR... AND THE VEHICLE WOULD NOT STOP, RUNNING INTERSECTIONS AND PARKING SPOTS. CAUSING NEAR ACCIDENTS. II LEARNED THIS WAS RELATED TO BRAKE ANTILOCK SYSTEM. DEALER SAID THEY DONE THE RECALL PROCE…
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I PURCHASED THE TRUCK FROM THE DEALER, WITH 230,000 MILES ON SHORTLY AFTER PURCHASE AS I BRAKED TO STOP THE PEDDLE WOULD STIFFEN AND PURR... AND THE VEHICLE WOULD NOT STOP, RUNNING INTERSECTIONS AND PARKING SPOTS. CAUSING NEAR ACCIDENTS. II LEARNED THIS WAS RELATED TO BRAKE ANTILOCK SYSTEM. DEALER SAID THEY DONE THE RECALL PROCEDURE TO CLEAN SENSORS AND AVOIDED ANY FURTHER CONCERNE EXPRESSED. I CHECKED WITH OTHER DEALERS WHO HAD THE SAME DENIAL REACTION, THE INITIAL DEALER HAD DONE CHECKS TO ALL CHASIS AND COMPONANT CHECKS, I NOTICED A MILD GROWL WHEN IN FOUR WHEEL DRIVE BUT DROVE WELL OTHERWISE. I INSPECTED THE WHEEL SENSORS AND THEY WERE CLEAN I LEARNED THE RELUCTOR RING WHICH TRIGGERS THE SENSORS ARE WITHIN THE FRONT WHEEL BEARINGS I HAD ONE OIL SERVICE DONE BY ANOTHER GARAGE WHO DID A 21 POINT CHECK BUT NEGLECTED TO TELL ME OF THE APPARENT WEAR. AFTER ABOUT FIFTEEN MONTHS THE LEFT FRONT WHEEL BEARING BEGAN TO FAIL WHILE DRIVING CAUSING A EXTREME GROWL, I THEN HAD IT CHECKED BY A SERVICE GARAGE WHO CLEARLY IDENIFIED THE EVIDENT WEAR ON BOTH FRONT WHEEL BEARINGS, I HAD THE BEARINGS BOTH CHANGED ALONG WITH A LOWER BALL JOINT ALONG WITH BOTH FRONT AXLE SHAFTS, DUE TO MILD LEAKING BOOTS. THIS THEM STOPPED THE HARD PEDDLE AND BRAKE FAILURE WHEN STOPPING. THE DEALER KNEW OF THE WEAR AND IGNORED THE DANGER. THE DEALER SHOULD NOT BE ALLOWED TO SELL A VEHICLE IN THIS CONDITION . THE TRUCK DOES DRIVE WELL NOW. BUT I STILL HAVE A VERY MILD GROWL IN THE LEFT FRONT,BUT WITH THE AXLES NEW THE NOISE IS COMING FROM THE DRIVE CASE, ONLY WHEN IN FOUR WHEEL DRIVE. ( WHILE THE BRAKE PROBLEM EXISTED I ADJUSTED MY DRIVING PRACTICE AND LIMITED MY USE OF VEHICLE.)
EXCESSIVE CORROSION ON BRAKE AND FUEL LINES. HAD A METAL LINE BLOW OUT NEAR REAR DRIVER SIDE WHEEL CAUSING DRIVER TO HAVE TO USE TRANSMISSION AND HOLDING PARKING BRAKE RELEASE HANDLE WHILE USING E-BRAKE WHILE STEERING WITH ONE HAND. UPON SPLICING IN A SECTION OF REPLACEMENT TUBING, I NOTICED THE FUEL RETURN LINE FROM THE ENGINE …
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EXCESSIVE CORROSION ON BRAKE AND FUEL LINES. HAD A METAL LINE BLOW OUT NEAR REAR DRIVER SIDE WHEEL CAUSING DRIVER TO HAVE TO USE TRANSMISSION AND HOLDING PARKING BRAKE RELEASE HANDLE WHILE USING E-BRAKE WHILE STEERING WITH ONE HAND. UPON SPLICING IN A SECTION OF REPLACEMENT TUBING, I NOTICED THE FUEL RETURN LINE FROM THE ENGINE TO THE TANK IS CORRODED SEVERELY TOO. I HAD A SECTION OF FUEL LINE FALL APART UPON REPLACING A FUEL FILTER AND SPLICED IN A RUBBER FUEL HOSE WITH CLAMPS TO GET A FUEL FILTER REPLACED. WHEN THE FUEL LINES RUPTURE, THERE IS A CHANCE OF FIRE FROM THE EXHAUST OR HOT BRAKE DRUMS. WAS ADVISED BY MECHANIC THAT I NEED TO SELL TRUCK AS IT HAS 18-24 MONTHS LEFT WITHOUT PROPER AND EXPENSIVE REPAIRS BEING MADE. RARELY GETS UNDERBODY WASH AS A QUALITY WASH IS FAR AWAY AND WAS ADVISED THAT THE RUST IS PROBABLY HOLDING IT TOGETHER AND ADVISED NOT TO KNOCK OFF ANY MORE RUST AS IT WOULD ACCELERATE FURTHER CORROSION. WAS ADVISED A WASTE OF TIME TO USE RUST REFORMER OR UNDERCOATING. I NOTICED THIS STATIONARY AS THE VEVICLE WAS MAKING SQUEAKING SOUNDS FROM THE REAR AXLE HUB ON DRIVER SIDE (SAME LINE THAT BLEW) AND FIGURED HANGING CALIPER SO I DID A FULL BRAKE PEDAL PRESS AND FELT THE PEDAL GET SPONGY AND DROP ANOTHER 1" TOWARD FLOOR. I OPENED DOOR, HUNG OUT LOOKING UNDER TRUCK AND PRESSED PEDAL AGAIN TO SEE FLUID POURING FROM REAR AXLE AREA. DROVE IT 30 MILES WITH NO SERVICE BRAKES TO GET TO THE GARAGE USING ONLY E-BRAKE AND 3,2,1 AND NEUTRAL RANGE OF TRANSMISSION TO BE ABLE TO STOP IF NEEDED. ALSO WAS ADVISED ABOUT FUEL TANK STRAP AND THAT I WOULD NEED A FLAME CUTTER TO CHANGE THE FUEL PUMP AS TRUCK BED BOLTS LOOKED HORRIBLE OR WOULD NEED TO CUT TANK STRAPS DEPENDING ON HOW MUCH FUEL IS IN THE TANK. THE "ANNUAL UNDERBODY WASH" MOST OWNERS MANUALS RECOMMEND IS INSUFFICIENT TO PREVENT THIS PROBLEM.
CORROSION AND FAILURE OF METAL BRAKE LINE DIRECTLY BELOW LEFT FRONT DOOR. VERY POOR DESIGN AS TUBES ARE BEHIND A DOUBLE LOOP OF CHASSIS WIRING CAUSING BUILDUP OF DIRT AND MOISTURE RESULTING IN PREMATURE FAILURE. FAILED WHEN BACKING OUT OF THE DRIVEWAY AND THANK GOD I WAS NOT ON THE ROAD
4 BROKEN EXHAUST MANIFOLD BOLTS
WHILE APPROACHING A STOP SIGN I APPLIED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. NO WARNING OF ANY KIND. LUCKY FOR ME NO TRAFFIC WAS COMING.
BRAKE LINES RUSTD OUT. MAKING MY TRUCK LOOSE BRAKE FLUID AND HAD TO BE REPLACE,. SERIOUS PROBLEM, LUCKY I DID NO HAVE AN ACCIDENT. RUST ETC, ALL OVER THE REST OF THE BRAKE SYSTEM, VERY COSTLY, $$$$$, I WAS DRIVING DOWN A STREET SLOWLY.
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.