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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 →

When problems were reported

Mileage at the reported incident

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 reports
88,000 miles · Jul 11, 2013
Service BrakesCrash

2002 CHEVY SILVERADO 4X4 EXT CAB TRUCK WAS RECALLED IN 2005 FOR ANTI LOCK BRAKE ACTIVATION AT LOW SPEEDS THE DEALER CLEANED PUT ON ANTI CORROSIVE MATERIAL ON SENSOR (AFTER TRUCK WAS IN A ACCIDENT I GOT THE NOTICE IN THE MAIL 3 DAYS LATER) NOW 7/11/2013 ITS HAPPENING AGAIN, THEY WILL NOT FIX IT AGAIN ONLY ONCE, COST FOR NEW HUB A…

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2002 CHEVY SILVERADO 4X4 EXT CAB TRUCK WAS RECALLED IN 2005 FOR ANTI LOCK BRAKE ACTIVATION AT LOW SPEEDS THE DEALER CLEANED PUT ON ANTI CORROSIVE MATERIAL ON SENSOR (AFTER TRUCK WAS IN A ACCIDENT I GOT THE NOTICE IN THE MAIL 3 DAYS LATER) NOW 7/11/2013 ITS HAPPENING AGAIN, THEY WILL NOT FIX IT AGAIN ONLY ONCE, COST FOR NEW HUB AND SENSOR I ABOUT $700 PER SIDE $1,400 TOTAL TO FIX PROBLEM, THIS IS A SAFETY ISSUE GM, CHEVY SHOULD FIX NOT PUT A BAND AID ON THE FIX. ALSO THE CHEVY DEALER SAID TO ME ITS A LIFETIME WARRANTY ON PARTS AND LABOR WOW THAT'S GREAT AT MY EXPENSE. WHY DIDN'T THEY PUT THE LIFETIME WARRANTY WHEN ITS NEW, NOW I HAVE TO PAY TWICE SOME DEAL. *TR

NHTSA ODI #10524472

111,238 miles · Jul 3, 2013
Fuel System, GasolineService Brakes

LOST MOST OF MY BRAKING AS A RESULT OF HEAVY RUST ON BRAKE LINES AND OTHER BRAKE PARTS. MECHANIC SAID THIS WAS WAY MORE RUST THAN THERE SHOULD OF BEEN IN THESE AREAS. *TR

NHTSA ODI #10523032

Mileage unknown · Jul 1, 2013
Engine

FRONT MANIFOLD BOLT HAS BROKEN ON DRIVER SIDE CAUSING A LEAK, RESEARCH HAS SHOWN THAT THIS IS A BIG PROBLEM WITH GM PICKUPS MADE DURING THESE YEARS. IT IS A VERY COSTLY REPAIR AND THERE ARE LITERALLY THOUSANDS OF OTHER GM OWNERS WITH THE SAME PROBLEM. THERE SHOULD BE A RECALL ON THIS DEFECTIVE PART. IT IS A DANGEROUS PROBLEM, LE…

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FRONT MANIFOLD BOLT HAS BROKEN ON DRIVER SIDE CAUSING A LEAK, RESEARCH HAS SHOWN THAT THIS IS A BIG PROBLEM WITH GM PICKUPS MADE DURING THESE YEARS. IT IS A VERY COSTLY REPAIR AND THERE ARE LITERALLY THOUSANDS OF OTHER GM OWNERS WITH THE SAME PROBLEM. THERE SHOULD BE A RECALL ON THIS DEFECTIVE PART. IT IS A DANGEROUS PROBLEM, LEAKING CARBON MONOXIDE THRU THE AND INTO THE DRIVER AND PASSENGER AREA. THERE SHOULD BE A RECALL BY GM TO FIX THIS PROBLEM. *TR

NHTSA ODI #10522758

91,000 miles · Jun 25, 2013
Service BrakesService Brakes, Hydraulic

TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 5 MPH, THE BRAKES WERE APPLIED AND THE ANTI LOCK BRAKE SYSTEM ENGAGED INDEPENDENTLY. THE CONTACT MENTIONED THAT THE FAILURE RECURRED ON AN INTERMITTENT BASIS. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING. THE…

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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 5 MPH, THE BRAKES WERE APPLIED AND THE ANTI LOCK BRAKE SYSTEM ENGAGED INDEPENDENTLY. THE CONTACT MENTIONED THAT THE FAILURE RECURRED ON AN INTERMITTENT BASIS. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE VEHICLE WAS REPAIRED PREVIOUSLY UNDER NHTSA CAMPAIGN NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC). THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 91,000 AND THE CURRENT MILEAGE WAS 93,000. *TR

NHTSA ODI #10521758

82,766 miles · Jun 25, 2013
Service Brakes

WENT TO STOP FOR A RED LIGHT AND THE DRIVE SIDE REAR BRAKE LINE BLEW,I WENT THROUGH THE INTERSECTION WITH NO BRAKES. THAT WAS A THRILL. *TR

NHTSA ODI #10521744

Mileage unknown · Jun 21, 2013
Engine And Engine Cooling

RECENTLY TOOK CAR FOR BALANCING AND ROTATION AT NTB. THEY SAW OIL DIP WAS DRY AND WAS LOW OIL LEVEL. TOOK IT BACK TO SHOP WHO DID OIL CHANGE ONE MONTH AGO. THEY SAID OIL IS VAPORIZING. I DIDN'T UNDERSTAND HOW. TECH SHOWED ME BLACK SLUGGISH INSIDE TAIL PIPE SAYING THAT COULD BE BAD CATALYTIC CONVERTER AND IT COULD HAVE CAUSED…

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RECENTLY TOOK CAR FOR BALANCING AND ROTATION AT NTB. THEY SAW OIL DIP WAS DRY AND WAS LOW OIL LEVEL. TOOK IT BACK TO SHOP WHO DID OIL CHANGE ONE MONTH AGO. THEY SAID OIL IS VAPORIZING. I DIDN'T UNDERSTAND HOW. TECH SHOWED ME BLACK SLUGGISH INSIDE TAIL PIPE SAYING THAT COULD BE BAD CATALYTIC CONVERTER AND IT COULD HAVE CAUSED BECAUSE OF OIL BURNING INSIDE EXHAUST. I RESEARCHED ONLINE ABOUT THIS ISSUE AND DID FIND OUT THAT ALL GM & CHEVY OWNER HAVING THIS ISSUE WITH V8 ENGINE ON ANY LITER. SHOP REPLACED KNOCK SENSOR TWICE BUT STILL SERVICE ENGINE LIGHT CAME BACK ON. IT IS VERY EXPENSIVE REPAIR COST TO REPLACE BROKEN BOLTS ON MANIFOLD. I HOPE MANUFACTURE WILL FIX THIS ISSUE AS SOON AS POSSIBLE SO THAT CONSUMER DON'T HAVE TO GO THROUGH NOT PASSING STATE INSPECTION. *TR

NHTSA ODI #10520986

Mileage unknown · Jun 17, 2013
Service Brakes

SOMETIMES WHEN I APPLY THE BRAKES AT LOW SPEED 5 -10 MPH ON DRY PAVEMENT THE ABS WILL START TO CYCLE MAKING THE STOPPING DISTANCE EXTREMELY LONG. *TR

NHTSA ODI #10520223

Mileage unknown · Jun 17, 2013
Service Brakes

THE EMERGENCY BRAKES HAVE NEVER WORKED, THE PEDAL GOES TO THE FLOOR AND WILL NOT HOLD THE TRUCK. I HAVE A 4 WHEEL DRIVE WITH AN AUTOMATIC TRANSMISSION. WHEN ON AN INCLINE IN PARK THE TRUCK WILL SOMETIMES START TO ROLL DOWN HILL. *TR

NHTSA ODI #10520221

53,817 miles · Jun 7, 2013
Service Brakes

I HAD TRAVELED APPROXIMATELY 1/2 MILE FROM MY HOUSE WHEN I APPLIED THE BRAKES TO SLOW DOWN. THE PEDAL HAD BARELY ANY PRESSURE AS I APPLIED THE BRAKE, FORTUNATELY I HAD A LITTLE BIT OF PRESSURE AND I WAS ABLE TO BRING THE VEHICLE TO A STOP, BY A COMBINATION OF DOWNSHIFTING AND USING WHAT LITTLE BRAKES THAT I HAD LEFT. THE BRAKE …

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I HAD TRAVELED APPROXIMATELY 1/2 MILE FROM MY HOUSE WHEN I APPLIED THE BRAKES TO SLOW DOWN. THE PEDAL HAD BARELY ANY PRESSURE AS I APPLIED THE BRAKE, FORTUNATELY I HAD A LITTLE BIT OF PRESSURE AND I WAS ABLE TO BRING THE VEHICLE TO A STOP, BY A COMBINATION OF DOWNSHIFTING AND USING WHAT LITTLE BRAKES THAT I HAD LEFT. THE BRAKE WARNING LIGHT ON THE PANEL CAME ON AT THAT TIME. THE VEHICLE WAS TAKEN TO A LOCAL SHOP TO HAVE THE PROBLEM CHECKED OUT. I WAS TOLD THAT MY BRAKE LINES WERE COMPLETELY RUSTED OUT AND THAT THEY ALL HAD TO BE REPLACED. I WAS APPROXIMATELY 1/8 OF A MILE FROM MY ENTRANCE TO THE HIGHWAY, AND I WAS FORTUNATE THAT THIS HAPPENED BEFORE I GOT ON THE HIGHWAY. I WOULD HAVE BEEN IN CONGESTED MORNING TRAFFIC TRAVELING AT A SPEED OF 60MPH. I HAD NO PRIOR WARNING. I WAS TOLD BY THE REPAIR SHOP THAT THE LINES WERE RUSTED SO BAD THAT IT WAS SENSELESS TO TRY TO FIX JUST ONE SECTION, AND THAT IF THEY DID THAT I WOULD BE RETURNING SHORTLY TO REPAIR ADDITIONAL PARTS OF THE LINES. THEY TOLD ME THAT THIS WAS A VERY LABOR INTENSIVE REPAIR AND THAT IT COULD COST APPROXIMATELY $1000 DOLLARS. I WAS ALSO TOLD THAT THIS WAS A COMMON PROBLEM WITH MANY CHEVROLETS MANUFACTURED IN THE 2000 YEARS. THIS IS A VERY DANGEROUS SITUATION AND THEIR SHOULD HAVE BEEN A RECALL ON THIS ISSUE. *TR

NHTSA ODI #10515628

51,700 miles · May 23, 2013
Service Brakes

LEAKING FLUID FOUND TO BE BRAKE FLUID COMING FROM RUST RUPTURED BRAKE LINES, ALL LINES RUSTED AND DEEMED BY DEALERSHIP TO REQUIRE REPLACEMENT OF LINES AND FRONT BRAKE CALIPERS. *TR

NHTSA ODI #10513282

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.