NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
509 reports61,000 miles · Aug 5, 2010
Service Brakes, HydraulicCrash
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHEN DRIVING APPROXIMATELY 5 MPH, HE ATTEMPTED TO BRAKE BUT THE VEHICLE WOULD NOT STOP. THE CONTACT CRASHED INTO THE VEHICLE AHEAD OF HIM. THERE WERE NO INJURIES AND MINIMAL DAMAGE TO THE OTHER VEHICLE. THE VEHICLE WAS TAKEN TO A REPAIR SHOP WHERE THE CONT…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHEN DRIVING APPROXIMATELY 5 MPH, HE ATTEMPTED TO BRAKE BUT THE VEHICLE WOULD NOT STOP. THE CONTACT CRASHED INTO THE VEHICLE AHEAD OF HIM. THERE WERE NO INJURIES AND MINIMAL DAMAGE TO THE OTHER VEHICLE. THE VEHICLE WAS TAKEN TO A REPAIR SHOP WHERE THE CONTACT WAS INFORMED THAT THE ENTIRE BRAKE LINE WAS RUSTED. THE VEHICLE WAS REPAIRED. THE CONTACT HAD NOT SPOKEN WITH THE MANUFACTURER. THE FAILURE MILEAGE WAS APPROXIMATELY 61,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 62,000.
NHTSA ODI #10347416
3 miles · Jul 28, 2010
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE TRAVELING AT 10 MPH, THE CONTACT APPLIED THE BRAKES AND THERE WAS AN INCREASE IN STOPPING DISTANCE. THE CONTACT STATED THAT THE BRAKE PEDAL WOULD SPORADICALLY FALL INTO THE FLOORBOARD WHEN DEPRESSED, CAUSING AN INCREASE IN STOPPING DISTANCE AND TIME. THE DEALER ADVISED …
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE TRAVELING AT 10 MPH, THE CONTACT APPLIED THE BRAKES AND THERE WAS AN INCREASE IN STOPPING DISTANCE. THE CONTACT STATED THAT THE BRAKE PEDAL WOULD SPORADICALLY FALL INTO THE FLOORBOARD WHEN DEPRESSED, CAUSING AN INCREASE IN STOPPING DISTANCE AND TIME. THE DEALER ADVISED THE VEHICLE WAS PERFORMING AS DESIGNED. THE VEHICLE WAS THEN TAKEN TO A LOCAL MECHANIC WHERE THE CONTACT WAS INFORMED THAT THE MASTER CYLINDER WAS DEFECTIVE AND WAS NOT PRODUCING THE REQUIRED BRAKING PRESSURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 3 AND THE CURRENT MILEAGE WAS 78,000. UPDATED 10/04/10. *LJ THE CONSUMER STATED THE ABS WAS FIXED UNDER RECALL. HOWEVER, THE PROBLEM HAS SINCE RETURNED. THE ABS FAILED UNDER 10 MPH. UPDATED 10/05/10. *JB
NHTSA ODI #10345858
46,000 miles · Jul 6, 2010
Service Brakes, Hydraulic
HAVE A 2002 SILVERADO WITH 46,000 MILES AND IN JUNE 2010 EXPERIENCED A MAJOR BRAKE FAILURE WHEN THE BRAKE LINES NEAR THE FRAME RAIL BRAKE/ABS CONTROLLER RUSTED AWAY. WHEN TRYING TO STOP THE BRAKE PEDAL WENT TO FLOOR, WAS NEAR HOME AND DROVE THE REST OF THE WAY. THE NEXT DAY THE BRAKE WARNING LIGHT WAS ON, THE FLUID HAD LEAKED …
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HAVE A 2002 SILVERADO WITH 46,000 MILES AND IN JUNE 2010 EXPERIENCED A MAJOR BRAKE FAILURE WHEN THE BRAKE LINES NEAR THE FRAME RAIL BRAKE/ABS CONTROLLER RUSTED AWAY. WHEN TRYING TO STOP THE BRAKE PEDAL WENT TO FLOOR, WAS NEAR HOME AND DROVE THE REST OF THE WAY. THE NEXT DAY THE BRAKE WARNING LIGHT WAS ON, THE FLUID HAD LEAKED OUT AND I DISCOVERED THE PROBLEM - THE RUSTED LINES. A $1000.00 OF BRAKE WORK TO CORRECT THE BRAKE LINES, THAT IS REPLACE THEM AND NEW FRONT BRAKES BECAUSE THE CALIPERS HAD ALSO RUSTED SO BADLY THEY COULDN'T BLEED THE BRAKES. THIS IS NOT ACCEPTABLE FOR A MODERN VEHICLE TO HAVE SAFETY PARTS RUST SO BADLY AT SUCH LOW MILEAGE. *TR
NHTSA ODI #10341704
Mileage unknown · Jun 23, 2010
Steering
2002 CHEVROLET SILVERADO K1500. CONSUMER STATES DEFECTIVE PART IN STEERING COLUMN *TGW THE CONSUMER STATED SINCE 2002 THE INTERMEDIATE SHAFT HAS BEEN REPAIRED FIVE TIMES, TO ELIMINATE THE RATTLE WHEN TURNING THE STEERING WHEEL OR WHEN GOING OVER A BUMP. THE CONSUMER STATED HE LOCATED A GM SERVICE BULLETIN REGARDING THE INTERMED…
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2002 CHEVROLET SILVERADO K1500. CONSUMER STATES DEFECTIVE PART IN STEERING COLUMN *TGW THE CONSUMER STATED SINCE 2002 THE INTERMEDIATE SHAFT HAS BEEN REPAIRED FIVE TIMES, TO ELIMINATE THE RATTLE WHEN TURNING THE STEERING WHEEL OR WHEN GOING OVER A BUMP. THE CONSUMER STATED HE LOCATED A GM SERVICE BULLETIN REGARDING THE INTERMEDIATE SHAFT. *JB
NHTSA ODI #10340052
168,241 miles · Jun 22, 2010
Equipment Adaptive/mobility
HAVE OWNED MY 2002 CHEVY SILVERADO SINCE NEW. I HAVE NEVER GOTTEN A FLAT TIRE WITH THIS TRUCK UNTIL A COUPLE OF WEEKS AGO. I GOT A FLAT TIRE ON MEMORIAL DAY ON A FOUR LANE HIGHWAY (RT-1). I WAS IN AN ODD SPOT TO MOVE FARTHER FROM THE TRAFFIC LANE AND I COULD NOT GET THE TRUCK HIGH ENOUGH WITH THE FACTORY JACK THAT WAS PROVIDED. …
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HAVE OWNED MY 2002 CHEVY SILVERADO SINCE NEW. I HAVE NEVER GOTTEN A FLAT TIRE WITH THIS TRUCK UNTIL A COUPLE OF WEEKS AGO. I GOT A FLAT TIRE ON MEMORIAL DAY ON A FOUR LANE HIGHWAY (RT-1). I WAS IN AN ODD SPOT TO MOVE FARTHER FROM THE TRAFFIC LANE AND I COULD NOT GET THE TRUCK HIGH ENOUGH WITH THE FACTORY JACK THAT WAS PROVIDED. I FIGURED IT WAS BECAUSE OF THE UNEVEN GROUND I WAS ON. ABOUT A WEEK LATER I HAD A BLOW OUT WITH THE SAME TIRE IN A PARKING GARAGE (NICE LEVEL FLAT CONCRETE SURFACE). I HAVE BEEN A MECHANIC IN ABOUT 1975. HOLD MY PA STATE INSPECTION LICENSE AND WAS A ASE CERTIFIED MECHANIC. THE SUPPLIED JACK WITH THE SAME FACTORY SIZE TIRES WILL NOT GET THE VEHICLE HIGH ENOUGH TO CHANGE THE TIRES. I TRIED THE FACTORY RECOMMENDED SPOTS AND COUPLE OF OTHERS. HOW COULD GM PUT PEOPLE IN A POSITION LIKE THIS? SOMEBODY COULD GET KILLED TRYING TO USE THIS EQUIPMENT. *TR
NHTSA ODI #10339580
43,000 miles · Jun 15, 2010
Service Brakes, HydraulicCrash
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHEN PULLING FROM THE DRIVEWAY AND ATTEMPTING TO DEPRESS THE BRAKE PEDAL, THE VEHICLE CONTINUED MOVING AND CRASHED INTO A FENCE. THERE WERE NO INJURIES. NO POLICE REPORT WAS FILED. THE VEHICLE SUFFERED DAMAGES TO THE FRONT END AND BUMPER. THE VEHICLE WA…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHEN PULLING FROM THE DRIVEWAY AND ATTEMPTING TO DEPRESS THE BRAKE PEDAL, THE VEHICLE CONTINUED MOVING AND CRASHED INTO A FENCE. THERE WERE NO INJURIES. NO POLICE REPORT WAS FILED. THE VEHICLE SUFFERED DAMAGES TO THE FRONT END AND BUMPER. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THE BRAKES NEEDED TO BE REPLACED; THE REPAIR WAS PERFORMED AT THAT TIME. WHEN LEAVING THE DEALERSHIP, THE FAILURE OCCURRED AGAIN AND THE VEHICLE WAS TAKEN TO ANOTHER MECHANIC WHO STATED THAT THE WHEEL SENSOR NEEDED TO BE REPLACED; THE REPAIR WAS PERFORMED AT THAT TIME. THE VEHICLE CONTINUED HAVING PROBLEMS AND WOULD NOT STOP WHEN THE BRAKE PEDAL WAS DEPRESSED. THE MECHANIC WAS WORKING ON THE VEHICLE AT THE TIME OF THE COMPLAINT BUT STILL COULD NOT FIND THE PROBLEM. THE VIN WAS UNAVAILABLE AT THE TIME OF THE COMPLAINT. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 43,000.
NHTSA ODI #10336362
130,000 miles · May 15, 2010
Service Brakes, Hydraulic
I DRIVE A 2002 CHEVY SILVERADO 1500. YESTERDAY (5/14/10) I WAS APPLYING MY BRAKES TO COME TO A SUDDEN STOP WHEN SOMEONE CUT OUT IN FRONT OF MY TRUCK. I LOST ALL BRAKING ABILITY WHEN I APPLIED MY BRAKES TO STOP. LUCKILY I WAS ABLE TO STEER AWAY FROM THE ON COMING CAR AND ENDED UP ON THE SIDE OF THE ROAD. I GOT OUT OF MY TRUCK…
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I DRIVE A 2002 CHEVY SILVERADO 1500. YESTERDAY (5/14/10) I WAS APPLYING MY BRAKES TO COME TO A SUDDEN STOP WHEN SOMEONE CUT OUT IN FRONT OF MY TRUCK. I LOST ALL BRAKING ABILITY WHEN I APPLIED MY BRAKES TO STOP. LUCKILY I WAS ABLE TO STEER AWAY FROM THE ON COMING CAR AND ENDED UP ON THE SIDE OF THE ROAD. I GOT OUT OF MY TRUCK TO CHECK MY BRAKES WHEN I NOTICED A PUDDLE OF BRAKE FLUID UNDER THE FRONT OF MY TRUCK. UPON CLOSER EXAMINATION I NOTICED EXCESSIVE RUST ON THE BRAKE LINE AND BRAKE FLUID WAS FREE FLOWING FROM A RUPTURE IN THE BRAKE LINE THAT WAS HEAVILY CORRODED. *TR
NHTSA ODI #10330542
190,000 miles · May 15, 2010
Service Brakes, Electric
CHEVY SILVERADO 2002. AT LOW SPEEDS STOPPING DISTANCE IS UNEXPECTEDLY INCREASED DUE TO THE ABS PREVENTING A TOTAL STOP DURING DRY CONDITIONS. THIS OCCURRED COMING TO A STOP AT A STOP LIGHT AND COMING INTO A PARKING SPOT. THE PROBLEM HAS OCCURRED INTERMITTENTLY AT LEAST 7 TIMES IN THE WEEKS FOLLOWING THIS FIRST INCIDENT. THE …
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CHEVY SILVERADO 2002. AT LOW SPEEDS STOPPING DISTANCE IS UNEXPECTEDLY INCREASED DUE TO THE ABS PREVENTING A TOTAL STOP DURING DRY CONDITIONS. THIS OCCURRED COMING TO A STOP AT A STOP LIGHT AND COMING INTO A PARKING SPOT. THE PROBLEM HAS OCCURRED INTERMITTENTLY AT LEAST 7 TIMES IN THE WEEKS FOLLOWING THIS FIRST INCIDENT. THE BRAKES ALSO MAKE A GRINDING NOISE AT THE LAST POINT OF BREAKING. I CALLED THE DEALERSHIP AND DESCRIBED THE ABOVE. THEY INFORMED ME THERE IS NO PROBLEM WITH THE ABS UNLESS THE LIGHT IS ON. THEY SAID THEY WOULD HAVE TO KEEP THE TRUCK AND DRIVE IT UNTIL IT EXHIBITED THE PROBLEM. I CALLED THE GM RECALL HOT LINE ON MAY 12, 2010. BASED ON MY VIN HE SAID MY TRUCK WAS NOT INCLUDED IN THE RECALL BUT THAT HIS NOTES SHOWED THAT THE WHEEL SENSOR HAD BEEN INSPECTED AND CLEANED WHEN I HAD THE BRAKES DONE IN 2007. HE OFFERED NO HELP AT ALL. THIS PROBLEM IS SERIOUS AND I WILL BE PULLING THE ABS FUSE TO HOPEFULLY DISABLE THE SYSTEM AND AVOID AN ACCIDENT. IT IS CLEAR FROM THE MANY COMPLAINTS HERE AND ELSEWHERE ALL OVER THE INTERNET THAT THIS IS A SAFETY ISSUE DUE TO A FAILURE THAT GM SHOULD BE RESPONSIBLE FOR. *TR
NHTSA ODI #10330529
140,000 miles · May 4, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING AT 5 MPH, THE CONTACT APPLIED THE BRAKES AND THE ABS SYSTEM SUDDENLY ACTIVATED CAUSING THE BRAKES NOT TO ENGAGE. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO REPLACED THE FRONT PASSENGER SIDE WHEEL SENSOR. THE CONTACT CALLED THE MANUFACTURER AND WAS INFORMED THA…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING AT 5 MPH, THE CONTACT APPLIED THE BRAKES AND THE ABS SYSTEM SUDDENLY ACTIVATED CAUSING THE BRAKES NOT TO ENGAGE. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO REPLACED THE FRONT PASSENGER SIDE WHEEL SENSOR. THE CONTACT CALLED THE MANUFACTURER AND WAS INFORMED THAT THE REPAIR FOR RECALL 05V379000 (SERVICE BRAKES, HYDRAULIC: ANTILOCK) HAD PREVIOUSLY BEEN PERFORMED. THE FAILURE MILEAGE WAS APPROXIMATELY 140,000. THE CURRENT MILEAGE WAS APPROXIMATELY 146,000.
NHTSA ODI #10328754
70,010 miles · May 3, 2010
Electrical System
POSITIVE SIDE POST ON AC DELCO BATTERY CORRODED OFF AND LEAKED SULFURIC ACID ALL OVER TRUCK. *TR
NHTSA ODI #10328570
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.