NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
164 reportsClear category filter61,000 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
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
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
82,000 miles · Apr 28, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING AT APPROXIMATELY 10 MPH AND ATTEMPTING TO BRAKE, THE ABS LIGHT WOULD NOT ILLUMINATE AND THE ABS WOULD NOT ENGAGE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THERE WERE NO RECALLS ON THE VEHICLE. THE VIN WAS UNAVAILABLE A…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE DRIVING AT APPROXIMATELY 10 MPH AND ATTEMPTING TO BRAKE, THE ABS LIGHT WOULD NOT ILLUMINATE AND THE ABS WOULD NOT ENGAGE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THERE WERE NO RECALLS ON THE VEHICLE. THE VIN WAS UNAVAILABLE AT THE TIME OF THE COMPLAINT. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 82,000.
NHTSA ODI #10327920
77,709 miles · Apr 28, 2010
Service Brakes, Hydraulic
I SAW THE NEWSPAPER ARTICLE ON THE POSSIBLE BRAKE FAILURE ON 99-03 PICKUP TRUCKS. THIS HAPPENED TO MY SON IN MY 2002 CHEVY SILVERADO IN MY DRIVEWAY WHICH IS ABOUT 100 FEET LONG. HE PUSHED ON THE BRAKES AND THE PEDAL WENT TO THE FLOOR. LUCKILY HE WAS GOING SLOW. THERE WAS BRAKE FLUID IN THE DRIVEWAY. I WAS OUTSIDE AT THE TIM…
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I SAW THE NEWSPAPER ARTICLE ON THE POSSIBLE BRAKE FAILURE ON 99-03 PICKUP TRUCKS. THIS HAPPENED TO MY SON IN MY 2002 CHEVY SILVERADO IN MY DRIVEWAY WHICH IS ABOUT 100 FEET LONG. HE PUSHED ON THE BRAKES AND THE PEDAL WENT TO THE FLOOR. LUCKILY HE WAS GOING SLOW. THERE WAS BRAKE FLUID IN THE DRIVEWAY. I WAS OUTSIDE AT THE TIME AND GOT IN AND PUMPED THE BRAKES. NONE. I HAD TO HAVE IT TOWED TO A REPAIR SHOP AND THEY REPLACE A DEFECTIVE BRAKE LINE. YOUR ARTICLE HAS MADE ME FEARFUL FOR MY FAMILY. *TR
NHTSA ODI #10327830
149,000 miles · Apr 27, 2010
Service Brakes, Hydraulic
MARCH 27, 2010 REAR DRIVER SIDE BRAKE LINE BURST ON 2002 CHEVY SILVERADO WHILE ON HIGHWAY. WHEN BROUGHT IN FOR REPAIR 2 NEW CALIPERS WERE NEEDED DUE TO EXTENSIVE CORROSION. REPAIRS CAME TO $617. *TR
NHTSA ODI #10327674
156,000 miles · Apr 17, 2010
Parking BrakeService Brakes, Hydraulic
CORRODED BRAKE LINES CAUSED THE FAILURE OF BOTH FRONT AND REAR BRAKES AT THE SAME TIME. INOPERABLE REAR EMERGENCY BRAKES PROVIDED NO EMERGENCY STOPPING ABILITY. REPLACED BRAKE LINES. EMERGENCY BRAKE NOT REPAIRED. I UNDERSTAND THAT TRUCKS WITH MANUAL TRANSMISSIONS WERE RECALLED FOR EMERGENCY BRAKE DEFECT CORRECTION, BUT TRUCK…
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CORRODED BRAKE LINES CAUSED THE FAILURE OF BOTH FRONT AND REAR BRAKES AT THE SAME TIME. INOPERABLE REAR EMERGENCY BRAKES PROVIDED NO EMERGENCY STOPPING ABILITY. REPLACED BRAKE LINES. EMERGENCY BRAKE NOT REPAIRED. I UNDERSTAND THAT TRUCKS WITH MANUAL TRANSMISSIONS WERE RECALLED FOR EMERGENCY BRAKE DEFECT CORRECTION, BUT TRUCKS WITH AUTOMATIC TRANSMISSIONS WERE NOT EVENTHOUGH THEY HAVE THE SAME EMERGENCY BRAKE SYSTEM. MY VEHICLE HAS AN AUTOMATIC TRANSMISSION. NOT CERTAIN WHEN EMERGENCY BRAKES BECAME INOPERABLE, BUT MY GUESS IS AROUND 2004 OR 2005, WITH 60K TO70K MILES. BRAKE LINE RUPTURE WAS IN 2009 AT 156K MILES. *TR
NHTSA ODI #10326128
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.
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