NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
614 reports76,000 miles · Oct 4, 2006
Seat Belts
DT*: THE CONTACT STATED WHILE DRIVING 45 MPH ON A COUNTRY ROAD, WHILE THE FRONT DRIVER SIDE SEAT BELT WAS ENGAGED, THE STRAP ASSEMBLY AND RETRACTOR WOULD NOT RETRACT PROPERLY BACK INTO PLACE. THE VEHICLE WAS INSPECTED BY A DEALER WHO DETERMINED THE ENTIRE FRONT DRIVER'S SEAT BELT ASSEMBLY NEEDED TO BE REPLACED. THE MANUFACTURE…
Read full complaint
DT*: THE CONTACT STATED WHILE DRIVING 45 MPH ON A COUNTRY ROAD, WHILE THE FRONT DRIVER SIDE SEAT BELT WAS ENGAGED, THE STRAP ASSEMBLY AND RETRACTOR WOULD NOT RETRACT PROPERLY BACK INTO PLACE. THE VEHICLE WAS INSPECTED BY A DEALER WHO DETERMINED THE ENTIRE FRONT DRIVER'S SEAT BELT ASSEMBLY NEEDED TO BE REPLACED. THE MANUFACTURER WAS CONTACTED. UPDATED 10/25/2006 - *NM
NHTSA ODI #10169918
55,000 miles · Sep 13, 2006
Parking Brake
PARKING BRAKE FAILURE. THE PARKING BRAKE HAS FAILED TO SECURE VEHICLE. I REALIZE THAT RECALL HAS BEEN MADE FOR MANUAL TRANS BUT THIS HAS GOTTEN PROGRESSIVELY WORSE AND NOW TOTAL FAILURE. FAILED SAFETY AND STATE VEHICLE INSPECTION. THE INTERNET BOARDS ARE FILLED WITH EXAMPLES OF FAILED PARKING/EMERGENCY BRAKES ON 2000 YR SILVERAD…
Read full complaint
PARKING BRAKE FAILURE. THE PARKING BRAKE HAS FAILED TO SECURE VEHICLE. I REALIZE THAT RECALL HAS BEEN MADE FOR MANUAL TRANS BUT THIS HAS GOTTEN PROGRESSIVELY WORSE AND NOW TOTAL FAILURE. FAILED SAFETY AND STATE VEHICLE INSPECTION. THE INTERNET BOARDS ARE FILLED WITH EXAMPLES OF FAILED PARKING/EMERGENCY BRAKES ON 2000 YR SILVERADO. THIS CONSTITUTES A DESIGN DEFECT AND GM NEEDS TO ADDRESS. LINKAGE IS NOW LOCKED IN OPEN POSITION EFFECTIVELY PROVIDING NO EMERGENCY BRAKE. THIS IN ADDITION TO THE FAILURE OF THE FUEL SENSING MODULE IN FUEL TANK AND THE ABS BRAKE SHUDDER/FAILURE PROBLEMS AT LOWER SPEEDS. I JUST WANT IT ON RECORD THAT GM PUTS OUT THESE TRUCKS YR/YR WITH THESE KNOW PROBLEMS AND DOESN'T CORRECT THESE SAFETY ISSUES UNTIL THE NHTSA PUTS THEIR WEIGHT BEHIND IT. THX *CBC *NM
NHTSA ODI #10168208
30,000 miles · Sep 13, 2006
Vehicle Speed Control
THIS IS IN REGARDS TO NHTSA ACTION NUMBER: EA02015. THIS HAS BEEN AN ONGOING PROBLEM WITH THE ACCEL PEDAL GETTING STUCK. DEALER SAID IT IS NORMAL WHICH IT IS NOT. HAPPENS RANDOMLY WHEN MANEUVERING AT LOWER SPEEDS PARKING LOTS/STREETS ETC. YOU HAVE TO GIVE THE PEDAL A FIRM PUSH TO GET IT UNSTUCK AND THE TRUCK LUNGES FWD. SOMEONE…
Read full complaint
THIS IS IN REGARDS TO NHTSA ACTION NUMBER: EA02015. THIS HAS BEEN AN ONGOING PROBLEM WITH THE ACCEL PEDAL GETTING STUCK. DEALER SAID IT IS NORMAL WHICH IT IS NOT. HAPPENS RANDOMLY WHEN MANEUVERING AT LOWER SPEEDS PARKING LOTS/STREETS ETC. YOU HAVE TO GIVE THE PEDAL A FIRM PUSH TO GET IT UNSTUCK AND THE TRUCK LUNGES FWD. SOMEONE IS GOING TO GET HURT BY THIS. I HAVE SEEN MANY MANY COMPLAINTS OF THIS ON THE BOARDS/CHAT ROOMS. I WAS WITH MY YOUNG DAUGHTER DRIVING AND THIS OCCURRED AND SHE PULLED OUT AND PEDAL/THROTTLE GOT STUCK. SHE GAVE GAS AND LOST CONTROL OF VEHICLE NARROWLY MISSING SEMI. THIS IS A MAJOR PROBLEM AND GM NEEDS TO ADDRESS. MY INDEPENDENT MECHANIC SAYS THIS IS VERY COMMON ON THIS YRS CHEVY SILVERADOS AND NO FIX EXISTS. *CBC *NM
NHTSA ODI #10168207
44,000 miles · Aug 29, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED AT VARIOUS SPEEDS, THE VEHICLE ROTORS WERE CORRODED. ALL FOUR ROTORS HAD THIS PROBLEM. THE PADS WERE NOT MAKING FULL CONTACT WITH THE DISCS. THE CONTACT FELT THE BRAKING WAS NOT AFFECTED BUT COULD DECREASE IN THE FUTURE. THE VEHICLE HAD A 4-WHEEL ANTI-LOCK BRAKING SYSTEM. THE VEHICLE WAS TAKEN TO TH…
Read full complaint
DT*: THE CONTACT STATED AT VARIOUS SPEEDS, THE VEHICLE ROTORS WERE CORRODED. ALL FOUR ROTORS HAD THIS PROBLEM. THE PADS WERE NOT MAKING FULL CONTACT WITH THE DISCS. THE CONTACT FELT THE BRAKING WAS NOT AFFECTED BUT COULD DECREASE IN THE FUTURE. THE VEHICLE HAD A 4-WHEEL ANTI-LOCK BRAKING SYSTEM. THE VEHICLE WAS TAKEN TO THE DEALER ON 08/22/06 TO HAVE A RECALL PERFORMED REGARDING THE ABS SYSTEM, BUT WAS NOT COMPLETED BECAUSE THE DEALER NOTIFIED THE CONTACT THAT THE ROTORS NEEDED TO BE REPLACED AS WELL. THE MANUFACTURER WAS NOT CONTACTED. UPDATED 09/13/06
NHTSA ODI #10166838
121,327 miles · Aug 28, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED THE REAR PASSENGER SIDE BRAKES STARTED TO GRIND, AND A CLUNK WAS HEARD WHILE DRIVING 15 MPH ON DRY FLAT ROAD CONDITIONS. UPON INSPECTION, THE CONTACT NOTICED THE REAR BRAKE PADS AND CALIPER ON THE GROUND. ALSO, THE REAR DRIVER SIDE DUST SHIELD WAS DETERIORATED THE DEALER WAS CONTACTED ON 08/22/06 AND …
Read full complaint
DT*: THE CONTACT STATED THE REAR PASSENGER SIDE BRAKES STARTED TO GRIND, AND A CLUNK WAS HEARD WHILE DRIVING 15 MPH ON DRY FLAT ROAD CONDITIONS. UPON INSPECTION, THE CONTACT NOTICED THE REAR BRAKE PADS AND CALIPER ON THE GROUND. ALSO, THE REAR DRIVER SIDE DUST SHIELD WAS DETERIORATED THE DEALER WAS CONTACTED ON 08/22/06 AND EXPRESSED THAT THE BRAKES HAD TO BE REPLACED. THE MANUFACTURER WAS CONTACTED ON 08/28/06 AND DETERMINED THERE WAS NO RECALL PERTAINING TO THE BRAKES. THE VEHICLE HAD 4-WHEEL ANTILOCK BRAKES.
NHTSA ODI #10166702
Mileage unknown · Aug 18, 2006
Vehicle Speed Control
THIS IS IN REGARDS TO NHTSA ACTION NUMBER: EA02015. I DID NOT KNOW OF THIS SITE AND OF SUCH DEFECT INVESTIGATIONS, BUT ALTHOUGH THE MATTER MIGHT BE CLOSED, I MUST STRONGLY URGE YOU TO REOPEN THIS MATTER REGARDLESS OF WHAT GM IS RESPONDING WITH. I HAVE NOTICED IN THE PAST AND PRESENT, THAT THE CONDITION DESCRIBED IN THE NHTSA …
Read full complaint
THIS IS IN REGARDS TO NHTSA ACTION NUMBER: EA02015. I DID NOT KNOW OF THIS SITE AND OF SUCH DEFECT INVESTIGATIONS, BUT ALTHOUGH THE MATTER MIGHT BE CLOSED, I MUST STRONGLY URGE YOU TO REOPEN THIS MATTER REGARDLESS OF WHAT GM IS RESPONDING WITH. I HAVE NOTICED IN THE PAST AND PRESENT, THAT THE CONDITION DESCRIBED IN THE NHTSA ACTION, IS STILL CURRENTLY OCCURRING. I LIVE IN THE SAN FRANCISCO OUTSKIRTS WHERE TEMPERATURES RARELY REACH ABOVE 80 DEGREES F. DURING DAYS WHERE THE TEMPERATURE RISES, THE ACCELERATOR PEDAL DOES, "STICK" WHERE YOU HAVE TO GIVE IT A GOOD FIRM PUSH WHICH CAUSES THE VEHICLE TO LUNGE FORWARD. ALSO, WHEN THE VEHICLE IS ON A SLOPE, IT ALSO DOES SEEM TO, "STICK" OFTEN. FOR PURPOSES OF THIS STATEMENT, I WILL NOT PUT A SPECIFIC INCIDENT DATE BECAUSE IT IS ONGOING AND WILL LIST TODAY'S DATE FOR PURPOSES OF FUTURE REFERENCE. THANK YOU. *NM
NHTSA ODI #10165901
65,000 miles · Aug 14, 2006
Parking Brake
PARKING BRAKE FAILURE AS IN RECALL #050042 EXCEPT MY VEHICLE IS HAS AN AUTOMATIC TRANSMISSION. PARKING BRAKE FAILS TO HOLD VEHICLE SECURELY ON AN INCLINE. ALSO, PARKING BRAKE PEDAL HAS NOW RELEASED WITH SUCH EXCESSIVE FORCE THAT IT HAS EXCEEDED ITS NORMAL RANGE OF MOTION AND HAS BECOME MECHANICALLY LOCKED IN THE "UP" OR RELEAS…
Read full complaint
PARKING BRAKE FAILURE AS IN RECALL #050042 EXCEPT MY VEHICLE IS HAS AN AUTOMATIC TRANSMISSION. PARKING BRAKE FAILS TO HOLD VEHICLE SECURELY ON AN INCLINE. ALSO, PARKING BRAKE PEDAL HAS NOW RELEASED WITH SUCH EXCESSIVE FORCE THAT IT HAS EXCEEDED ITS NORMAL RANGE OF MOTION AND HAS BECOME MECHANICALLY LOCKED IN THE "UP" OR RELEASED POSITION RENDERING IT INOPERABLE. *JB
NHTSA ODI #10165401
51,485 miles · Jul 11, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED THAT THE BRAKES FAILED WHILE DRIVING 15 MPH NEARLY CAUSING AN ACCIDENT; THE VEHICLE SWERVED ON A SIDEWALK IN ORDER TO AVOID CRASHING INTO ANOTHER VEHICLE. THE DEALERS DETERMINED THAT THE CAUSE FOR THE BRAKE MALFUNCTION WAS CAUSED BY THE BRAKELINE RUSTING OUT. 08/02/06 UPDATED. *TT
NHTSA ODI #10162142
107,350 miles · Jul 9, 2006
Power Train
WAS COMING HOME FROM WORK, THE SERVICE 4WD DRIVE LIGHT CAME ON, SHUT THE VEHICLE OFF, THE LIGHT WOULD GO OFF FOR AWHILE, THEN COME BACK ON. AS SOON AS I GOT HOME I CALLED MY MECHANIC, HE SAID HE HAD WORKED ON SEVERAL 2000 SILVERADOS WITH THIS SAME PROBLEM LATELY. ALSO FOUND OUT THE NEIGHBOR HAD THE SAME PROBLEM WITH THE SAME …
Read full complaint
WAS COMING HOME FROM WORK, THE SERVICE 4WD DRIVE LIGHT CAME ON, SHUT THE VEHICLE OFF, THE LIGHT WOULD GO OFF FOR AWHILE, THEN COME BACK ON. AS SOON AS I GOT HOME I CALLED MY MECHANIC, HE SAID HE HAD WORKED ON SEVERAL 2000 SILVERADOS WITH THIS SAME PROBLEM LATELY. ALSO FOUND OUT THE NEIGHBOR HAD THE SAME PROBLEM WITH THE SAME VEHICLE (MODEL AND YEAR THE SAME). TURNS OUT IT IS A FAULTY SWITCH IN THE 4WD BUTTON IN THE DASH, WON'T FULLY ENGAGE, AND COULD SCATTER THE TRANSFER CASE. OUR MECHANIC HAS THE VEHICLE RIGHT NOW, HE REPLACED THE SWITCH IN THE DASH, AND ALSO PERFORMED THE RECALLS THAT WE FOUND IE: ABS & TAILGATE CABLES. *NM
NHTSA ODI #10161906
58,000 miles · Jul 7, 2006
Service Brakes, Hydraulic
DT: THE CONTACT STATED WHILE DEPRESSING THE BRAKES TRAVELING AT ANY SPEED THEY INTERMITTENTLY SKIDS AS IF THE BRAKE ARE LOCKING UP AND THERE IS AN EXTENDED STOPPING DISTANCE. THE VEHICLE HAS BEEN TAKEN TO THE DEALER ON SEVERAL OCCASIONS. ON ONE OCCASION THE DEALER REPLACED THE BRAKES HOWEVER THE PROBLEM PERSISTED. WHEN THE VEHIC…
Read full complaint
DT: THE CONTACT STATED WHILE DEPRESSING THE BRAKES TRAVELING AT ANY SPEED THEY INTERMITTENTLY SKIDS AS IF THE BRAKE ARE LOCKING UP AND THERE IS AN EXTENDED STOPPING DISTANCE. THE VEHICLE HAS BEEN TAKEN TO THE DEALER ON SEVERAL OCCASIONS. ON ONE OCCASION THE DEALER REPLACED THE BRAKES HOWEVER THE PROBLEM PERSISTED. WHEN THE VEHICLE TAKEN BACK TO THE DEALER, THEY TEST DROVE THE VEHICLE AND DETERMINED THAT THE PROBLEM WAS FIX. HOWEVER, THE PROBLEM STILL PERSISTS. *NM
NHTSA ODI #10161745
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.
Illustration