NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
18 reportsClear category filterMileage unknown · Nov 19, 2014
Vehicle Speed Control
SERVICE ENGINE LIGHT HAS BEEN ON FOR SO LONG THE LIGHT HAS BURNED OUT. NOT HAVING THE TIME TO GET IT CHECKED OUT, TODAY I WENT TO AUTO ZONE TO HAVE A CODE READING ON MY 1999 CHEVY SILVERADO 5.3L. THE CODE INDICATED THE ABS CONTROL MODULE ALL SPEED SENSOR FAILURE. THEY INDICATED TO ME THERE WAS A RECALL ON THIS PART THAT NO ON…
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SERVICE ENGINE LIGHT HAS BEEN ON FOR SO LONG THE LIGHT HAS BURNED OUT. NOT HAVING THE TIME TO GET IT CHECKED OUT, TODAY I WENT TO AUTO ZONE TO HAVE A CODE READING ON MY 1999 CHEVY SILVERADO 5.3L. THE CODE INDICATED THE ABS CONTROL MODULE ALL SPEED SENSOR FAILURE. THEY INDICATED TO ME THERE WAS A RECALL ON THIS PART THAT NO ONE KNOWS ABOUT. THE TOLD ME INSTEAD OF ME BUYING THE PART AND PAYING TO GET IT FIXED, TO SEE IF THIS IS ON RECALL AND HAVE THE DEALER FIX IT FOR FREE. AS I SEE ON HERE, THIS IS A RECALL PART. CAN YOU PLEASE ADVISE ME ON HOW I CAN GET THIS FIXED? I HAVE CALLED A COUPLE OF CHEVY DEALERSHIPS AND THEY SAID THEY COULDN'T HELP ME. *TR
NHTSA ODI #10659261
126,000 miles · Aug 14, 2014
Service BrakesVehicle Speed Control
I WAS DRIVING ON MY WAY HOME FROM WORK GOING 45MPH WHEN I SAW A CAR A SHORT DISTANCE AHEAD PULL OUT ONTO THE ROAD. I TRIED TO APPLY MY BRAKES AS THE CAR AHEAD DID NOT REACH THE SPEED LIMIT FAST ENOUGH. MY BRAKE PEDAL WENT STRAIGHT DOWN TO THE FLOOR AND ALL BRAKING ABILITY WAS LOST. I LIFTED MY FOOT TO TRY TO APPLY THE PEDAL AGAI…
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I WAS DRIVING ON MY WAY HOME FROM WORK GOING 45MPH WHEN I SAW A CAR A SHORT DISTANCE AHEAD PULL OUT ONTO THE ROAD. I TRIED TO APPLY MY BRAKES AS THE CAR AHEAD DID NOT REACH THE SPEED LIMIT FAST ENOUGH. MY BRAKE PEDAL WENT STRAIGHT DOWN TO THE FLOOR AND ALL BRAKING ABILITY WAS LOST. I LIFTED MY FOOT TO TRY TO APPLY THE PEDAL AGAIN AND AGAIN THE PEDAL WENT STRAIGHT TO THE FLOOR. I NEARLY CRASHED INTO THE CAR AHEAD OF ME AND HAD TO SWERVE OFF OF THE ROAD TO AVOID CAUSING AN ACCIDENT. IT WAS ONLY AFTER A LONG DISTANCE OF RIDING ON THE SHOULDER AND DOWNSHIFTING THAT I WAS ABLE TO COME TO A STOP. ONLY JUST AS I WAS STOPPING DID THE BRAKE LIGHT AND ABS LIGHT ILLUMINATE ON THE DASH. I HAD NO WARNING THAT THIS WAS GOING TO HAPPEN OR THAT I HAD LOST MY BRAKES, OTHER THAN THE PEDAL GOING TO THE FLOOR. BEFORE THIS, THE BRAKES WORKED PERFECTLY. HAD I NOT HAD THE ROOM TO SWERVE OUT OF THE WAY, I WOULD HAVE BEEN IN A POTENTIALLY LETHAL ACCIDENT AND ONE OR MORE LIVES COULD HAVE BEEN LOST. *TR
NHTSA ODI #10622395
138,000 miles · May 9, 2014
Electrical SystemVehicle Speed Control
REAR PASSENGER DOOR LOCKS WILL NOT OPERATE MAKING IT ALMOST IMPOSSIBLE TO EXIT THE VEHICLE QUICKLY INTHE EVENT OF AN EMERGENCY. THE STEERING IS VERY SLOPPY AT SPEEDS ABOVE 30 MPH. AT HIGHER SPEEDS THE VEHICLE WILL WONDER ALL OVER THE ROAD MAKING IT VERY HARD TO OPERATE SAFELY. *TR
NHTSA ODI #10587536
Mileage unknown · Sep 28, 2012
Air BagsVehicle Speed ControlCrashInjury
I WAS PULLING IP TO A STOP SIGN AND MY THROTTLE STUCK AND I HAD NO CONTROL TO STOP IT AND A GUY HIT ME IN THE FRONT END WHERE ALL THE SENSORS TO MY AIRBAGS WERE AND THEY NEVER DEPLOYED AND THE GUY WAS GOING 95 MPH WHEN HE HIT ME. *TR
NHTSA ODI #10477351
100,000 miles · May 17, 2012
Vehicle Speed Control
TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE VEHICLE SUDDENLY ACCELERATED WHILE THE BRAKE WAS DEPRESSED. THE FAILURE ALSO OCCURRED WHILE IN REVERSE. THE FAILURE WAS EXPERIENCED SEVERAL TIMES INTERMITTENTLY, BUT HAD BECOME A PERMANENT FAILURE. THE BRAKE HAD TO BE DEPRESSED WITH FORCE AND THE G…
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TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE VEHICLE SUDDENLY ACCELERATED WHILE THE BRAKE WAS DEPRESSED. THE FAILURE ALSO OCCURRED WHILE IN REVERSE. THE FAILURE WAS EXPERIENCED SEVERAL TIMES INTERMITTENTLY, BUT HAD BECOME A PERMANENT FAILURE. THE BRAKE HAD TO BE DEPRESSED WITH FORCE AND THE GEAR HAD TO BE PLACED IN NEUTRAL IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC AND A DIAGNOSTIC TEST WAS PERFORMED. THE MECHANIC WAS UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 100,000 AND THE CURRENT MILEAGE WAS 175,000.
NHTSA ODI #10458829
110,000 miles · Feb 11, 2012
Electrical SystemService Brakes, HydraulicVehicle Speed ControlCrash
I HAVE HAD NOTHING BUT TROUBLE WITH ROTTED ROTORS, PADS THAT DON'T WEAR RIGHT, BRAKE LINES THAT ROTTED AND RUSTED AWAY THAT THEY NEEDED TO BE ALL REPLACED IN JULY OF 2006. A SIX YEAR OLD MOTOR VEHICLE SHOULD NOT HAVE TO HAVE ALL THE LINES REPLACED. THE BILL WAS $1,200. NEXT A ABS FRONT WHEEL SENSOR RECALL WAS DONE AT BEST CHEVY…
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I HAVE HAD NOTHING BUT TROUBLE WITH ROTTED ROTORS, PADS THAT DON'T WEAR RIGHT, BRAKE LINES THAT ROTTED AND RUSTED AWAY THAT THEY NEEDED TO BE ALL REPLACED IN JULY OF 2006. A SIX YEAR OLD MOTOR VEHICLE SHOULD NOT HAVE TO HAVE ALL THE LINES REPLACED. THE BILL WAS $1,200. NEXT A ABS FRONT WHEEL SENSOR RECALL WAS DONE AT BEST CHEVY, HINGHAM, MASS. THE ABS LIGHTS CAME ON AND OFF AT THEIR OWN PACE. I HAD NEW FRONT BEARINGS INSTALLED, HAD MY MECHANIC CHECK FOR CODES. NOTHING. THE BRAKES JUST NEVER FELT RIGHT SOMETIMES. I WORKED AS A AUTO MECHANIC FOR NEARLY 25 YEARS, NEVER SEEN ANYTHING LIKE THIS BRAKE PROBLEM. BY THE WAY I TOOK GOOD CARE OF MY VEHICLE, GM MUST OF USED SUB STANDARD BRAKE TUBING, NEVER SEEN ANYTHING SO DECAYED AFTER 6 YEARS. ON APRIL 29, 2011 I WAS DRIVING HOME AND HAD STOPPED AT A TRAFFIC LIGHT ABOUT 1/4 MILE FROM MY HOME. THE LIGHT TURNED GREEN, I ACCELERATED UP TO ABOUT 30 MPH AND WITHIN A FEW HUNDRED FEET THE ABS LIGHT CAME ON. HERE WE GO AGAIN. AS I NEARED THE ENTRANCE TO MY STREET SOME 300 FEET AWAY , I TOOK MY FOOT OF THE GAS AND THE TRUCK BEGAN TO SLOW. AT ABOUT 200 FEET I BEGAN TO DEPRESS THE BRAKE PEDAL, IT SEEMED OK BUT AS I GOT NEARER TO THE STREET I FOUND MYSELF NEEDING TO PUSH DOWN MORE AND MORE. I WAS AT 15 MPH AND READY TO BEGIN MY TURN AND FELT SOMETHING WAS WRONG. MY LEFT FRONT TIRE HAD BEGUN TO LIGHTLY SKID. THE PEDAL WENT TO THE FLOOR, WAS DOWN AT ABOUT 10 MPH AND BEFORE I COULD GET MY LEFT FOOT ONTO THE EMERGENCY BRAKE AND APPLY IT, THE LEFT SIDE FRONT OF TRUCK STRUCK A TREE. THE ROAD IS A PRIVATE WAY AND VERY NARROW THERE. NO AIR BAG DEPLOYMENT, DIDN'T DAMAGE THE TRUCK TOO MUCH BUT IT HIT RIGHT ON THE TOW HOOK AND KINKED THE FRAME. I HAD MY MECHANIC BRING HIS ANALYZER TO MY HOME AND IT INFORMED HIM THAT THE CONTROL MODULE HAD FAILED. I'VE SPENT GOOD MONEY AFTER BAD ON THOSE BRAKES AND I DEMAND THE NHTSA DO SOMETHING. *TR
NHTSA ODI #10447520
Mileage unknown · Mar 16, 2010
Fuel System, GasolineVehicle Speed Control
1999 CHEV. SILVERADO. THROTTLE HANGS CAUSING VEHICLE TO ACCELERATE EITHER FORWARD OR REVERSE RAPIDLY. NORMALLY STICKS FROM FULL STOPPED POSITION POSSIBLY CAUSING CRASHES, PARTICULARLY IN REVERSE FROM A PARKING POSITION. PROBLEM WAS REPAIRED UNDER WARRANTY, WARRANTY HAS EXPIRED AND PROBLEM HAS RETURNED. COULD CAUSE SERIOUS PERSON…
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1999 CHEV. SILVERADO. THROTTLE HANGS CAUSING VEHICLE TO ACCELERATE EITHER FORWARD OR REVERSE RAPIDLY. NORMALLY STICKS FROM FULL STOPPED POSITION POSSIBLY CAUSING CRASHES, PARTICULARLY IN REVERSE FROM A PARKING POSITION. PROBLEM WAS REPAIRED UNDER WARRANTY, WARRANTY HAS EXPIRED AND PROBLEM HAS RETURNED. COULD CAUSE SERIOUS PERSONAL AND VEHICLE DAMAGE. *TR
NHTSA ODI #10320285
71,000 miles · Aug 3, 2006
Fuel System, GasolineVehicle Speed ControlCrash
THROTTLE BODY STICKING AT LOW SPEEDS THROTTLE STICKS UNTIL PEDAL IS PUSHED BEYOND DESIRED POINT CAUSING VEHICLE TO SURGE FORWARD. I HIT GARAGE WALL. EXACT PROBLEM OCCURRED AT 30,000 MILES, DEALER REPLACED THROTTLE BODY(BAD BUSHINGS) UNDER WARRANTY. *JB
NHTSA ODI #10164339
79,617 miles · Jul 27, 2006
Vehicle Speed Control
DT*: THE CONTACT STATED, ON 12/05/05, ALL FORMS AND RECEIPTS WERE TURNED IN TO THE MANUFACTURER FOR REIMBURSEMENT OF A DEFECT REPAIR PERFORMED PRIOR TO THE RECALL. THE COMPONENT FOR THE RECALL WAS THE SPEED SENSOR. THE CUSTOMER SERVICE DEPARTMENT OF THE MANUFACTURER WAS SCHEDULED TO FOLLOW UP WITH INSTRUCTION FOR THE REIMBURSE…
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DT*: THE CONTACT STATED, ON 12/05/05, ALL FORMS AND RECEIPTS WERE TURNED IN TO THE MANUFACTURER FOR REIMBURSEMENT OF A DEFECT REPAIR PERFORMED PRIOR TO THE RECALL. THE COMPONENT FOR THE RECALL WAS THE SPEED SENSOR. THE CUSTOMER SERVICE DEPARTMENT OF THE MANUFACTURER WAS SCHEDULED TO FOLLOW UP WITH INSTRUCTION FOR THE REIMBURSEMENT PROCESS IN TWO BUSINESS DAYS. THERE HAS BEEN NO FOLLOW UP FROM THE MANUFACTURER AND THE CONTACT HAS MADE 5 ATTEMPTS TO OBTAIN THE STATUS OF THE REIMBURSEMENT ON THE RECALL REMEDY REPAIR PRIOR TO THE CAMPAIGN. UPDATED 8/16/2006 - THE CONSUMER HAS RECEIVED REIMBURSEMENT. *NM
NHTSA ODI #10163618
20,000 miles · Mar 25, 2004
Vehicle Speed Control
THE ACCELERATOR PEDAL STICKS AND CANNOT BE PUSHED DOWN TO ACCELERATE THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHICH CLEANED AND ADJUSTED THE THROTTLE BODY. THE DEALER RECOMMENDS THAT THE THROTTLE BODY RECEIVE REGULAR MAINTENANCE EVERY 30,000 MILES. PLEASE PROVIDE FURTHER DETAILS. *NM *LA
NHTSA ODI #10064876
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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