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1999 Chevrolet Silverado 1500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 1999 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

418 reports with mileage · 169 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, Hydraulic. Review the 222 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 126 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

43 crash reports5 fire reports18 injury reports

What owners actually said

587 reports
112,325 miles · Apr 1, 2012
Service Brakes, Hydraulic

REAR MAIN BRAKE LINE FAILURE DUE TO EXTREME RUSTING CONDITION. THIS LINE IS LOCATED ALONG THE DRIVER SIDE UPPER CHASSIS RAIL. FURTHER INSPECTION OF ALL BRAKE LINES RESULTED IN A VERY RUSTED CONDITION. *TR

NHTSA ODI #10453745

135,000 miles · Mar 20, 2012
StructureSuspension

1999 SILVERADO EXCESSIVE ROT ON FRAME JUST ASIDE OF FUEL TANK, LOWER CHANNEL OF FRAME GONE STARTING TO CRACK GOING VERTICAL. ALSO REAR SPRING PERCHES ROTTED TO POINT OF NO REPAIR.. TRUCK IS STREET DRIVEN NEVER OFF ROAD AM SECOND OWNER OF TRUCK. HAVE HAD OLDER CHEVYS WITH OUT ANY PROBLEMS AS THIS. GOOGLE FRAME ROT 99 SILVERADO…

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1999 SILVERADO EXCESSIVE ROT ON FRAME JUST ASIDE OF FUEL TANK, LOWER CHANNEL OF FRAME GONE STARTING TO CRACK GOING VERTICAL. ALSO REAR SPRING PERCHES ROTTED TO POINT OF NO REPAIR.. TRUCK IS STREET DRIVEN NEVER OFF ROAD AM SECOND OWNER OF TRUCK. HAVE HAD OLDER CHEVYS WITH OUT ANY PROBLEMS AS THIS. GOOGLE FRAME ROT 99 SILVERADO ITS NOT JUST MINE CHEVY CUSTOMER SERVICE..."WE HAVEN HAD ANY ISSUES WITH THAT ON THAT VEHICLE" SHOULDN'T FRAMES LAST LONGER? *TR *KB

NHTSA ODI #10452425

Mileage unknown · Mar 16, 2012
Service Brakes, Hydraulic

ON MARCH 12 2012 I WAS TRAVELING DOWN A ROAD GOING TO WORK WHEN A VEHICLE PULLED OUT IN FRONT OF ME. DRIVER DID NOT SEE ME THEREFORE KEPT ON GOING SO I IMMEDIATELY HIT THE BRAKES AND SWERVED TO THE LEFT AVOIDING A CRASH.. AT THAT TIME WHEN I HIT MY BRAKES THE PEDAL WENT STRAIGHT TO THE FLOOR. THE ABS WAS ACTIVATED BUT IT TOOK CO…

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ON MARCH 12 2012 I WAS TRAVELING DOWN A ROAD GOING TO WORK WHEN A VEHICLE PULLED OUT IN FRONT OF ME. DRIVER DID NOT SEE ME THEREFORE KEPT ON GOING SO I IMMEDIATELY HIT THE BRAKES AND SWERVED TO THE LEFT AVOIDING A CRASH.. AT THAT TIME WHEN I HIT MY BRAKES THE PEDAL WENT STRAIGHT TO THE FLOOR. THE ABS WAS ACTIVATED BUT IT TOOK CONSIDERABLY LONGER TO STOP THE TRUCK SINCE I HAD VERY LITTLE BRAKING EFFORT... I TOOK IT TO A SHOP TO HAVE IT FIXED AND IT WAS DETERMINED THAT ONE OF THE 4 LINES THAT WERE CLUSTERED TOGETHER ON THE FRAME BETWEEN THE MASTER CYLINDER AND THE ABS CONTROLLER HAD BURST. ALL 4 OF THE LINES WERE VERY RUSTY. IN ADDITION, TODAY MARCH 16 2012 I WENT BY THE SHOP TO SEE WHAT THEY HAD DONE ON THE REPAIR.. THE MECHANIC INFORMED ME THAT HE HAD REPAIRED THE LINE AND WHEN HE WAS BLEEDING THE BRAKES, ANOTHER ONE OF THE LINES HAD BURST. *TR

NHTSA ODI #10451957

116,000 miles · Mar 1, 2012
Service Brakes, Hydraulic

WHILE DRIVING ON THE HIGHWAY, IN A SNOWSTORM, I HAD TO HIT THE BRAKES TO AVOID ANOTHER CAR, THAT HAD LOST CONTROL. I WAS ABLE TO NARROWLY MISS HIM, BUT WHEN I WENT TO STOP, MY BRAKES HIT THE FLOOR. I WAS REALLY LUCKY NO ONE ELSE WAS AROUND, BECAUSE I COULDN'T STOP. *TR

NHTSA ODI #10449994

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

140,000 miles · Feb 7, 2012
Service Brakes, Hydraulic

BRAKE FAILURE CAUSED BY BRAKE LINE FAILURE DUE TO CORROSION. UPON INSPECTION, ALL BRAKE LINES ARE SEVERELY CORRODED AND MUST BE REPLACED. *TR

NHTSA ODI #10446960

120,000 miles · Jan 31, 2012
SeatsInjury

TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT HE QUICKLY APPLIED THE BRAKES WHILE DRIVING 55 MPH AND THE FRONT DRIVER'S SEAT DISCONNECTED FROM ITS SEAT TRACKS. THE CONTACT SUFFERED MINOR BRUISING ON HIS KNEES AS A RESULT. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THE CONTACT WAS INFORMED T…

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TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT HE QUICKLY APPLIED THE BRAKES WHILE DRIVING 55 MPH AND THE FRONT DRIVER'S SEAT DISCONNECTED FROM ITS SEAT TRACKS. THE CONTACT SUFFERED MINOR BRUISING ON HIS KNEES AS A RESULT. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THE CONTACT WAS INFORMED THAT THE PLASTIC PARTS ON THE SEAT ADJUSTER FRACTURED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 120,000. UPDATED 02/17/12 *BF THE DEALER INFORMED THE CONSUMER IT WOULD COST $ 816.OO TO FIX THE PROBLEM. UPDATED 02/22/12

NHTSA ODI #10446045

110,791 miles · Jan 28, 2012
Service Brakes, Hydraulic

I WAS LEAVING GIANT EAGLE GROCERY STORE. I PULLED OUT OF MY PARKING SPOT AND PULLED UP TO THE CROSSWALK. THERE WAS A MOTHER WITH HER TWO SMALL CHILDREN CROSSING. I PUT ON MY BRAKES TO STOP TO LET THEM CROSS AND THE PEDAL WENT TO THE FLOOR. THANKFULLY I PUT ON THE PARKING BRAKE AND STOPPED TWO FEET FROM RUNNING THEM OVER, I PULL…

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I WAS LEAVING GIANT EAGLE GROCERY STORE. I PULLED OUT OF MY PARKING SPOT AND PULLED UP TO THE CROSSWALK. THERE WAS A MOTHER WITH HER TWO SMALL CHILDREN CROSSING. I PUT ON MY BRAKES TO STOP TO LET THEM CROSS AND THE PEDAL WENT TO THE FLOOR. THANKFULLY I PUT ON THE PARKING BRAKE AND STOPPED TWO FEET FROM RUNNING THEM OVER, I PULLED TO THE SIDE AND LOOKED UNDER MY TRUCK AND SAW ONE OF THE BRAKE LINES FROM THE MASTER CYLINDER TO THE ABS MODULE WAS BLOWN OUT. ALL OF THE BRAKE LINES ON MY TRUCK ARE SEVERELY CORRODED. THIS IS THE SECOND BRAKE LINE FAILURE ON THIS TRUCK. ONE OF MY REAR BRAKE LINES FAILED DO TO CORROSION LAST YEAR. I PATCHED THAT ONE AND I'M GOING TO PATCH THIS ONE SINCE I DO NOT HAVE THE MONEY TO REPLACE ALL OF THE BRAKE LINES. IT'S JUST A MATTER OF WHEN NOT IF THE BRAKE LINES CAUSE MY DEATH OR SOME INNOCENT PEOPLE TO DIE WHEN I CRASH INTO THEM BECAUSE OF THESE CHEAP JUNK BRAKE LINES GM PUT ON THESE TRUCKS! *TR

NHTSA ODI #10445679

221,086 miles · Jan 24, 2012
Service Brakes, Hydraulic

ON JANUARY 11 2012 I WAS DRIVING MY CHEVROLET SILVERADO 1500 1999 HOME FROM WORK. IT WAS A CLEAR NIGHT WITH CLEAR ROAD CONDITIONS. I WENT TO HIT THE BRAKES, AND AS WAS THE CASE WHEN THE BRAKE LINES BLEW IN MY CHEVROLET SILVERADO 2500 2000 I FELT LITTLE TO NO PRESSURE BEFORE THE PEDAL SLAMMED TO THE FLOOR. I HAD TO USE THE EMERGE…

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ON JANUARY 11 2012 I WAS DRIVING MY CHEVROLET SILVERADO 1500 1999 HOME FROM WORK. IT WAS A CLEAR NIGHT WITH CLEAR ROAD CONDITIONS. I WENT TO HIT THE BRAKES, AND AS WAS THE CASE WHEN THE BRAKE LINES BLEW IN MY CHEVROLET SILVERADO 2500 2000 I FELT LITTLE TO NO PRESSURE BEFORE THE PEDAL SLAMMED TO THE FLOOR. I HAD TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE AND HAD TO PAY $300 FOR NEW LINES. THE REAR AXLE BRAKE LINES ON BOTH SIDES BLEW, AS WELL AS THE DRIVER'S SIDE FRONT BRAKE LINE GOING TO THE BRAKE CALIPER FROM THE BRAKE BOOSTER. I WOULD LIKE TO HAVE THE BRAKE LINES REPAIRED BY A DEALER AT NO COST TO ME, AS I HAD THEM DONE AT AN INDEPENDENT SHOP WITH AFTERMARKET PARTS. I HAVE FAITH IN GM, AND CONTINUE TO BUY NOTHING BUT GM PRODUCTS, AND WOULD LIKE MY PROBLEM REPAIRED WITH THE GM CUSTOMER SERVICE, RELIABILITY AND DURABILITY THAT I HAVE SEEN WITH GM PRODUCTS IN MY HISTORY OF OWNERSHIP. *TR

NHTSA ODI #10445137

203,000 miles · Jan 23, 2012
Service Brakes, Hydraulic

I HAD JUST FINISHED REPLACING THE REAR BRAKE CALIPERS, ROTORS AND PADS. (I CAN'T COUNT HOW MANY BRAKE JOBS I HAVE DONE IN MY CAREER). I WENT OUT FOR A TEST DRIVE. EVERYTHING FELT FINE UNTIL I MADE A HARD STOP. ALL OF A SUDDEN THE BRAKE PEDAL WENT TO THE FLOOR AND I HAD VIRTUALLY NO BRAKES AT ALL. I AM A BRAKE SYSTEMS ENGINEER WI…

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I HAD JUST FINISHED REPLACING THE REAR BRAKE CALIPERS, ROTORS AND PADS. (I CAN'T COUNT HOW MANY BRAKE JOBS I HAVE DONE IN MY CAREER). I WENT OUT FOR A TEST DRIVE. EVERYTHING FELT FINE UNTIL I MADE A HARD STOP. ALL OF A SUDDEN THE BRAKE PEDAL WENT TO THE FLOOR AND I HAD VIRTUALLY NO BRAKES AT ALL. I AM A BRAKE SYSTEMS ENGINEER WITH OVER 25 YEARS EXPERIENCE, SO I KNEW I HAD A SERIOUS PROBLEM. I PUT THE TRUCK BACK UP ON MY LIFT AND DISCOVERED THAT THE SOLID BRAKE LINE FROM THE ABS UNIT TO THE REAR AXLE HAD RUPTURED AND WAS LEAKING FLUID. I INVESTIGATED AND FOUND THAT IT WAS SEVERELY CORRODED. ALL THE OTHER BRAKE LINES ARE ALSO SEVERELY RUSTED AND APPEAR AS IF THEY COULD RUPTURE AT ANY MOMENT. I DROPPED THE FUEL TANK AND REPLACED THE RUPTURED LINE WITH A NEW ONE I FABRICATED. I DO THIS TYPE OF WORK ON NEARLY A DAILY BASIS SO I AM QUALIFIED TO DO SO. IT WAS VERY FORTUNATE THAT THIS HAPPENED IN A LIGHTLY TRAVELED OFFICE PARK AND NOT WHEN I REALLY NEEDED THE BRAKES OR IN TRAFFIC. IT IS MY PROFESSIONAL OPINION, AS AN AUTOMOTIVE CHASSIS SYSTEMS ENGINEER WITH NEARLY 30 YEARS EXPERIENCE IN THE BRAKE INDUSTRY, THAT THESE VEHICLES ARE UNSAFE TO DRIVE IF THEY HAVE SPENT ANY SIGNIFICANT TIME IN AN ENVIRONMENT OF EXCESSIVE MOISTURE OR WHERE SALT IS USED ON THE ROADS. THESE VEHICLES SHOULD BE RECALLED IMMEDIATELY BEFORE SOMEONE GETS SEVERELY INJURED OR WORSE. I WILL NO LONGER TRANSPORT MY FAMILY IN THIS VEHICLE. IF THIS HAD HAPPENED AT A BUSY INTERSECTION THE RESULT WOULD ALMOST DEFINITELY HAD BEEN A CRASH. *TR

NHTSA ODI #10444913

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.