Illustration08-02-2011 I SEE FORD RECALLED F150 FOR GAS TANK STRAP FAILURE. GM NEEDS TO ALSO. I HAVE A 1999 CHEVY SILVERADO. GAS TANK STRAP RUSTED THREW AND BROKE 07-26-2011. TANK DROPPED DOWN BUT NOT COMPLETELY OFF. *KB
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 →How this year compares
Owner complaints by model year
Compare all Silverado 1500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
130–25K
3725–50K
6150–75K
6275–100K
141100–150K
104150K+
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 reportsI OWN A 1999 CHEVY SILVERADO 1500, ONE OF THE BRAKE LINES BURST DURING HARD STOPPING WHICH RESULTED IN VIRTUALLY NO BRAKING CAPACITY. A CRASH WAS AVERTED BY STEERING PAST AND LUCKILY FORWARD CARS MOVING IN TIME. A MECHANICS CHECK OF THE SYSTEM REVEALED SEVERELY CORRODED BRAKE LINES AND OVERALL UNDERCARRIAGE CORROSION. ALL BRAKE …
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I OWN A 1999 CHEVY SILVERADO 1500, ONE OF THE BRAKE LINES BURST DURING HARD STOPPING WHICH RESULTED IN VIRTUALLY NO BRAKING CAPACITY. A CRASH WAS AVERTED BY STEERING PAST AND LUCKILY FORWARD CARS MOVING IN TIME. A MECHANICS CHECK OF THE SYSTEM REVEALED SEVERELY CORRODED BRAKE LINES AND OVERALL UNDERCARRIAGE CORROSION. ALL BRAKE LINES HAD TO BE REPLACED. NHTSA ACTION NUMBER : EA11001 *KB
I WAS BRAKING AND THE BRAKE PEDAL WENT TO THE FLOOR AND I HAD ABOUT 10% OF NORMAL BREAKING POWER. I LOOKED UNDER THE HOOD AND MY MASTER CYLINDER WAS ALMOST OUT OF BRAKE FLUID. I LOOKED UNDER THE TRUCK AND SAW FLUID LEAKING FROM A GROUP OF FOUR BRAKE LINES RUNNING UNDER THE DRIVE'S SIDE DOOR ALONG THE SIDE OF A FRAME BEAM. IT …
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I WAS BRAKING AND THE BRAKE PEDAL WENT TO THE FLOOR AND I HAD ABOUT 10% OF NORMAL BREAKING POWER. I LOOKED UNDER THE HOOD AND MY MASTER CYLINDER WAS ALMOST OUT OF BRAKE FLUID. I LOOKED UNDER THE TRUCK AND SAW FLUID LEAKING FROM A GROUP OF FOUR BRAKE LINES RUNNING UNDER THE DRIVE'S SIDE DOOR ALONG THE SIDE OF A FRAME BEAM. IT APPEARED AS EACH OF THE FOUR INDIVIDUAL LINES WERE RUNNING THROUGH A COILED WIRE. UPON FURTHER INVESTIGATION, I FOUND ONE OF THE LINES WITHOUT A COIL WIRE SURROUNDING IT AND IT WAS THE LEAKING LINE.
TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE FRAME WAS SEVERELY CORRODED AND THE VEHICLE WAS NO LONGER OPERABLE AS A RESULT. THE VEHICLE WAS TAKEN TO THE DEALER WHO DEEMED THE VEHICLE AS DESTROYED DUE TO THE SEVERITY OF THE FRAME RUST AND CORROSION. THE MANUFACTURER WAS MADE AWARE OF THE FAI…
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TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE FRAME WAS SEVERELY CORRODED AND THE VEHICLE WAS NO LONGER OPERABLE AS A RESULT. THE VEHICLE WAS TAKEN TO THE DEALER WHO DEEMED THE VEHICLE AS DESTROYED DUE TO THE SEVERITY OF THE FRAME RUST AND CORROSION. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO DID NOT OFFER ANY ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 120,000 AND THE CURRENT MILEAGE WAS 165,000.
1. BRAKE LINE TUBING CORROSION BLEW A HOLE IN THE BRAKE TUBING WHILE BRAKING TO MAKE A TURN. 2. BRAKE LINE FLUID DRAINED FROM MASTER CYLINDER, TRUCK CAN NOT BE DRIVEN, IT TOOK SOME SERIOUS DRIVING TO GET THE TRUCK SLOWED DOWN TO VEER INTO AN OPEN PARKING LOT BEFORE SLAMMING INTO A CAR IN FRONT OF ME. 3.THE TRUCK HAD TO BE TOW…
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1. BRAKE LINE TUBING CORROSION BLEW A HOLE IN THE BRAKE TUBING WHILE BRAKING TO MAKE A TURN. 2. BRAKE LINE FLUID DRAINED FROM MASTER CYLINDER, TRUCK CAN NOT BE DRIVEN, IT TOOK SOME SERIOUS DRIVING TO GET THE TRUCK SLOWED DOWN TO VEER INTO AN OPEN PARKING LOT BEFORE SLAMMING INTO A CAR IN FRONT OF ME. 3.THE TRUCK HAD TO BE TOWED AND IS NOW SITTING IN THE DRIVEWAY WITHOUT BRAKES. I HAVE BEEN READING ABOUT OTHER CHEVY SILVERADO OWNERS HAVING THIS SAME BRAKE LINE CORROSION FAILURE. *TT
WE WERE IN MY DRIVEWAY WITH A TRAILER AND BOAT ATTACHED AND PROCEEDING DOWN A HILL WHEN THE BRAKE PEDAL WENT TO THE FLOOR. FORTUNATELY, WE WERE GOING AT A SLOW SPEED AND ABLE TO STOP, THEN BACK UP. IF WE HAD BEEN ON THE HIGHWAY GOING 50 MPH AND NEEDED TO STOP QUICKLY, IT COULD HAVE BEEN A MUCH DIFFERENT STORY. UPON LOOKING UN…
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WE WERE IN MY DRIVEWAY WITH A TRAILER AND BOAT ATTACHED AND PROCEEDING DOWN A HILL WHEN THE BRAKE PEDAL WENT TO THE FLOOR. FORTUNATELY, WE WERE GOING AT A SLOW SPEED AND ABLE TO STOP, THEN BACK UP. IF WE HAD BEEN ON THE HIGHWAY GOING 50 MPH AND NEEDED TO STOP QUICKLY, IT COULD HAVE BEEN A MUCH DIFFERENT STORY. UPON LOOKING UNDER THE HOOD, IT WAS FOUND THAT ONE OF THE METAL BREAK LINES HAD RUPTURED AND WAS LEAKING BRAKE FLUID WHERE IT WAS RUSTED THROUGH CAUSING THE BRAKE PEDAL TO GO TO THE FLOOR. IT APPEARS THAT ALL THE BRAKE LINES HAVE SIGNIFICANT CORROSION THAT COULD CAUSE THEM TO RUPTURE DURING BRAKE APPLICATION. THIS IS A SAFETY ISSUE AS THE BRAKE PEDAL GOES TO THE FLOOR AND YOU HAVE LITTLE BRAKING POWER.
THE SEAT LATCH ON MY 1999 CHEVROLET SILVERADO 1500 BROKE ALLOWING THE SEAT TO MOVE FREELY. MY 16 YEAR OLD SON WAS DRIVING AT THE TIME AND NEARLY HAD AN ACCIDENT BECAUSE OF IT. THE EXACT SAME CONDITION OCCURRED WHEN THE TRUCK WAS NEARLY NEW (I AM THE ORIGINAL OWNER). THE DEALER FIXED THE SEAT ADJUSTER THE FIRST TIME. THIS IS A VE…
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THE SEAT LATCH ON MY 1999 CHEVROLET SILVERADO 1500 BROKE ALLOWING THE SEAT TO MOVE FREELY. MY 16 YEAR OLD SON WAS DRIVING AT THE TIME AND NEARLY HAD AN ACCIDENT BECAUSE OF IT. THE EXACT SAME CONDITION OCCURRED WHEN THE TRUCK WAS NEARLY NEW (I AM THE ORIGINAL OWNER). THE DEALER FIXED THE SEAT ADJUSTER THE FIRST TIME. THIS IS A VERY DANGEROUS DEFECT. THE REPLACEMENT PARTS MUST BE MORE ROBUST. AFTER READING ALL OF THE INCIDENTS OF THE SAME PROBLEMS ONLINE, I CANNOT BELIEVE THERE HAS NOT BEEN A RECALL. ARE YOU WAITING FOR A FATALITY? *TR
I OWN A 1999 CHEVY SILVERADO 1500 THAT HAS ABOUT 35,000 MILES ON IT. VIN# [XXX]. PULLING A TRAILER WITH A BOAT AND GOING DOWN A HILL, THE BRAKE PEDAL WENT TO THE FLOOR. FORTUNATELY, I WAS ABLE TO BACK UP. I FOUND THAT THE BRAKE LINE HAD RUSTED THROUGH. LOOKING AT ALL THE BRAKE LINES, I FIND THERE IS A TREMENDOUS AMOUNT OF R…
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I OWN A 1999 CHEVY SILVERADO 1500 THAT HAS ABOUT 35,000 MILES ON IT. VIN# [XXX]. PULLING A TRAILER WITH A BOAT AND GOING DOWN A HILL, THE BRAKE PEDAL WENT TO THE FLOOR. FORTUNATELY, I WAS ABLE TO BACK UP. I FOUND THAT THE BRAKE LINE HAD RUSTED THROUGH. LOOKING AT ALL THE BRAKE LINES, I FIND THERE IS A TREMENDOUS AMOUNT OF RUST ON ALL THE LINES. THIS IS A SAFETY PROBLEM. IF I HAD BEEN IN OTHER CIRCUMSTANCES THE FAILURE WOULD HAVE LED TO SERIOUS CONSEQUENCES OF HUMAN LIFE. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
0PULLED INTO A SHOPPING CENTER PARKING LOT FROM HIGHWAY. DROVE APPROXIMATELY100FT., WHEN THE BRAKES WERE APPLIED THE BRAKE PEDAL WENT TO FLOORBOARD. I WAS ABLE TO SLOW DOWN AND PULL INTO A PARKING SPACE AND STOP. LOOKED FOR ANY SIGNS OF LEAKING BRAKE FLUID BUT DID NOT SEE ANY. I WAS ABLE TO MAKE IT HOME (ABOUT 2 MILES). UPON …
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0PULLED INTO A SHOPPING CENTER PARKING LOT FROM HIGHWAY. DROVE APPROXIMATELY100FT., WHEN THE BRAKES WERE APPLIED THE BRAKE PEDAL WENT TO FLOORBOARD. I WAS ABLE TO SLOW DOWN AND PULL INTO A PARKING SPACE AND STOP. LOOKED FOR ANY SIGNS OF LEAKING BRAKE FLUID BUT DID NOT SEE ANY. I WAS ABLE TO MAKE IT HOME (ABOUT 2 MILES). UPON ARRIVING HOME I NOTICED LARGE AMOUNTS OF BRAKE FLUID IN THE RIGHT FRONT FENDER WELL AND ENGINE COMPARTMENT. UPON LOOKING FURTHER AND WIPING DOWN EXCESS BRAKE FLUID I NOTICED A HEAVY DRIP FROM STEEL BRAKELINE NEXT TO RADIATOR. HAVE NOT REPAIRED. *TR
FAILURE OF BRAKE LINE FEEDING REAR BRAKES. RUSTED THROUGH. THIS IS THE 2ND FAILURE. *TR
Official recalls
0No 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
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.