← New search

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

Service Brakes, Hydraulic complaints

222 reports
Clear category filter
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…

Read full complaint

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…

Read full complaint

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

308,000 miles · Jan 13, 2012
Service Brakes, Hydraulic

TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHILE DRIVING 55 MPH HE DEPRESSED THE BRAKE PEDAL AND IT EXTENDED TO THE FLOOR. THE VEHICLE WAS THEN DRIVEN TO A LOCAL MECHANIC WHO INSPECTED THE VEHICLE WHO INFORMED HIM ONE OF THE BRAKE LINES WERE COVERED WITH RUST, CORRODED AND WAS LEAKING. THE MECHANIC…

Read full complaint

TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHILE DRIVING 55 MPH HE DEPRESSED THE BRAKE PEDAL AND IT EXTENDED TO THE FLOOR. THE VEHICLE WAS THEN DRIVEN TO A LOCAL MECHANIC WHO INSPECTED THE VEHICLE WHO INFORMED HIM ONE OF THE BRAKE LINES WERE COVERED WITH RUST, CORRODED AND WAS LEAKING. THE MECHANIC REPAIRED ALL OF THE BRAKE LINES AT THE CUSTOMER EXPENSE FOR $670. THE DEALER NOR MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 308,000.

NHTSA ODI #10443732

200,000 miles · Dec 1, 2011
Service Brakes, Hydraulic

TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING 10 MPH, THE BRAKE PEDAL WAS DEPRESSED INTO THE FLOORBOARD AND BRAKE FLUID SPEWED OUT FROM THE VEHICLE. AFTER INSPECTING THE VEHICLE, THE CONTACT NOTICED THAT ALL OF THE BRAKE LINES WERE CORRODED. THE VEHICLE WAS NOT TAKEN TO THE DEALER AN…

Read full complaint

TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING 10 MPH, THE BRAKE PEDAL WAS DEPRESSED INTO THE FLOORBOARD AND BRAKE FLUID SPEWED OUT FROM THE VEHICLE. AFTER INSPECTING THE VEHICLE, THE CONTACT NOTICED THAT ALL OF THE BRAKE LINES WERE CORRODED. THE VEHICLE WAS NOT TAKEN TO THE DEALER AND THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 200,000.

NHTSA ODI #10438024

69,850 miles · Nov 19, 2011
Service Brakes, Hydraulic

ON 11-10-11 I PURCHASED A PREOWNED SILVERADO 1500 LS TRUCK FROM CHAMPION CHEVROLET,3606 BRISTOL HIGHWAY, JOHNSON CITY, TN 37602. I WAS UNABLE TO TRY OUT THE TRUCK UNTIL THEY REPAIRED A LEAKING BRAKE LINE WHICH I WAS ADVISED HAD RUSTED.. AFTER PURCHASE I GOT IT HOME AND WAS EXAMINING THE UNDER FRAME ASSEMBLIES AND FOUND ALL THE …

Read full complaint

ON 11-10-11 I PURCHASED A PREOWNED SILVERADO 1500 LS TRUCK FROM CHAMPION CHEVROLET,3606 BRISTOL HIGHWAY, JOHNSON CITY, TN 37602. I WAS UNABLE TO TRY OUT THE TRUCK UNTIL THEY REPAIRED A LEAKING BRAKE LINE WHICH I WAS ADVISED HAD RUSTED.. AFTER PURCHASE I GOT IT HOME AND WAS EXAMINING THE UNDER FRAME ASSEMBLIES AND FOUND ALL THE STEEL BRAKE LINES ARE RUSTING PREMATURELY. THE DEALER HAD INSTALLED A PATCH LINE WHERE THE RUST RUPTURE HAD BEEN. THE TRUCK IS OTHERWISE RUST FREE AND IN EXCELLENT CONDITION. I REALIZE THERE IS NO WARRANTY OF FITNESS OF PURPOSE UNDER THE UNIFORM COMMERCIAL CODE FROM THE DEALER OR GM ON THIS VEHICLE, BUT THERE IS LIABILITY FOR DEFECTIVE DESIGN WHICH SURVIVES TO SUBSEQUENT OWNERS. I PLAN TO TOW A CARGO TRAILER WITH THE TRUCK AND AM AFRAID THERE WILL BE FURTHER BRAKE LINE FAILURE WHICH COULD CAUSE SERIOUS INJURY AND PROPERTY DAMAGE. I'VE NOW LEARNED THIS PROBLEM IS WIDESPREAD WITH THESE VEHICLES AND STRONGLY URGE A RECALL IN ORDER TO PROTECT THE DRIVING PUBLIC AND THE OWNERS OF THESE DEFECTIVE TRUCKS. *TR

NHTSA ODI #10436456

161,458 miles · Oct 25, 2011
Service Brakes, Hydraulic

I WAS SLOWING UP TO STOP AT THE STOPLIGHT AND WAS CLOSE TO STOPPING WHEN SUDDENLY MY BRAKE PEDAL WENT COMPLETELY DOWN TO THE FLOOR AND I HAD NO BRAKES. FORTUNATELY I WAS GOING SLOW AND MANAGED TO COME TO A ROLLING STOP. I HAD TO CALL FOR A TOW TRUCK TO TAKE MY VAN TO A REPAIR SHOP. THEY FOUND A CORRODED AND LEAKING BRAKE LINE. T…

Read full complaint

I WAS SLOWING UP TO STOP AT THE STOPLIGHT AND WAS CLOSE TO STOPPING WHEN SUDDENLY MY BRAKE PEDAL WENT COMPLETELY DOWN TO THE FLOOR AND I HAD NO BRAKES. FORTUNATELY I WAS GOING SLOW AND MANAGED TO COME TO A ROLLING STOP. I HAD TO CALL FOR A TOW TRUCK TO TAKE MY VAN TO A REPAIR SHOP. THEY FOUND A CORRODED AND LEAKING BRAKE LINE. THEY TOLD ME THAT THE REST OF THE BRAKELINES WERE ALSO VERY CORRODED BADLY AND WOULD LIKE ALSO NEED REPLACED DUE TO THE CORROSION. *TR

NHTSA ODI #10432828

92,000 miles · Oct 21, 2011
Service Brakes, Hydraulic

1999 CHEVY SILVERADO 1500. MOVING VEHICLE IN DRIVEWAY, PRESSED BRAKE PEDAL, WENT ALL THE WAY TO FLOOR. UPON INSPECTION FOUND MULTIPLE CORROSION POINTS IN STEEL BRAKE LINE, THAT RESULTED IN HOLES IN THE LINE. TWO CORROSION POINTS/HOLES LOCATED IN THE "CLIPS" THAT HOLD BRAKE LINE IN PLACE. ONE "CLIP" INSIDE THE MAIN ENGINE COMPART…

Read full complaint

1999 CHEVY SILVERADO 1500. MOVING VEHICLE IN DRIVEWAY, PRESSED BRAKE PEDAL, WENT ALL THE WAY TO FLOOR. UPON INSPECTION FOUND MULTIPLE CORROSION POINTS IN STEEL BRAKE LINE, THAT RESULTED IN HOLES IN THE LINE. TWO CORROSION POINTS/HOLES LOCATED IN THE "CLIPS" THAT HOLD BRAKE LINE IN PLACE. ONE "CLIP" INSIDE THE MAIN ENGINE COMPARTMENT, ANOTHER ON TOP OF THE FRAME WHERE LINE LEAVES ENGINE COMPARTMENT GOING TO REAR OF VEHICLE. *TR

NHTSA ODI #10432292

111,000 miles · Oct 20, 2011
Service Brakes, Hydraulic

WHEN PULLING UP TO A STOP LIGHT AT A CONGESTED INTERSECTION, I APPLIED THE BRAKES AND THE PEDAL WENT CLEAR TO THE FLOOR. AFTER INSPECTION I NOTICED I HAD A BROKEN BREAK LINE. UPON CLOSER INSPECTION IT APPEARED THAT SEVERAL WERE VERY CORRODED AND APPEAR READY TO BREAK AT ANY GIVEN TIME. THE TRUCK IS NOT A DAILY DRIVER AND I AV…

Read full complaint

WHEN PULLING UP TO A STOP LIGHT AT A CONGESTED INTERSECTION, I APPLIED THE BRAKES AND THE PEDAL WENT CLEAR TO THE FLOOR. AFTER INSPECTION I NOTICED I HAD A BROKEN BREAK LINE. UPON CLOSER INSPECTION IT APPEARED THAT SEVERAL WERE VERY CORRODED AND APPEAR READY TO BREAK AT ANY GIVEN TIME. THE TRUCK IS NOT A DAILY DRIVER AND I AVERAGE LESS THAN 8,000 MILES A YEAR ON IT. *TR

NHTSA ODI #10432288

Mileage unknown · Oct 12, 2011
Service Brakes, Hydraulic

1999 CHEVY SILVERADO 1500 2WD, I HAVE NO ABS BRAKES HAVE NOT HAD THEM FOR YEARS THE ABS MODULE WENT OUT THE TRUCK WAS BARLEY 6 YEARS OLD TO EXPENSIVE TO FIX. *KB

NHTSA ODI #10429949

118,710 miles · Oct 11, 2011
Parking BrakeService Brakes, Hydraulic

ALL THIS DUE TO RUSTED OUT BRAKE LINES. ON 3/9/10 I WAS APPROACHING A STOP SIGN IN A 35MPH ZONE. I PUT MY FOOT ON THE BRAKE PEDAL AND THE PEDAL WENT TO THE FLOOR. I WAS ABLE TO GIVE IT A FEW PUMPS AND I STOPPED IN TIME. I IMMEDIATELY DROVE 4 BLOCKS TO AUTO SHOP. THE MECHANIC FOUND A RUPTURED BRAKE LINE GOING TO THE BACK BRAKE…

Read full complaint

ALL THIS DUE TO RUSTED OUT BRAKE LINES. ON 3/9/10 I WAS APPROACHING A STOP SIGN IN A 35MPH ZONE. I PUT MY FOOT ON THE BRAKE PEDAL AND THE PEDAL WENT TO THE FLOOR. I WAS ABLE TO GIVE IT A FEW PUMPS AND I STOPPED IN TIME. I IMMEDIATELY DROVE 4 BLOCKS TO AUTO SHOP. THE MECHANIC FOUND A RUPTURED BRAKE LINE GOING TO THE BACK BRAKES DUE TO RUST. FOUR DAYS LATER I HAD TO RETURN MY TRUCK TO THE SHOP BECAUSE MY BACK BRAKES WERE STICKING. I WAS INFORMED THAT RUST AND CORROSION HAD GOTTEN INTO THE BACK HOSES AND/OR CALIPERS AND WOULD NOT RELEASE PROPERLY. AT THAT TIME HE REPLACED THE REAR HOSES AND CALIPERS. ON 10/2/11 I HAD BRAKE FAILURE AGAIN. THIS TIME IT WAS THE FRONT BRAKES. MY MECHANIC INFORMED ME THAT IT WAS A BRAKE LINE COMING OFF THE ABS UNIT IN THE FRONT OF THE TRUCK. THERE ARE FIVE BRAKE LINES IN THAT AREA AND THEY WERE ALL RUSTED. HE SAID HE WOULD HAVE TO REPLACE ALL OF THEM BECAUSE THEY WOULD EVENTUALLY FAIL. AT THAT TIME, THE FRONT BRAKE CALIPERS WERE SO RUSTED THAT HE COULD NOT BLEED THE BRAKES, AND HE SUGGESTED TO REPLACE THE HOSES AND CALIPERS AND ALL FIVE BRAKE LINES, WHICH I DID. HE ALSO TOLD ME THERE IS A CROSS BRACE ON THE FRAME THAT WAS ALMOST RUSTED THRU AND NEEDED TO BE TAKEN TO A WELDER TO BE FIXED. *KB

NHTSA ODI #10429456

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.