IllustrationCORROSION ON BRAKE LINES IN ENGINE COMPARTMENT WITH ONE BRAKE LINE RUPTURING AND CAUSING A LOSS OFF BRAKES. *TR
2002 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2002 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
340–25K
4925–50K
7950–75K
10275–100K
124100–150K
55150K+
443 reports with mileage · 66 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. Review the 184 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 164 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 30 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
45 crash reports5 fire reports15 injury reports
Service Brakes, Hydraulic complaints
164 reports2002 CHEVROLET SILVERADO. 41,000 MILES. BRAKE LINES RUSTED OUT. NEARLY SMASHED INTO AN ENTIRE FAMILY WHEN I LOST BRAKES. DRIVING FOR 35 YEARS AND HAVE NEVER BEEN SO SCARED. SOMEONE PLEASE DO SOMETHING *TR
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING 40 MPH AND EXITING A RAMP. AS THE BRAKE WAS DEPRESSED, THE PEDAL WENT ALL THE WAY TO THE FLOORBOARD AND THE VEHICLE WOULD RESPOND TO THE CONTACTS BRAKING ATTEMPTS. THE CONTACT HAD TO ENGAGE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT WAS ABLE…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT WAS DRIVING 40 MPH AND EXITING A RAMP. AS THE BRAKE WAS DEPRESSED, THE PEDAL WENT ALL THE WAY TO THE FLOORBOARD AND THE VEHICLE WOULD RESPOND TO THE CONTACTS BRAKING ATTEMPTS. THE CONTACT HAD TO ENGAGE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE TO HIS RESIDENCE WHERE HE INSPECTED THE BRAKES AND DISCOVERED RUSTING OF THE STEEL LINES THAT CARRIED THE BRAKE FLUID. NEITHER THE DEALER NOR THE MANUFACTURER WAS CONTACTED IN REGARDS TO THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 80,000. UPDATED 02/03/11*LJ UPDATED 02/14/11
2002 CHEVY SILVERADO - BRAKE LIGHT INDICATOR CAME ON. CHECKED FLUID LEVELON MASTER CYLINDER - 1/2 EMPTY UPON FURTHER INSPECTION IDENTIFIED LEAK IN SECTION OF TUBING BEHIND FENDER WELL. TOOK TO LOCAL MECHANIC. BRAKES GAVE WAY AS HE PULLED INTO SHOP. HE INDICATED THAT ALL LINES WERE CORRODED BEHIND PLASTIC WHEEL WELL GUARD. R…
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2002 CHEVY SILVERADO - BRAKE LIGHT INDICATOR CAME ON. CHECKED FLUID LEVELON MASTER CYLINDER - 1/2 EMPTY UPON FURTHER INSPECTION IDENTIFIED LEAK IN SECTION OF TUBING BEHIND FENDER WELL. TOOK TO LOCAL MECHANIC. BRAKES GAVE WAY AS HE PULLED INTO SHOP. HE INDICATED THAT ALL LINES WERE CORRODED BEHIND PLASTIC WHEEL WELL GUARD. REPLACING ALL AFFECTED TUBING. *TR
2002 CHEVROLET SILVERADO 1500, 4 WHEEL DRIVE Z71 OFF ROAD, 58420 MILES, WAS STOPPED WITH FOOT DEPRESSED ON BRAKE PEDAL, FELT PEDAL GO ALL THE WAY TO THE FLOOR. HAD TO ACCELERATE AND HAD NO BRAKES. BRAKE FLUID LEAK DUE TO RUSTED BRAKE LINE. AFTER FURTHER INSPECTION ALL BRAKE LINES, FUEL LINES, EHCU BRAKE LINE CONNECTION ARE ALL …
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2002 CHEVROLET SILVERADO 1500, 4 WHEEL DRIVE Z71 OFF ROAD, 58420 MILES, WAS STOPPED WITH FOOT DEPRESSED ON BRAKE PEDAL, FELT PEDAL GO ALL THE WAY TO THE FLOOR. HAD TO ACCELERATE AND HAD NO BRAKES. BRAKE FLUID LEAK DUE TO RUSTED BRAKE LINE. AFTER FURTHER INSPECTION ALL BRAKE LINES, FUEL LINES, EHCU BRAKE LINE CONNECTION ARE ALL RUSTED. BRAKE LINE IS IN THE PROCESS OF BEING REPLACED BUT AT A STAND STILL AT THE MOMENT DUE TO A LEAK AT THE EHCU CONNECTION DUE TO PITTING, THERE ISN'T A TIGHT CONNECTION. STILL IN THE PROCESS OF REPAIRS. HAVE ALL PARTS. *TR
HAD SHOCKS REPLACED ON MY TRUCK TODAY AND MECHANIC INFORMED ME THAT BRAKE LINES ON MY 2002 CHEVROLET SILVERADO WERE RUSTED AND WOULD NEED TO BE REPLACED SOON FOR SAFETY REASONS. *TR
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE APPLYING THE BRAKES THE ANTI-LOCK BRAKE SYSTEM ACTIVATES. THIS CAUSES THE VEHICLE NOT TO STOP WHEN BRAKING. THE CONTACT TOOK THE VEHICLE TO A DEALER AND THE DEALER STATED THAT THE ISSUE IS WITH THE ANTI-LOCK BRAKES AND ONLY HAPPENS IN THE NORTH EAST OR SALT BELT ST…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. WHILE APPLYING THE BRAKES THE ANTI-LOCK BRAKE SYSTEM ACTIVATES. THIS CAUSES THE VEHICLE NOT TO STOP WHEN BRAKING. THE CONTACT TOOK THE VEHICLE TO A DEALER AND THE DEALER STATED THAT THE ISSUE IS WITH THE ANTI-LOCK BRAKES AND ONLY HAPPENS IN THE NORTH EAST OR SALT BELT STATES. THE DEALER STATED THE FRONT WHEEL SPEED SENSOR NEEDED TO BE REPLACED. THE CONTACT HAD THE FRONT WHEEL SPEED SENSOR REPLACED UNDER A RECALL THREE YEARS AGO. THE CONTACT STATED THIS IS A MAJOR SAFETY ISSUE THAT COULD CAUSE A CRASH. THE FAILURE MILEAGE WAS 21,538. THE CONSUMER BELIEVED THE PROBLEM WAS NOT PERFORMED CORRECTLY, THE FIRST TIME. UPDATED 01/20/11*JB UPDATED 01/28/11 *BF THE CONSUMER STATED WHEN THE ABS ACTIVATED, HE WAS ALMOST AT A COMPLETE STOP. UPDATED 02/04/11
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DECELERATING THE ANTI-LOCK BRAKES WOULD PULSATE, MAKING IT DIFFICULT TO STOP THE VEHICLE. THE DEALER WAS CONTACTED AND INFORMED HIM THAT THEY REPAIRED NHTSA CAMPAIGN RECALL, 05V379000, SERVICE BRAKES, HYDRAULIC ANTILOCK ONCE BEFORE AND THEY WERE U…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DECELERATING THE ANTI-LOCK BRAKES WOULD PULSATE, MAKING IT DIFFICULT TO STOP THE VEHICLE. THE DEALER WAS CONTACTED AND INFORMED HIM THAT THEY REPAIRED NHTSA CAMPAIGN RECALL, 05V379000, SERVICE BRAKES, HYDRAULIC ANTILOCK ONCE BEFORE AND THEY WERE UNABLE TO REPAIR IT AGAIN FOR FREE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 108,000.
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THE VEHICLE WAS TAKEN FOR STATE INSPECTION AND THE TECHNICIAN INFORMED THE CONTACT THAT THE EMERGENCY BRAKE WOULD NOT FUNCTION PROPERLY. THE FAILURE CAUSED THE REAR ROTORS TO WEAR PREMATURELY WHICH RESULTED IN THE REPLACEMENT OF THE ROTORS TWICE PRIOR TO BE…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THE VEHICLE WAS TAKEN FOR STATE INSPECTION AND THE TECHNICIAN INFORMED THE CONTACT THAT THE EMERGENCY BRAKE WOULD NOT FUNCTION PROPERLY. THE FAILURE CAUSED THE REAR ROTORS TO WEAR PREMATURELY WHICH RESULTED IN THE REPLACEMENT OF THE ROTORS TWICE PRIOR TO BEING INFORMED OF THE EMERGENCY BRAKE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 18,000.
WHILE HAVING MY 2002 CHEVY SILVERADO 1500 SERVICED FOR AN OIL CHANGE I WAS ADVISED THAT ALL THE STEEL BRAKE LINES WERE BADLY RUSTED, UNSAFE, AND NEEDED IMMEDIATE REPLACEMENT. INITIAL ESTIMATES ARE $2000. VEHICLE MILEAGE IS 98,000. *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.