IllustrationTHE IGNITION IS NOT WORKING RIGHT
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
Steering complaints
25 reportsAT LOW SPEEDS MY 2002 CHEVY 4WD WILL NOT TURN TO THE RIGHT. LEFT DOES NOT SEEM TO BE AFFECTED. I HAVE REPLACED THE BELT, AND THE BELT TENSIONER, AND THE IDLER PULLY WITH NO CHANGE TO THE STEERING. I ALSO HAVE REPLACED THE POWER STEERING FLUID ON A REGULAR BASIS (50,000 MILES BETWEEN). I WAS ABOUT TO REPLACE THE POWER STEERING PU…
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AT LOW SPEEDS MY 2002 CHEVY 4WD WILL NOT TURN TO THE RIGHT. LEFT DOES NOT SEEM TO BE AFFECTED. I HAVE REPLACED THE BELT, AND THE BELT TENSIONER, AND THE IDLER PULLY WITH NO CHANGE TO THE STEERING. I ALSO HAVE REPLACED THE POWER STEERING FLUID ON A REGULAR BASIS (50,000 MILES BETWEEN). I WAS ABOUT TO REPLACE THE POWER STEERING PUMP WHEN I FOUND THAT OTHERS HAVE HAD PROBLEMS WITH THE RACK AND PINION. I AM HOPING THIS REPORT WILL CONVINCE GM TO ISSUE A RECALL. TRUCK HAS APPROXIMATELY 107,000 MILES.
I HAVE A 2002 CHEVY SILVERADO 1500 TRUCK, AND HAD A NEW SET OF TIRES (OEM SIZE), A NEW NAPA HUB BEARING ASSEMBLY AND A NEW NAPA INNER TIE ROD. THIS WORK WAS PROFESSIONALLY INSTALLED BY A CERTIFIED ASE MECHANIC AT A LOCAL REPAIR SHOP ON JULY 3, 2013. THE TIE ROD FAILED ON JULY 29, 2013. THE HUB BEARING AND THE INNER TIE ROD WER…
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I HAVE A 2002 CHEVY SILVERADO 1500 TRUCK, AND HAD A NEW SET OF TIRES (OEM SIZE), A NEW NAPA HUB BEARING ASSEMBLY AND A NEW NAPA INNER TIE ROD. THIS WORK WAS PROFESSIONALLY INSTALLED BY A CERTIFIED ASE MECHANIC AT A LOCAL REPAIR SHOP ON JULY 3, 2013. THE TIE ROD FAILED ON JULY 29, 2013. THE HUB BEARING AND THE INNER TIE ROD WERE REPLACED DUE TO NORMAL WEAR. THANKFULLY - THIS HAPPENED WHILE I WAS BACKING OUT OF MY DRIVEWAY AND NOT LAST WEEKEND DOING 70 MPH ON THE HIGHWAY WITH MY FAMILY IN MY TRUCK. FAILURE OF THIS PART ON THE HIGHWAY COULD HAVE COST ME MY LIFE, MY FAMILY'S LIVES AND THE LIVES OF EVERYONE ELSE IN MY UNINTENDED PATH. VEHICLE WAS "REPAIRED" BY THE LOCAL SHOP IN THE DRIVEWAY AND THEY SHOWED UP WITH A REPLACEMENT NAPA INNER TIE ROD. I SEE ON THE BOX THAT THIS PART IS MANUFACTURED IN CHINA. I DID NOT WANT THAT PART ON MY VEHICLE AND TOLD THEM THEY COULD INSTALL IT FOR A ONE-TIME TRIP TO THE SHOP BUT THEN I WANT IT CHANGED TO ANOTHER BRAND. THEY OBLIGED AND FOUND ANOTHER MANUFACTURER. THE NAPA PART IS ES3478 - INNER TIE ROD. *TR
TOOK TRUCK IN FOR STATE INSPECTION, TRUCK FAILED INSPECTION DUE TO RUSTED BRAKE LINES, POWER STEERING PUMP LEAKING , DEALER SAID IT WOULD BE $1228.43 TO $1420.99 TO JUST FIXED THE BRAKE LINES ALL LINES NEEDED REPLACED AND CALIPERS SCREWS. POWER STEERING PUMP COST 535.00 TO REPLACE. POOR QUALITY ,HIGH COST TO FIX AND LACK OF SA…
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TOOK TRUCK IN FOR STATE INSPECTION, TRUCK FAILED INSPECTION DUE TO RUSTED BRAKE LINES, POWER STEERING PUMP LEAKING , DEALER SAID IT WOULD BE $1228.43 TO $1420.99 TO JUST FIXED THE BRAKE LINES ALL LINES NEEDED REPLACED AND CALIPERS SCREWS. POWER STEERING PUMP COST 535.00 TO REPLACE. POOR QUALITY ,HIGH COST TO FIX AND LACK OF SAFETY ON GM PART FOR NOT COVERING RUBBER COATING OR USING STAINLESS STEEL LINES TO PROTECT OUR FAMILY VERY DISCOURAGED WITH SERVICE TECH SAID THESE ARE THE PRICES. WHAT HAPPENED TO OUR SAFETY. BRAKE LINES AND GAS LINES SHOULD NOT BE MADE OF STEEL THAT CAN CORRODE AND RUST OUT AND BREAK. POWER STEERING PUMP WITH THESE FEW MILES SHOULD NOT HAVE GONE OUT. MY 1988 CHEVY TRUCK NEVER HAD THESE PROBLEMS. THERE NEEDS TO BE A RECALL. *TR
STEERING SHAFT MAKES NOISES ON TURNS AND BUMPY ROADS. *TR
WHEN I TURN OR HIT A BUMP IT MAKES A CLUNK, AND YOU CAN HEAR IT AND FEEL IT THROUGH THE STEERING WHEEL, NOW HAVE 119000 MILES ON IT. I AM CONSURNED IT MY BECOME A SAFETY ISSUE. *TR
VEHICLE WAS TAKEN TO DEALER REGARDING THIS ISSUE AT 35000 MILES, IN 2004. THEY COULD FIND NOTHING WRONG. I FOUND THAT THIS WAS A COMMON PROBLEM INVOLVING ONLY THE 2002 MODEL. THE DEALER SAID IT WAS NOT A SAFETY PROBLEM, JUST AN ANNOYANCE I WOULD HAVE TO LIVE WITH. I STILL OWN THIS VEHICLE NOW IN 2012 AND STILL SEE MANY COMPLAINT…
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VEHICLE WAS TAKEN TO DEALER REGARDING THIS ISSUE AT 35000 MILES, IN 2004. THEY COULD FIND NOTHING WRONG. I FOUND THAT THIS WAS A COMMON PROBLEM INVOLVING ONLY THE 2002 MODEL. THE DEALER SAID IT WAS NOT A SAFETY PROBLEM, JUST AN ANNOYANCE I WOULD HAVE TO LIVE WITH. I STILL OWN THIS VEHICLE NOW IN 2012 AND STILL SEE MANY COMPLAINTS, INEFFECTIVE REPAIRS REPORTED, AND PEOPLE NOT UNDERSTANDING WHY GM HAS NOT DONE A RECALL, OR ISSUED ANY BULLETINS. WHY IS IT ONLY THE 2002 MODEL HAD THIS PROBLEM ? I HESITATE LETTING ANYONE ELSE DRIVE THE TRUCK DUE TO SAFETY CONCERNS IT SHOULD BE RECALLED. *TR
THIS MODEL PICKUP HAD A NOISY INTERMEDIATE STEERING SHAFT REPLACED IN MID 2004 AND THE REPLACEMENT MADE THE SAME CLUCKING NOISE SHORTLY AFTER AND WE WERE TOLD TO WAIT UNTIL A FIX THAT WOULD LAST WAS ENGINEERED. WE LATER FOUND GM HAD A FIX BUT OUR EXTENDED WARRANTY IN DEC 2007 WAS OVER AND THE SERVICE BULLETIN THAT WOULD FIX THI…
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THIS MODEL PICKUP HAD A NOISY INTERMEDIATE STEERING SHAFT REPLACED IN MID 2004 AND THE REPLACEMENT MADE THE SAME CLUCKING NOISE SHORTLY AFTER AND WE WERE TOLD TO WAIT UNTIL A FIX THAT WOULD LAST WAS ENGINEERED. WE LATER FOUND GM HAD A FIX BUT OUR EXTENDED WARRANTY IN DEC 2007 WAS OVER AND THE SERVICE BULLETIN THAT WOULD FIX THIS COULD NOT BE DONE FREE. THIS NOISE WAS COMMON AND IT IS LOUD ENOUGH TO MASK OTHER NOISES THAT COULD CAUSE A WRECK OR LOSS OF CONTROL. GM SHOULD HAVE A RECALL SO THEY CAN FIX A FAILED COMPONENT THAT FINALLY THEY GOT RIGHT. FAILED COMPONENT WAS INTERMEDIATE STEERING SHAFT LOOSE AND NOISY. YES, I AM I CERTIFIED MECHANIC SINCE 1958. BAD SPELLING BUT A GOOD MECHANIC.
2002 CHEVROLET SILVERADO K1500. CONSUMER STATES DEFECTIVE PART IN STEERING COLUMN *TGW THE CONSUMER STATED SINCE 2002 THE INTERMEDIATE SHAFT HAS BEEN REPAIRED FIVE TIMES, TO ELIMINATE THE RATTLE WHEN TURNING THE STEERING WHEEL OR WHEN GOING OVER A BUMP. THE CONSUMER STATED HE LOCATED A GM SERVICE BULLETIN REGARDING THE INTERMED…
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2002 CHEVROLET SILVERADO K1500. CONSUMER STATES DEFECTIVE PART IN STEERING COLUMN *TGW THE CONSUMER STATED SINCE 2002 THE INTERMEDIATE SHAFT HAS BEEN REPAIRED FIVE TIMES, TO ELIMINATE THE RATTLE WHEN TURNING THE STEERING WHEEL OR WHEN GOING OVER A BUMP. THE CONSUMER STATED HE LOCATED A GM SERVICE BULLETIN REGARDING THE INTERMEDIATE SHAFT. *JB
THE INTERMEDIATE STEERING SHAFT HAS A CLUNKING/KNOCKING NOISE WHEN TURNING WHEELS AT LOW SPEEDS. *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.