IllustrationABS OPERATION GOES INTO ANTI-LOCK AT LOW SPEEDS MAKING THE TRUCK HARD TO STOP . SENSORS AND PICK UPS CLEANED 12/1/04 . *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 reportsI HAVE A 2002 CHEVY 4X4 PICKUP THAT HAS INTRMITENT NO BRAKES AT SLOW SPEED 3 TO 10 MILES PER HOUR IT HAS HAPENED 3 TIMES IN THE LAST 2 WEEKS . THEY TELL ME THE FRONT WHEEL SPEED SENSORS ARE TO BLAME ?
I WAS PULLING INOT A PARKING SPACE AT DUNKIN DONUTS AND WHEN I APPLIED THE BRAKE TO STOP IT MADE A NOISE AS IF THE ANTI-LOCK SYSTEM WAS GOING TO KICK ON BUT IMMEDIATELY STOPPED AND MY BRAKE PEDAL FROZE STUCK AT THE TOP OF DEPRESSION LEAVING ME WITH NO BRAKE AT ALL. I HIT THE CEMENT STOP BUMPER POLE, LUCKILY IT WAS THERE, AND CAU…
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I WAS PULLING INOT A PARKING SPACE AT DUNKIN DONUTS AND WHEN I APPLIED THE BRAKE TO STOP IT MADE A NOISE AS IF THE ANTI-LOCK SYSTEM WAS GOING TO KICK ON BUT IMMEDIATELY STOPPED AND MY BRAKE PEDAL FROZE STUCK AT THE TOP OF DEPRESSION LEAVING ME WITH NO BRAKE AT ALL. I HIT THE CEMENT STOP BUMPER POLE, LUCKILY IT WAS THERE, AND CAUSED DAMAGE TO THE FRONT END OF MY TRUCK.(BUMPER & FRAMEWORK). GOOD THING THIS OCCURED HERE WITHIN A PARKING AREA AND NOT OUT ON THE ROAD AT AN INTERSECTION WHICH I JUST WENT THROUGH. THIS WAS THE FIRST TIME THIS HAS HAPPENED BUT IT MAKES ME VERY WEARY OF THE BRAKING SYSTEM. I DISCONNECTED THE FUSE TO THE ABS SYSTEM SO THIS WILL NOT OCCUR AGAIN UNTIL IT IS INVESTIGATED FURTHER. *TR
I HAVE A 2002 SILVERADO. THE ANTI-LOCK BRAKE SYSTEM ACTIVATES AT VERY LOW SPEEDS AS DESCRIBED IN NHTSA CAMPAIGN ID NUMBER 05V379000. I LIVE IN ILLINOIS BUT DID NOT RECEIVE A RECALL NOTICE FROM GM OR MY DEALER. I CALLED CHEVROLET AND THEY MAINTAIN THERE IS NO RECALL ON MY TRUCK. THIS IS A VERY DANGEROUS ISSUE. *TR
I HAVE A 2002 CHEVROLET SILVERADO Z-71 PICKUP TRUCK. I HAVE 105,000 MILES ON IT. WHEN I'M AT A LOW SPEED MY ANTI-LOCK BRAKES ACTIVATE FOR NO REASON AND THE TRUCK WONT STOP. I HAVE NEARLY BEEN IN SEVERAL ACCIDENTS. I HAVE REPLACED THE ROTORS AND BRAKES AND CLEANED AND REGREASED THE ABS SENSORS AND NOTHING HAS CHANGED. IM, FORCED …
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I HAVE A 2002 CHEVROLET SILVERADO Z-71 PICKUP TRUCK. I HAVE 105,000 MILES ON IT. WHEN I'M AT A LOW SPEED MY ANTI-LOCK BRAKES ACTIVATE FOR NO REASON AND THE TRUCK WONT STOP. I HAVE NEARLY BEEN IN SEVERAL ACCIDENTS. I HAVE REPLACED THE ROTORS AND BRAKES AND CLEANED AND REGREASED THE ABS SENSORS AND NOTHING HAS CHANGED. IM, FORCED TO TAKE MY VEHICLE TO THE DEALERSHIP FOR REPAIRS. AS IT TURNS OUT, THIS IS A COMMON PROBLEM ON CHEVY PICKUP TRUCKS. THIS IS A SERIOUS SAFETY MATTER AND NEEDS TO BE LOOKED INTO. *TR
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ABS LIGHT IN THE VEHICLE ILLUMINATED AND WHEN THAT OCCURRED THE BRAKES WOULD NOT STOP THE VEHICLE. HE ALSO NOTICED THAT THE FAILURE OCCURRED AT A LOW SPEED RANGE, 5 TO 20 MPH; HE FURTHER NOTED THAT THERE WAS A GRINDING NOISE. WHEN HE LIGHTLY TOUCHED…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ABS LIGHT IN THE VEHICLE ILLUMINATED AND WHEN THAT OCCURRED THE BRAKES WOULD NOT STOP THE VEHICLE. HE ALSO NOTICED THAT THE FAILURE OCCURRED AT A LOW SPEED RANGE, 5 TO 20 MPH; HE FURTHER NOTED THAT THERE WAS A GRINDING NOISE. WHEN HE LIGHTLY TOUCHED THE BRAKE PEDAL DURING THE FAILURE, THE VEHICLE WOULD THEN STOP BUT THE ABS LIGHT WOULD STAY ON LONGER. HE TOOK THE VEHICLE TO THE DEALER WHO STATED THAT THERE WAS CORROSION ON THE BRAKING SYSTEM. THE MANUFACTURER HAS NOT BEEN NOTIFIED AT THE TIME THE COMPLAINT WAS FILED. THE VEHICLE HAD NOT BEEN REPAIRED TO-DATE. THE CURRENT MILEAGE WAS 70,260. THE FAILURE MILEAGE WAS APPROXIMATELY 67,000. UPDATED 3/16/10 *CN UPDATED 05/10/10*JB
I AM THE ORIGINAL OWNER OF A 1500 SERIES, 2002 SILVERADO, RESIDING IN SOUTH FLORIDA. WHILE EXITING THE RAMP OFF THE HIGHWAY, AT 50 MPH, WITH A 7,600 POUND CAR TRAILER IN TOW, I DEPRESSED THE BRAKE PEDAL, AND IT WENT TO THE FLOOR! ONLY WITH THE USE OF THE MANUAL OVERRIDE OF MY ELECTRIC TRAILER BRAKES WAS I ABLE TO STOP, AVOIDING …
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I AM THE ORIGINAL OWNER OF A 1500 SERIES, 2002 SILVERADO, RESIDING IN SOUTH FLORIDA. WHILE EXITING THE RAMP OFF THE HIGHWAY, AT 50 MPH, WITH A 7,600 POUND CAR TRAILER IN TOW, I DEPRESSED THE BRAKE PEDAL, AND IT WENT TO THE FLOOR! ONLY WITH THE USE OF THE MANUAL OVERRIDE OF MY ELECTRIC TRAILER BRAKES WAS I ABLE TO STOP, AVOIDING A NEAR MISS COLLISION, AND A SERIOUS, PERHAPS FATAL ACCIDENT. IT WAS DETERMINED ONE OF THE BRAKE LINES LEAKED AND FAILED AS A "RUST AND CORROSION". THE VEHICLE HAD 52,300 AT THE TIME OF THE INCIDENT, AND IN FLORIDA SINCE PURCHASING NEW. WITH THE HELP OF A FRIEND, A TEMPORARY REPAIR WAS MADE USING A COMPRESSION FITTING TO ALLOW US TO CONTINUE OUR 90 MILE TRIP HOME. THE TRUCK WAS TAKEN TO THE DEALERSHIP WHO CONFIRMED "RUST AND CORROSION" WAS THE CAUSE, HOWEVER THERE WERE NO RECALLS, OR WARRANTY, AND I WOULD BE REQUIRED TO PAY THE COST OF $738.00 TO REPLACE ALL THE LINES. AT THAT TIME I HAD LITTLE CHOICE BUT TO AUTHORIZE THEM TO PROCEED. HOWEVER AFTER COMPLETION OF THE WORK AND MY INSPECTION, THE LINES WERE INSTALLED USING INTERCONNECTING FITTINGS, AT VARIOUS LOCATIONS, AND NOT CONTINUOUS LINES AS WAS ORIGINALLY SUPPLIED BY THE FACTORY, NOR WAS PLACEMENT. I NOW QUESTION THE SAFETY OF THE REPAIR. THE DEALERSHIP ADVISED THE WORK THEY PERFORMED WAS THE METHOD AUTHORIZED BY GM, AND CONTINUOUS LINES WERE NOT AVAILABLE FROM THE FACTORY. THIS IS PROBABLY BECAUSE GM DOES NOT OFFER THEM, AS THE BRAKE LINES SHOULD HAVE LASTED THE LIFE OF THE TRUCK. I HAVE CONCLUDED THAT THE MATERIAL USED FOR THE BRAKE LINES WERE OF VERY POOR QUALITY. I HAVE CONTACTED GM AND CONTINUE TO AWAIT A RESPONSE FROM THEIR ENGINEERING. THE DEALERSHIP HAS FURTHER ADVISED THERE WAS NOTHING FURTHER THEY COULD DO, AND THE GM AREA REPRESENTATIVE CONFIRMED THAT WITH THEM. I QUESTION IF IT TAKES A NUMBER OF DEATHS AS A RESULT OF POOR QUALITY BRAKE LINES BEFORE GM TAKES SOME ACTION. IN SEARCHING THE INTERNET, I HAVE FOUND MANY REPORTS RELATING TO THE SAME PROBLEM. SO, WHAT WILL GM DO? *TR
HI, I HAVE A 2002 CHEVY SILVERADO I BOUGHT BRAND NEW. TODAY I HIT THE BRAKES PULLING OUT OF MY DRIVEWAY AND THE BRAKE HIT THE FLOOR. THE LINE BLEW OUT. ALL OF MY LINES ARE RUSTED BADLY. IF YOU LOOK ON THE NET THERE ARE HUNDREDS OF POSTS RELATED TO THIS. WHY IS THIS NOT A RECALL? THIS COULD HAVE BEEN HORRIBLE AS I WAS ON MY WAY T…
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HI, I HAVE A 2002 CHEVY SILVERADO I BOUGHT BRAND NEW. TODAY I HIT THE BRAKES PULLING OUT OF MY DRIVEWAY AND THE BRAKE HIT THE FLOOR. THE LINE BLEW OUT. ALL OF MY LINES ARE RUSTED BADLY. IF YOU LOOK ON THE NET THERE ARE HUNDREDS OF POSTS RELATED TO THIS. WHY IS THIS NOT A RECALL? THIS COULD HAVE BEEN HORRIBLE AS I WAS ON MY WAY TO HAUL OUT MY 5,000 POUND BOAT! GM NEEDS TO ADDRESS THIS OR AT LEAST GET WORD OUT THEY USED CHEAP LINES AND PEOPLE CAN EASILY BE KILLED! JIM STACY *TR
WAS NOTIFIED OF THE BRAKES, ABS INADVERTENT ACTIVATION RECALL. TOOK THE VEHICLE IN AND NO ISSUES WERE FOUND RELATING TO THE RECALL. SEVERAL MONTHS LATER THE EXACT SYMPTOM DESCRIBED BY THE RECALL WAS HAPPENING. TOOK THE VEHICLE IN AGAIN AND WAS TOLD THAT I WOULD HAVE TO PAY FOR THE REPAIR EVEN THOUGH THE RECALL WAS CLEARLY THE CA…
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WAS NOTIFIED OF THE BRAKES, ABS INADVERTENT ACTIVATION RECALL. TOOK THE VEHICLE IN AND NO ISSUES WERE FOUND RELATING TO THE RECALL. SEVERAL MONTHS LATER THE EXACT SYMPTOM DESCRIBED BY THE RECALL WAS HAPPENING. TOOK THE VEHICLE IN AGAIN AND WAS TOLD THAT I WOULD HAVE TO PAY FOR THE REPAIR EVEN THOUGH THE RECALL WAS CLEARLY THE CAUSE. THE ABS ACTIVATES UNDER 8 MPH AND WHEN CRAWLING VERY SLOWLY IN HEAVY TRAFFIC. PEDAL GOES TO THE FLOOR. I REMOVED THE ABS FUSE TO AVOID LOW SPEED CRASH. HAS NOT BEEN REPAIRED TO DATE. *TR
VEHICLE WAS INVOLVED IN RECALL FOR FRONT ABS WHEEL SPEED SENSORS, RECALL WAS ALLEGEDLY PERFORMED 6/21/05. WHILE PULLING INTO A PARKING SPOT APPLIED BRAKES WHILE TURNING IN, ABS ENGAGED AT A LOW SPEED, APPROX. 2 MPH, AND VEHICLE WOULD NOT STOP, COLLIDED WITH TWO CONCRETE POSTS THAT WERE PROTECTING THE GAS METER FOR THE BUILDING …
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VEHICLE WAS INVOLVED IN RECALL FOR FRONT ABS WHEEL SPEED SENSORS, RECALL WAS ALLEGEDLY PERFORMED 6/21/05. WHILE PULLING INTO A PARKING SPOT APPLIED BRAKES WHILE TURNING IN, ABS ENGAGED AT A LOW SPEED, APPROX. 2 MPH, AND VEHICLE WOULD NOT STOP, COLLIDED WITH TWO CONCRETE POSTS THAT WERE PROTECTING THE GAS METER FOR THE BUILDING DAMAGING THE FRONT BUMPER AND IMPACT STRIP. I DO NOT BELIEVE THAT THE RECALL WAS EVER PERFORMED. VEHICLE IS A 2002 CHEVROLET SILVERADO EXTENDED CAB 4X4. *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.