NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
468 reports67,976 miles · May 13, 2008
Service Brakes, Hydraulic
ANTILOCK BRAKES WERE TARGET OF RECALL AND THE REQUIRED SERVICE WAS PERFORMED IN 2005. VEHICLE IS CURRENTLY EXHIBITING THE SAME CONDITIONS THE RECALL WAS INTENDED TO FIX, ANTILOCK BRAKES ACTIVATING AT SLOW SPEEDS WHEN NOT NECESSARY. THE NOISE PRODUCED WHEN THE ANTILOCK BRAKES ARE ACTIVATES WAS PRODUCED AT HIGHWAY SPEEDS YESTERD…
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ANTILOCK BRAKES WERE TARGET OF RECALL AND THE REQUIRED SERVICE WAS PERFORMED IN 2005. VEHICLE IS CURRENTLY EXHIBITING THE SAME CONDITIONS THE RECALL WAS INTENDED TO FIX, ANTILOCK BRAKES ACTIVATING AT SLOW SPEEDS WHEN NOT NECESSARY. THE NOISE PRODUCED WHEN THE ANTILOCK BRAKES ARE ACTIVATES WAS PRODUCED AT HIGHWAY SPEEDS YESTERDAY WHEN THE BRAKE PEDAL WAS NOT TOUCHED. THE VEHICLE DID NOT REDUCE SPEED. I AM CONCERNED ABOUT A TOTAL BRAKE FAILURE AND HAVE CONTACTED CHEVROLET. *TR
NHTSA ODI #10227606
68,549 miles · May 9, 2008
Tires
MY SPARE TIRE SUPPORT SYSTEM FAILED CAUSING THE TIRE TO FALL FROM UNDERNEATH THE VEHICLE. I WAS TRAVEL AT ABOUT 45 MPH, LUCKILY NO ONE WAS BEHIND ME AT THE TIME. THE TIRE BOUNCED UP OFF THE PAVEMENT BUT STAYED IN MY LANE. THIS SUPPORT SYSTEM USES A 3/16" WIRE FOR IT SUPPORTING THE WEIGHT OF THE SUSPENDED TIRE. ARE THERE ANY REC…
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MY SPARE TIRE SUPPORT SYSTEM FAILED CAUSING THE TIRE TO FALL FROM UNDERNEATH THE VEHICLE. I WAS TRAVEL AT ABOUT 45 MPH, LUCKILY NO ONE WAS BEHIND ME AT THE TIME. THE TIRE BOUNCED UP OFF THE PAVEMENT BUT STAYED IN MY LANE. THIS SUPPORT SYSTEM USES A 3/16" WIRE FOR IT SUPPORTING THE WEIGHT OF THE SUSPENDED TIRE. ARE THERE ANY RECALLS ON THIS SUPPORT SYSTEM? [XXX] *TR INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10227153
60,000 miles · Apr 21, 2008
Service Brakes, HydraulicFire
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 55 MPH, THE ABS LIGHT ILLUMINATED AND THE CONTACT SMELLED SOMETHING BURNING. HE THEN NOTICED SMOKE AND FLAMES BILLOWING FROM UNDER THE FRAME OF THE DRIVER'S SEAT. THE VEHICLE HAS NOT BEEN INSPECTED BY THE DEALER OR A MECHANIC. THE CURRENT AND FAILURE MILEAGE…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE DRIVING 55 MPH, THE ABS LIGHT ILLUMINATED AND THE CONTACT SMELLED SOMETHING BURNING. HE THEN NOTICED SMOKE AND FLAMES BILLOWING FROM UNDER THE FRAME OF THE DRIVER'S SEAT. THE VEHICLE HAS NOT BEEN INSPECTED BY THE DEALER OR A MECHANIC. THE CURRENT AND FAILURE MILEAGES WERE 60,000. UPDATED 05/08/08. *LJ THE ANIT-LOCK BRAKE MOTOR AND WIRES FROM THE MOTOR CAUGHT ON FIRE, BUT NEVER BLEW A FUSE. UPDATED 05/09/08
NHTSA ODI #10225209
80,000 miles · Apr 20, 2008
Fuel System, Other
FUEL GAUGE WILL DROP TO SHOW EMPTY WHEN IT'S NOT. WILL ALSO "BOUNCE" IRRADICALLY FROM EMPTY TO RANDOM LEVELS. *TR
NHTSA ODI #10225177
80,000 miles · Apr 8, 2008
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE APPROACHING AN INTERSECTION WITH THE BRAKE PEDAL DEPRESSED, THE ABS ACTIVATED PREMATURELY. AS A RESULT, THE VEHICLE TOOK APPROXIMATELY TEN EXTRA FEET TO STOP. THE FAILURE HAS OCCURRED APPROXIMATELY SIX TIMES. THE VEHICLE HAS NOT BEEN DIAGNOSED. THE SPEED WAS UNKNOWN…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE APPROACHING AN INTERSECTION WITH THE BRAKE PEDAL DEPRESSED, THE ABS ACTIVATED PREMATURELY. AS A RESULT, THE VEHICLE TOOK APPROXIMATELY TEN EXTRA FEET TO STOP. THE FAILURE HAS OCCURRED APPROXIMATELY SIX TIMES. THE VEHICLE HAS NOT BEEN DIAGNOSED. THE SPEED WAS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 80,000.
NHTSA ODI #10223681
Mileage unknown · Mar 25, 2008
Service Brakes, Electric
I HAVE A 2001 CHEVY SILVERADO. AT ABOUT 70,000 MILES (2.5 YRS AGO) BOTH THE EMERGENCY BRAKE AND THE ABS DASH LIGHTS BECAME TO COME ON SIMULTANEOUSLY. I HAVE IN THE PAST FEW YEARS MADE SEVERAL BRAKE PAD REPLACEMENTS AND REPLACED THE EMERGENCY BRAKE. I HAVE ALSO SPOKEN WITH SEVERAL RETAIL AUTOMOTIVE CENTERS AND RECEIVED NO POSI…
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I HAVE A 2001 CHEVY SILVERADO. AT ABOUT 70,000 MILES (2.5 YRS AGO) BOTH THE EMERGENCY BRAKE AND THE ABS DASH LIGHTS BECAME TO COME ON SIMULTANEOUSLY. I HAVE IN THE PAST FEW YEARS MADE SEVERAL BRAKE PAD REPLACEMENTS AND REPLACED THE EMERGENCY BRAKE. I HAVE ALSO SPOKEN WITH SEVERAL RETAIL AUTOMOTIVE CENTERS AND RECEIVED NO POSITIVE RESOLUTION. STILL THE LIGHTS CONTINUE TO COME ON. IT WASN'T UNTIL TODAY THAT I LEARNED ABOUT THE ELECTRONIC BRAKE CONTROL MODULE. TO THINK THAT I HAD BEEN DRIVING WITH OUT ABS FOR ALMOST 3 YEARS NOW. UPON TRYING TO OBTAIN SOME INFORMATION ON THE PRODUCT AND THE PROBLEM, I WAS SHOCKED AND ANGRY TO FIND SO MANY FORUMS AND SITES WHERE THIS SAME PROBLEM IS HAPPENING TO SO MANY OTHER PEOPLE. IT APPEARS THAT THIS IS WIDE SPREAD PROBLEM WITH NO EASY SOLUTION. FROM A DEALER THE COST OF REPAIR IS AROUND $1500. I HAVE DONE A LOT OF MY OWN WORK ON MY TRUCK, AND AM FRUSTRATED THAT A SMALL ELECTRICAL COMPONENT WILL IN THE END COST ME THE GREATEST AMOUNT OF MONEY AND FRUSTRATION. SUCH AN INTREGAL COMPONENT, WITH A VERY IMPORTANT PURPOSE (BRAKES), SHOULD HAVE A LONGER OPERATING LIFE OR BE MADE MORE AVAILABLE AND AFFORDABLE FOR REPLACEMENT. AT LEAST IT SHOULD BE COVERED BY A WARRANTY. *TR
NHTSA ODI #10222293
71,156 miles · Mar 23, 2008
Service Brakes, Hydraulic
ANTI-LOCK BRAKE MODULE IS RUNNING CONSTANTLY. THE WHEEL SPEED SENSOR RECALL WAS PERFORMED ON MY TRUCK A COUPLE OF YEARS AGO. I HAD TO PULL THE FUSE ON THE ABS SYSTEM TO GET THE MODULE TO STOP RUNNING. IT WAS RUNNING EVEN WITH THE ENGINE OFF AND KEY REMOVED!! NOW THE ABS LIGHT AND BRAKE SYSTEM LIGHT ARE ON CONSTANTLY. I SHOULD NO…
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ANTI-LOCK BRAKE MODULE IS RUNNING CONSTANTLY. THE WHEEL SPEED SENSOR RECALL WAS PERFORMED ON MY TRUCK A COUPLE OF YEARS AGO. I HAD TO PULL THE FUSE ON THE ABS SYSTEM TO GET THE MODULE TO STOP RUNNING. IT WAS RUNNING EVEN WITH THE ENGINE OFF AND KEY REMOVED!! NOW THE ABS LIGHT AND BRAKE SYSTEM LIGHT ARE ON CONSTANTLY. I SHOULD NOT HAVE TO PAY $1,000.00+ TO GET THIS FIXED WHEN SO MANY OTHER OWNERS ARE HAVING THE SAME PROBLEM. I CAN DRIVE THE TRUCK, THE BRAKES ARE WORKING BUT I AM NOT SURE THAT IT IS SAFE. THANK YOU FOR ADDING THIS DEFECT TO YOUR DATABASE. *TR
NHTSA ODI #10222062
18,600 miles · Mar 4, 2008
EquipmentService Brakes, Hydraulic
I BOUGHT A NEW CHEVY SILVERADO 1500 4X4 IN JULY OF 2001. I DON'T DRIVE IT THAT MUCH, AND WHEN I DO, IT IS MOSTLY FREEWAY MILES. ABOUT 5 TIMES/YEAR I'LL TOW A LIGHT BOAT TO PUGET SOUND, AND AFTER COMING BACK ALWAYS HOSE OFF THE BOAT, TRAILER, AND SALT WATER EXPOSED AREA OF THE TRUCK. IN 2004 AT 6770 MILES, THE REAR ROTORS, CALIPE…
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I BOUGHT A NEW CHEVY SILVERADO 1500 4X4 IN JULY OF 2001. I DON'T DRIVE IT THAT MUCH, AND WHEN I DO, IT IS MOSTLY FREEWAY MILES. ABOUT 5 TIMES/YEAR I'LL TOW A LIGHT BOAT TO PUGET SOUND, AND AFTER COMING BACK ALWAYS HOSE OFF THE BOAT, TRAILER, AND SALT WATER EXPOSED AREA OF THE TRUCK. IN 2004 AT 6770 MILES, THE REAR ROTORS, CALIPERS AND PADS WERE RUINED (UNDER WARRANTY--CAUSE DETERMINED TO BE DEBRIS CAUGHT UP IN MECHANISM). GOOD CHEVROLET FIXED PERFECTLY. NOW IN MARCH 2008 AT ONLY 18,700 MILES (12K MILES ON NEW BRAKES), THE REAR BRAKES NEED TO BE COMPLETELY REBUILT. GOOD IS SAYING THE CAUSE IS SALT WATER. AND OF COURSE THE WARRANTY IS LONG OVER----LOOKING AT $2000 TO FIX. I SAY HOGWASH! BRAKES SHOULD NOT FALL APART AFTER 12,000 GENTLE MILES. I DON'T FOUR WHEEL DRIVE EXCEPT ON RARE OCCASION TO GET OVER THE MOUNTAIN PASS---AND THAT'S ON SNOW. I AM EASY WITH THIS TRUCK. I DON'T SPEED AROUND AND SLAM ON THE BRAKES EVER. NEVER. I AM PRETTY SURE THIS IS A COMMON PROBLEM. JUST GOOGLED UP A SIMILAR CASE OF A 2002 SILVERADO IN COLORADO WITH 28,000 MILES AND COMPLETE BRAKE FAILURE DUE TO RUST. I'LL REPAIR BRAKES ELSEWHERE. I'LL WAIT AND SEE IF SOME CLASS ACTION LAWSUIT COMES OF THIS. IT'S TOO BAD. THE TRUCK IS PRETTY NICE, BUT HAVING BRAKES FALL APART FOR NO GOOD REASON IS BS AND TOO EXPENSIVE, NOT TO MENTION AS WELL AS A BIG SAFETY CONCERN. *TR
NHTSA ODI #10220040
10,000 miles · Mar 3, 2008
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 1500. WHILE APPLYING THE BRAKES AT APPROXIMATELY 10 MPH, THE ANTILOCK BRAKE SYSTEM ACTIVATED. THE CONTACT STATED THAT THE FAILURE USUALLY OCCURRED ON DRY ROAD SURFACES. THE DEALER HAD NOT BEEN NOTIFIED. THE FAILURE MILEAGE WAS 10,000 AND CURRENT MILEAGE WAS 70,000.
NHTSA ODI #10219983
Mileage unknown · Feb 26, 2008
TiresCrashInjury
DRIVING ON THE FREEWAY DOING 50MPH IS A SEVERE STORM WHEN THE RIGHT REAR TIRE SUFFERED A BELT SEPARATION CAUSING SPIN AND HITTING BACKWARDS INTO A CONCRETE CENTER DIVIDE. THE COLLISION WITH THE DIVIDE CAUSED OVER $7500 WORTH OF DAMAGE. IT WAS REPORTED TO THE MANUFACTURER - THIS TIRE WAS A SUPER SWAMPER RADIAL TSL 33X14.5 R16 WI…
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DRIVING ON THE FREEWAY DOING 50MPH IS A SEVERE STORM WHEN THE RIGHT REAR TIRE SUFFERED A BELT SEPARATION CAUSING SPIN AND HITTING BACKWARDS INTO A CONCRETE CENTER DIVIDE. THE COLLISION WITH THE DIVIDE CAUSED OVER $7500 WORTH OF DAMAGE. IT WAS REPORTED TO THE MANUFACTURER - THIS TIRE WAS A SUPER SWAMPER RADIAL TSL 33X14.5 R16 WITH APPROXIMATELY 24K MILES ON THEM. *TR
NHTSA ODI #10219243
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.
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