IllustrationPARKING BRAKE IS NOT HOLDING AND WE HAVE USED IT MAYBE 2 OR 3 TIMES. ABS AND BRAKE LIGHTS STAY ON ALL THE TIME. WE HAVE A 2001 CHEVROLET SILVERADO 1500. I HAVE SEEN MANY COMPLAINTS ABOUT THIS ON THE ITERNET. CAN YOU NOT DO SOMETHING ABOUT THESE COMPLAINTS. *TT
2001 Chevrolet Silverado 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2001 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
290–25K
3825–50K
7150–75K
8075–100K
102100–150K
65150K+
385 reports with mileage · 83 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 147 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 133 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 32 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
48 crash reports5 fire reports20 injury reports
What owners actually said
468 reportsFIRST INCIDENT OF THE FUEL SENSOR FAILING (LOW FUEL LIGHT AND FUEL GAUGE INDICATOR FALSE) WAS AT 45,500 MILES WHICH WAS COVERED UNDER WARRANTY THE FIRST TIME. 2ND TIME FAILED ON 02/16/2009 AT 133,697 MILES WHICH COSTS ME 754.67. 3RD TIME WHICH IS CURRENTLY STARTING TO ACT UP AGAIN AT 174,500 MILES, AND WILL PROBABLY COST ME ANOT…
Read full complaint
FIRST INCIDENT OF THE FUEL SENSOR FAILING (LOW FUEL LIGHT AND FUEL GAUGE INDICATOR FALSE) WAS AT 45,500 MILES WHICH WAS COVERED UNDER WARRANTY THE FIRST TIME. 2ND TIME FAILED ON 02/16/2009 AT 133,697 MILES WHICH COSTS ME 754.67. 3RD TIME WHICH IS CURRENTLY STARTING TO ACT UP AGAIN AT 174,500 MILES, AND WILL PROBABLY COST ME ANOTHER 754.67!! FIRST OF ALL I CAN UNDERSTAND ONCE ON A VEHICLE BUT 3 TIMES IS RIDICULOUS, NOT TO MENTION THE EXPENSE! CHEVROLET SHOULD HAVE HAD SOME TYPE OF RECALL ON THIS OR LEAST FIGURE OUT WHAT IS CAUSING THIS. NO DOUBT THIS IS A DEFECT WITH THIS PART AND VERY EXPENSIVE TO REPAIR. I'M ABOUT TO GET RID OF THIS VEHICLE DUE TO THIS PROBLEM WHICH WILL STILL COST ME MONEY IN THE END WITH TRADE-IN OR SELLING IT MYSELF SO I WILL PROBABLY HAVE REPAIR IT FOR THE 3RD TIME. I HAVE RESEARCHED THIS PROBLEM AND IT SEEMS A LOT OF PEOPLE HAVE EXPERIENCED THIS ISSUE. I HAVE LOST FAITH IN GM AND WILL PROBABLY NEVER PURCHASE ANOTHER ONE. THIS ISSUE COULD BE DANGEROUS IF PEOPLE DO NOT CORRECT THIS PROBLEM. NOT EVERYONE HAS 750.00 LAYING AROUND AND GM SHOULD FIX FOR FREE ESPECIALLY WHEN IT HAPPENS A 2ND, 3RD TIME!
2001 CHEVY SILVERADO 4 DOOR EXTRA CAB , BRAKE FAILURE TWO MONTHS AGO FROM BRAKE LINE RUPTURE OF HEAVILY RUSTED STEEL BRAKE LINE,LOCATED ABOVE GAS TANK. CLOSE INSPECTION REVEALED FRAME AND OTHER BRAKE AND GAS LINES, ROTORS, BRAKE ROTOR SHIELDS, EMERGENCY BRAKE CABLES BADLY RUSTED! NO REPAIRS MADE YET. 60,000 MILES ON TRUCK. B…
Read full complaint
2001 CHEVY SILVERADO 4 DOOR EXTRA CAB , BRAKE FAILURE TWO MONTHS AGO FROM BRAKE LINE RUPTURE OF HEAVILY RUSTED STEEL BRAKE LINE,LOCATED ABOVE GAS TANK. CLOSE INSPECTION REVEALED FRAME AND OTHER BRAKE AND GAS LINES, ROTORS, BRAKE ROTOR SHIELDS, EMERGENCY BRAKE CABLES BADLY RUSTED! NO REPAIRS MADE YET. 60,000 MILES ON TRUCK. BODY EXCEPT FOR ROCKER PANELS AND REAR BUMPER IS EXCELLENT ! BOTTOM OF TRUCK PRESSURE FLUSHED WEEKLY DURING WINTER AND SPRING SINCE 2002. FAILURE WHEN IN MY DRIVEWAY, WILL REPLACE SECTION OF LINE WITH LEAK THIS WEEK. IS TRUCK SAFE TO DRIVE? *KB
ON JULY 30TH, 2011 AT ABOUT 22:00 HRS, I WAS OPERATING MY 2001 CHEVROLET SILVERADO ON INTERSTATE 476 IN THE PHILADELPHIA METRO AREA AND INITIALLY IT WAS FUNCTIONING PROPERLY. WITHOUT WARNING A CATASTROPHIC BRAKE LINE RUPTURE OCCURRED. I INSPECTED THE STEEL LINES AND THEY ARE ALL CORRODED TO AN ALARMING DEGREE AND MUST BE REPL…
Read full complaint
ON JULY 30TH, 2011 AT ABOUT 22:00 HRS, I WAS OPERATING MY 2001 CHEVROLET SILVERADO ON INTERSTATE 476 IN THE PHILADELPHIA METRO AREA AND INITIALLY IT WAS FUNCTIONING PROPERLY. WITHOUT WARNING A CATASTROPHIC BRAKE LINE RUPTURE OCCURRED. I INSPECTED THE STEEL LINES AND THEY ARE ALL CORRODED TO AN ALARMING DEGREE AND MUST BE REPLACED. THE TRUCK HAS 70,000 MILES AND AFTER USE DURING THE SAME TRIP WITH NO PROBLEMS WHEN THE BRAKE PEDAL SUNK TO THE FLOOR. TO SAFELY STOP I HAD TO DOWN SHIFT TO A LOWER GEAR, AND USE THE EMERGENCY BRAKE AND SHIFT AGAIN TO NEUTRAL TO STOP SAFELY. *TR
EXPERIENCED BRAKE FAILURE DUE TO CORRODED BRAKE LINES FORM THE MASTER CYLINDER TO ABS UNIT. THE BRAKES FAILED WHILE ATTEMPTING TO STOP AT RED LIGHT ON A MAJOR HIGHWAY, CAUSING THE TRUCK TO ENTER THE INTERSECTION. BOTH MAIN LINES BLEW CAUSING TOTAL BRAKE FAILURE. ANY VEHICLE IN THE NORTH EAST REGION (USA) SHOULD COME STOCK WITH…
Read full complaint
EXPERIENCED BRAKE FAILURE DUE TO CORRODED BRAKE LINES FORM THE MASTER CYLINDER TO ABS UNIT. THE BRAKES FAILED WHILE ATTEMPTING TO STOP AT RED LIGHT ON A MAJOR HIGHWAY, CAUSING THE TRUCK TO ENTER THE INTERSECTION. BOTH MAIN LINES BLEW CAUSING TOTAL BRAKE FAILURE. ANY VEHICLE IN THE NORTH EAST REGION (USA) SHOULD COME STOCK WITH STAINLESS STEEL BRAKE LINES, AS TO PREVENT SUCH PREMATURE CORROSION.
I WAS APPROACHING A STOP SIGN AT ABOUT 45 MPH I APPLIED THE BRAKES TO SLOW DOWN AND THERE WAS NOTHING, I HIT THE EMERGENCY BRAKE AND REALIZED THEY NEVER WORKED. LUCKILY, I COULD SLOW DOWN AND PUT IT IN LOW RANGE UNTIL IT STOPPED. FURTHER INVESTIGATION SHOWED A RUPTURE IN THE REAR BRAKE LINE DUE TO CORROSION. DEALER REPLACED LINE…
Read full complaint
I WAS APPROACHING A STOP SIGN AT ABOUT 45 MPH I APPLIED THE BRAKES TO SLOW DOWN AND THERE WAS NOTHING, I HIT THE EMERGENCY BRAKE AND REALIZED THEY NEVER WORKED. LUCKILY, I COULD SLOW DOWN AND PUT IT IN LOW RANGE UNTIL IT STOPPED. FURTHER INVESTIGATION SHOWED A RUPTURE IN THE REAR BRAKE LINE DUE TO CORROSION. DEALER REPLACED LINE (SHABBY JOB) AT A HUGE COST. I FEEL THESE LINES SHOULD HAVE LASTED LONGER THAT THIS, I NOTICED THE LINES AT THE FRONT SPLITTER ARE ALSO SEVERELY CORRODED, I AM AFRAID TO PUT MY GRANDKIDS IN THIS TRUCK. I HAVE ALWAYS OWNED CHEVY'S BUT MAYBE ITS TIME FOR A CHANGE. ALL I ASK IS THIS PROBLEM BE CORRECTED. THANK YOU.
THE ABS SENSOR ON BOTH SIDES OF MY 2001 SILVERADO WENT OUT, THIS CAUSES YOUR BRAKES TO BE SOFT AND NOT STOP AT SLOW SPEEDS. ALTHOUGH THERE IS A RECALL ON THESE VEHICLES, MINE IS NOT INCLUDED. I HAD TO PAY 725 JUST TO REPAIR ONE SIDE. CHEVY KNOWS THESE PARTS ARE DEFECTIVE AND THEY WONT DO ANYTHING ABOUT IT. *TR
IF DAY TIME RUNNING LIGHTS ARE FOR SAFETY WHY IS IT THAT 2009 (NEW BODY STYLE) THRU APPROX,2004 THE RIGHT FRONT BULB BURNS OUT SO OFTEN.(THE LEFT ONE HAS NEVER BEEN REPLACED) S/N.THERE HAS BEEN ALOT OF TV AND NEWSPAPER ADDS ABOUT PRODUCTS LIKE HEADLIGHT RESTORATION KITS.DEALERS HAVE SALES ON GETTING YOUR HEADLIGHTS BRITE AGAIN (…
Read full complaint
IF DAY TIME RUNNING LIGHTS ARE FOR SAFETY WHY IS IT THAT 2009 (NEW BODY STYLE) THRU APPROX,2004 THE RIGHT FRONT BULB BURNS OUT SO OFTEN.(THE LEFT ONE HAS NEVER BEEN REPLACED) S/N.THERE HAS BEEN ALOT OF TV AND NEWSPAPER ADDS ABOUT PRODUCTS LIKE HEADLIGHT RESTORATION KITS.DEALERS HAVE SALES ON GETTING YOUR HEADLIGHTS BRITE AGAIN (FOR SAFETY REASONS) ISNT THIS ALSO A SAFETY ISSUE AND WHY IS IT HAPPENING NOW.IF IT IS CHEAP PLASTIC THEN THE MANUFACTURER IS AT FAULT FOR CUTTING CORNERS
MY BRAKES ARE BEGINNING TO FAIL WHEN MAKING SHARP TURNS. NOTICEABLE WHEN TURNING INTO PARKING SPACES. I HIT THE BACK OF A PARKED VEHICLE THIS WEEKEND BECAUSE OF IT AND NOW I'M AFRAID TO DRIVE MY TRUCK. WHEN THE SHARP TURN IS MADE (IN EITHER DIRECTION) THE ABS KICKS IN AND THE PEDAL BEGINS TO VIBRATE THEN GOES TO THE FLOOR. THE V…
Read full complaint
MY BRAKES ARE BEGINNING TO FAIL WHEN MAKING SHARP TURNS. NOTICEABLE WHEN TURNING INTO PARKING SPACES. I HIT THE BACK OF A PARKED VEHICLE THIS WEEKEND BECAUSE OF IT AND NOW I'M AFRAID TO DRIVE MY TRUCK. WHEN THE SHARP TURN IS MADE (IN EITHER DIRECTION) THE ABS KICKS IN AND THE PEDAL BEGINS TO VIBRATE THEN GOES TO THE FLOOR. THE VEHICLE IS A 2001 CHEVY SILVERADO 1500, 4 WHEEL DRIVE. ON 6/21/2011 I CALLED CHEVROLET TO REPORT THIS PROBLEM AND ASK FOR HELP AND THEY WOULD NOT BECAUSE A RECALL HAD NOT BEEN MADE. I FOUND OTHER RECALLS ONLINE STATING THIS SAME KIND OF PROBLEM; (NHTSA RECALL CAMPAIGN ID NUMBER 05V379000) I WOULD LIKE FOR YOU TO ISSUE A RECALL AS SOON AS POSSIBLE SO I CAN BE REIMBURSED FOR THE REPAIRS I AM GOING TO HAVE TO MAKE RIGHT NOW TO MAKE MY VEHICLE SAFE TO DRIVE. *TR
RUSTED THROUGH STEEL BRAKE LINES FAILED TODAY AS I WAS BRAKING THE LINES RUPTURED AND I LOST BRAKES. AT FRAME MOUNT LOCATION AT REAR LEFT WHEEL AND ALSO AT PROPORTIONING ABS BLOCK ON FRAME RAIL BELOW DRIVERS SEAT NOTHING DONE TO REPAIR YET SITTING IN MY DRIVEWAY AFTER BEING TOWED HOME. *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.