NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
30 reportsClear category filter120,000 miles · Oct 30, 2014
Service BrakesService Brakes, HydraulicCrash
TL* THE CONTACT OWNS A 2001 GMC YUKON XL. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKES FAILED. AS A RESULT, THE CONTACT CRASHED INTO A DITCH. A POLICE REPORT WAS NOT FILED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSIS. THE TECHNICIAN STATED THAT THE BRAKE LINES…
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TL* THE CONTACT OWNS A 2001 GMC YUKON XL. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKES FAILED. AS A RESULT, THE CONTACT CRASHED INTO A DITCH. A POLICE REPORT WAS NOT FILED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSIS. THE TECHNICIAN STATED THAT THE BRAKE LINES NEEDED TO BE REPLACED. THE VEHICLE HAS BEEN REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 120,000.
NHTSA ODI #10651428
135,000 miles · Jan 5, 2011
Service Brakes, Hydraulic
VEHICLE LOST BRAKING ACTION AT LOW SPEEDS. THIS OCCURRED INTERMITTENTLY, ABOUT ONCE A WEEK OVER A ONE MONTH PERIOD. VEHICLE HAD ADEQUATE BRAKE FLUID. NO DASH INDICATOR LIGHTS INDICATED A BRAKE OR ABS PROBLEM. NO COLLISION OCCURRED, NO INJURIES OCCURRED, DUE TO LACK OF TRAFFIC AND ADEQUATE STOPPING DISTANCE. REPAIR SHOP NOT…
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VEHICLE LOST BRAKING ACTION AT LOW SPEEDS. THIS OCCURRED INTERMITTENTLY, ABOUT ONCE A WEEK OVER A ONE MONTH PERIOD. VEHICLE HAD ADEQUATE BRAKE FLUID. NO DASH INDICATOR LIGHTS INDICATED A BRAKE OR ABS PROBLEM. NO COLLISION OCCURRED, NO INJURIES OCCURRED, DUE TO LACK OF TRAFFIC AND ADEQUATE STOPPING DISTANCE. REPAIR SHOP NOTIFIED CUSTOMER MANY SIMILAR VEHICLES WERE COVERED BY AN ABS BRAKE RECALL. GM WAS CONTACTED AND SAID THIS SPECIFIC VEHICLE WAS NOT COVERED UNDER THE RECALL. VEHICLE WAS TAKEN TO A REPAIR SHOP AND DIAGNOSED WITH AN ABS SENSOR FAILURE AT LOW SPEED ON THE LEFT FRONT WHEEL. PARTS WILL BE SAVED. PUBLISHED RECALL DOCUMENTS INDICATE SEVERAL STATES, INCLUDING THE STATE OF MISSOURI WERE INVOLVED WITH THIS RECALL. THIS VEHICLE CAME FROM A MISSOURI, GMC DEALER, WAS SOLD BY A KANSAS, GMC DEALER. THIS VEHICLE WAS DRIVEN EXTENSIVELY IN THE KANSAS CITY, MISSOURI METROPOLITAN AREA. *TR
NHTSA ODI #10374773
102,000 miles · Apr 30, 2010
Service Brakes, Hydraulic
NEAR MAJOR ACCIDENT ON I95 DUE TO BROKEN BRAKE LINE. *TR
NHTSA ODI #10328264
102,783 miles · Jul 2, 2009
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2001 GMC YUKON XL. THE CONTACT STATED THAT HE HAD ISSUES WITH THE BRAKES ON HIS VEHICLE. THE SENSOR WOULD AUTOMATICALLY APPLY THE BRAKES WHILE ACCELERATING FROM A STOP. IN ADDITION, THE BRAKES WOULD AUTOMATICALLY LOCK WHILE DRIVING AT LOW SPEEDS. A MECHANIC STATED THAT THE WHEEL SPEED SENSOR NEEDED TO B…
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TL*THE CONTACT OWNS A 2001 GMC YUKON XL. THE CONTACT STATED THAT HE HAD ISSUES WITH THE BRAKES ON HIS VEHICLE. THE SENSOR WOULD AUTOMATICALLY APPLY THE BRAKES WHILE ACCELERATING FROM A STOP. IN ADDITION, THE BRAKES WOULD AUTOMATICALLY LOCK WHILE DRIVING AT LOW SPEEDS. A MECHANIC STATED THAT THE WHEEL SPEED SENSOR NEEDED TO BE REPLACED. THERE WAS NO RECALL SO THE DEALER WOULD NOT REPLACE THE COMPONENT FOR FREE. THE CONTACT TOOK HIS VEHICLE TO THE DEALER AND WAS INFORMED THAT THERE WAS A TSB FOR THE FAILURE. HE WOULD HAVE TO PAY $300 TO REPLACE THE WHEEL SPEED SENSOR. THE CONTACT INFORMED THE DEALER THAT HE WOULD HAVE HIS MECHANIC REPAIR IT FOR $75. THE FAILURE MILEAGE WAS 102,783.
NHTSA ODI #10275609
90,847 miles · Feb 3, 2009
Service Brakes, HydraulicSuspension
CORROSION BETWEEN FRONT HUB/BEARING ASSEMBLY AND WHEEL SPEED SENSOR IN GMC YUKON XL CAUSING UNWANTED ANTI-LOCK BRAKE SYSTEM (ABS) ACTIVATION WHEN VEHICLE IS TRAVELING AT A SPEED OF APPROX. 7 MPH DURING BRAKING. CAN LEAD TO CRASH. RECALL BULLETIN 05068 COVERS THIS ISSUE AND MY VIN IS IN THE BULLETIN FOR RECALL, BUT GM WILL NOT C…
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CORROSION BETWEEN FRONT HUB/BEARING ASSEMBLY AND WHEEL SPEED SENSOR IN GMC YUKON XL CAUSING UNWANTED ANTI-LOCK BRAKE SYSTEM (ABS) ACTIVATION WHEN VEHICLE IS TRAVELING AT A SPEED OF APPROX. 7 MPH DURING BRAKING. CAN LEAD TO CRASH. RECALL BULLETIN 05068 COVERS THIS ISSUE AND MY VIN IS IN THE BULLETIN FOR RECALL, BUT GM WILL NOT COVER EXPENSE FOR REPAIR. THEIR ELECTRONIC DATABASE DOESN'T HAVE MY VIN IN THE SYSTEM AND REFUSE SERVICE DESPITE ITS INCLUSION WITHIN THE RECALL. I LIVE IN OHIO AND BOUGHT THE VEHICLE IN OHIO. THE RECALL COVERS OHIO VEHICLES AND OTHER HIGH CORROSION STATES IN THE U.S. *TR
NHTSA ODI #10257303
118,000 miles · Dec 13, 2007
EquipmentService Brakes, Hydraulic
SECOND INCIDENT WITH FAULTY ABS MODULE. THE DEALER CHARGED OVER $2000 TO FIX IN 2005 AND I AM HAVING THE SAME PROBLEM. THE DEALER STATES THE PART IS NO LONGER UNDER WARRANTY GM IS PUTTING DEFECTIVE PARTS IN CARS CONTINUOUSLY AND OVERCHARGING CUSTOMERS TO HAVE THIS PROBLEM FIXED. *TR
NHTSA ODI #10211853
126,000 miles · Feb 22, 2007
Service Brakes, HydraulicCrashInjury
TL* - THE CONTACT CALLED REGARDING THE 2001 GMC YUKON. ON FEBRUARY 13, 2007, THE CONTACT WAS TRAVELING AT 45-50 MPH AND REAR ENDED A GARBAGE TRUCK. THE CONTACT HAD ADEQUATE TIME TO STOP, BUT WHEN SHE APPLIED THE BRAKES, THE VEHICLE SLID INTO THE TRUCK. THE ROAD CONDITIONS WERE DRY. THERE WAS ONE INJURY. A POLICE REPOR…
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TL* - THE CONTACT CALLED REGARDING THE 2001 GMC YUKON. ON FEBRUARY 13, 2007, THE CONTACT WAS TRAVELING AT 45-50 MPH AND REAR ENDED A GARBAGE TRUCK. THE CONTACT HAD ADEQUATE TIME TO STOP, BUT WHEN SHE APPLIED THE BRAKES, THE VEHICLE SLID INTO THE TRUCK. THE ROAD CONDITIONS WERE DRY. THERE WAS ONE INJURY. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED AWAY. THE FAILURE MILEAGE WAS 126,000. THE CONTACT TOOK THE VEHICLE IN SEVERAL TIMES TO THE DEALER, AND THE DEALER COULD NOT FIND ANYTHING WRONG WITH THE BRAKES. *AK
NHTSA ODI #10183241
Mileage unknown · Nov 3, 2006
Service Brakes, Hydraulic
ABS MODULE FAILURE THE ABS MODULE IN MY 2001 YUKON XL HAS FAILED. IT WILL COST ME $1200 TO REPLACE IT. WHAT HAPPENS IS THAT THE MODULE FAILS, AND THE ABS MOTOR STARTS RUNNING CONTINUALLY. THIS IS A PREVALENT PROBLEM WITH GM VEHICLES FROM WHAT I HAVE READ ON THE INTERNET, AND WHAT I HAVE HEARD SECOND HAND FROM A SERVICE MANAG…
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ABS MODULE FAILURE THE ABS MODULE IN MY 2001 YUKON XL HAS FAILED. IT WILL COST ME $1200 TO REPLACE IT. WHAT HAPPENS IS THAT THE MODULE FAILS, AND THE ABS MOTOR STARTS RUNNING CONTINUALLY. THIS IS A PREVALENT PROBLEM WITH GM VEHICLES FROM WHAT I HAVE READ ON THE INTERNET, AND WHAT I HAVE HEARD SECOND HAND FROM A SERVICE MANAGER AT A GM DEALERSHIP. I NOTICED TODAY THAT YOU ARE INVESTIGATING FIRES RESULTING FROM ABS MODULES, AND WANTED YOU TO KNOW THAT THIS IS A KNOWN PROBLEM FOR GM. I SENT GM AN EMAIL ABOUT THIS, BUT SINCE I HADN'T TAKEN MY VEHICLE TO A GM DEALER FOR REPAIR, RATHER I TOOK IT TO A LOCAL AUTO REPAIR SHOP, THEY WERE UNWILLING TO DO ANYTHING ABOUT IT. WHEN I ULTIMATELY TOOK IT IN, THEY SAID IT WOULD COST $1200 TO FIX. *JB
NHTSA ODI #10172569
46,000 miles · May 11, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED THE ABS SYSTEM ENGAGES AT LOW SPEEDS OF APPROXIMATELY 5-10 MPH. THERE IS A GRINDING NOISE HEARD AS THE BRAKING OCCURS. THE BRAKE PEDAL HAS TO BE DEPRESSED TO THE FLOOR BEFORE STOPPING WILL OCCUR. THERE IS AN NHTSA RECALL, # 05V379000, REGARDING THE HYDRAULIC: ANTILOCK. THE VIN WAS NOT INCLUDED IN THE …
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DT*: THE CONTACT STATED THE ABS SYSTEM ENGAGES AT LOW SPEEDS OF APPROXIMATELY 5-10 MPH. THERE IS A GRINDING NOISE HEARD AS THE BRAKING OCCURS. THE BRAKE PEDAL HAS TO BE DEPRESSED TO THE FLOOR BEFORE STOPPING WILL OCCUR. THERE IS AN NHTSA RECALL, # 05V379000, REGARDING THE HYDRAULIC: ANTILOCK. THE VIN WAS NOT INCLUDED IN THE RECALL.
NHTSA ODI #10157244
103,241 miles · Dec 16, 2005
Service Brakes, Hydraulic
WE OWN A 2001 GMC YUKON XL WHICH IS UNDER RECALL FOR DEFECTIVE ANTI-LOCK BRAKE SYSTEM. WE BOUGHT THE CAR USED WITH 100,000 MILES ON IT. THE CAR ORIGINALLY CAME FROM MICHIGAN; HOWEVER, WE LIVE IN TN. THE CAR DOES NOT STOP WHEN YOU ARE TRAVELING AT LOW SPEEDS. THERE HAVE BEEN COUNTLESS INSTANCES WHERE OUR CAR HASN'T STOPPED AN…
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WE OWN A 2001 GMC YUKON XL WHICH IS UNDER RECALL FOR DEFECTIVE ANTI-LOCK BRAKE SYSTEM. WE BOUGHT THE CAR USED WITH 100,000 MILES ON IT. THE CAR ORIGINALLY CAME FROM MICHIGAN; HOWEVER, WE LIVE IN TN. THE CAR DOES NOT STOP WHEN YOU ARE TRAVELING AT LOW SPEEDS. THERE HAVE BEEN COUNTLESS INSTANCES WHERE OUR CAR HASN'T STOPPED AND WE HAVE TRAVELED INTO ONCOMING TRAFFIC. THANKFULLY, WE HAVEN'T HAD AN ACCIDENT INVOLVING ANOTHER VEHICLE YET. WHEN DRIVING MY SON TO SCHOOL THIS MORNING, WE HAD ICE ON OUR ROADS AND IT WAS EVEN MORE IMPOSSIBLE TO STOP...I WORRY THAT WITH WINTER CONDITIONS, AND THE NEED TO DRIVE SLOWER, THE POSSIBILITY OF AN ACCIDENT WITH THIS VEHICLE WILL INCREASE. I HAD HEARD ABOUT THE RECALL MONTHS AGO ON THE LOCAL NEWS AND WAS WORRIED WHY WE HADN'T RECEIVED OUR NOTICE. MY HUSBAND AND I HAVE CALLED GMC DEALERSHIPS IN TN REPEATEDLY, BUT NO ONE WOULD HELP US UNTIL WE RECEIVED A NOTICE FROM GMC. WHEN I RETURNED HOME THIS MORNING, ON FRIDAY, DECEMBER 16, I CALLED THE GMC RECALL INFORMATION LINE AND SPOKE WITH A REPRESENTATIVE THERE. I WAS FIRST INFORMED THAT MY CAR DOESN'T QUALIFY FOR THE RECALL BECAUSE IT HAS HIGH MILEAGE AND IS NOT PRESENTLY IN A NORTHERN STATE. THE FACT THAT THERE IS NO GMC MAINTENANCE RECORD ON FILE WAS ALSO AN ISSUE. I FELT THAT THE MILEAGE AND THE FACT THAT IT'S NOT IN A NORTHERN STATE NOW SHOULDN'T AFFECT WHETHER THE CAR QUALIFIES, I WAS TOLD THAT IT WASN'T THOSE FACTORS AFTER ALL, AND THAT THE VIN NUMBER ON OUR VEHICLE IS TRACED AND THEY FELT NO DEFECTIVE PART HAD BEEN PLACED IN OUR PARTICULAR VEHICLE ORIGINALLY. I WAS INFORMED THAT ANY HELP FROM GMC FOR REPAIRS WOULD BE ON A GOODWILL BASIS ONLY AND THAT I WOULD PROBABLY BE BETTER OFF TAKING THE VEHICLE TO A CHEAPER, INDEPENDENTLY OWNED CAR REPAIR SHOP AND HAVE THE REPAIRS DONE MYSELF. I FEEL GMC IS RESPONSIBLE FOR THESE REPAIRS. I FEEL IF WE LIVED IN MICHIGAN, OUR CAR WOULD ALREADY HAVE BEEN REPAIRED AND THAT GMC IS USING THAT FACT TO GET OUT OF FUNDING THE WORK. *JB
NHTSA ODI #10145436
Official recalls
4Aug 29, 2005
CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THIS CONDITION IS MORE LIKELY TO OCCUR IN ENVIRONMENTALLY CORROSIVE AREAS. THIS RECALL WILL BE LAUNCHED IN THE "SALT BELT" STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MARYLAND, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN AND THE DISTRICT OF COLUMBIA ONLY.
Consequence & remedy
Consequence: THIS CAN CAUSE INCREASED STOPPING DISTANCES DURING LOW-SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH.
Remedy: DEALERS ARE TO REMOVE THE WHEEL SPEED SENSOR AND THOROUGHLY CLEAN THE WHEEL SPEED SENSOR MOUNTING SURFACE ON THE BEARING, APPLY RUST INHIBITOR TO THE CLEANED SURFACE, GREASE THE MOUNTING SURFACE, REINSTALL THE WHEEL SPEED SENSOR, AND CHECK THE PEAK-TO-PEAK OUTPUT VOLTAGE TO ENSURE THE WHEEL SPEED SIGNAL IS WITHIN SPECIFICATIONS. THE RECALL BEGAN SEPTEMBER 22, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463.
Apr 14, 2005
CERTAIN TRUCKS AND SPORT UTILITY VEHICLES WERE BUILT WITH FUEL MODULE RESERVOIR ASSEMBLIES THAT CONTAIN FUEL PUMP WIRES CONNECTORS MAY OVERHEAT UNDER CERTAIN OPERATING CONDITIONS.
Consequence & remedy
Consequence: IF THE IGNITION CIRCUIT WIRE IS EXPOSED, THE FUEL PUMP FUSE WILL BLOW, DISABLING THE FUEL PUMP AND CAUSING AN ENGINE STALL OR NO-START CONDITION. IF SUFFICIENT HEAT IS CONDUCTED TO THE PASS-THROUGH CONNECTOR, A HOLE IN THE CONNECTOR MAY RESULT, WHICH MAY CAUSE A 'SERVICE ENGINE SOON' LIGHT TO BE ILLUMINATED DURING THE EMISSION SYSTEM DIAGNOSTIC ROUTINE. FUEL VAPOR AND IN SOME CASES LIQUID FUEL MAY LEAK OUT OF THE FUEL TANK THROUGH THE HOLE IN THE CONNECTOR BODY. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE. ALSO IF THE IGNITION CIRCUIT OR GROUND WIRE IS EXPOSED AND SHORTS TO THE FUEL LEVEL SENDER CARD WIRES, INACCURATE FUEL LEVEL READINGS MAY RESULT.
Remedy: DEALERS WILL REMOVE THE FUEL TANK, AND REMOVE THE MODULE RESERVOIR ASSEMBLIES FROM THE TANK, AND INSTALL A NEW SERVICE KIT FREE OF CHARGE. AN INTERIM LETTER TO OWNERS WAS MAILED ON MAY 25, 2005. THE OWNERS WERE RE-NOTIFIED ON OCTOBER 19, 2005, SINCE PARTS ARE NOW AVAILABE. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 AND GMC AT 1-866-996-9463.
May 17, 2001
VEHICLE DESCRIPTION: PICKUP AND UTILITY TRUCKS. SOME OF THESE VEHICLES HAVE AN INTERNAL COMPONENT IN THE OUTBOARD SEAT BELT RETRACTORS FOR THE 2ND AND 3RD ROW OF SEATS THAT COULD BE CRACKED. WITH REPEATED ACTUATION OF THE LOCKING MECHANISM, THE CRACK COULD SPREAD TO THE POINT SUCH THAT THE SEAT BELT WOULD NO LONGER LOCK.
Consequence & remedy
Consequence: IN A CRASH, INCREASED OCCUPANT INJURY COULD RESULT FROM THE NO-LOCK CONDITION.
Remedy: DEALERS WILL INSPECT THE OUTBOARD SEAT BELTS FOR SPECIFIC LOT NUMBERS AND REPLACE THE BELTS IF NECESSARY. GM IS ENCLOSING AN INSPECTION PROCEDURE FOR THE OWNERS TO USE OR THEY CAN HAVE THEIR DEALERS DO THE INSPECTIONS. OWNER NOTIFICATION BEGAN JULY 2, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.
Oct 25, 2000
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES. SOME OF THESE VEHICLES HAVE LOOSE OR MISSING REAR WHEELHOUSE PLUGS. UNDER CERTAIN VEHICLE OPERATING CONDITIONS, EXHAUST GASES CAN FLOW FORWARD AND ACCUMULATE IN THE REAR WHEELHOUSE.
Consequence & remedy
Consequence: THESE GASES COULD FLOW INTO THE PASSENGER COMPARTMENT IF THE PLUG IS MISSING OR LOOSE AND COULD CAUSE POSSIBLE ILLNESS, UNCONSCIOUSNESS, OR DEATH.
Remedy: DEALERS WILL INSPECT THE VEHICLE FOR LOOSE OR MISSING WHEELHOUSE PLUGS AND INSTALL NEW PLUGS IF NECESSARY.
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
6DP05009 · Parking Brake Failure
Opened Dec 20, 2005 · Closed May 31, 2006
Status: closed (inferred from source dates) · Parking Brake; Parking Brake:conventional; Parking Brake:conventional:mechanical
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
Additional source detail variants (3)
Parking Brake:conventional
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
Parking Brake:conventional:mechanical
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
Parking Brake
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
PE05020 · Unwanted LOW-SPEED Abs Activation
Opened Apr 28, 2005 · Closed Sep 13, 2005
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip; Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module
IN A LETTER DATED AUGUST 29, 2005, GM NOTIFIED ODI THAT IT WAS RECALLING CERTAIN MODEL YEAR 1999 THROUGH 2002 C/K PICKUP TRUCKS AND SPORT UTILITY VEHICLES TO CORRECT A PROBLEM WITH ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR CORROSION THAT MAY RESULT IN UNWANTED ABS ACTIVATION AND EXTENDED STOPPING DISTANCES DURING LOW-SPEED BRAKING (RECALL 05V-379).GM'S RECALL COVERS APPROXIMATELY 804,000 VEHICLES CURRENTLY REGISTERED IN THE FOLLOWING 14 SALT-BELT STATES:CONNECTICUT, ILLINOIS, INDIANA, MASSACHUSETTS, MAINE, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, AND WEST VIRGINIA.THE RECALL PROCEDURE WILL INVOLVE REMOVING THE SENSOR, CLEANING THE MOUNTING SURFACE, APPLYING A RUST INHIBITOR (ZINC-X) TO THE SURFACE, AND REINSTALLING THE SENSOR.IF NECESSARY, THE SENSOR WILL BE REPLACED. THE POPULATION AND FAILURE REPORT DATA GIVEN IN THIS RESUME ARE FOR THE FULL REGION THAT HAS BEEN CONSIDERED BY ODI AS THE SALT-BELT.THAT INCLUDES DELAWARE, IOWA, MARYLAND, MINNESOTA, MISSOURI, WISCONSIN AND THE DISTRICT OF COLUMBIA IN ADDITION TO THE 14 STATES INCLUDED IN 05V-379.THE STATES COVERED BY GM'S RECALL HAVE THE HIGHEST INCIDENT RATES FOR THE SUBJECT CONDITION, ACCOUNTING FOR 91% OF THE INCIDENTS, BUT ONLY 24% OF SUBJECT VEHICLE SALES IN THE UNITED STATES.ODI'S ANALYSIS DETERMINED THAT 840 OF THE COMPLAINTS, 244 OF THE CRASHES, AND 16 OF THE INJURIES IDENTIFIED IN THIS INVESTIGATION OCCURRED IN THOSE STATES.THE RESULTING INCIDENT AND CRASH RATES ARE 96.2 AND 28.0 PER 100,000 VEHICLES RESPECTIVELY (NOTE:RATES ARE BASED ON VEHICLE SALES, NOT REGISTERED VEHICLES). THE CORRESPONDING NUMBERS IN THE EXCLUDED PORTIONS OF THE SALT-BELT ARE 399,000 VEHICLES, 81 INCIDENTS (20.3 PER 100,000 VEHICLES), 3 CRASHES, AND NO INJURIES.THE STATISTICS IN THE REMAINING 30 STATES ARE 2,406,000 VEHICLES, 168 INCIDENTS (7.0 PER 100,000 VEHICLES), 31 CRASHES, AND ONE INJURY.GM AND ODI ARE CONTINUING TO MONITOR THE PROBLEM EXPERIENCE IN STATES THAT ARE NOT INCLUDED IN THE RECALL.GM WILL PROVIDE ODI WITH UPDATED COMPLAINT, FIELD REPORT, AND WARRANTY DATA IN NOVEMBER 2005.ODI AND GM WILL REVIEW THAT DATA AND ASSESS THE APPROPRIATENESS OF THE CURRENT SCOPE OF THE RECALL AT THAT TIME.
Additional source detail variants (2)
Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module
IN A LETTER DATED AUGUST 29, 2005, GM NOTIFIED ODI THAT IT WAS RECALLING CERTAIN MODEL YEAR 1999 THROUGH 2002 C/K PICKUP TRUCKS AND SPORT UTILITY VEHICLES TO CORRECT A PROBLEM WITH ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR CORROSION THAT MAY RESULT IN UNWANTED ABS ACTIVATION AND EXTENDED STOPPING DISTANCES DURING LOW-SPEED BRAKING (RECALL 05V-379).GM'S RECALL COVERS APPROXIMATELY 804,000 VEHICLES CURRENTLY REGISTERED IN THE FOLLOWING 14 SALT-BELT STATES:CONNECTICUT, ILLINOIS, INDIANA, MASSACHUSETTS, MAINE, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, AND WEST VIRGINIA.THE RECALL PROCEDURE WILL INVOLVE REMOVING THE SENSOR, CLEANING THE MOUNTING SURFACE, APPLYING A RUST INHIBITOR (ZINC-X) TO THE SURFACE, AND REINSTALLING THE SENSOR.IF NECESSARY, THE SENSOR WILL BE REPLACED. THE POPULATION AND FAILURE REPORT DATA GIVEN IN THIS RESUME ARE FOR THE FULL REGION THAT HAS BEEN CONSIDERED BY ODI AS THE SALT-BELT.THAT INCLUDES DELAWARE, IOWA, MARYLAND, MINNESOTA, MISSOURI, WISCONSIN AND THE DISTRICT OF COLUMBIA IN ADDITION TO THE 14 STATES INCLUDED IN 05V-379.THE STATES COVERED BY GM'S RECALL HAVE THE HIGHEST INCIDENT RATES FOR THE SUBJECT CONDITION, ACCOUNTING FOR 91% OF THE INCIDENTS, BUT ONLY 24% OF SUBJECT VEHICLE SALES IN THE UNITED STATES.ODI'S ANALYSIS DETERMINED THAT 840 OF THE COMPLAINTS, 244 OF THE CRASHES, AND 16 OF THE INJURIES IDENTIFIED IN THIS INVESTIGATION OCCURRED IN THOSE STATES.THE RESULTING INCIDENT AND CRASH RATES ARE 96.2 AND 28.0 PER 100,000 VEHICLES RESPECTIVELY (NOTE:RATES ARE BASED ON VEHICLE SALES, NOT REGISTERED VEHICLES). THE CORRESPONDING NUMBERS IN THE EXCLUDED PORTIONS OF THE SALT-BELT ARE 399,000 VEHICLES, 81 INCIDENTS (20.3 PER 100,000 VEHICLES), 3 CRASHES, AND NO INJURIES.THE STATISTICS IN THE REMAINING 30 STATES ARE 2,406,000 VEHICLES, 168 INCIDENTS (7.0 PER 100,000 VEHICLES), 31 CRASHES, AND ONE INJURY.GM AND ODI ARE CONTINUING TO MONITOR THE PROBLEM EXPERIENCE IN STATES THAT ARE NOT INCLUDED IN THE RECALL.GM WILL PROVIDE ODI WITH UPDATED COMPLAINT, FIELD REPORT, AND WARRANTY DATA IN NOVEMBER 2005.ODI AND GM WILL REVIEW THAT DATA AND ASSESS THE APPROPRIATENESS OF THE CURRENT SCOPE OF THE RECALL AT THAT TIME.
Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip
IN A LETTER DATED AUGUST 29, 2005, GM NOTIFIED ODI THAT IT WAS RECALLING CERTAIN MODEL YEAR 1999 THROUGH 2002 C/K PICKUP TRUCKS AND SPORT UTILITY VEHICLES TO CORRECT A PROBLEM WITH ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR CORROSION THAT MAY RESULT IN UNWANTED ABS ACTIVATION AND EXTENDED STOPPING DISTANCES DURING LOW-SPEED BRAKING (RECALL 05V-379).GM'S RECALL COVERS APPROXIMATELY 804,000 VEHICLES CURRENTLY REGISTERED IN THE FOLLOWING 14 SALT-BELT STATES:CONNECTICUT, ILLINOIS, INDIANA, MASSACHUSETTS, MAINE, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, AND WEST VIRGINIA.THE RECALL PROCEDURE WILL INVOLVE REMOVING THE SENSOR, CLEANING THE MOUNTING SURFACE, APPLYING A RUST INHIBITOR (ZINC-X) TO THE SURFACE, AND REINSTALLING THE SENSOR.IF NECESSARY, THE SENSOR WILL BE REPLACED. THE POPULATION AND FAILURE REPORT DATA GIVEN IN THIS RESUME ARE FOR THE FULL REGION THAT HAS BEEN CONSIDERED BY ODI AS THE SALT-BELT.THAT INCLUDES DELAWARE, IOWA, MARYLAND, MINNESOTA, MISSOURI, WISCONSIN AND THE DISTRICT OF COLUMBIA IN ADDITION TO THE 14 STATES INCLUDED IN 05V-379.THE STATES COVERED BY GM'S RECALL HAVE THE HIGHEST INCIDENT RATES FOR THE SUBJECT CONDITION, ACCOUNTING FOR 91% OF THE INCIDENTS, BUT ONLY 24% OF SUBJECT VEHICLE SALES IN THE UNITED STATES.ODI'S ANALYSIS DETERMINED THAT 840 OF THE COMPLAINTS, 244 OF THE CRASHES, AND 16 OF THE INJURIES IDENTIFIED IN THIS INVESTIGATION OCCURRED IN THOSE STATES.THE RESULTING INCIDENT AND CRASH RATES ARE 96.2 AND 28.0 PER 100,000 VEHICLES RESPECTIVELY (NOTE:RATES ARE BASED ON VEHICLE SALES, NOT REGISTERED VEHICLES). THE CORRESPONDING NUMBERS IN THE EXCLUDED PORTIONS OF THE SALT-BELT ARE 399,000 VEHICLES, 81 INCIDENTS (20.3 PER 100,000 VEHICLES), 3 CRASHES, AND NO INJURIES.THE STATISTICS IN THE REMAINING 30 STATES ARE 2,406,000 VEHICLES, 168 INCIDENTS (7.0 PER 100,000 VEHICLES), 31 CRASHES, AND ONE INJURY.GM AND ODI ARE CONTINUING TO MONITOR THE PROBLEM EXPERIENCE IN STATES THAT ARE NOT INCLUDED IN THE RECALL.GM WILL PROVIDE ODI WITH UPDATED COMPLAINT, FIELD REPORT, AND WARRANTY DATA IN NOVEMBER 2005.ODI AND GM WILL REVIEW THAT DATA AND ASSESS THE APPROPRIATENESS OF THE CURRENT SCOPE OF THE RECALL AT THAT TIME.
EA04026 · Overheated Fuel Pump Wiring
Opened Sep 9, 2004 · Closed Aug 2, 2005
Status: closed (inferred from source dates) · Fuel System, Gasoline:delivery:fuel Pump
IN A LETTER DATED APRIL 14, 2005, GENERAL MOTORS (GM) NOTIFIED ODI THAT IT HAD IDENTIFIED A DEFECT RELATED TO MOTOR VEHICLE SAFETY IN APPROXIMATELY 316,508 MODEL YEAR (MY) 2000-01 1500 SERIES CHEVROLET SUBURBAN AND GMC YUKON XL VEHICLES (RECALL 05V-155).GM DETERMINED THAT SOME OF THESE VEHICLES WERE EQUIPPED WITH FUEL MODULE RESERVOIR ASSEMBLIES (MRAS) THAT CONTAIN FUEL PUMP WIRES AND/OR CONNECTORS THAT MAY OVERHEAT UNDER CERTAIN OPERATING CONDITIONS.ACCORDING TO GM, FUEL PUMP WIRES THAT OVERHEAT MAY RESULT IN ONE OR MORE CONDITIONS THAT PRESENT RISKS TO MOTOR VEHICLE SAFETY:(1) FUEL LEAKAGE FROM THE MRA PASS-THROUGH CONNECTOR IF THE OVERHEATING PRODUCES A HOLE IN THE PLASTIC CONNECTOR; (2) ENGINE STALL IF WIRING EXPOSED BY THE OVERHEATING SHORTS TO GROUND AND CAUSES THE FUEL PUMP FUSE TO BLOW; OR (3) INACCURATE FUEL LEVEL READINGS IF OVERHEATED WIRING IS SHORTED TO THE FUEL LEVEL SENDER CARD.GM'S ANALYSIS IDENTIFIED THE CAUSE OF THE OVERHEATED WIRING AS A HIGH-RESISTANCE CONDITION IN THE MRA CONNECTOR CONTACTS DUE TO FRETTING CORROSION THAT MAY DEVELOP OVER TIME.GM DETERMINED THAT THE CORROSION IS CAUSED BY MOVEMENT BETWEEN THE CONTACT SURFACES AND THAT SUCH MOVEMENT IS PRIMARILY INFLUENCED BY CHASSIS AND FUEL TANK VIRBRATION CHARACTERISTICS.GM'S TESTING FOUND THAT THE FUEL TANK VIBRATION CHARACTERISTICS OF THE RECALLED MY 2000-01 1500-SERIES VEHICLES WERE SIGNIFICANTLY GREATER THAN IN OTHER GM VEHICLES EQUIPPED WITH THE SAME MRA CONNECTORS.THESE VEHICLES HAD THE HIGHEST RATE OF RELATED FUEL LEAK AND STALL COMPLAINTS; AND A RECENT SURVEY CONDUCTED BY GM FOUND EVIDENCE OF MRA WIRING OVER-HEATING IN ALMOST ONE-THIRD OF THE 1500-SERIES VEHICLES INSPECTED. OTHER VEHICLES EQUIPPED WITH THE SUBJECT MRA CONNECTOR AND EVALUATED DURING THIS INVESTIGATION INCLUDE APPROXIMATELY 33,000 MY 2000-01 2500-SERIES SUBUBRAN AND YUKON XL VEHICLES, WHICH FALL WITHIN THE SCOPE OF EA04-026, AND PEER POPULATIONS OF SHORT WHEELBASE YUKON AND TAHOE UTILITY VEHICLES AND FULL-SIZE SILVERADO AND SIERRA PICKUP TRUCKS. THESE VEHICLES ARE NOT INCLUDED IN RECALL 05V-155 FOR THE FOLLOWING REASONS:(1) THESE VEHICLES ARE EQUIPPED WITH FUEL TANKS WITH SIGNIFICANTLY LESS VIBRATION AT THE MRA INTERFACE THAN THE RECALLED VEHICLES; (2) THE POTENTIAL FOR FUEL LEAKAGE IS SUBSTANTIALLY LOWER IN THE PICKUP TRUCKS AND SHORT-WHEELBASE UTILITY VEHICLES DUE TO DIFFERENCES IN FUEL TANK CONFIGURATION AND NO INCIDENTS OF FUEL LEAKAGE DUE TO OVERHEATED WIRING WERE VERIFIED IN THESE VEHICLES; (3) THERE THERE HAVE BEEN ONLY THREE POTENTIALLY RELATED COMPLAINTS OF FUEL LEAKAGE ASSOCIATED WITH THE OVERHEATED WIRING CONDITION IN THE 2500-SERIES LONG-WHEELBASE UTILITY VEHICLES; AND (4) NO EVIDENCE OF OVERHEATED WIRING WAS FOUND IN THE 2500-SERIES SUBURBAN AND YUKON XL VEHICLES AND PICKUP TRUCKS INSPECTED BY GM IN ITS VEHICLE SURVEY EFFORTS AND THE RATE FOUND IN THE SHORT-WHEELBASE UTILITIES WAS LOWER THAN THE RECALLED VEHICLES BY AN ORDER OF MAGNITUDE. ODI WILL CONTINUE TO MONITOR THE EXPERIENCE IN THE 2500 SERIES MY 2000-01 LONG-WHEELBASE UTILITY VEHICLES.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS FOR THE 2500 SERIES VEHICLES.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY A CHANGE IN CIRCUMSTANCES.
PE04042 · Overheated Fuel Pump Wiring
Opened May 3, 2004 · Closed Sep 9, 2004
Status: closed (inferred from source dates) · Fuel System, Gasoline:delivery:fuel Pump
THE FUEL PUMP WIRING AND CONNECTOR MAY OVERHEAT AND MELT A HOLE IN THE TOP OF THE FUEL PUMP MODULE.POSSIBLE CONSEQUENCES INCLUDE FUEL TANK LEAKAGE AND ENGINE STALL WITH NO RESTART.FOURTEEN OF THE 20 COMPLAINTS TO ODI ALLEGE FUEL TANK LEAKAGE, INCLUDING ONE THAT REPORTED THAT A FIRE DEPARTMENT WAS CALLED TO THE SCENE AFTER A POOL OF GASOLINE WAS DISCOVERED BENEATH THE VEHICLE.MOST OF THE ODI COMPLAINTS REPORT INCIDENTS THAT OCCURRED WITHIN THE PAST YEAR. ACCORDING TO GM, FUEL LEAKAGE CAN OCCUR IN THE SUBJECT VEHICLES IF THE HEAT IS SUFFICIENT TO MELT A HOLE IN THE PLASTIC CONNECTOR LARGE ENOUGH FOR LIQUID FUEL TO FLOW THROUGH.ON-BOARD EMISSIONS DIAGNOSTICS MAY DETECT HOLES THAT ARE APPROXIMATELY 0.040 INCHES OR MORE AND SET A SERVICE ENGINE SOON WARNING LIGHT.THE CONNECTOR POSITION IN THE SUBJECT VEHICLES IS BELOW THE FUEL LEVEL WHEN THE TANK IS FULL.WHILE GM DOES NOT KNOW HOW MUCH FUEL COULD LEAK FROM A TANK WITH A MELTED FUEL PUMP CONNECTOR, SEVERAL CONSUMERS HAVE REPORTED SIGNIFICANT LEAK EVENTS.ENGINE STALL CAN OCCUR IF:(1) A SHORT OCCURS IN THE PUMP WIRING (BARE WIRE EXPOSED BY MELTED INSULATION SHORTS AGAINST A GROUND OR GROUND WIRE) AND THE FUEL PUMP RELAY FUSE IS BLOWN; OR (2) THE VEHICLE RUNS OUT OF FUEL DUE TO AN INACCURATE FUEL GAUGE READING RESULTING FROM AN ELECTRICAL SHORT BETWEEN THE FUEL PUMP WIRING AND THE LEVEL SENSOR WIRING. GM'S ANALYSIS OF FIVE ASSEMBLIES RETURNED FROM INCIDENT VEHICLES DETERMINED THAT THE CONDITION IS CAUSED BY ELEVATED RESISTANCE/ ARCING AT THE MRA UNDERCOVER B CAVITY TERMINAL OF THE FOUR-WAY 150 METRI-PAK CONNECTOR.GM ATTRIBUTES THE HIGH RESISTANCE AND ARCING TO A DEPRESSED CONTACT ARM AT THE 150 METRI-PAK B CAVITY FEMALE TERMINAL.GM IS CONTINUING ITS INVESTIGATION TO COMPLETE ITS ROOT CAUSE ANALYSIS. MODULAR RESERVOIR ASSEMBLIES USING THE 150 METRI-PAK CONNECTORS WERE USED BY GM IN SEVERAL MILLION C/K-SERIES SPORT UTILITY VEHICLES AND PICKUP TRUCKS FROM MY 1997 THROUGH 2002, WHEN GM RELEASED A METAL MRA COVER AND A 280 METRI-PAK CONNECTOR IN THE SUBJECT VEHICLES.DURING PE04-042, ODI COLLECTED INFORMATION FROM GM CONCERNING MY 2000-2002 C/K SUV'S AND PICKUP TRUCKS.THE SUBJECT VEHICLES COMPRISE APPROXIMATELY 9 PERCENT OF PRODUCTION FOR THOSE VEHICLES AND ABOUT 39 PERCENT OF COMPLAINTS TO GM. THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS TO FURTHER ASSESS THE SCOPE, FREQUENCY, AND SAFETY CONSEQUENCES OF THE ALLEGED DEFECT IN GM C/K-SERIES VEHICLES.
PE02067 · Alleged Failure Of 2ND Row Seatbelt Alr
Opened Sep 25, 2002 · Closed Feb 11, 2003
Status: closed (inferred from source dates) · Seat Belts; Seat Belts:rear/other
THE AUTOMATIC LOCKING RETRACTOR (ALR) IS A FEATURE INCORPORATED IN THE SUBJECT VEHICLE FOR LOCKING THE WEBBING TO PROPERLY SECURE A CHILD SAFETY SEAT INTO A VEHICLE.THIS PE WAS OPENED BASED ON A GM TECHNICAL SERVICE BULLETIN STATING THAT WITH CERTAIN CHILD SAFETY SEATS THE WEBBING MAY NOT REMAIN LOCKED.THERE ARE NO COMPLAINTS IN THE ODI DATABASE AND ONLY TWO COMPLAINTS TO GM.GM'S INSTRUCTIONS STATE FOR THE FINAL STEP IN USING THE WEBBING LOCK FEATURE TO PUSH AND PULL THE CHILD RESTRAINT TO BE SURE IT IS SECURE. IF THE ALR IS NOT LOCKED, THE USER WOULD BE FULLY AWARE OF THIS CONDITION PRIOR TO COMPLETING PROPER INSTALLATION OF THE CHILD SAFETY SEAT IN THIS VEHICLE.THIS INVESTIGATION DID NOT UNCOVER ANY COMPLAINTS OF THE ALR INADVERTENTLY UNLOCKING WHILE THE VEHICLE IS IN MOTION.THE EMERGENCY LOCKING RETRACTOR (ELR) FEATURE REMAINS AVAILABLE TO LOCK THE RETRACTOR IN A CRASH.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE ATTACHED SUMMARY FOR ADDITIONAL INFORMATION.
Additional source detail variants (2)
Seat Belts
THE AUTOMATIC LOCKING RETRACTOR (ALR) IS A FEATURE INCORPORATED IN THE SUBJECT VEHICLE FOR LOCKING THE WEBBING TO PROPERLY SECURE A CHILD SAFETY SEAT INTO A VEHICLE.THIS PE WAS OPENED BASED ON A GM TECHNICAL SERVICE BULLETIN STATING THAT WITH CERTAIN CHILD SAFETY SEATS THE WEBBING MAY NOT REMAIN LOCKED.THERE ARE NO COMPLAINTS IN THE ODI DATABASE AND ONLY TWO COMPLAINTS TO GM.GM'S INSTRUCTIONS STATE FOR THE FINAL STEP IN USING THE WEBBING LOCK FEATURE TO PUSH AND PULL THE CHILD RESTRAINT TO BE SURE IT IS SECURE. IF THE ALR IS NOT LOCKED, THE USER WOULD BE FULLY AWARE OF THIS CONDITION PRIOR TO COMPLETING PROPER INSTALLATION OF THE CHILD SAFETY SEAT IN THIS VEHICLE.THIS INVESTIGATION DID NOT UNCOVER ANY COMPLAINTS OF THE ALR INADVERTENTLY UNLOCKING WHILE THE VEHICLE IS IN MOTION.THE EMERGENCY LOCKING RETRACTOR (ELR) FEATURE REMAINS AVAILABLE TO LOCK THE RETRACTOR IN A CRASH.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE ATTACHED SUMMARY FOR ADDITIONAL INFORMATION.
Seat Belts:rear/other
THE AUTOMATIC LOCKING RETRACTOR (ALR) IS A FEATURE INCORPORATED IN THE SUBJECT VEHICLE FOR LOCKING THE WEBBING TO PROPERLY SECURE A CHILD SAFETY SEAT INTO A VEHICLE.THIS PE WAS OPENED BASED ON A GM TECHNICAL SERVICE BULLETIN STATING THAT WITH CERTAIN CHILD SAFETY SEATS THE WEBBING MAY NOT REMAIN LOCKED.THERE ARE NO COMPLAINTS IN THE ODI DATABASE AND ONLY TWO COMPLAINTS TO GM.GM'S INSTRUCTIONS STATE FOR THE FINAL STEP IN USING THE WEBBING LOCK FEATURE TO PUSH AND PULL THE CHILD RESTRAINT TO BE SURE IT IS SECURE. IF THE ALR IS NOT LOCKED, THE USER WOULD BE FULLY AWARE OF THIS CONDITION PRIOR TO COMPLETING PROPER INSTALLATION OF THE CHILD SAFETY SEAT IN THIS VEHICLE.THIS INVESTIGATION DID NOT UNCOVER ANY COMPLAINTS OF THE ALR INADVERTENTLY UNLOCKING WHILE THE VEHICLE IS IN MOTION.THE EMERGENCY LOCKING RETRACTOR (ELR) FEATURE REMAINS AVAILABLE TO LOCK THE RETRACTOR IN A CRASH.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE ATTACHED SUMMARY FOR ADDITIONAL INFORMATION.
EA02015 · Throttle Sticking Closed
Opened Aug 1, 2002 · Closed Jan 12, 2004
Status: closed (inferred from source dates) · Vehicle Speed Control:linkages
THIS INVESTIGATION INVOLVES THE GENERAL MOTORS CORPORATION (GM)THROTTLE BODY (TB) UTILIZED IN MODEL YEAR (MY) 1999-2002 SILVERADO, SIERRA, TAHOE, SUBURBAN, AVALANCHE AND YUKON (SUBJECT VEHICLE(S)) WITH 4.8L, 5.3L, AND 6.0L ENGINES. THE TB VALVE MAY INTERMITTENTLY STICK IN A CLOSED POSITION.IN SUCH A SITUATION, AN OPERATOR MAY APPLY ADDITIONAL ACCELERATOR PEDAL FORCE TO INCREASE ENGINE SPEED.THE APPLICATION OF ADDITIONAL ACCELERATOR PEDAL FORCE, TO OPEN A STUCK THROTTLE VALVE, MAY OPEN THE THROTTLE VALVE MORE THAN INTENDED AND, IN TURN, ACCELERATE THE ENGINE AND VEHICLE MORE THAN INTENDED AND REASONABLY EXPECTED BY THE DRIVER.ON AUGUST 1, 2002, THE OFFICE OF DEFECTS INVESTIGATION (ODI), OF THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION (NHTSA), OPENED THIS ENGINEERING ANALYSIS.THE INVESTIGATION REVEALED THAT TWO FACTORS MAY CAUSE THE DEFECT: 1) TB MANUFACTURING PROCESS PROBLEMS; AND 2) ACCUMULATION OF DEPOSITS (A PCV SYSTEM BY-PRODUCT) ON OR AROUND THE TB THROTTLE VALVE AND BORE.ODI CONCLUDES THAT THE TB PERFORMS IN A DEFECTIVE MANNER AFTER ANALYZING GM?S DATA SUBMISSIONS, AND TEST DATA COLLECTED BY THE VEHICLE RESEARCH AND TEST CENTER (VRTC).FIFTY-NINE CRASHES ARE ALLEGED TO HAVE OCCURRED AS A RESULT OF GM?S TB DEFECT.THE MAJORITY OF THE CRASHES INVOLVE A SINGLE VEHICLE, ENGAGING IN A CLOSE QUARTER VEHICLE MANEUVER (OR LOW SPEED), AND CAUSING ONLY MINOR PROPERTY DAMAGE.FOUR OUT OF THE FIFTY-NINE CRASHES INVOLVE INJURY, AND THOSE INJURIES WERE MINOR.ALTHOUGH GM?S TB IS DEFECTIVE, BASED ON THE EVIDENCE GATHERED, ODI HAS FOUND THAT THE ACCELERATOR PEDAL FORCE REQUIRED TO OPEN A STUCK THROTTLE VALVE IS NEGLIGIBLE, AND THE THROTTLE VALVE DOES NOT STICK IN THE OPEN POSITION.THEREFORE THIS ENGINEERING ANALYSIS (EA02-015) WILL BE CLOSED AT THIS TIME.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.FOR A DETAILED DISCUSSION OF THE TB COMPONENT AND TESTING, PLEASE SEE THE ATTACHED REPORT.
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