NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
45 reportsClear category filter190,000 miles · Jul 31, 2017
Power Train
WHILE DRIVING WITH MY FAMILY IN THE CAR AND WITHOUT WARNING, THE CAR STOPPED MOVING. IN THE MIDDLE OF AN INTERSECTION IT WAS AS IF IT WAS IN NEUTRAL. THIS WAS TERRIFYING, THEN ALL OF A SUDDEN IT FELT LIKE I WAS HIT FROM BEHIND AND THE CAR POPPED INTO GEAR AND SHOT FORWARD. I NOW HAVE NO REVERSE AND UNSURE WHICH GEARS MIGHT WORK,…
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WHILE DRIVING WITH MY FAMILY IN THE CAR AND WITHOUT WARNING, THE CAR STOPPED MOVING. IN THE MIDDLE OF AN INTERSECTION IT WAS AS IF IT WAS IN NEUTRAL. THIS WAS TERRIFYING, THEN ALL OF A SUDDEN IT FELT LIKE I WAS HIT FROM BEHIND AND THE CAR POPPED INTO GEAR AND SHOT FORWARD. I NOW HAVE NO REVERSE AND UNSURE WHICH GEARS MIGHT WORK, AS I IMMEDIATELY GOT IT HOME. I AM A DISABLED VETERAN ON A LIMITED INCOME AND NO AM FACING POSSIBLY HUGE EXPENSES FOR TRANSMISSION REPAIRS THAT I NOW HAVE READ HAVE BEEN COMPLAINTS ON MY CAR FOR YEARS! I CAN'T UNDERSTAND HOW GM/CHEVROLET DOESN'T SEE TRANSMISSION ISSUES AS A SAFETY PROBLEM. THIS TRANSMISSION HAS HAD WAY TOO MANY COMPLAINTS. HAVING NO WARNING AND THE INABILITY TO BE ABLE TO MOVE THE CAR IN AN INTERSECTION COULD HAVE BEEN CATASTROPHIC!! ALOS WHEN CALLING A LOCAL DEALERSHIP THEY SHOULD BE BETTER INFORMED ABOUT ANY TSB'S AS TO INFORM CONSUMERS. I JUST THANK GOD MY FAMILY IS SAFE, HOWEVER AM NOW OUT OF A CAR. THANKS GENERAL MOTORS/CHEVROLET, LOOKS LIKE YOURE LOSING ANOTHER LOYAL CUSTOMER.
NHTSA ODI #11011702
119,900 miles · Apr 2, 2008
Power Train
JUST DRIVING DOWN THE HIGHWAY AND CAR JUST STOPPED GOING AFTER SEVERAL ATTEMPTS I GOT THE VEHICLE TO GO INTO GEAR AND DROVE TO DEALER THE VEHICLE WAS WORKING FINE AND THE WAS NO INDICATION OF PENDING TRANSMISSION FAILURE. HAVE TO PUT IN NEW TRANSMISSION THIS IS THE SECOND ONE IN THIS VEHICLE THAT HAS 119,900 ON IT. *TR …
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JUST DRIVING DOWN THE HIGHWAY AND CAR JUST STOPPED GOING AFTER SEVERAL ATTEMPTS I GOT THE VEHICLE TO GO INTO GEAR AND DROVE TO DEALER THE VEHICLE WAS WORKING FINE AND THE WAS NO INDICATION OF PENDING TRANSMISSION FAILURE. HAVE TO PUT IN NEW TRANSMISSION THIS IS THE SECOND ONE IN THIS VEHICLE THAT HAS 119,900 ON IT. *TR
NHTSA ODI #10223209
120,000 miles · Jun 15, 2007
Power Train
DEFECTIVE TRANSFER CASING / DRIVE TRAIN CAUSING SUDDEN INABILITY TO DRIVE VEHICLE. NO ABILITY TO CHECK TRANSFER CASING OIL WITHOUT GOING UNDER VEHICLE FOR INSPECTION. *AK
NHTSA ODI #10193426
107,660 miles · Feb 13, 2006
Power TrainService Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE DRIVING 5 MPH SLOWING DOWN TO A STOP, THE ANTILOCK BRAKES ENGAGED WITHOUT WARNING. THIS OCCURRED ON A NORMAL ROAD DURING NORMAL BRAKING. THE DEALERSHIP AND MANUFACTURER WERE NOTIFIED HOWEVER NO REPAIRS WERE MADE. UPDATED 3/17/2006 - THE CONSUMER'S VEHICLE WAS NOT INCLUDED INT HE ABS RECALL. THE…
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DT*: THE CONTACT STATED WHILE DRIVING 5 MPH SLOWING DOWN TO A STOP, THE ANTILOCK BRAKES ENGAGED WITHOUT WARNING. THIS OCCURRED ON A NORMAL ROAD DURING NORMAL BRAKING. THE DEALERSHIP AND MANUFACTURER WERE NOTIFIED HOWEVER NO REPAIRS WERE MADE. UPDATED 3/17/2006 - THE CONSUMER'S VEHICLE WAS NOT INCLUDED INT HE ABS RECALL. THE CONSUMER HEARD A SQUEAKING NOISE IN THE DRIVELINE. THE DEALER REPLACED THE REAR UNIVERSAL JOINT IN THE DRIVESHAFT. *NM
NHTSA ODI #10150153
171,000 miles · May 4, 2005
Power Train
THIS IS THE SECOND TIME I HAVE HAD TO REPAIR MY TRANSMISSION IN MY '99 TAHOE. THE FIRST INCIDENT LEFT ME STRANDED AT 50K MILES. LUCKY I HAD AND EXTENDED WARRANTY. THE REPAIR SHOP HAD TO DO A FULL ANALYSIS TO DETERMINE THE FAILURE WHICH HAD SOMETHING TO DO WITH A WEAK RINGREVERSE GEAR? THIS TIME IT APPEARS THE SAME PROBLEM HAS O…
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THIS IS THE SECOND TIME I HAVE HAD TO REPAIR MY TRANSMISSION IN MY '99 TAHOE. THE FIRST INCIDENT LEFT ME STRANDED AT 50K MILES. LUCKY I HAD AND EXTENDED WARRANTY. THE REPAIR SHOP HAD TO DO A FULL ANALYSIS TO DETERMINE THE FAILURE WHICH HAD SOMETHING TO DO WITH A WEAK RINGREVERSE GEAR? THIS TIME IT APPEARS THE SAME PROBLEM HAS OCCURRED AGAIN, ONLY NOW I HAVE 170K MILES. I WOULD HAVE EXPECTED THE ENGINE TO GO FIRST. THE REPAIR SHOP SAID SOMETHING SIMILAR HAS HAPPENED THIS TIME AS WELL.
NHTSA ODI #10119876
74,039 miles · Sep 21, 2004
Fuel System, GasolinePower Train
FUEL LEAKS FROM THE CENTRAL PORT INJECTIONS INTO THE ONBOARD COMPUTER. AS A RESULT, THE VEHICLE BECOMES INOPERATIVE. A RECALL WAS ISSUED. HOWEVER, THIS VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO VIN. *AK THE PCM WAS REPLACED. A MISFIRED IN THE 3 CYLINDERS AND 3 INJECTOR WERE REPLACED. *SC *JB
NHTSA ODI #10089740
116,670 miles · Sep 14, 2004
Power TrainVisibility
WINDSHIELD WIPERS, JUNK, TRANSMISSION JUNK,TRANSFER CASE JUNK AND REAR END JUNK. HAD THE EXACT SAME PROBLEMS WITH 1997 4X4 SUBURBAN, KNOW MANY PEOPLE HAVING SAME PROBLEMS NOW. THERE SHOULD BE SOME TYPE OF RECALL OR SERVICE BULLETIN. THESE PROBLEMS HAVE EXISTED FOR YEARS. MAY START BUYING FOREIGN AT LEAST THEY STAND BY WHAT THEY…
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WINDSHIELD WIPERS, JUNK, TRANSMISSION JUNK,TRANSFER CASE JUNK AND REAR END JUNK. HAD THE EXACT SAME PROBLEMS WITH 1997 4X4 SUBURBAN, KNOW MANY PEOPLE HAVING SAME PROBLEMS NOW. THERE SHOULD BE SOME TYPE OF RECALL OR SERVICE BULLETIN. THESE PROBLEMS HAVE EXISTED FOR YEARS. MAY START BUYING FOREIGN AT LEAST THEY STAND BY WHAT THEY BUILD. MUST WE WAIT UNTIL PEOPLE ARE INJURED. *JB
NHTSA ODI #10087060
85,000 miles · Sep 1, 2004
Power Train
WHEN DRIVING TO WORK IN THE MORNING I CAME TO A STOP LIGHT A COUPLE OF BLOCKS FROM MY HOUSE AND WHEN I CAME TO A STOP THE 99 TAHOE LURCHED FORWARD A COUPLE OF TIMES AND THEN STOPPED. I HAD TO HOLD THE BRAKE DOWN HARD TO KEEP FROM HITTING THE CAR IN FRONT OF ME. AFTER THAT LIGHT THE AUTOMOBLE WORKED FINE. AFTER WORK THE SAME THIN…
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WHEN DRIVING TO WORK IN THE MORNING I CAME TO A STOP LIGHT A COUPLE OF BLOCKS FROM MY HOUSE AND WHEN I CAME TO A STOP THE 99 TAHOE LURCHED FORWARD A COUPLE OF TIMES AND THEN STOPPED. I HAD TO HOLD THE BRAKE DOWN HARD TO KEEP FROM HITTING THE CAR IN FRONT OF ME. AFTER THAT LIGHT THE AUTOMOBLE WORKED FINE. AFTER WORK THE SAME THING HAPPENED ON THE WAY HOME. THIS HAPPENS EVERY MORNING AND AFTERNOON OR WHEN THE CAR SITS FOR A LONG PERIOD OF TIME. THE DEALER HAD A HARD TIME FINDING THE PROBLEM BUT WHAT HE CAME UP WITH WAS THAT THE WIRING HARNESS INSIDE THE TRANSMISSION HAD SHORTED OUT CAUSEING THE PCM MODUAL TO BURN UP. THEY DIDN'T SEEM TO THINK IT WAS A SAFTY HAZARD. THE CAR IS IN THE DEALER NOW GETTING THE WIRE HARNESS AND THE PCM MODUAL REPLACED AND REPROGRAMED. I CANNOT FIND ANY RECALL NOTICES FOR THIS PROBLEM. I ASKED FOR THE OLD PARTS TO BE RETURNED TO ME.I WILL PICK THE CAR UP TODAY 09/01/04 WITH THE BILL AT OVER A THOUSAND DOLLARS.*AK
NHTSA ODI #10088933
Mileage unknown · Aug 14, 2004
Power Train
VEHICLE STARTED SURGING WHILE GOING DOWN THE ROAD,ALSO HARD SHIFT BETWEEN 1ST AND 2ND GEARS.ALSO HAVE WIPER PROBLEMS. *AK
NHTSA ODI #10086866
72,098 miles · Aug 6, 2004
Power Train
TRANSFER CASE FOR THE 4X4. THIS WAS THE MOST EXPENSIVE ITEM TO REPAIR. GM NEEDS TO GET A GRIP ON ALL PROBLEMS WRONG WITH THIS TAHOE. GRINDING NOISE WHEN ENGAGING THE 4X4 YOU THOUGHT THE BOTTOM OF THE SUV WAS TO DROP OUT. ALSO THE KNOCKING IN THE AXLE WHEN YOU START FROM A STOP.*AK
NHTSA ODI #10086324
NHTSA investigations
5PE05020 · 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.
PE03026 · Steel Wheel Rim Fracture
Opened Jun 12, 2003 · Closed Nov 3, 2003
Status: closed (inferred from source dates) · Wheels; Wheels:multi Piece; Wheels:rim
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Additional source detail variants (3)
Wheels
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Wheels:multi Piece
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Wheels:rim
THERE HAVE BEEN LESS THAN 2 COMPLAINTS PER 100,000 SUBJECT VEHICLES RELATED TO THE ALLEGED DEFECT.THE OLDEST VEHICLES (MY 1999) HAVE ONLY 2 COMPLAINTS IN OVER 140 THOUSAND VEHICLES AFTER OVER 4 YEARS IN SERVICE.THE RATE OF WARRANTY CLAIMS POTENTIALLY RELATED TO THE ALLEGED DEFECT IS LESS THAN 0.1%.THERE ARE NO KNOWN INCIDENTS INVOLVING RAPID LOSS OF TIRE PRESSURE OR LOSS OF VEHICLE CONTROL. A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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 WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
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.
PE01023 · Seat Belt Anchorage Separation
Opened Jul 17, 2001 · Closed Dec 20, 2001
Status: closed (inferred from source dates) · Seat Belts:front:anchorage
ODI HAS RECEIVED ONE (1) COMPLAINT ALLEGING THAT THE 2ND ROW PASSENGER-SIDE SEAT BELT RELEASE BUCKLE ANCHOR DETACHED FROM SEAT FRAME DURING A SIDE IMPACT CRASH.DURING THE CRASH, THE OCCUPANT WAS THROWN FROM HIS SEAT, PARTIALLY EJECTED THROUGH THE REAR QUARTER WINDOW OF THE VEHICLE.OCCUPANT SUSTAINED INJURY.GM HAS SUBSEQUENTLY CHANGED SEAT BELT ANCHORING DESIGN IN MY 2000. ODI HAS COMPLETED A PRELIMINARY INVESTIGATION AND HAS DETERMINED THAT FURTHER INFORMATION IS NEEDED TO DETERMINE WHETHER A SAFETY DEFECT EXISTS.
EA99011 · Erratic Power Steering Assist While Driv
Opened May 12, 1999 · Closed Feb 27, 2001
Status: closed (inferred from source dates) · Steering
THE OFFICE OF DEFECT INVESTIGATION (ODI) HAS INVESTIGATED ALLEGATIONS OF POWER STEERING ASSIST FLUCTUATIONS IN THE SUBJECT VEHICLES.FOR DETAILS AND A BASIS FOR THE INVESTIGATION CONCLUSIONS, PLEASE SEE THE CLOSING REPORT IN THE EA99-011 PUBLIC FILE.ODI HAS NOT IDENTIFIED A SAFETY-RELATED DEFECT TREND IN THE SUBJECT VEHICLE POPULATION.FUTHER EXPENDITURE OF AGENCY RESOURCES ON THIS SUBJECT DOES NOT APPEAR TO BE WARRANTED AT THIS TIME.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.THE ENGINEERING IS CLOSED.
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