NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
231 reportsClear category filter275,000 miles · Sep 2, 2021
Service Brakes, Hydraulic
The contact's wife owns a 1999 Chevrolet Tahoe. The contact stated while driving at a low rate of speed, an abnormal, grinding noise began to emit from the brake pedal upon depression without warning. The contact had to pump the brake pedal as the pedal depressed to the floorboard before coming to a complete stop. The contact th…
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The contact's wife owns a 1999 Chevrolet Tahoe. The contact stated while driving at a low rate of speed, an abnormal, grinding noise began to emit from the brake pedal upon depression without warning. The contact had to pump the brake pedal as the pedal depressed to the floorboard before coming to a complete stop. The contact then took the vehicle to an independent mechanic who informed him that the failure was a known issue with this model vehicle. The mechanic informed him that the vehicle might be under recall. The contact then called a local dealer where he was informed that there were no recalls on the vehicle. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 275,000.
NHTSA ODI #11431498
40,000 miles · Aug 1, 2013
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 1999 CHEVROLET TAHOE. THE CONTACT WAS APPROACHING A TRAFFIC STOP AT 5 MPH AND APPLIED THE BRAKES. A LOUD NOISE THEN EMITTED AS THE VEHICLE BEGAN TO LUNGE FORWARD UNEXPECTEDLY. THE FAILURE RECURRED WHENEVER THE VEHICLE WAS IN OPERATION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FRONT AND RE…
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TL* THE CONTACT OWNS A 1999 CHEVROLET TAHOE. THE CONTACT WAS APPROACHING A TRAFFIC STOP AT 5 MPH AND APPLIED THE BRAKES. A LOUD NOISE THEN EMITTED AS THE VEHICLE BEGAN TO LUNGE FORWARD UNEXPECTEDLY. THE FAILURE RECURRED WHENEVER THE VEHICLE WAS IN OPERATION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FRONT AND REAR BRAKE PADS WERE REPLACED, INCLUDING THE ROTORS. THE ANTI-LOCK BRAKING SYSTEM WAS ALSO DISABLED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 40,000. UPDATED 08/20/13*LJ
NHTSA ODI #10533000
230,000 miles · Mar 9, 2012
Service Brakes, Hydraulic
THE METAL BRAKE LINE THAT RUNS ALONG THE FRAME. WHERE IT GOES UP AND OVER THE REAR AXLE ON THE DRIVERS SIDE. IT RUSTED OUT WITHOUT ANY WARNING. I WAS TURNING INTO MY DRIVEWAY AND THE BRAKE PEDAL WENT TO THE FLOOR. LUCKILY MY DRIVE GOES UP A SMALL INCLINE SO I COASTED IT UP THE HILL BY BARELY GIVING IT ANY GAS AND STOPPED IT BY M…
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THE METAL BRAKE LINE THAT RUNS ALONG THE FRAME. WHERE IT GOES UP AND OVER THE REAR AXLE ON THE DRIVERS SIDE. IT RUSTED OUT WITHOUT ANY WARNING. I WAS TURNING INTO MY DRIVEWAY AND THE BRAKE PEDAL WENT TO THE FLOOR. LUCKILY MY DRIVE GOES UP A SMALL INCLINE SO I COASTED IT UP THE HILL BY BARELY GIVING IT ANY GAS AND STOPPED IT BY MY HOUSE. *TR
NHTSA ODI #10451012
110,000 miles · Feb 29, 2012
Service Brakes, Hydraulic
BRAKE LINES RUSTED, LOSS OF BRAKE FLUID, BRAKE FAILURE IN HEAVY TRAFFIC...VERIFIED BY WASTLERS AUTO IN MD. *TR
NHTSA ODI #10449660
217,000 miles · Feb 3, 2012
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 1999 CHEVROLET TAHOE. THE CONTACT STATED THAT THE WHILE DECELERATING, THE VEHICLE SPEED CONTROL EXHIBITED AN ABNORMAL SHUTTERING NOISE, CAUSING AN INCREASE IN STOPPING TIME AND DISTANCE. THE DEALER AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE, BUT STATED THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CA…
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TL* THE CONTACT OWNS A 1999 CHEVROLET TAHOE. THE CONTACT STATED THAT THE WHILE DECELERATING, THE VEHICLE SPEED CONTROL EXHIBITED AN ABNORMAL SHUTTERING NOISE, CAUSING AN INCREASE IN STOPPING TIME AND DISTANCE. THE DEALER AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE, BUT STATED THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER: 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTI-LOCK). THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 217,000 AND THE CURRENT MILEAGE WAS 220,000. UPDATED03/15/12 *BF UPDATED 05/11/12
NHTSA ODI #10446377
95,068 miles · Dec 18, 2011
Service Brakes, Hydraulic
BOUGHT VEHICLE USED FROM GM DEALER JAN 2003. IN SEPT 2007, THIS GM DEALER REPLACED LEFT FRONT HUB ASSY DUE TO ABS STOPPING PROBLEMS UNDER 10 MPH CHARGING ME $605 (VEHICLE HAD 95,000 MILES). IN DEC 2011, AT 151,000 MILES THE VEHICLE AGAIN HAD ABS STOPPED PROBLEMS UNDER 10 MPH. THIS TIME REPAIRS REQUIRED FROM ANOTHER GM DEALER WE…
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BOUGHT VEHICLE USED FROM GM DEALER JAN 2003. IN SEPT 2007, THIS GM DEALER REPLACED LEFT FRONT HUB ASSY DUE TO ABS STOPPING PROBLEMS UNDER 10 MPH CHARGING ME $605 (VEHICLE HAD 95,000 MILES). IN DEC 2011, AT 151,000 MILES THE VEHICLE AGAIN HAD ABS STOPPED PROBLEMS UNDER 10 MPH. THIS TIME REPAIRS REQUIRED FROM ANOTHER GM DEALER WERE REPLACEMENT OF TWO NEW FRONT ABS SENSORS CHARGING ME $340. BOTH DEALERS STATED NOT COVERED UNDER NHTSA 05V379000. *TR
NHTSA ODI #10440329
155,000 miles · Sep 2, 2011
Service Brakes, Hydraulic
I HAVE CHEVY TAHOE 1999,WHILE TRAVELING IN LOW SPEED ABOUT 20 MILES PER HOUR,I NEEDED TO STOP BEHIND CARS STOPPING IN FRONT OF ME FOR RED SIGNAL. I PUSHED THE BRAKE PEDAL AND IT FELT SOFT, BRAKING POWER WAS WEEK AND EVENTUALLY I HID THE CAR IN FRONT OF ME. FORTUNATELY NO INJURY. I HAD MY SUV CHECKED AND TO MY SURPRISE, I HA…
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I HAVE CHEVY TAHOE 1999,WHILE TRAVELING IN LOW SPEED ABOUT 20 MILES PER HOUR,I NEEDED TO STOP BEHIND CARS STOPPING IN FRONT OF ME FOR RED SIGNAL. I PUSHED THE BRAKE PEDAL AND IT FELT SOFT, BRAKING POWER WAS WEEK AND EVENTUALLY I HID THE CAR IN FRONT OF ME. FORTUNATELY NO INJURY. I HAD MY SUV CHECKED AND TO MY SURPRISE, I HAVE BEEN TOLD THAT MY TAHOE HAS RUPTURED BREAK LINE DU TO COMPLETE RUST IN ALL THE BREAK LINES. TO ME THIS IS A VERY SERIOUS SAFETY MATTER,AND AS I HEAR IT IS VERY COMMON WITH GM TRUCKS . CONSIDERING THE SIZE AND MASS OF MY SUV I COULD BE INVOLVE IN FATAL ACCIDENT COMPROMISING LIFE OF MANY PEOPLES. *TR
NHTSA ODI #10423115
120,000 miles · May 18, 2011
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 1999 CHEVROLET TAHOE. WHILE DRIVING APPROXIMATELY 4 MPH, THE VEHICLE LUNGED FORWARD. THE FAILURE OCCURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO A MECHANIC WHERE THE WHEEL SPEED SENSOR AND WHEEL BEARING HUBS WERE REPLACED. AFTER THE VEHICLE WAS REPAIRED THE FAILURE CONTINUED. THE VEHICLE WAS NOT REPAIRED.…
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TL*THE CONTACT OWNS A 1999 CHEVROLET TAHOE. WHILE DRIVING APPROXIMATELY 4 MPH, THE VEHICLE LUNGED FORWARD. THE FAILURE OCCURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO A MECHANIC WHERE THE WHEEL SPEED SENSOR AND WHEEL BEARING HUBS WERE REPLACED. AFTER THE VEHICLE WAS REPAIRED THE FAILURE CONTINUED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 120,000.
NHTSA ODI #10401466
155,000 miles · Mar 21, 2011
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 1999 CHEVROLET TAHOE. THE CONTACT STATED THAT WHEN TRYING TO DECELERATE AT LOW SPEEDS, THE BRAKES WOULD EXHIBIT A LOUD NOISE AND THERE WAS AN INCREASE IN STOPPING DISTANCE. THE VEHICLE WAS NOT INSPECTED OR REPAIRED BY A DEALER OR MECHANIC. THE FAILURE MILEAGE WAS APPROXIMATELY 155,000.
NHTSA ODI #10392350
153,412 miles · Nov 28, 2010
Service Brakes, Hydraulic
ABS ACTIVATED WHEN ATTEMPTING TO STOP ON SEVERAL OCCASIONS ON OCTOBER 17, 2010 ON MY 1999 CHEVY TAHOE. *TR
NHTSA ODI #10368024
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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