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2002 GMC Yukon Xl

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2002 GMC Yukon Xl do not stand out strongly from the model-year median of 68.

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How this year compares

Owner complaints by model year

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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

80 reports with mileage · 15 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 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports1 fire reports2 injury reports

What owners actually said

95 reports
376 miles · Sep 18, 2003
Service Brakes, Hydraulic

I HAVE A 2002 GMC YUKON XL. I BOUGHT THE VEHICLE BRAND NEW IN JUNE OF 2002. AT 376 MILES MY BRAKE SYSTEM LOCKED UP. I HAVE CONTINUED TO HAVE THIS PROBLEM EVER SINCE. AS YOUR DRIVING THE BRAKES APPLY AND YOU LOOSE CONTROL OF YOUR STEERING. THIS PROBLEM DOES NOT OCCUR ALL THE TIME, BUT DOES HAPPEN. THEY HAVE REPLACED MY MAST…

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I HAVE A 2002 GMC YUKON XL. I BOUGHT THE VEHICLE BRAND NEW IN JUNE OF 2002. AT 376 MILES MY BRAKE SYSTEM LOCKED UP. I HAVE CONTINUED TO HAVE THIS PROBLEM EVER SINCE. AS YOUR DRIVING THE BRAKES APPLY AND YOU LOOSE CONTROL OF YOUR STEERING. THIS PROBLEM DOES NOT OCCUR ALL THE TIME, BUT DOES HAPPEN. THEY HAVE REPLACED MY MASTER CYLINDER, POWER BOOSTER, AND ALL 4 ROTORS. THIS PROBLEM IS STILL NOT FIXED AND BECAUSE THE DEALERSHIP CAN NOT GET IT TO DUPLICATE THE PROBLEM WHILE THEY ARE DRIVING IT, THEY SAY THERE IS NOTHING ELSE THEY CAN DO. I AM FILING THIS COMPLAINT BECAUSE I FEAR FOR MY SAFETY. THE LAST TIME IT HAPPENED ON 9/11/03 IT WAS TOWED TO THE NEAREST DEALERSHIP, THEY HAVE INFORMED ME THERE IS NOTHING THEY CAN DO. I HAVE LEFT THE VEHICLE THERE BECAUSE I FEAR DRIVING IT. LAST THING I HEARD WAS THEY WERE SHIPPING IT TO THE DEALERSHIP WHERE I BOUGHT IT BECAUSE IT WAS THERE PROBLEM. PLEASE IF YOU KNOW ANYTHING I CAN DO PLEASE LET ME KNOW. I WOULD LIKE TO ADD THAT THERE HAS BEEN EVIDENCE OF DEFECT BECAUSE THE ROTORS HAVE SHOWN DAMAGE DUE TO DEFECT. *JB

NHTSA ODI #10039100

24,000 miles · Aug 14, 2003
Tires

I BOUGHT A NEW 2002 YUKON XL WHICH CAME WITH FIRESTONE WILDERNESS LE TIRES INCLUDING THE SPARE. I HAVE ROTATED ALL TIRES PROPERLY AND ACCORDING TO THE MAINTENANCE SCHEDULE, EVERY THREE TO FIVE THOUSAND MILES. I HAVE HAD THE FRONT END ALIGNMENT CHECK OUT, WHICH WAS FOUND TO BE PERFECTLY IN ALIGNMENT. THE TIRES HAVE 24,000 MILES O…

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I BOUGHT A NEW 2002 YUKON XL WHICH CAME WITH FIRESTONE WILDERNESS LE TIRES INCLUDING THE SPARE. I HAVE ROTATED ALL TIRES PROPERLY AND ACCORDING TO THE MAINTENANCE SCHEDULE, EVERY THREE TO FIVE THOUSAND MILES. I HAVE HAD THE FRONT END ALIGNMENT CHECK OUT, WHICH WAS FOUND TO BE PERFECTLY IN ALIGNMENT. THE TIRES HAVE 24,000 MILES ON THEM. ALL FOUR OF MY TIRES ARE DEFECTIVE WITH HIGH/LOW SPOTS ON THE OUTSIDE AND INSIDE TREAD. THE THREE CENTER ROWS OF TREAD ARE WEARING PERFECTLY CORRECT AND EVEN. THE TIRE SHOP AND THE DEALERSHIP RECCOMMENDS REPLACING ALL THE TIRES BECAUSE THEY ARE A SAFETY HAZARD AND COULD POSSIBLY CAUSE ME TO HAVE AN ACCIDENT AT HIGHER HIGHWAY SPEEDS.*AK

NHTSA ODI #10032851

Mileage unknown · Aug 7, 2003
Fuel System, Gasoline

THE CONSUMER HAD DIFFICULTY FILLING THE GAS TANK. THE CONSUMER NOTICED THE TANK HAD TO BE FILLED SLOWLY. WHEN REACHING ABOUT 3/4 FULL, FUEL LEAKED OUT. CONSUMER CONTACTED GM THEY CLAIMED THERE WAS A BULLETIN OUT REGARDING THE PROBLEM AND THE DEALERSHIP NEVER FIXED THE VEHICLE. CONSUMER FELT GM SHOULD ISSUE A RECALL ON THE D…

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THE CONSUMER HAD DIFFICULTY FILLING THE GAS TANK. THE CONSUMER NOTICED THE TANK HAD TO BE FILLED SLOWLY. WHEN REACHING ABOUT 3/4 FULL, FUEL LEAKED OUT. CONSUMER CONTACTED GM THEY CLAIMED THERE WAS A BULLETIN OUT REGARDING THE PROBLEM AND THE DEALERSHIP NEVER FIXED THE VEHICLE. CONSUMER FELT GM SHOULD ISSUE A RECALL ON THE DEFECTIVE VEHICLE. *AK *CB *JB

NHTSA ODI #10027040

23,000 miles · Aug 2, 2003
Electrical SystemSuspension

ELECTRICAL FAILURE OF THE LOAD LEVELING DEVICE. FUSES CONSISTANTLY FAIL WHEN COMPRESSER ACTIVATES WHEN LOAD IS IN OR ON VEHICLE. THIS OCCURS WITH OR WITHOUT A TRAILER HOOKED UP. THIS HAS BEEN A PROBLE SINCE THE PURCHASE OF THE VEHICLE IN MID 2002. ATTEMPTED TO BE FIXED THREE TIMES IN THE LASE 30 DAYS. DEALER UNABLE TO ISOLA…

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ELECTRICAL FAILURE OF THE LOAD LEVELING DEVICE. FUSES CONSISTANTLY FAIL WHEN COMPRESSER ACTIVATES WHEN LOAD IS IN OR ON VEHICLE. THIS OCCURS WITH OR WITHOUT A TRAILER HOOKED UP. THIS HAS BEEN A PROBLE SINCE THE PURCHASE OF THE VEHICLE IN MID 2002. ATTEMPTED TO BE FIXED THREE TIMES IN THE LASE 30 DAYS. DEALER UNABLE TO ISOLATE THE PROBLEM. INDEPENDANT MECHANIC SAYS DUE TO ELECTRICAL PROBLEM HIGH PROBABLY OF FIRE OR BURN OUT OF WIRING.*AK

NHTSA ODI #10030654

Mileage unknown · Jul 28, 2003
Power Train

SEVERAL OCCURRENCES WITH VEHICLE'S TRANSMISSION. NAR 07/28/2003*MR DEALER NOTIFIED. *CB

NHTSA ODI #10032490

23,079 miles · Jun 2, 2003
TiresFire

FIRESTONE TIRE EXPLODED WHILE DRIVING SPEED LIMIT TOO LAKE HAVASU, AZ, MAY 28, CAUSING ERRATIC CONTROL OF VEHICLE. APPEARS SIDEWALL DISLODGED FROM TIRE AND AND TREAD DISLODGED FROM BASE TIRE FRAMING. TIRE INFO: FIRESTONE WILDERNESS LE - P265/70R16 111S M/S; TUBELESS; OTHER NUMBER ON SIDE OF TIRE: DD726G G09R (E4) 02768…

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FIRESTONE TIRE EXPLODED WHILE DRIVING SPEED LIMIT TOO LAKE HAVASU, AZ, MAY 28, CAUSING ERRATIC CONTROL OF VEHICLE. APPEARS SIDEWALL DISLODGED FROM TIRE AND AND TREAD DISLODGED FROM BASE TIRE FRAMING. TIRE INFO: FIRESTONE WILDERNESS LE - P265/70R16 111S M/S; TUBELESS; OTHER NUMBER ON SIDE OF TIRE: DD726G G09R (E4) 027680 DOT 8 X 72 WL2 .DAMAGED AREA SHOWS A NUMBER ?4601? (? = DENOTES UNKNOWN NUMBERS IF ANYIN THESE PLACES) DAMAGE TO UNDERCARRAGE OF VEHICLE AS WELL TO THE WHEEL WELL.*AK

NHTSA ODI #10020892

Mileage unknown · May 22, 2003
Steering

THE SERVICE DEALER STATED THERE WAS A TOW OUT PROBLEM WITH THE VEHICLE. THE TIRES WORE OUT EVERY 5,000 MILES. PLEASE PROVIDE DETAILS. *JB

NHTSA ODI #10020386

66,000 miles · May 20, 2003
Fuel System, Gasoline

2000 GMC YUKON XL. FUEL LEAK IN MY GARAGE AFTER FILLING GAS TANK. LEAKED AT LEAST 6-8 GALLONS OF FUEL INTO GARAGE. SERVICE FACILITY DIAGNOSED PROBLEM TO BE FAULTY PLUNGER IN FUEL PUMP. VERY DANGEROUS, SINCE MY GARAGE CONTAINS GAS HOT WATER HEATER WITH PILOT. HAZARDOUS MATERIAL CLEANUP (REQUIRED BY FIRE DEPARTMENT) COST $160…

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2000 GMC YUKON XL. FUEL LEAK IN MY GARAGE AFTER FILLING GAS TANK. LEAKED AT LEAST 6-8 GALLONS OF FUEL INTO GARAGE. SERVICE FACILITY DIAGNOSED PROBLEM TO BE FAULTY PLUNGER IN FUEL PUMP. VERY DANGEROUS, SINCE MY GARAGE CONTAINS GAS HOT WATER HEATER WITH PILOT. HAZARDOUS MATERIAL CLEANUP (REQUIRED BY FIRE DEPARTMENT) COST $1600. *NLM

NHTSA ODI #10018970

26,665 miles · May 20, 2003
Tires

I WAS DRIVING ABOUT 70 MPH WHEN MY LEFT REAR TIRE BLEW OUT. TIRE HAD ABOUT 26,600 MILES AND WAS IN GOOD CONDITION UNTIL THIS TIME. TIRE HAD ABOUT 35 PSI. *NLM

NHTSA ODI #10018962

9,895 miles · Mar 21, 2003
Service Brakes, Hydraulic

THE BRAKE LINE (A METAL ROD, NOT HOSE) BROKE OFF, ON AN ICE MOUNTAIN ROAD ON DECEMBER 23, 2002. THE CAR WAS BRAND NEW WITH 9800 MILES ON IT AND THERE MY THREE CHILDREN AGES 3, 3, AND 5 WERE IN THE CAR. WE WERE TOWED DOWN THE MOUNTAIN FOR 60 MILES. GENERAL MOTORS FIXED THE BRAKE LINE AND TOOK OVER TWO MONTHS TO GET BACK TO…

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THE BRAKE LINE (A METAL ROD, NOT HOSE) BROKE OFF, ON AN ICE MOUNTAIN ROAD ON DECEMBER 23, 2002. THE CAR WAS BRAND NEW WITH 9800 MILES ON IT AND THERE MY THREE CHILDREN AGES 3, 3, AND 5 WERE IN THE CAR. WE WERE TOWED DOWN THE MOUNTAIN FOR 60 MILES. GENERAL MOTORS FIXED THE BRAKE LINE AND TOOK OVER TWO MONTHS TO GET BACK TO ME WITH A $55.00 REIMBURSEMENT FOR THE CAR RENTAL. THIS COULD HAVE BEEN CATASTROPHIC FOR MY FAMILY. THE CAR COULD NOT STOP AT ALL. *NLM

NHTSA ODI #10010848

Official recalls

1

05V379000 · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip

Aug 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.

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

3

DP05009 · 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.

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.