Seats. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Steering. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Vehicle Speed Control. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports4 fire reports2 injury reports

Fuel/propulsion System complaints

1 reports

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100,000 miles · May 29, 2014

Electrical SystemFuel/propulsion SystemVehicle Speed Control

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WHILE DRIVING, WENT OVER BUMP IN ROAD, AND TRUCK IMMEDIATELY LOST SPEED. PRESSURE ON GAS PEDAL WEAKEND. THERE WAS ABSOLUTELY NO ACCELERATION. I PULLED OVER AFTER ALMOST BEING HIT, AND TURNED VEHICLE OFF. RESTARTED AND PULL OVER INTO AUTOZONE TO HAVE THEM HOOK IT UP TO DIAGNOSTIC READER. IT CAME BACK WITH SEVERAL CODES, THAT ALL STATED "THROTTLE PEDAL POSITIONER MALFUNCTION" I HAVE BOUGHT AND REPLACED THIS ITEM 4 TIMES SINCE THIS INCIDENT, AND THE PROBLEM STILL EXISTS. I AM FORCED TO DRIVE THE VEHICLE BECAUSE I HAVE TO GET BACK AND FORTH TO WORK, BUT I'M ALWAYS VERY AFRAID THAT THIS PART IS GOING TO MALFUNCTION WHILE IN A BUSY INTERSECTION OR STREET, AND I ALONG WITH MY KIDS ARE GOING TO BE KILLED. IT HAPPENS AT LEAST TWO TO THREE TIME A WEEK, SOMETIMES MORE. *TR

NHTSA ODI #10594921

Official recalls

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

PE05005 · Electric Seat Warmer Overheats/burns

Opened Feb 2, 2005 · Closed Jun 29, 2005

Status: closed (inferred from source dates) · Seats:front Assembly:seat Heater/cooler

THIS INVESTIGATION WAS OPENED BASED ON THREE CONSUMER COMPLAINTS OF ELECTRIC SEAT WARMER OVERHEATING IN MY 2003 MERCEDES BENZ ML-320 VEHICLES.CONSUMERS ALLEGED THAT SUCH FAILURES MAY INFLICT BURN INJURIES TO SEAT OCCUPANTS.INVESTIGATION DISCLOSED THAT THE IDENTICAL SEAT WARMER DESIGN WAS INSTALLED IN 65.5 PERCENT OF ALL M-CLASS VEHICLES PRODUCED DURING MY 2000-2005.THE ALLEGED DEFECT RESULTED FROM BREAKAGE OF THE ELECTRICAL BUS WIRE OF THE HEATER GRID IN THE OUTBOARD SIDE OF THE SEAT BOLSTER.THE FAILURES WERE CAUSED BY REPEATED HIGH STRESS APPLIED DURING OCCUPANT INGRESS AND EGRESS.A SIMILAR FAILURE MODE HAD BEEN PREVIOUSLY IDENTIFIED IN INVESTIGATIONS OF THIS TYPE OF FAILURE IN OTHER VEHICLES.THE RATES OF COMPLAINTS AND WARRANTY CLAIMS FOR THE SUBJECT VEHICLES, AS WELL AS FOR OTHER M-CLASS VEHICLES WITH THE SAME SEAT WARMER DESIGN, WERE IN SOME CASES HIGHER, BUT ON THE SAME ORDER OF MAGNITUDE AS THE RATES SEEN IN OTHER VEHICLES INVESTIGATED.THE INFORMATION DISCLOSED THAT SEAT CUSHION DAMAGE WAS LIMITED TO SMALL, LOCALIZED AREAS AND THAT NO RISK OF FIRE EXISTED.THE INJURIES REPORTED WERE CONSISTENTLY VERY MINOR IN SEVERITY AND AT RATES COMPARABLE TO THOSE SEEN ON OTHER INVESTIGATIONS.ODI CONCLUDED THAT A SAFETY-RELATED DEFECT TREND WAS NOT IDENTIFIED IN THIS MATTER AT THIS TIME.ACCORDINGLY, THIS PE HAS BEEN CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.