NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
364 reports43,528 miles · Feb 28, 2011
Power Train
WHEN I AM DRIVING MY FORD 500 A WRENCH LIGHT COMES ON AT DIFFERENT TIMES AND LOCKS MY TRANSMISSION AND IT DECELERATES. I TOOK IT TO THE DEALERSHIP AND THEY TOLD ME IT WAS THE THROTTLE BODY AND I HAD IT REPLACED, IT STILL SEEMS TO BE DOING IT. I HAS HAPPENED MANY TIMES SINCE THE FIRST INCIDENT. LOOKED IT UP AND MANY FORD 500S, FR…
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WHEN I AM DRIVING MY FORD 500 A WRENCH LIGHT COMES ON AT DIFFERENT TIMES AND LOCKS MY TRANSMISSION AND IT DECELERATES. I TOOK IT TO THE DEALERSHIP AND THEY TOLD ME IT WAS THE THROTTLE BODY AND I HAD IT REPLACED, IT STILL SEEMS TO BE DOING IT. I HAS HAPPENED MANY TIMES SINCE THE FIRST INCIDENT. LOOKED IT UP AND MANY FORD 500S, FREESTYLES, AND MONTEGOS KEEP DOING THE SAME THING. SOMETHING NEEDS TO BE DONE BEFORE SOMEBODY GETS HURT. *TR
NHTSA ODI #10384749
45,000 miles · Feb 22, 2011
Power Train
TL*THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, HE NOTICED THAT THE GEARS BECAME DIFFICULT TO SHIFT. IN ORDER TO GET THE GEARS TO SHIFT, THE CONTACT HAD TO GENTLY RELEASE THE ACCELERATOR PEDAL. NO WARNING LIGHTS ILLUMINATED TO INDICATE A FAILURE. THE VEHICLE WAS INSPECTED BY…
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TL*THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, HE NOTICED THAT THE GEARS BECAME DIFFICULT TO SHIFT. IN ORDER TO GET THE GEARS TO SHIFT, THE CONTACT HAD TO GENTLY RELEASE THE ACCELERATOR PEDAL. NO WARNING LIGHTS ILLUMINATED TO INDICATE A FAILURE. THE VEHICLE WAS INSPECTED BY A DEALER AND THEY STATED THAT THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 45,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10383983
86,000 miles · Jan 30, 2011
Equipment
2006 FORD FIVE HUNDRED, AT THE 86,000 MARK INSTRUMENT PANEL STARTED ACTING UP. ALL OR SOME OF THE WARNING LIGHTS (WRENCH, SEAT BELT, ENGINE, ETC.) WOULD ALL COME ON AND TURN OFF, AT DIFFERENT TIMES AND WEATHER CONDITIONS. WHEN THEY CAME ON THE RADIO SOUND WOULD LOWER TOO. THE SAFETY ISSUE IS ALL THE GAGES, EXCEPT THE AMOUNT OF G…
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2006 FORD FIVE HUNDRED, AT THE 86,000 MARK INSTRUMENT PANEL STARTED ACTING UP. ALL OR SOME OF THE WARNING LIGHTS (WRENCH, SEAT BELT, ENGINE, ETC.) WOULD ALL COME ON AND TURN OFF, AT DIFFERENT TIMES AND WEATHER CONDITIONS. WHEN THEY CAME ON THE RADIO SOUND WOULD LOWER TOO. THE SAFETY ISSUE IS ALL THE GAGES, EXCEPT THE AMOUNT OF GAS, WOULD GO TO ZERO AS WELL, MAKING IT IMPOSIBLE TO KNOW YOUR SPEED. CALLED AROUND AND FOUND IT WOULD COST $700 TO FIX. THIS SEEMS TO BE A FORD MANUFACTURE PROBLEM. I CONTACTED FORD AND WAS TOLD IN SO MANY WORDS THAT WAS MY PROBLEM SINCE THEY WERE NOT TOLD TO FIX IT BY NHTSA. *TR
NHTSA ODI #10379609
Mileage unknown · Jan 11, 2011
Electrical SystemElectronic Stability Control (esc)
I HAD A 2006 FORD FIVE HUNDRED AT FIRST I LOVED THAT CAR THEN THE BATTERY STARED GOING DEAD SO I REPLACED THE BATTERY BUT IT STILL DID IT SO I HAD IT LOOKED AT AND THEY TOLD ME THAT IT WAS THE ALTERNATOR GOING OUT SO I REPLACED THAT BUT COME TO FIND OUT AFTER 2 BATTERIES AND 3 ALTERNATORS IT WAS A WIRING PROBLEM AND FINALLY THE …
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I HAD A 2006 FORD FIVE HUNDRED AT FIRST I LOVED THAT CAR THEN THE BATTERY STARED GOING DEAD SO I REPLACED THE BATTERY BUT IT STILL DID IT SO I HAD IT LOOKED AT AND THEY TOLD ME THAT IT WAS THE ALTERNATOR GOING OUT SO I REPLACED THAT BUT COME TO FIND OUT AFTER 2 BATTERIES AND 3 ALTERNATORS IT WAS A WIRING PROBLEM AND FINALLY THE WIRING PROBLEM ENDED UP FRYING THE COM[UTER IN MY CAR AND IT WAS GOING TO COST ME A WHOLE LOT OF MONEY TO FIX IT AND I DIDN'T HAVE THAT TYPE OF MONEY IT WAS MORE MONEY THEN THE CAR WAS WORTH I HAVE TALKED TO SEVERAL PEOPLE WHO SAY THAT THEY HAVE HAD THE SAME PROBLEM SO A WORD TO THE WISE DO NOT BUY A FORD FIVE HUNDRED !!! *TR
NHTSA ODI #10376246
78,000 miles · Jan 6, 2011
Vehicle Speed Control
TL*THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. WHILE DRIVING APPROXIMATELY 35 MPH, THE CONTACT ATTEMPTED TO INCREASE SPEED , BUT VEHICLE WOULD NOT ACCELERATE. THE CONTACT CONTINUED TO APPLY PRESSURE TO THE ACCELERATOR PEDAL. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIANS STATED THE EGR VALVE, THE THROTTLE BODY AND THE …
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TL*THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. WHILE DRIVING APPROXIMATELY 35 MPH, THE CONTACT ATTEMPTED TO INCREASE SPEED , BUT VEHICLE WOULD NOT ACCELERATE. THE CONTACT CONTINUED TO APPLY PRESSURE TO THE ACCELERATOR PEDAL. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIANS STATED THE EGR VALVE, THE THROTTLE BODY AND THE MASS FLOW AIR SENSOR NEEDED TO BE REPLACED. THE TECHNICIAN STATED THAT HE COULD NOT GUARANTEE THAT THE FAILURE WOULD NOT OCCUR AGAIN AFTER THE REPAIRS. THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 78,000.
NHTSA ODI #10374914
39,000 miles · Dec 29, 2010
EquipmentPower TrainVehicle Speed Control
STARTING SINCE FEBRUARY 2010. MY CAR LUNGES FORWARD WHENEVER AT A DEAD STOP. WHEN SHIFTING TO DRIVE AND REVERSE. I HAVE HAD TO HAVE MY FOOT ON BRAKE AND EVEN ALMOST HAD AN ACCIDENT WHILE PARKING AND HIT THE WALL. WENT TO DEALERSHIP AND FIRST THEY SAID IT WAS MY ENGINE MOUNT THAT WAS CAUSING IT. THEN WENT AGAIN BECAUSE THE PROBLE…
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STARTING SINCE FEBRUARY 2010. MY CAR LUNGES FORWARD WHENEVER AT A DEAD STOP. WHEN SHIFTING TO DRIVE AND REVERSE. I HAVE HAD TO HAVE MY FOOT ON BRAKE AND EVEN ALMOST HAD AN ACCIDENT WHILE PARKING AND HIT THE WALL. WENT TO DEALERSHIP AND FIRST THEY SAID IT WAS MY ENGINE MOUNT THAT WAS CAUSING IT. THEN WENT AGAIN BECAUSE THE PROBLEM STILL OCCURRED AND THEY SAID I NEEDED A NEW BATTERY. THEN THEY CLAIMED IT WAS MY AIR FILTER WHICH IS A LIE. I CALLED THE FORD HEADQUARTERS AND ALL THEY CAN DO IS TAKE DOWN WHEN I CALLED AND WHAT IT WAS ABOUT. THEY ARE NO HELP WHAT SO EVER SO WHAT IS THE POINT OF THEM EVEN EXISTING IF THEY CANT HELP SOLVE THE PROBLEM. THEY CLAIM EACH DEALER IS INDEPENDENT AND THAT THEY CAN ADVISE THAT I GO TO A DIFFERENT DEALERSHIP. I HAVE WASTED A GOOD DEAL OF TIME AND MONEY. LUCKILY I WAS SMART AND BOUGHT THAT PREMIUM EXTENDED WARRANTY. I STILL HAVE SPENT CLOSE TO OVER $400 ON REPAIRS. EACH TIME I WENT I HAD TO PAY A DEDUCTIBLE OF $100.00. THE BATTERY I WENT TO SAMS CLUB TO GET BECAUSE THE DEALER WANTED $140 BUT I GOT MINE FOR $75. THEY ADVISED TO GET MY THROTTLE BODY CLEAN AND THAT WAS $95. THEY SAID I NEED TO HAVE MY TRANSMISSION FLUSHED WHICH IS ANOTHER LIE. I DIDN'T GET THAT DONE BECAUSE I ONLY HAVE 60,000 MILES ON THE VEHICLE. THE TRANSMISSION FLUID WAS AS RED AS CAN BE AND IS STILL GOOD FOR PROBABLY ANOTHER 40,000 MILES. THE POINT IS FORD KNOWS ABOUT THE PROBLEM AND THEY DO NOT WANT TO FIX THE PROBLEM IT APPARENTLY IS HAPPENING TO TONS OF FOLKS OUT THERE. THEY NEED TO JUST FIX IT BECAUSE EVEN THOUGH I HAD MY THROTTLE BODY CLEANED THE PROBLEM STILL COMES BACK HERE AND THERE. I JUST HOPE THAT NO ONE GETS KILLED AND THEN FORD WILL FINALLY GET THIS RIGHT. I PLAN ON SEEING IF I CAN GET SOME LEGAL HELP AND WILL EXPLORE THAT AVENUE BECAUSE I GET MY OIL CHANGES ALMOST EVER 3500 MILES AND I FOLLOW ALL THE MANUFACTURES SERVICE POLICIES. I DO MY PART AS A CUSTOMER AND THEY HAVEN'T DONE THERE PART AS THE COMPANY THAT MADE THE VEHICLE. *TR
NHTSA ODI #10373274
83,000 miles · Dec 20, 2010
Fuel System, GasolinePower Train
CAR SURGES FORWARD/BACKWARD WHEN ENGAGED IN GEAR FROM DEAD STOP AND BRAKE IS RELEASED WITHOUT HAVING EVEN TOUCHED THE ACCELERATOR. SEEMS TO BE WORSE WHEN HEATING/COOLING FAN IS ON, ESPECIALLY ON RECIRCULATE, AND RPMS WILL SURGE/RACE AT DEAD STOP WITH BRAKE FIRMLY APPLIED WHEN THE STEERING WHEEL IS TURNED TO EITHER SIDE. PROBLE…
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CAR SURGES FORWARD/BACKWARD WHEN ENGAGED IN GEAR FROM DEAD STOP AND BRAKE IS RELEASED WITHOUT HAVING EVEN TOUCHED THE ACCELERATOR. SEEMS TO BE WORSE WHEN HEATING/COOLING FAN IS ON, ESPECIALLY ON RECIRCULATE, AND RPMS WILL SURGE/RACE AT DEAD STOP WITH BRAKE FIRMLY APPLIED WHEN THE STEERING WHEEL IS TURNED TO EITHER SIDE. PROBLEM IS ESPECIALLY NOTICEABLE IN PARKING LOTS OR ANYWHERE IN LOW SPEED STOP/GO DRIVING CONDITIONS. CONCERNED FOR PEDESTRIAN SAFETY AS I HAVE HAD THE CAR JUMP UNEXPECTEDLY AND NEARLY HIT THEM. CHECK ENGINE LIGHT CAME ON A COUPLE OF WEEKS AGO AND CAR WENT INTO LIMP HOME MODE INDICATING ERROR CODES P061B & P2016 WHICH MEANS THE THROTTLE BODY NEEDS TO BE REPLACED AFTER DRIVING IN DEEP SNOW, EXTREMELY COLD TEMPERATURE AFTER CAR HAD BEEN SITTING FOR 3 DAYS, THE CHECK ENGINE LIGHT HAS CLEARED BUT THE CAR CONTINUES TO HAVE THE SURGING ISSUES THOUGH IT DOES SEEM WORSE IN WARMER WEATHER THAN COLD. SO FAR I HAVE NOT REPLACED THE THROTTLE BODY THOUGH I INTEND TO AS SOON AS I CAN GET AHOLD OF THE PART. *TR
NHTSA ODI #10371756
60,000 miles · Nov 28, 2010
Power Train
I HAVE A 2006 FORD FIVE HUNDRED AND THE PROBLEM IS WHEN I AM DRIVING AT A NORMAL SPEED AND HAVE TO SLOW DOWN AND THEN TAKE OFF THE CAR MAKE A STRONG BUCKING HIT, I TOOK IT TO THE DEALER TO HAVE IT CHECKED OUT AND THEY TOLD ME IT WAS A MOTOR MOUNT, THEY REPLACED THE MOUNT BUT THE CAR CONTINUED TO DO THE SAME THING, THE WARRANTY W…
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I HAVE A 2006 FORD FIVE HUNDRED AND THE PROBLEM IS WHEN I AM DRIVING AT A NORMAL SPEED AND HAVE TO SLOW DOWN AND THEN TAKE OFF THE CAR MAKE A STRONG BUCKING HIT, I TOOK IT TO THE DEALER TO HAVE IT CHECKED OUT AND THEY TOLD ME IT WAS A MOTOR MOUNT, THEY REPLACED THE MOUNT BUT THE CAR CONTINUED TO DO THE SAME THING, THE WARRANTY WAS JUST ABOUT TO RUN OUT WHEN I TOOK IT THE SECOND TIME AND THEY TOLD ME IT WAS THE THROTTLE BODY, WHEN THE CHECKED WITH THE WARRANTY THEY TOLD ME IT HAD EXPIRED. I HAD TOLD THEM THAT THIS WAS A FOLLOW UP FROM THE FIRST TIME I TOOK THE CAR IN BUT THEY SAID THEY COULD NOT DO ANYTHING, IN SEARCHING I FOUND OUT THAT FORD WAS AWARE THAT THE CVT TRANSMISSION HAD PROBLEMS AND THEY REFUSE TO ACCEPT IT, THEY NEED TO RECALL THESE CARS FIX THE PROBLEM THAT THEY HAVE CAUSED. THANK YOU FOR HEARING ME OUT. *TR
NHTSA ODI #10368013
52,500 miles · Nov 17, 2010
Power Train
2006 FORD FIVE HUNDRED LTD AWD, VEHICLE ACCELERATED TO 4000 RPM WHILE IN REVERSE. VEHICLE IN SHOP FOR THREE WEEKS WAITING FOR REPLACEMENT PART, THROTTLE BODY. DEALER STATED PART ON BACK ORDER AND HE HAD TWO OTHER VEHICLE IN AT SAME TIME WITH SAME DIAGNOSIS. *TR
NHTSA ODI #10366541
82,000 miles · Nov 9, 2010
Vehicle Speed Control
TL*THE CONTACT OWNS A 2006 FORD FIVE HUNDRED LIMITED. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 55 MPH, THE VEHICLE STALLED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER MULTIPLE ATTEMPTS. THE VEHICLE WAS TAKEN TO A LOCAL REPAIR SHOP WHERE THE CONTACT WAS INFORMED THAT THE THROTTLE BOX WAS THE CAUSE FOR FAILURE. T…
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TL*THE CONTACT OWNS A 2006 FORD FIVE HUNDRED LIMITED. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 55 MPH, THE VEHICLE STALLED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER MULTIPLE ATTEMPTS. THE VEHICLE WAS TAKEN TO A LOCAL REPAIR SHOP WHERE THE CONTACT WAS INFORMED THAT THE THROTTLE BOX WAS THE CAUSE FOR FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 82,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10365132
NHTSA investigations
1PE11018 · Idle Instability
Opened May 11, 2011 · Closed Feb 7, 2013
Status: closed (inferred from source dates) · Vehicle Speed Control
On November 29, 2012, Ford Motor Company (Ford) initiated Customer Satisfaction Program 12N03 to extend warranty coverage terms for repair of engine idle RPM surge caused by throttle body deposits in all model year (MY) 2005 through 2007 Ford Freestyle, Five Hundred and Mercury Montego vehicles.The program extends the coverage for up to 10 years of service or 150,000 miles from the warranty start date of the vehicle (all vehicles are eligible for the program through May 31, 2013, regardless of mileage).Dealers will repair vehicles exhibiting the condition by removing and cleaning the throttle body and reprogramming the PCM with software containing an updated idle speed control strategy.According to Ford, some of the affected vehicles may experience momentary, intermittent engine idle RPM surge (idle flare) when stopped or during low speed driving maneuvers such as in a parking lot or driveway.Unstable idle speed control (dips and flares) around the target engine speed (700 rpm) can occur in vehicles with deposit build-up in the throttle body when the system adjusts engine speed in response to changes in engine load, typically from power steering application or air-conditioner compressor cycling.Idle speed control logic is only active at vehicle speeds below 3.5 mph and when the accelerator pedal is not applied.Ford testing of a vehicle with a worst case throttle body measured a maximum idle flare of 1360 RPM lasting approximately 1 second, which Ford indicated was consistent with system design to limit vehicle speed and acceleration in idle control mode.Ford indicated that the test vehicle was held in place with normal brake effort and that vehicle speed remained under 4 mph without the brake pedal applied.In addition to throttle body deposit accumulation, symptoms associated with the condition may include Check Engine lamp illumination and diagnostic trouble codes (DTCs) P0505, P0506 or P061B.Ford attributed the surge condition to changes in idle air flow resulting from the progressive buildup of deposits in the throttle body from normal Positive Crankcase Ventilation (PCV) system operation.This condition was not adequately compensated for in the original Powertrain Control Module (PCM) calibration.Ford issued a technical service bulletin on August 15, 2011 (TSB 11-8-5), releasing an updated powertrain control calibration for vehicles with CVT transmissions.On October 19, 2011, Ford issued a second bulletin (TSB 11-10-21) superseding TSB 11-8-5 and including updated powertrain control calibration for vehicles with 6-speed transmissions.Prior to Ford issuing the TSB?s, owner?s experiencing the alleged defect either received no repairs, if dealers could not duplicate the condition, or had the throttle body cleaned or replaced, which only provided temporary correction until the throttle deposit build-up returned.Ford?s revised powertrain calibrations appear to be effective remedies for the idle instability caused by build-up of throttle body deposits.However, even after the TSB?s were released, many owners experiencing the condition continued to have difficulty with proper diagnosis and repair as dealers were often either unable to duplicate the condition or were unfamiliar with the new repair procedures.Ford's new program addresses those concerns.NHTSA's testing and complaint analysis indicate that the idle speed control issue in the subject vehicles can only occur at very low speeds, are very brief events, are easily controlled by moderate brake pedal forces and result in minor increases in vehicle speed even with no braking.This investigation is closed.The closing of this in