NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
364 reports70,000 miles · Mar 12, 2012
Vehicle Speed Control
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE THE VEHICLE WAS PARKED, THE VEHICLE ACCELERATED UNEXPECTEDLY WHEN SHIFTED INTO REVERSE OR DRIVE. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED AND THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 70…
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TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE THE VEHICLE WAS PARKED, THE VEHICLE ACCELERATED UNEXPECTEDLY WHEN SHIFTED INTO REVERSE OR DRIVE. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED AND THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 70,000 AND THE CURRENT MILEAGE WAS 87,000.
NHTSA ODI #10451302
Mileage unknown · Mar 5, 2012
Power Train
I TOO HAVE A 2006 FORD FIVE HUNDRED THAT WILL LUNGE FORWARD AT ODD TIMES ESPECIALLY WHEN THE A/C IS ON. IN FACT, I WON'T EVEN USE THE A/C ANYMORE BECAUSE OF MY FORD FIVE HUNDRED LUNGING FORWARD. IT IS A MAJOR PROBLEM AND I BELIEVE SHOULD HAVE BEEN RECALLED A LONG TIME AGO. I BOUGHT MY FORD FIVE HUNDRED IN JAN 2006 AND IT HAS …
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I TOO HAVE A 2006 FORD FIVE HUNDRED THAT WILL LUNGE FORWARD AT ODD TIMES ESPECIALLY WHEN THE A/C IS ON. IN FACT, I WON'T EVEN USE THE A/C ANYMORE BECAUSE OF MY FORD FIVE HUNDRED LUNGING FORWARD. IT IS A MAJOR PROBLEM AND I BELIEVE SHOULD HAVE BEEN RECALLED A LONG TIME AGO. I BOUGHT MY FORD FIVE HUNDRED IN JAN 2006 AND IT HAS BEEN DOING IT EVER SINCE. IT WILL JUST LUNGE FORWARD EVEN WHEN BRAKING OR STOPPED. WHAT A PAIN. I AM AMAZED I HAVEN'T REAR ENDED SOMEONE. PLEASE RECALL THIS FORD! *TR
NHTSA ODI #10450307
171,064 miles · Feb 22, 2012
Engine And Engine CoolingPower Train
THE VEHICLE WILL STALL AND JERK. THE VEHICLE WILL LUNGE OUT EVEN WHEN THE BRAKE IS PRESSED. IT HAS DONE THIS IN PARKING LOTS AND WHILE DRIVING. THIS IS DANGEROUS AS IT ALMOST CAUSED AN ACCIDENT BY JERKING BACKWARD IMMEDIATELY WHEN I SHIFTED TO REVERSE WHEN I WAS IN THE PARKING LOT- MY FOOT WAS ON THE BRAKE AND THE CAR STILL EXCE…
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THE VEHICLE WILL STALL AND JERK. THE VEHICLE WILL LUNGE OUT EVEN WHEN THE BRAKE IS PRESSED. IT HAS DONE THIS IN PARKING LOTS AND WHILE DRIVING. THIS IS DANGEROUS AS IT ALMOST CAUSED AN ACCIDENT BY JERKING BACKWARD IMMEDIATELY WHEN I SHIFTED TO REVERSE WHEN I WAS IN THE PARKING LOT- MY FOOT WAS ON THE BRAKE AND THE CAR STILL EXCELLED. *TR
NHTSA ODI #10448877
107,000 miles · Feb 17, 2012
Vehicle Speed Control
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THE VEHICLE WOULD ABNORMALLY ACCELERATE WITHOUT WARNING AND OFTEN TIMES, WHEN THE BRAKE WAS APPLIED. IN ADDITION, THE VEHICLE WOULD STALL INTERMITTENTLY AND FAIL TO START. THE DEALER ADVISED THE CONTACT THAT THE THROTTLE BODY NEEDED TO BE REPLACED. THE MANUFAC…
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TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THE VEHICLE WOULD ABNORMALLY ACCELERATE WITHOUT WARNING AND OFTEN TIMES, WHEN THE BRAKE WAS APPLIED. IN ADDITION, THE VEHICLE WOULD STALL INTERMITTENTLY AND FAIL TO START. THE DEALER ADVISED THE CONTACT THAT THE THROTTLE BODY NEEDED TO BE REPLACED. THE MANUFACTURER HAD NOT BEEN NOTIFIED OF THE FAILURE. NO REPAIRS WERE PERFORMED. THE CURRENT MILEAGE WAS 109,000 AND THE FAILURE MILEAGE WAS 107,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10448339
156,255 miles · Feb 15, 2012
Electrical System
INSTRUMENT PANEL IDIOT LIGHTS CAME ON AND THE SPEEDO,RPM AND ODOMETER WENT TO ZERO ALSO TRACTION CONTROL SHUT OFF. HAPPENED WHEN I STARTED THE CAR. INTERMITTENTLY THE DASH WENT TO NORMAL AND THEN OUT AGAIN A FEW TIMES. *TR
NHTSA ODI #10448031
64,000 miles · Feb 2, 2012
Power Train
I DROVE OUT OF MY DRIVEWAY AND IMMEDIATELY LOST THE ABILITY TO ACCELERATE. I TRIED TO REV THE ENGINE BUT THERE WAS NO RESPONSE FROM THE ENGINE. MY CAR JUST SAT THERE IN THE MIDDLE OF THE STREET LIKE A DEAD DUCK. I WAS GRATEFUL I WAS NOT ON THE FREEWAY OR IN THE MIDDLE OF AN INTERSECTION! THE NEXT TIME SOMETHING HAPPENED THE C…
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I DROVE OUT OF MY DRIVEWAY AND IMMEDIATELY LOST THE ABILITY TO ACCELERATE. I TRIED TO REV THE ENGINE BUT THERE WAS NO RESPONSE FROM THE ENGINE. MY CAR JUST SAT THERE IN THE MIDDLE OF THE STREET LIKE A DEAD DUCK. I WAS GRATEFUL I WAS NOT ON THE FREEWAY OR IN THE MIDDLE OF AN INTERSECTION! THE NEXT TIME SOMETHING HAPPENED THE CAR WAS BEING DRIVEN UP THE DRIVEWAY AND WHILE CLIMBING UP THE DRIVEWAY THE ACCELERATOR WAS UNRESPONSIVE AND THE CAR STARTED ROLLING BACKWARDS WHILE IT WAS IN DRIVE. *TR
NHTSA ODI #10446529
88,000 miles · Jan 30, 2012
Unknown Or Other
I HAD THE CAR IN THE SHOP THREE TIMES PRIOR TO THE EXTENDED WARRANTY EXPIRING. ALL THREE TIMES THEY SAID THAT THEY COULD NOT FIND THE PROBLEM (WHICH EVENTUALLY WAS THE THROTTLE BODY ASSEMBLY). THREE DAYS AGO, ON THE FREEWAY, THE CAR WAS "LUNGING FORWARD" GOING BETWEEN A COMPLETE STOP TO 15 MPH IN STOP AND GO TRAFFIC. THE CAR DIE…
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I HAD THE CAR IN THE SHOP THREE TIMES PRIOR TO THE EXTENDED WARRANTY EXPIRING. ALL THREE TIMES THEY SAID THAT THEY COULD NOT FIND THE PROBLEM (WHICH EVENTUALLY WAS THE THROTTLE BODY ASSEMBLY). THREE DAYS AGO, ON THE FREEWAY, THE CAR WAS "LUNGING FORWARD" GOING BETWEEN A COMPLETE STOP TO 15 MPH IN STOP AND GO TRAFFIC. THE CAR DIED ON ME AND I NEEDED TO PUSH IT OFF THE FREEWAY. EVENTUALLY THE CAR RESTARTED AND I DROVE IT TO THE NEAREST REPAIR YARD. *TT
NHTSA ODI #10445934
95,000 miles · Jan 28, 2012
Power Train
TRANSMISSION FAILURE, SUDDEN LOSS OF POWER. IF YOU LET THE VEHICLE SET OR TURN THE VEHICLE OFF, SOMETIMES YOU CAN REGAIN SOME POWER TO MOVE FORWARD BUT WHEN YOU SLOW DOWN AND THEN TRY TO INCREASE YOUR SPEED THE VEHICLE WILL COME TO A COMPLETE STOP. *TR
NHTSA ODI #10445692
23,800 miles · Jan 25, 2012
Vehicle Speed ControlCrash
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE EXITING A RESIDENTIAL DRIVEWAY, THE VEHICLE SUDDENLY ACCELERATED WITHOUT ANY WARNING. THE CONTACT MENTIONED THAT AS A RESULT OF THE FAILURE, THE VEHICLE CRASHED THROUGH A WALL AND INTO AN APARTMENT. A POLICE REPORT WAS FILED AND NO INJURIES WERE REPORTE…
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TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE EXITING A RESIDENTIAL DRIVEWAY, THE VEHICLE SUDDENLY ACCELERATED WITHOUT ANY WARNING. THE CONTACT MENTIONED THAT AS A RESULT OF THE FAILURE, THE VEHICLE CRASHED THROUGH A WALL AND INTO AN APARTMENT. A POLICE REPORT WAS FILED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS TOWED TO THE DEALER WHO WAS NOT ABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS DESTROYED. THE FAILURE AND THE CURRENT MILEAGE WAS 23,800.
NHTSA ODI #10445210
68,780 miles · Jan 20, 2012
Engine And Engine Cooling
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING WHILE DRIVING 30 MPH. THE CONTACT DID NOT TAKE THE VEHICLE TO A DEALER OR LOCAL MECHANIC FOR DIAGNOSIS OR REPAIRS. THE FAILURE MILEAGE WAS 68,780.
NHTSA ODI #10444693
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
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