FUEL GAUGE READING DROPS SUDDENLY FROM 1/4 TANK TO EMPTY IN A MATTER OF SECONDS, NOT ALLOWING TIME TO GET OUT OF TRAFFIC. HAPPENED NUMEROUS TIMES BUT SO FAR ONLY WHEN THE VEHICLE HAS BEEN IN A POSITION TO PULL OFF THE ROAD (ON SINGLE LANE ROADWAY, OR IN THE RIGHT HAND LANE. HAS BEED AT HIGHWAY SPEEDS, AND ON RESIDENTIAL AREA.
2009 Ford Flex
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2009 Ford Flex do not stand out strongly from the model-year median of 139.
About this comparison →How this year compares
Owner complaints by model year
Compare all Flex years →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
150 reports with mileage · 31 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.
- Engine. Review the 36 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 32 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Fuel/propulsion System complaints
15 reportsTHE FUEL GAUGE WILL READ BETWEEN 1/2 AND 1/4 TANK THEN IMMEDIATELY MAKE A *DING* AND THE DISPLAY READS 0 MILES. THE FUEL GAUGE WILL DROP TO EMPTY. IF YOU DRIVE ANYTHING FURTHER THAN A SHORT DISTANCE (10 MILES OR SO) THE CAR WILL DIE. IT IS "OUT" OF FUEL. REFILLING THE TANK YOU WILL FIND THAT THE VEHICLE STILL HAS WHATEVER FUEL T…
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THE FUEL GAUGE WILL READ BETWEEN 1/2 AND 1/4 TANK THEN IMMEDIATELY MAKE A *DING* AND THE DISPLAY READS 0 MILES. THE FUEL GAUGE WILL DROP TO EMPTY. IF YOU DRIVE ANYTHING FURTHER THAN A SHORT DISTANCE (10 MILES OR SO) THE CAR WILL DIE. IT IS "OUT" OF FUEL. REFILLING THE TANK YOU WILL FIND THAT THE VEHICLE STILL HAS WHATEVER FUEL THE GAUGE WAS SHOWING BEFORE IT DROPPED TO ZERO. IT IS CONSISTENT, IT DOES THIS EVERY TANK. APPEARS TO BE GETTING WORSE AS TIME GOES ON.
AS HAS BEEN REPORTED MANY TIME ON HERE AND IN THE FLEX FORUMS, THE VEHICLE WILL SUDDENLY STALL AT A 1/4 TANK OF GAS FOR NO REASON. I WAS TRAVELING DOWN THE INTERSTATE AT HIGH WAY SPEED WHEN THE FUEL GAUGE DROPPED TO E AND THE MILES TO EMPTY READ 0. THIS HAS HAPPENED THREE TIMES. I CALLED ONE OF MY LOCAL DEALERS WHO INSISTED THEY…
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AS HAS BEEN REPORTED MANY TIME ON HERE AND IN THE FLEX FORUMS, THE VEHICLE WILL SUDDENLY STALL AT A 1/4 TANK OF GAS FOR NO REASON. I WAS TRAVELING DOWN THE INTERSTATE AT HIGH WAY SPEED WHEN THE FUEL GAUGE DROPPED TO E AND THE MILES TO EMPTY READ 0. THIS HAS HAPPENED THREE TIMES. I CALLED ONE OF MY LOCAL DEALERS WHO INSISTED THEY HAVE NEVER HEARD OF THIS PROBLEM AND NOTHING WAS DONE. THERE ADVICE WAS TO NOT LET THE CAR GET TO A 1/4 OF A TANK. THEY HAVE NO FIX FOR THIS DANGEROUS PROBLEM.
DRIVING ON HIGHWAY AND HAD 1/4 TANK OF FUEL LEFT WHEN LOW FUEL WARNING BEEP SOUNDED. FUEL GAUGE WAS SUDDENLY AT "E" AND DISPLAY SAID 0 MILES UNTIL EMPTY. IMMEDIATELY PULLED INTO A GAS STATION. GAS PUMP SHUT OFF AFTER FILLING ONLY 14.5 GALLONS, ALTHOUGH TANK CAPACITY IS 18.6 GALLONS.
THE CAR WILL CUT OFF AND THINK ITS OUT OF GAS. WHEN MY CAR HAS 1/8 IT GOES FROM 50 MILES TO 0. THEN RUNS OUT OF GAS. IF I FILL UP IT WILL SAY 322 TIP EMPTY BUT ONLY GETTING 225 OUT OF FILL TANK OF GAS. I BEEN HAVING THE ISSUE SINCE I PURCHASED CAR IN 2011. THE FUEL PUMP SENDING UNIT HAS TO BE REPLACED WITH JET PUMP.
VEHICLE DOES NOT RECOGNIZE LAST QUARTER TANK OF FUEL. ONCE IT REACHES APPROXIMATELY A QUARTER TANK LEFT, THE FUEL GAUGE AND MILES TO EMPTY DISPLAY DROP SUDDENLY TO EMPTY AND THE CAR SHUTS OFF. WHEN REFUELING AFTER IT SHOWS EMPTY, IT ONLY ACCEPTS ABOUT 3/4 TANK. THE FUEL IS THERE, BUT INACCESSIBLE. THIS IS A MAJOR SAFETY ISSUE AS…
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VEHICLE DOES NOT RECOGNIZE LAST QUARTER TANK OF FUEL. ONCE IT REACHES APPROXIMATELY A QUARTER TANK LEFT, THE FUEL GAUGE AND MILES TO EMPTY DISPLAY DROP SUDDENLY TO EMPTY AND THE CAR SHUTS OFF. WHEN REFUELING AFTER IT SHOWS EMPTY, IT ONLY ACCEPTS ABOUT 3/4 TANK. THE FUEL IS THERE, BUT INACCESSIBLE. THIS IS A MAJOR SAFETY ISSUE AS THE CAR DIES VERY SUDDENLY WHEN THE SYSTEM DECIDES THERE'S NO FUEL LEFT. IT HAS HAPPENED ON THE INTERSTATE, OTHER HIGHWAYS, AND ON A RURAL ROAD WHERE FINDING ENOUGH FUEL TO GET GOING AGAIN WAS A BIG PROBLEM. DEALERSHIP REPLACED FUEL SENSORS, BUT SAID THERE WAS NO CODE SHOWING WHILE THE CAR WAS STILL UNDER WARRANTY. NOW I'M STUCK RANDOMLY REPLACING FUEL SYSTEM PIECES IN HOPES OF FIGURING OUT WHICH PIECE IS BROKEN. EACH TIME I SPEND HUNDREDS OF DOLLARS TO "FIX" IT, THE PROBLEM REPEATS AS SOON AS I GET THROUGH MOST OF THE FIRST TANK OF FUEL. POSITION OF VEHICLE DOESN'T MATTER. UPHILL, DOWNHILL, ETC, IT ALWAYS HAPPENS CLOSE TO A QUARTER TANK OF FUEL LEFT.
ENGINE STALLS DESPITE FUEL GAUGE READING 1/4 TANK IN RESERVE. FILL UP CONFIRMS THAT THERE IS IN FACT 1/4 TANK LEFT. HAS HAPPENED SEVERAL TIMES NOW.
TRAVELING AT 70MPH THE FUEL GAUGE INDICATED SLIGHTLY OVER 1/4 OF A TANK LEFT AND THE ESTIMATED MILES TO EMPTY WITH THE MILEAGE-TO-EMPTY ESTIMATE INDICATING APPROXIMATELY 70 MILES LEFT. THEN IN UNDER TWO MINUTES TO WHEN I CHECKED THE DASH AGAIN, THE GAUGE HAD DROPPED TO ZERO WITH THE ESTIMATOR SHOWING 0 AS WELL. WITHIN THE NEXT M…
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TRAVELING AT 70MPH THE FUEL GAUGE INDICATED SLIGHTLY OVER 1/4 OF A TANK LEFT AND THE ESTIMATED MILES TO EMPTY WITH THE MILEAGE-TO-EMPTY ESTIMATE INDICATING APPROXIMATELY 70 MILES LEFT. THEN IN UNDER TWO MINUTES TO WHEN I CHECKED THE DASH AGAIN, THE GAUGE HAD DROPPED TO ZERO WITH THE ESTIMATOR SHOWING 0 AS WELL. WITHIN THE NEXT MILE THE ENGINE RAN OUT OF FUEL. TO FILL UP THE 18.6 GALLON FUEL TANK IT ONLY TOOK APPROXIMATELY 14 GALLONS AT THE PUMP. THIS INDICATES THAT APPROXIMATELY 4.6 GALLONS OF FUEL WERE STILL REMAINING IN THE TANK. SINCE THIS MODEL USES A FUEL TANK DESIGN WITH TWO SUMPS THE FUEL ISN'T TRANSFERRING FROM THE ONE SIDE TO THE OTHER WHERE THE FUEL PUMP IS LOCATED. THIS CAN CAUSE DANGEROUS DRIVING CONDITIONS FOR SOMEONE EXPECTING TO HAVE ONE QUARTER OF THEIR FUEL TANK LEFT.
TRAVELING AT 70MPH. URGE FUEL GAUGE INDICATED SLIGHTLY OVER 1/4 OF A TANK LEFT AND THE ESTIMATED MILES TO EMPTY WITH THE MILEAGE-TO-EMPTY ESTIMATE INDICATING APPROXIMATELY 100 MILES LEFT. THEN IN UNDER TWO MINUTES TO WHEN I CHECKED THE DASH AGAIN, THE GAUGE HAD DROPPED TO ZERO WITH THE ESTIMATOR SHOWING 0 AS WELL. WITHIN THE NEX…
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TRAVELING AT 70MPH. URGE FUEL GAUGE INDICATED SLIGHTLY OVER 1/4 OF A TANK LEFT AND THE ESTIMATED MILES TO EMPTY WITH THE MILEAGE-TO-EMPTY ESTIMATE INDICATING APPROXIMATELY 100 MILES LEFT. THEN IN UNDER TWO MINUTES TO WHEN I CHECKED THE DASH AGAIN, THE GAUGE HAD DROPPED TO ZERO WITH THE ESTIMATOR SHOWING 0 AS WELL. WITHIN THE NEXT MILE THE ENGINE RAN OUT OF FUEL. TO FILL UP THE 18.6 GALLON FUEL TANK ONLY TOOK 2.5 GALLONS FROM THE JUG AND ANOTHER 11.5 GALLONS AT THE PUMP FOR A TOTAL OF 14 GALLONS. THIS INDICATES THAT APPROXIMATELY 4.6 GALLONS OF FUEL WERE STILL REMAINING IN THE TANK. SINCE THIS MODEL USES A FUEL TANK DESIGN WITH TWO SUMPS THE FUEL ISN'T TRANSFERRING FROM THE ONE SIDE TO THE OTHER WHERE THE FUEL PUMP IS LOCATED. THIS CAN CAUSE DANGEROUS DRIVING CONDITIONS FOR SOMEONE EXPECTING TO HAVE ONE QUARTER OF THEIR FUEL TANK LEFT.
GAS GAUGE WILL READ BETWEEN 14 TO 1/2 TANK OF FUEL THEN WITHOUT WARNING DROPS TO E AND CAR DIES. FAULTY FUEL SENSOR OR PUMP DUE TO SADDLEBAG TANK DESIGN. ALSO NO CUTOUT IN FLOORBOARD TO ACCESS THE SECONDARY SENSOR OR PUMP. THERE IS STILL ABOUT 4 OR 5 GALLONS OF FUEL IN THE TANK BUT THE CAR THINKS IT IS EMPTY. *TR
Official recalls
116V247000 · Air Bags:frontal
Apr 26, 2016
Ford Motor Company (Ford) is recalling certain model year 2009-2012 Ford Flex, 2008 and 2010-2012 Ford Taurus, 2008-2009 Ford Taurus X, 2008 Mercury Sable, 2009 and 2011 Lincoln MKS vehicles. The driver frontal air bag may improperly inflate during second-stage deployment in the event of a high speed crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: An improperly inflated air bag increases the risk of injury in the event of a crash.
Remedy: Ford will notify owners, and dealers will inspect and replace the driver's frontal air bag module, as necessary, free of charge. The recall is expected to begin on June 13, 2016. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16C06.
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
0No exact-year investigations in this snapshot.
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