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fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
19,449 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2010 Ford Flex engine problems

engine problem

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2010 Ford Flex Owner Comments

problem #8

Jul 012014


  • miles


2010 Ford Flex. Consumer writes in regards to vehicle throttle problems. The consumer stated the vehicle would accelerate on its own, which then caused the vehicle to go into safe mode. The vehicle immediately slowed down and would not go above 10 mph or it shut off completely. Ford informed the consumer, the fix would cost $550.

- Springfield, MO, USA

problem #7

Dec 292013

Flex 6-cyl

  • 92,504 miles
Was pulling into gas station today and breaking at pump when car suddenly accelerated. I applied break hard, tires spun until I shifted into neutral. I then shifted into park and turned off vehicle. Rpms had shot up, did not look down but could hear engine revving. Would have hit someone if I had not been at the gas pump. Will take vehicle to dealer asap for inspection. This S the third time this has occurred in last 2 weeks.

- Valparaiso, IN, USA

problem #6

Nov 132013

Flex 6-cyl

  • miles
2010 Ford Flex. Consumer writes in regards to vehicle sudden acceleration. The consumer stated about two weeks ago, while stopped at a red light, the vehicle suddenly lurched forward. He was able to brake the vehicle, so it traveled only about 5 to 10 feet. Last week, the same scenario occurred again. The vehicle was taken to the dealer. A diagnosis revealed there was a problem with the electronics, and the accelerator unit was replaced.

- New Port Richey, FL, USA

problem #5

Mar 052013

Flex 6-cyl

  • 11,000 miles


When stopping I would feel the car resisting stopping. I thought that the accelerator pedal was sticking. I then realized I was stepping on both the brake and accelerator pedals at the same time with the same foot. The harder I pressed the brake the harder I was pressing the accelerator. This has happened several times before. There is not enough separation between the pedals. There are similar reports from Flex owners on the internet.

- Brooklyn, NY, USA

problem #4

May 012012

Flex 6-cyl

  • 26,000 miles
While driving 30 mph the car simply dies. All lights come on and the car just shuts off. Left with no brakes, steering, or control. Dealer brought in engineer, after a week with the car dealer cannot replicate problem. Ford Motor Company decides nothing is wrong and force me to take dangerous car back. Incident occurred twice in the month of April/May.

- Sherborn, MA, USA

problem #3

May 022011

Flex 6-cyl

  • 20,000 miles
2010 Ford Flex 20000 miles. While driving @40miles per hour, check engine light came on and car stalled. Gas accelerator was inoperable. Operator was barely able to drive into a side of the road and bring car to a complete stop without any incident. The check engine light disappeared. This is the 1st occurrence, the vehicle was able to be started back up. Therefore, vehicle was taken to the dealership warrenton va on 05//03/11 also had incident with throttle body causing to car to lurch forward and accelerate erratically replaced by dealership approx February 2011 and have had one additional occurrence since replacement of throttlebody.

- Gainesville, VA, USA

problem #2

Jun 092010


  • 2,990 miles
2010 Ford Flex 2000 miles. While driving @ 35 miles per hour, check engine light came on and car stalled. Gas accelerator was inoperable. Operator was able to drive into a parking lot close by and bring car to a complete stop without any incident. Car turned on after the 5th attempt. The check engine light disappeared. The 1st occurrence, the vehicle was able to be started right away. This 2nd occurrence it took awhile. Therefore, vehicle was taken to the dealership ( North park Lincoln Ford in san antonio, tx )on 06/09/10 and obd came back with no diagnostic codes. Dealership stated that Ford engineer was on property and could not find the solution to the problem.. car is still at the dealership and they have no idea what to do.

- San Antonio, TX, USA

problem #1

May 112010


  • 3,100 miles
The contact owns a 2010 Ford Flex. While driving at 35 mph, the vehicle began to lose power and stalled. The contact was able to move the vehicle off the roadway and restart the engine. The vehicle was towed to the dealer where the dealer found the throttle body had become defective. The throttle was repaired accordingly and the vehicle was left with the dealer for further diagnosis of any additional failures. The failure and current mileages were 3,100.

- Bridgewater, NJ, USA

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