2011 Ford Flex power train problems
19 owner complaints filed with NHTSA name the power train on the 2011 Ford Flex — 13% of all complaints for this model year.
What owners report
“Went to put car in reverse and it kept driving forward- no weird sound or anything. Proceeded to put the car in park and it was still moving forward. Transmission was stuck on drive.The shifter is disconnected from the transmission with no warning .Just looked and the transmission shifter bushing…”
filed Apr 28, 2026
“My brakes locked up suddenly on the rear end causing me to get stuck in the middle of the road and unable to move it, even to tow it. I had to take 2 days almost to fix it in the middle of the road, since yesterday morning. They also began locking up suddenly on the front end, the wheel bearing, CV…”
filed Oct 18, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
On vehicles equipped with an automatic transmission it is imperative that the converter pilot hub be greased with Motorcraft Multi-Purpose Grease Spray XL-5-A even if grease was not applied from the factory. Also verify…
SSM 47976 · Service Bulletin/Repair Instructions · issued May 10, 2019
Power Train problems in other Flex years
| Year | Reports | Share |
|---|---|---|
| 2019 Flex | 2 | 1% |
| 2018 Flex | 2 | 3% |
| 2017 Flex | 2 | 5% |
| 2016 Flex | 8 | 9% |
| 2015 Flex | 11 | 11% |
| 2014 Flex | 10 | 4% |
| 2013 Flex | 11 | 2% |
| 2012 Flex | 4 | 6% |
| 2010 Flex | 12 | 9% |
| 2009 Flex | 23 | 13% |
Other reported problem areas on the 2011 Ford Flex
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.