Skip to content
Transmission and drivetrainPart report

2015 Ford Flex Transmission and drivetrain Problems

Complaints
11about this part
Share
9%of 116 total for the year
Median mileage
12,763miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 11 complaints about the transmission and drivetrain of the 2015 Ford Flex, 9% of the 116 complaints for this model year. Where a mileage was given, the median is 12,763 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“When vehicle in motion on major roadway, loss of power and goes into limp mode. Yellow wrench lights up. Vehicle does not respond to throttle. I have to shut off vehicle and turn it back on . There is no DTC code when checked. I was almost rear ended with my children in the vehicle at time of incident. Car loses power and rapidly decelerates within 5 seconds. There is zero time to pull off the road which put us at high risk of being rear ended. This is a life/road safety hazard”

NHTSA complaint #11365127, filed 2020-10, 55,000 miles

“July 1 I was driving the car running some errands (bank, post office, grocery store) when the car suddenly lost power turning across oncoming traffic on a four lane highway. This was one day after I had the car at the dealership for more diagnostic work and they could not find anything wrong without the code. I left the car running after making it home and called Ford roadside assistance for a tow to the dealership. …”

NHTSA complaint #10882744, filed 2016-07, 12,763 miles

“Purchased my 2015 Ford FLEX on may 11, 2016 with 54 miles. On saturday, july 2, 2016 the wrench light came on while driving and the car shut-down. I was able to get it started and drove home, which was less than 5 miles away. The code per the manual, powertrain failure. Engine light was on as well. I noticed it would move a little sluggish when going up a hill and also noticed the sound of the transmission taking a few seconds to switch gears. …”

NHTSA complaint #10882770, filed 2016-07, 6,000 miles

“I was driving northbound on us 23 on 6/10/2017 when my vehicle suddenly decelerated and would not respond to gas pedal. I coasted to the side of the road fortunately without striking another vehicle or the vehicle behind me rear ending me. A orange wrench appeared on the digital screen in my instrument cluster and a message appeared that said see manual. Manual stated this was a power-train failure. I turned car off and restarted and was able to drive on. Once restarted, the wrench symbol disappeared. …”

NHTSA complaint #10994541, filed 2017-06, 22,950 miles

“Wife was driving the car 6-21-16 at approximately 55 MPH when suddenly and unexpectedly the car lost power. She was able to get the car off the road without incident but could have been rear ended. Drivetrain malfunction/reduced power icon was displayed on instrument panel. Car was towed to nearest Ford dealership but no problem was found. I picked the cat up and drove it until the morning of 6-26-16 and the same thing happened to me. I got off the road, put the car in park, turned the switch off and pulled the key out. …”

NHTSA complaint #10876758, filed 2016-06, 12,440 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
201931%
201823%
201725%
201688%
2015119%
2014104%
2013112%
201246%
20111913%
2010129%
20092313%

Other parts of the 2015 Ford Flex

Back-over prevention (rear camera)
34 complaintsSteering
19 complaintsFuel system
18 complaintsElectrical system
13 complaintsOther or unknown
13 complaintsEngine
11 complaintsSuspension
7 complaintsVehicle speed control
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsElectronic stability control
1 complaintsSeat belts
1 complaintsSeats
1 complaints

← All problems reported for the 2015 Ford Flex

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology