2013 t&c touring L head rest will not fold down in second row seat allowing me to use stow and go

Question edited to add maker.
Question moved from Spanish car company Seat, pronounced 'See-At'

Latch problems are know on this model

https://www.youtube.com/watch?v=Q2cDcrfW2b8

Make sure that the arm rests are in the up position and the headrest floded down. Check to be sure that there is not an obstruction in the folding compartment. Possible floor damage. Is the front seat in the most forward position?

Rear Seat Switches
There are three push button switches that are used to operate the power folding seat; front stow switch, rear stow switch, and recline switch. The front stow switch is located in the right rear quarter trim panel just behind the second row seat. The rear stow and recline switches are located in the right rear trim panel just inside the liftgate. Battery positive voltage is supplied at all times to all three switches from the FFS SW Fuse located in the left rear fuse block. The folding seat will operate only in a supervised mode, i.e. press and hold the selected switch button through the entire cycle of operation, or release the switch when the desired seat position is reached. When any folding seat switch is pressed, it sends a 12 volt signal through the switch signal circuit to the RSM. The RSM then commands the appropriate seat motors to move in response to the switch signal.
Rear Seat Module and Power and Ground
The rear seat module controls the position of the third row seat. When commanded it moves the seat from the seated position to the stowed position, or, from the stowed position to the seated position. With the seat in the seated position, the RSM can also move the angle of the seat back forward or rearward.
Battery positive voltage is supplied at all times to the module through the battery positive voltage circuit and the FFSM fuse located in the left rear fuse block. This voltage is used to power up the RSM and also to apply power to the seat motors when commanded. The RSM is grounded through the module ground circuit and G401.
The first place to start would be check the fuse's .Do you know where the left rear fuse block is located ? Fuse Block - Left Rear
In the passenger compartment, near the left side of the rear seat under the carpet
If the fuse is good next thing to do would be ,have check for DTC'S in the rear seat module ! This has nothing to do with check engine light or OBD 2 diagnostic trouble codes an a code reader for said OBD2 codes will not work . Would need a factory scan tool to check these codes.
DTC B1395
Battery positive voltage is supplied at all times to the rear seat load floor switch and the rear seat position switch by the rear seat module (RSM). The RSM monitors these battery positive voltage supply circuits for the protection of internal circuitry of the module.
DTC B1395 Device Voltage Reference Output 1 Circuit
DTC B1420 Device Voltage
Battery positive voltage is supplied at all times to the seat adjuster switch and the memory seat module (MSM) through the same circuit. The MSM uses this battery voltage input to determine if battery positive voltage is applied to the seat adjuster switch.
DTC B1545 Seat Stow Switch 1 Circuit

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DTC B1546, Seat Stow Switch 2 Circuit

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DTC B3729 Seat Recline Control Switch

DTC B1735 Seat Front Up Switch Circuit

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DTC B1740 Seat Front Down Switch Circuit

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DTC B1745 Seat Rear Up Switch Circuit

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DTC B1750 Seat Rear Down Switch Circuit

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DTC B1755 Seat Assembly Horizontal Forward Switch Circuit

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DTC B1760 Seat Assembly Horizontal Rearward Switch Circuit

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DTC B1815 Seat Recline Forward Switch Circuit

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DTC B1820 Seat Recline Rearward Switch Circuit

Just from looking at the factory service info , I'd say you would be bet off just taking this to the dealer !
The first plase

sounds like a cable has broke in the back of the seat or a a metal rod had come adrift or broke ,ask a local mechanic to have a look for you .

slide back the whole seat then pull the loop by the head rest to fold it down then use the handle on the side towards top of the back rest to fold hope this helps

You will need to take the seat apart to determine what is not fastened to release it.

should be under warrenty take it to the dealer

I have a dealer with some traditional values.Rang up to ask about booking in - could always cancel if fixed - and he said "lift the fabric at the base of the seat where it meets the backrest. In there there is a cable like a bicycle brake cable. Give it a prod, fold down the back rest and then fold up again. This cable makes the headrest move and sometimes it gets stuck". Well, tried it just now - headrest fixed. Total time to implement fix ~1 minute. Great Dealer! Could have ripped me of for loads of money and I would have never known.

Okay so im just going to start from the seat being upright in a normal riding position.

1. You need to fold the head rests first. Pull the black tab under both headrests. They should spring into a folded position.

2. pull the side seat lever (on the door side of the seat). This will fold the top/back support down to an angle.

3. There is one more lever on the backside of this seat. Its in plain sight on the angled portion of your seat. Lift the big plastic lever.

4. While keeping the handle lifted, grasp the back of the seat and pull it torwards the front of the car. The seat should come unlocked and roll forward and down more towards the floor. If you have a bunch of junk on the floor, it obviously wont work. clear the path and the seat will fold completely flat.

Also, your drivers seat and front passenger seat cannot be all the way back, they need to come forward some in order for the second row seats' head rests to clear and fold flat.

supposed to unlock with levers to fold back rest down,my 2000 nm has same prob I have to get large flat blade screwdriver or similarobject and get in back(stow rear dicky seat first)and lever the catches that lock base to floor not hard after you have done it once and seee how it works.hope this helps and works for you.