Plastic roller under seat support to allow movement avanti is400

There is an electric motor that controls the blend door. You probably have an issue at the blend door. Either the motor is bad, or the actuator isn't connected. The actuator arms are know to crack and allow the motor to move without moving the actuator.

under seat there are rods and plastic gears start there

Test the switch your using, to perform
the seat movement with the issue

Check for items under the seat,lack of lube,
loose wire connections,especially the drivers seat

make sure nothing is lodged under the tracks this is common things get thrown under the seat and stops them in the track

Either the seat track is broken or there is something jammed up under the seat that will not allow proper movement of the seat - or both. Take a look under the seat to see what is going on.

first check the switch,motor is OK since other movements are OK. also find out the welds they use under the seat to connect the steel brackets are not that strong and snap leaving the seat at an angle position.The best bet is to look under the seat at the side thats angled down and look for a long metal pipe with a U shape it might look a little rusted.If this is so you need to find a welder to reweld the two pieces.

there are a few things possible a flex pipe (piece the allows slight movement ) or a gasket fairly cheap worst case $100-150 at a repair shop, less if you want to get dirty on your own car. parts stores have what you need

does this have automatic seat positioning when you open the door or hit the unlock button on your key fob?

here's how it works:

Seats — Programmable
The memory seat system allows automatic positioning of the driver seat to two programmable positions using the message center, the key fob or the keypad on the door.
Seats — Driver Seat Module
The Driver Seat Module (DSM) is located under the driver's seat and is attached to the seat frame. The DSM will:

• control the movements of the driver's seat and power exterior rearview mirrors
• store and recall seat and mirror positions of two personalized settings
• receive all power seat and mirror control inputs from the Driver's Door Module (DDM) through the J1850 communication network
• move the exterior rearview mirrors downward when the transmission is shifted into reverse, if enabled.

Seats — Driver Door Module
The driver's seat regulator control switch is connected to the Driver Door Module (DDM). The DDM receives the driver's seat regulator control switch input and communicates the direction of movement over the J1850 communication network.
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Visual Inspection Chart Mechanical Electrical

• Front seat tracks obstructed.
• Seat at limit(s) of travel.

• Open fuse junction panel Fuses 39 (10A), 41 (20A), and 28 (10A).
• Open power distribution box Fuse 13 (30A).
• Loose, corroded or damaged connectors.
• Damaged switches.
• Damaged motors

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Also, the dealer can run a scan on your seat modules with his tester and tell you what the codes are. They should only charge an hour to do this. Then you can decide what to do. Call your dealer and ask how much to run the scan test.

A little plastic bumper, located on a metal tab on the inside of the bottom seat cushions breaks off. It is supposed to hit the seat back release and allow the back to fold down when you push the bottom cusion in all the way. I finally just bent the metal tab up so it would hit the release and that fixed it. (Look for the broken palstic pieces under the seat cusion area as an indication) The dealer replaced the plastic part several times... a waste of time.