Why doesn't power button work?

SOURCE: Power Drivers seat stuck in partial recline

If it's anything like seats in GM's there is only one motor for each "function". They use a small gear box, with shafts and gears to distribute the movement to both sides of the seat. You will see a few motors under the seat also. Depending on how they made them, the recline motor may be under there too.

The cost will vary, and that's only IF a replacement part is available. Sometimes you have to get awhole new seat (some leather Caddy seats are close to $2500 EACH - ouch). You can always scour ebay (just do a search for "concorde seat" - theres actually a guy selling the entire lower rail assembly as i'm writing this)

Some seats have a factory unzippable cover. This may or may not allow you access to poke around in there.

I would check for any obstruction caught up in the pivot of the seat or near the area where the shafts / gears meet the tilt mechanism. It could be anything really, but coins tend to be the majority of the culprits! I've found that trying to lay on your head to find them is a pain, and you always miss something. It's easier to unplug the power to the seat, take out the 4 bolts, and turn the seat upside down in the driveway and shake out whatever is caught up in it.

SOURCE: front power seat

this is a common problem unfortunatly the switch is no good and must be replaced

SOURCE: drivers side seat not working properly

hi this sounds like the coiled spring that is enclosed behind the cover where the recline lever is it has either broken or the pin it locates on has snapped or spring has for some reason slipped its fastening ? try removing cover and investigate the spring and its locator points

SOURCE: camry power driver seat motor won't return from recline position

it has three septet motors with gears
if one is bad you will replace it

SOURCE: drv side window stopped working in up position

hey there ,,it could be either the switch for the window thats faulty or else it could be the regulator itself,,,try a switch first its cheaper ,,you might get on in a breakers yard,,if its still not working then its the regulator itself(winder in the door)hope that helps