Scion parts told me that you have to buy a complete uphostered seat Approx $1400.00 to get the seat back springs so here is how to get around that

I have figured out how to fix the drivers seat back springs.
BTW you have to buy the entire uphostered seat to get the Toyota fix.

Here is what I did

First remove seat very simple except be careful of the two wires under the seat.
Careful of the plastic parts arounds back seat mount.
Second cut the hog nail wires that hold the seat back uphostery together.
Unzip the zipper on the side of the seat( Not all the way)
pull the uphostery down so you can see whats broke.
It looks kinda like a basket of wire I cut all of the wires out except the top & bottom wires & sides should have a square of wire around.
Then go the hardware store and buy six springs like they use on screen doors
size 7/16th X 8 1/2 " x.041. cost me $7.29 per pkge of 2
And a peice of 1/8" 6"X6" square flat piece of rubber( Harbor freight)
Tape or glue the rubber against the foam to protect it against the springs.
Then find the 4 white fittings inside the frame one on each side you can remove they would be the bottom ones they have a slot to hook the springs in stretch one across that pair.
The white one on top won't come out so you have to use wire to wire the springs to those two.
You now should have 2 springs running horizonal across the back.
You need 3 spring running vertically

Now get some heavy plastic zip tie's you want to wire these springs vertically 3 across from the top to the bottom original wires you will need to stretch them until they touch.
I put a wire thru the middle spring and wired it to the two outside wires so it doesn't move from side to side. Took me about 2 hrs.

ALL THIS ASSUMES YOU HAVE THE SEAT TURNED UPSIDE DOWN ON A BENCH.

If you have any more questions or need more instructions just e-mail me at. quanah1000@yahoo.com

BTW I'm 285lbs and it works better than the original wires.
hope this helps and saves you some money.

 

Has anyone fixed their seats yet?/

 

Whats wrong with the seat?

 

Mine has two wires coming out the back... If it gets any worse I will do something, but until then, I will just let it be... Hopefully it does not get worse though!

Thanks for the writeup though! Good to have if I need to fix it.

 

It gets worse

Cut the wires that stick thru the upholstery you won't need them anyway, save your seat back that way.

 

The small wires that support your back cushion when they break they stick thru the back of the seat and you loose support for your back.

When they do cut them of you won't need them when you repair the seat.