Aftermarket second row heated seats kit install

Ooops! Meant to post this in Mods and projects. How do I delete or move?

Jetstreamblue said:

Did you use a hog ring tool? I've done a few heated seats DIY, and I've always gone ghetto and just ended up using zip ties to redo the fabric.

Click to expand...

No hogs were harmed during this installation. The seat covers go back as they were from the factory. The zipper on the side is a royal pain in the ass, as is the seam clip in the back.

I'm going to get power out of the rear fuse box with the switches mounted in the rear of the center console. I'll tackle this part some time this afternoon. I'll update with pictures afterwards.

Broncofan said:

This sounds like a great idea! Did you remove the seats, first? I know with some things, you think, "Oh, I dont need to remove it, just push it to the side to work on", often does not work, and you wind up removing it anyway. Im not sure how difficult it would be to remove the front seats, but there are utube removing the rear seats. They advise disconnecting the battery first, before removing so as to not accidently discharge the air bag. That seems like a must.

Click to expand...

No need to remove the seats or unplug any of the wire connections of the seats. You do need to remove the plastics though. There is one Phillips screw in the back. Then it’s all just clips. I’m wiring power straight from the battery in the back. There’s a relay triggered by the power to the usb outlet, so there’s only power going to the seats when the vẫn is running.

smreighard said:

This is great! Is there a kit for the front seats too? My wife's butt is cold in the LE.

Click to expand...

I’m sure the front seat cover are secured the same way. If you can’t figure it out, any auto upholstery shop could take it apart. Wiring the kit is just like a car audio amplifier.


Sent from my iPhone using Tapatalk

smreighard said:

Awesome! Now my wife can finally have a hot butt! (she's clearly not on this forum to see this) Which brand did you use here? All of the ones Im seeing look to be only for the seat bottom.

Click to expand...

This is the kit I got. No affiliation.

seat Cover https://a.co/d/3Xck1jl


Sent from my iPhone using Tapatalk

smreighard said:

Thanks for the tips so far! I ordered the same kit from Amazon and should get it by the weekend. If you have a moment (no hurry) can you describe where you patched the power in from a bit more? Did you run wire all the way to the rear? Would the 120v outlet right there be an option?

Click to expand...

The kit comes with two fuse holders with 2-10amp fuses. You’ll need an extra relay. I wired it straight to the battery in the back. I used a fuse tap and connected it to the fuse of the number one USB outlet (only on with ignition) to trigger the relay. I ran the wiring underneath the carpeting. It’s easy to pull up.

This job will take a good day. It took me 3 hours to disassemble the seat cushions and put in the heating pads.

Wiring it took me another good 3-4 hours. I might have had a few drinks when I was doing this. . It was unseasonably warm here in DFW.


Sent from my iPhone using Tapatalk

smreighard said:

Gotcha, thank you! I already have some fuse taps coming with seat mats because Ive done similar work before. Did you just grab a generic relay from an auto parts store or did you put a Toyota specific one in somehow?

Click to expand...

Just a generic relay.


Sent from my iPhone using Tapatalk

smreighard said:

@jgwin214 Did the rear seats have these little clip thingys in the "indents" of the cloth of the seat back? I dont want to pull on them too hard as I cant see that well in my garage with just the lights on. I know you used the battery in the rear for direct power but Ive seen several YouTubes where people used a fuse tap on a front fuse box. The front box on the SE has a 15A circuit for P.Outlet #1 and since Im only doing the drivers seat and rarely use the power outlet, Im thinking of using that. What say you? Thanks again for your help!

View attachment 60889

Click to expand...

Yes, all the seams have clips that hold them down. The ones that were in the way of the heating elements I left unclipped for reinstall. You can leave them in the foam.
You can power it from the fuse box like you described and you wouldn’t need the extra relay. I just like it straight to the battery as it’ll be 20amps max for both seats.