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jjswan33

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Hey all. In the process of removing my rear seat. Documenting the steps here:

Tools I have used so far:

Needle nose vice grip
Staple remover
Breaker Bar
Impact Wrench
15mm wrench
15mm impact socket

1. Remove the larger plate on each lower seat section to expose the wire harness for the seat. (Credit to @Forager for this step)

Rivian R1T R1S Removing back seat from R1T - Step by Step D963D68C-038A-4F16-9851-645D51EA75B0


2. Unclip the wire harness. I used the needle nose vice grip for this.

Rivian R1T R1S Removing back seat from R1T - Step by Step 9124F38C-BE99-4613-BDE6-8DC2490DADBE


3. Pull of the clips from above the hinge on the lower portion. I found prying from the bottom corners was effective, you have to pull hard. This exposes the 14mm bolt attaching the seat bottom. There are two on each side.

Rivian R1T R1S Removing back seat from R1T - Step by Step 8F1B4D76-5A9B-4410-BFBD-86A5A5FA37ED
Rivian R1T R1S Removing back seat from R1T - Step by Step 43359D46-C93B-40AC-8B4F-B95DF69B5496


4. Remove the 4 bolts. To pull the seat out there is a clip they goes under the trim you have to menouver out but it’s not physically attached.
5. I tucked the cable harness under the carpeting where the hinge attached.

Rivian R1T R1S Removing back seat from R1T - Step by Step 8AC4611D-55D2-4D35-BD63-A5F8EB73BE06


6. Remove the headrests on either side (center one can stay). Remove the bracket along the bottom.

Rivian R1T R1S Removing back seat from R1T - Step by Step 84680363-8F27-4CEC-A90E-74403F118D42

7. Remove two bolts behind the head rests (14mm)
8. Remove Nut on both sides (the shiny one).
9. Remove the center bolt on the bottom
Note: The bolts below the seatbelts do not need to be removed, I have not checked what effect removing the seat belt has.
10. Two wire harnesses on either side to disconnect
Rivian R1T R1S Removing back seat from R1T - Step by Step 03E183DE-3C15-4E3B-BDD3-A542AAC2EFBB

11. From here you can pull the seat.

Next step for me is to finish the space but I will continue that on my build thread (in my signature). If anyone has a suggestion for some finishing material, some kind of lightweight composite material maybe.

Information:

40 section of the lower seat weighs about 13 lbs
60 section of the lower seat weighs about 17 lbs
Seat back weighs about 50 lbs

No dash warnings of any kind, only issue is the rear heated seat will no longer turn on.

Rivian R1T R1S Removing back seat from R1T - Step by Step 7144D122-D24D-4297-88DA-489C62EAB0DC

Rivian R1T R1S Removing back seat from R1T - Step by Step 7069110B-DBC0-463C-A5BC-DA10BC59FC64
Rivian R1T R1S Removing back seat from R1T - Step by Step F65D619B-40F3-46C2-B10C-3F8EAD19BF0A
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Forager

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Nice work! I’m really looking forward to this project.
 

COdogman

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You need to talk to that dog of yours. Their fur is UNDER the seats!
 
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jjswan33

jjswan33

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jjswan33

jjswan33

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Oldsmobile_Mike

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Great post! I've been considering the same. Originally my plan was to remove the back seat and put a tool rack back there, but was surprised to find I had enough room for all my main tools (between the gear tunnel, frunk, and spare tire area) so it's not a priority right now. But was thinking of fabbing up something like this:

Rivian R1T R1S Removing back seat from R1T - Step by Step 1689742471113
 

Oldsmobile_Mike

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Dumb question but have you noticed any electrical issues or warnings with it removed?
 
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jjswan33

jjswan33

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Dumb question but have you noticed any electrical issues or warnings with it removed?
Nope not so far. Only the back heated seat doesn’t work. I took this video during testing yesterday.
 

COdogman

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He is feeling better about it now I think..

306A6831-FBE1-4462-AF1F-36622D7159AD.jpeg
He does look better! You have taken that guy on so many great adventures that he probably pouts any time something exciting isn’t happening now.
 

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connoisseurr

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Well now I know where the factory amplifier is :clap:

Time to go tear the truck apart and get to measuring amplifier inputs for properly adding an aftermarket subwoofer.
 

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jjswan33

jjswan33

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In the end I opted to keep the seat back installed. I can achieve my objectives with just the lower portion of the seat removed. I would have loved to drop the 50 lbs with the seat back but by the time I replaced it with plywood and carpet the weight savings wouldn't have been that big and it would never look as clean. As a plus this way it will be relatively easy to throw the seat back in should I need it.

Long term I may revisit, a molle panel on the passenger side would certainly be nice.
Rivian R1T R1S Removing back seat from R1T - Step by Step A1856A01-2361-4AA6-B861-AD47A52D7A50
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