2004 Chevy Avalanche seats go in a 1996 Chevy Tahoe

ask chevy that? USA spec,car not told.
i bet not but ask them.
or ask and auto wrecker this, they have to tools to do that .
they have to fit and work, right, seat heater or seat motors
and those very tricking SRS air bag , person sits on seat, weight sensors, why not ask them.?
no RPO tag list posted by you
the RPO list is and AS BUILT list, and seats too, bags, belts and all.

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? 1:44
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Drivers seat is dead! No power seat or heat. - TheDieselGarage.comwww.thedieselgarage.com/.../96465-drivers-seat-dead-no-power-seat-hea...Mar 22, 2010 - 2003-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2003-2005.... Power seat on driver side didn't work.....passenger did! Neither ...DANG electric seat ' Chevy Truck Forum ' GM Truck Clubwww.gmtruckclub.com/forum/threads/dang-electric-seat.2990/Apr 27, 2006 - 10 posts - ‎7 authors'03 Tahoe My driver seat just stopped, of corse not where I need it, the ... I have a 2003Tahoe and both heated seats are not working. ... with my seat heater on the drivers seat in my 03 Avalanche, it turns ... The driver's side on my Silverado gets way warmer than the passenger side. ... Frozen New Member.Power Seat Problems?? - Tahoe Forum - Che

The best way to find out is call the dealer,they will know,ask for parts department.

Without a scanner u can disconnect the batt for 15 minutes but sounds like you forgot to hook up a plug. Some vehicles have an airbag plug under the seat and are usually yellow. Make sure all plugs are right or pins didn't bend or push out of the back of the plug

do a quick measure of the length of the seat track and were the mounting bolts are but it should fit no problem

Unhook your batery and the the seats. When u put them back hook the seats up then your batery.

hi as long as the seats are out of the same shape as yours if your is not the soft top version then the seats need to be out of the same as yours, but other than that they should just fit strait in they will be held in by 4 bolts 2 a the front of the seats and 2 at the back and if you have an airbag in the seat then you need to undo the block connector on the bottom of the seat and then connect the seats up your getting. if your seats have air bags then the new seats need to have air bags also but if your seats are not air bag then it wont matter if the new seats are or not aas you would just not connect the wires up.

other than that you should have no problems changing the seats over

any full size GM truck seats should be bolt right up but if u want to do some fabrication you could make any seat you want fit

Eighth generation galant 1996-2006
2001 and 2004 should have same body interior specs

take one front seat out and if the bolt holes dont line up
you save yourself a lot of time and trouble

not many DIY car owners willing to muck around
to do interior swaps

There sould be straps on the sides of the seat back rest. Pull on them to release the latch allowing you to lower them