In 2014, the Sedona was only available as a 7-seater, but in 2015 it introduced the option for an 8-seater by adding 2C. 2C is narrow, but can accommodate some rear-facing car seats – the Clek Fllo worked well rear-facing here. We expect that rear-facing infant seat bases will also work nicely in 2C. Since 2C does not have a tether anchor, it is not suitable for forward-facing car seats. 
2008 was the last year the Entourage was sold in the US.
The Sedona & Entourage for these model years are nearly identical to the previous models EXCEPT the 3rd row loses a lower anchor position (the older model had lower anchors in 3D & 3P, this one only in 3P) and the tether anchor that was in 3D moves over and is for 3C. Only the 60/40 split 3rd row is available in this model year range – which is a good thing, since the 60/40 3rd row is the one that has head restraints and shoulder belts for all positions.
I could not find any images of a Sedona with this layout – of 2 seats in the 2nd row, and 2 seats in the 3rd row.
I could not find any images of a Sedona with this layout – of 2 seats in the 2nd row, and 2 seats in the 3rd row – making me suspicious that it might never have existed.
The Sedona was redesigned for 2006.
2006 saw the introduction of a shoulder belt and head restraint for 3C (prior years it only had a lap belt and no head restraint) AND an additional tether anchor & lower anchor positions in the 3rd row.
There are 2 versions for the 3rd row in this vehicle – one with a 50/50 split, and one with a 60/40 split. The Long Wheelbase (LWB) model has the 60/40 split 3rd row, and the Short Wheelbase (SWB) model has the 50/50 split 3rd row. The LWB model is far and away the better choice.
50/50 split 3rd row (SWB):
The shoulder belt for 3C is attached to the vehicle seat. 3C is not a very usable position as it straddles the 50/50 split and has no tether anchor and no head restraint. However, 3D & 3P are quite usable and have lower anchors and tether anchors. We think it is best to consider this back seat as a 2 seater, and ignore that 3C even exists.
60/40 split 3rd row (LWB):
The shoulder belt for 3C comes from the roof (yes, this is safe). The lower anchors in 3D are overlapped into 3C such that you can not use the lower anchors for a booster in 3D as it will sit on top of the seat belt it needs to use. If you install a car seat in 3D with the lower anchors, you will not be able to put anyone or anything in 3C. See picture below.
The Sedona was first introduced in 2002.
The 2nd row is available as 2 captain’s chairs, or a 2-person bench.
The 3rd row has 3 seats, but 3C is useless as it straddles a 50/50 split, has only a lap belt with a very long buckle stalk, and has no head restraint. Due to the very long buckle stalks for 3D & 3P it will be difficult to achieve a secure installation with many car seats – and we’d suggest saving these seats for boosters & adults when possible. If you do need to install a car seat in the 3rd row, you’ll need to twist the female end of the seat belt (the buckle) 3 full revolutions to shorten it before buckling the seat belt.
