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To check the transmission fluid you will need a 10 mm socket and ratchet.
The dipstick is back behind the engine by the fire wall.
It's easier to see if you remove the top engine cover.
The dipstick is secured by one 10 mm bolt
The car should be in park and running when checking the fluid
If low, it takes a special type of trans fluid called Matic S.
This can only be got at the dealer. So do not add any other type of trans fluid if found low.
If you have any more questions on this, please feel free to ask. Thanks Jay!