CHEVROLET 2010 Impala - Manual (Page 39)

Do not have a seatback reclined if the vehicle is
moving.
Center Seat
The vehicle may have a front center seat. There are
cupholders on the underside of the seat cushion. To use
them, flip the seat cushion forward. The seat can also
be used as a storage area by lowering the seatback.
See Center Console Storage on page 3-42.
The seatback doubles as an armrest for the driver or
front passenger when the center seat is unoccupied.
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