Ford Fiesta Owner's Manual page 22

Seating positions
Rear centre seat
IL Suitable for particular ISOFIX child restraints systems of the semi-universal category.
Please consult child restraints systems suppliers' vehicle recommendation lists.
IUF Suitable for ISOFIX forward facing child restraints systems of universal category
approved for use in this mass group and ISOFIX size class.
1
The ISOFIX size class for both universal and semi-universal child seat systems is defined
by the capital letters A to G. These identification letters are displayed on the ISOFIX child
seat.
2
At time of publishing the recommended Group O+ ISOFIX baby safety seat is the Britax
Romer Baby Safe. See an authorised dealer for the latest details relating to our
recommended child seats.
3
At time of publishing the recommended Group 1 ISOFIX child seat is the Britax Romer
Duo. See an authorised dealer for the latest details relating to our recommended child
seats.
Child Safety
Rear facing
Up to 29 lbs (13 kg)
Seat type
Size class
Seat type
20
Mass group categories
0+
Forward facing
20 - 40 lbs (9 - 18 kg)
2
IL
Not ISOFIX equipped
1
3
IL, IUF