How do I use the Graco Slimfit as a booster seat?
The Graco Slimfit can be used as a booster seat for older children who have outgrown the forward-facing mode. The Booster Mode section includes instructions for using the car seat as a booster and guidance on setting up the highback booster configuration. Refer to the 'Right Mode of Use' section to confirm your child meets the age and size requirements for booster mode. (Pages 31-36)
From the official Graco Slimfit 3-in-1 Car Seat manual, page 31
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