Why doesn't the Stroller Seat lock in side-facing position? December 19, 2019 07:14 The Stroller Seat only locks securely in rear-facing or forward-facing position for safety and stability reasons. Related articles How do I set up and use my G5 Stroller Seat and Cargo Basket? What are the size requirements for children using the Stroller Seat? Does Orbit Baby sell car seat adapters for other brand car seats? How do I set up my Orbit Baby G5 Stroller? How do I remove the wheels from my Orbit Baby G5 Stroller?