Bay™ Latch SI Plus How To, Manual and Installation
meet bay™ latch SI plus, our 3-in-1 harness booster with rigid LATCH and footrest, made for safe and simple everyday journeys.

at a glance
| model | C2433AA |
| harness booster & highback size | l 16 x w 19 x h 24 in.backless booster size: l 16 x w 19 x h 9 in. |
| harness booster & highback | 23.7 lb. backless booster: 5.2 lb. |
| usage | 30 lb. up to 120 lb. | 27 up to 60 inches |
| harness booster | 30 lb. up to 65 lb. | 27 up to 49 incheshighback booster: 40 lb. up to 100 lb. | up to 57 inches, minimum 4 years oldbackless booster: 50 lb. up to 120 lb. | 43 up to 60 inches, minimum 4 years old |
| note | Product Dimensions: |
| note | Approx weight: |
| manual | coming soon |
fitting in your car
bay™ latch SI plus installs with rigid LATCH, your vehicle seat belt or the top tether when forward facing, as set out in the instruction manual. The check that matters: once fitted, give the seat a firm wiggle where it meets the car. A correct fit stays put. If anything moves more than a little, take it out and start again... it takes a minute and it is always worth it.
using bay™ latch SI plus day to day
Buckle up the same way every time: straps lying flat and snug, nothing twisted, and the headrest climbing as your little one grows. The instruction manual shows every adjustment, so the fit stays right, ride after ride.
washing and caring for bay™ latch SI plus
Crumbs, spills and sticky fingers are all part of the fun. A few things worth knowing about keeping bay™ latch SI plus fresh: 2 removable, dishwasher-safe cup holders (top rack only); removable, machine-washable fabrics. For everything else, the wash label stitched into the fabric and the care section of the manual have the answer, and frames and plastics wipe clean with a damp cloth and mild soap. One rule above all: if bay™ latch SI plus has been through an accident, retire it and replace it, safety first.
features
- 9-position built-in rigid LATCH
- Color-coded installation indicators
- Installs with LATCH, vehicle seat belt & top tether, or LATCH & vehicle belt
- FAA-compliant in harness mode
- Tested to the newest safety standards, FMVSS 213a and 213b
- 5-point harness restrains children across their sturdiest body parts
- Side impact protection (SIP) bolsters for use up to 40 lb.
- Guard Surround Safety™ offers side impact protection in the event of a crash
- Removable 7-position footrest keeps growing legs comfortable
- 4-position adjustable seat depth provides more room as your child grows
- 15-position headrest
- Padded armrests, harness and buckle covers
- Ventilated seat back encourages airflow
- 3 car seat modes in one
- GrowTogether™ no-rethread headrest & harness
- AutoClick™ magnetic chest clip
- 2 removable, dishwasher-safe cup holders (top rack only)
- Harness storage for booster mode
- Removable, machine-washable fabrics
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