Britax First Class Si User Manual

USER GUIDE - TO BE STORED IN RECLINE FOOT
An extremely practical long lasting child seat
Birth to 18kg (birth to around 4 years)
Rearward facing for baby up to 13kg or forward facing
for an older child between 9kg and 18kg.
THE MOST TESTED CAR SEAT ON THE ROAD
*WARNING: DO NOT use on passenger seats fitted with a
front airbag unless your vehicle manufacturer confirms it is safe.
UNIVERSAL
Up to 18kg Y
E
11
03.44.166
First Class Si
First Class Si
64410_BBO-604-04_cov 5/20/04, 3:14 PM1

Britax First Class Si Specifications

General

Brand	Britax
Model	First Class Si
Category	Car Seat
Language	English

Summary

Vital Information

Essential Safety and Usage Guidelines

Crucial DOs and DON'Ts for safe operation and maintenance of the child seat.

Frequently Asked Questions

Crucial Parts of Child Car Seat

Identification of Key Components

Illustrates and names essential parts like harness, buckle, and seat shell.

Seat-Belt Types and Requirements

Fitting Your Child in the First Class Si

Harness and Strap Adjustment

Adjusting harness, checking/changing shoulder strap height, and removing child.

Rearward Facing Installation

Detailed steps for installing the seat in the rearward-facing position.

Forward Facing Installation

Instructions for installing the seat in the forward-facing position.

Important Information

Read Before Your First Journey

Critical usage warnings, prohibitions, and post-accident advice.