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Safety 1st onBoard 35 LT User Manual

Safety 1st onBoard 35 LT
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onBoard 35 LT
Infant Car Seat
KEEP INSTRUCTIONS FOR FUTURE USE.
Read all instructions before
using this car seat.
WARNING Failure to follow the
warnings on the labels and in the
instruction manual can result in
serious injury or death
to your child.
0721-004R8
8.26.20
www.safety1st.com

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Safety 1st onBoard 35 LT Specifications

General IconGeneral
Weight Capacity4-35 lbs
Height Capacity19-32 inches
Harness Type5-point harness
Side Impact ProtectionYes
Base IncludedYes
Machine Washable CoverYes
Minimum Weight Recommendation4 lbs
Maximum Weight Recommendation35 lbs
Maximum Height Recommendation32 inches
Care and CleaningMachine washable

Summary

Overview

Measure Your Child

Instructions on measuring your child for proper car seat fitting.

Adjust Car Seat to Fit Your Child

Steps to adjust the car seat for a snug and safe fit.

Install Car Seat into Your Vehicle

Procedures for correctly installing the car seat in a vehicle.

Snugly Secure Your Child in Car Seat

Guidance on securely fastening your child into the car seat.

Quick Navigation

Child Fit and Requirements

Key requirements and fit checks for child safety.

Installation Methods

Guides for installing the car seat using base or vehicle belts.

Adjusting and Securing Child

Steps for adjusting the seat and securing the child.

Parts of Car Seat

Accessory Use

Infant Insert

Information on using and removing the infant insert for comfort and fit.

Harness Covers

Guidance on using and removing harness covers for comfort.

Rear-Facing Use Requirements

State Laws

Information regarding state-specific regulations for car seat usage.

AAP Recommendations

Guidelines from the American Academy of Pediatrics on child restraint use.

Rear-Facing Weight and Height Limits

Specifies the weight and height limits for rear-facing installation.

Preparing Car Seat for Child Fit

Harness Adjustment Steps

Step-by-step guide to loosen and unbuckle the car seat harness.

Rear-Facing Child Fit Guidelines

Head and Harness Position

Correct positioning of the child's head and harness straps for rear-facing.

Buckle Position

Proper placement of the buckle for child safety.

Changing Harness Strap Position

Harness Adjustment Steps

Detailed steps to adjust the harness strap position for a proper fit.

Changing Buckle Position

Buckle Adjustment Steps

Instructions for changing the car seat buckle position for optimal fit.

Harness System Adjustments for Smaller Infants

Adjusting Buckle Strap Length

Steps to adjust the length of the buckle strap for infants.

Adjusting Harness Strap Length

Steps to adjust the length of the harness straps for infants.

Removing and Installing Car Seat to Base

To Remove Car Seat from Base

Procedure for detaching the car seat from its base.

To Attach Car Seat to Base

Procedure for securely attaching the car seat to its base.

Base Use (on select models)

To Lower Base Foot

Instructions for lowering the adjustable base foot.

To Store Base Foot

Instructions for storing the adjustable base foot.

Canopy Use

To Adjust Canopy

How to adjust the car seat canopy to the desired position.

To Clean Canopy

Instructions for cleaning the car seat canopy.

Carrier Use

To Adjust Carry Handle

Steps to adjust the car seat's carry handle.

Warnings

Important safety warnings related to using the car seat as a carrier.

Securing Child in Car Seat

Child Placement and Harness Fastening

Steps for placing the child, buckling, fastening the chest clip, and tightening the harness.

LATCH: Lower Anchor Use

Vehicle Belts

Types of Retractors

Rear-Facing Use with Base

Vehicle Belt Install

Base Installation Steps

Comprehensive steps for installing the base using a vehicle belt.

LATCH: Lower Anchor Belt Install

LATCH Installation Steps

Comprehensive steps for installing the base using the LATCH system.

Rear-Facing Use without Base

Vehicle Belt Install

Car Seat Installation Steps

Comprehensive steps for installing the car seat without the base using a vehicle belt.

Removing Harness System

Harness Removal Steps

Detailed steps for removing the harness system from the car seat.

Removing Seat Pad Set for Cleaning

Seat Pad Removal Steps

Detailed steps for removing the seat pad for cleaning purposes.

Cleaning Parts of Car Seat and Installing Seat Pad Set

Cleaning Pad and Accessories

Instructions for cleaning the seat pad and accessories.

Cleaning Harness Strap

Guidance on cleaning the harness straps.

Cleaning Buckle & Car Seat Shell

Instructions for cleaning the buckle and car seat shell.

Installing Seat Pad

Steps for correctly installing the seat pad.

Installing Harness System

Harness System Installation Steps

Detailed steps for reinstalling the harness system.

Aircraft Information

Aircraft Use Certification

Information confirming the car seat is certified for aircraft use.

Rear-Facing Aircraft Installation

Instructions for installing the car seat rear-facing on an aircraft.

Replacement and Expiration of Car Seat

Replacement After a Minor Crash

Guidelines for replacing the car seat after a minor crash.

Replacement After a Moderate to Severe Crash

Mandatory replacement instructions after severe crashes.

Expiration

Information on the car seat's expiration date.

Child Restraint Use

Installation in Vehicle

Vehicle Seating Position

Registration and Safety Notices

Dorel Juvenile Group Information

Contact information and registration details for the manufacturer.

Warranty

Troubleshooting

Buckle or Harness Release Lever Issues

Solutions for problems with the buckle or harness release.

Harness Twisting

Advice on preventing and fixing harness twisting.

Replacement Parts List

Dorel Juvenile Group Information

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