Child Safety Seat Ease of Use Ratings


Are All Seats Safe?
All car seats rated by NHTSA meet Federal Safety Standards & strict crash performance standards. While all rated seats are safe, they do differ in their ease of use in four basic catagories:


Evaluation of Instructions

Vehicle Installation Features

Evaluation of Labels

Securing the Child


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Diono Radian R100 (RF)



Manufacturer  /  Model NameDiono Radian R100
Model Number  /  Manufacture Date16035-US-01  /  Aug 1, 2016
Harness Type5-pt
Weight  /  Height5lb - 40lb / up to 44"
Evaluation of Labels 2 stars
There is not a full picture of a child properly restrained in the child seat directly next to sizing information on the labeling. No supplemental sizing information is given on the labels. No indication of correct harness height relative to the child is given on the labels. The labels do not explain how to use LATCH.
Evaluation of Instructions 3 stars
The instruction manual storage location may be difficult to find and use. No full picture exists of a properly restrained child next to sizing information in the owner's manual. Methods of installation are not completely illustrated and labeled in the manual. The section describing vehicle seat belt types is incomplete and may be missing important information. The user must read text alongside an illustration to prepare LATCH attachments for use.
Securing the Child 2 stars
The seat was not set up for the smallest occupant when it was removed from the packaging. The harness must be rethreaded to adjust height for the child's growth as well as for reassembly after cleaning. When disassembling for cleaning, loose parts may be generated and could be misplaced. The LATCH belt must be rerouted to convert the restraint to this mode of use from another mode. Replacing the harness after using the seat in booster mode requires multiple steps which should be followed in the owner's manual.
Installation Features 3 stars
It may be uncomfortable for those with larger hands to route the seat belt or LATCH belt through the belt path. No angle feedback device is present.  There are not three levels of built-in recline available.  LATCH attachments have buttons to depress for removal.
Overall Ease of Use Rating 2 stars

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