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 Olympia (B)



Manufacturer  /  Model NameDiono Olympia
Model Number  /  Manufacture DateUS30100  /  Apr 1, 2014
Harness TypeHighback
Weight  /  Height50lb - 110lb / up to 57"
Evaluation of Labels 1 stars
There is no complete illustration of a properly restrained child next to the sizing information on the labels. No supplemental sizing information is given on the labels. The belt routing path is not completely labeled. The seat is not depicted in a rear vehicle seat on the labels. There is not an explicit warning against using a lap belt only on the labels.
Evaluation of Instructions 2 stars
The manual storage location may not be obvious, and some may find it difficult to use. No full picture exists of a properly restrained child next to sizing information in the owner's manual. Supplemental sizing information is not given in the manual. The seat is not depicted in a rear vehicle seat in the manual. The warning stating that the rear seat is the safest place for installation is located among other warnings. The warning stating that a lap-only seat belt may not be used is not illustrated.
Securing the Child 1 stars
There are no illustrations on the child restraint showing how to convert this restraint to this mode of use. The harness must be removed from the restraint to convert to booster mode; it may be misplaced. While disassembling for cleaning, mandatory pieces may become loose and could be misplaced.
Installation Features 5 stars
Overall Ease of Use Rating 1 stars

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