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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Nuna AACE (B)



Manufacturer  /  Model NameNuna AACE
Model Number  /  Manufacture DateCS-40-003  /  May 26, 2016
Harness TypeHighback/No Back
Weight  /  Height40lb - 120lb / 38" - 60"
Evaluation of Labels 5 stars
The warning against using a lap belt only is in text only (not illustrated) on the labels.
Evaluation of Instructions 4 stars
The instruction manual cannot be accessed when a child is seated in the seat and the storage location may be difficult to find. The indication that the safest place in the vehicle for children is the rear seat is buried within a bulleted list. There is no warning against using a lap-only belt in the belt routing section of the instruction manual.
Securing the Child 2 stars
The car seat was not fully assembled when it was removed from its packaging. There are no illustrations on the car seat showing how to convert the booster from highback mode to no-back mode.
Installation Features 5 stars
Overall Ease of Use Rating 4 stars

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