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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Cosco Apt 40RF (RF)



Manufacturer  /  Model NameCosco Apt 40RF
Model Number  /  Manufacture DateCC047BHV  /  Feb 22, 2012
Harness Type5-pt
Weight  /  Height5lb - 40lb / 19" - 40"
Evaluation of Labels 3 stars
No additional harness slot height adjustment information is given on the labels. Labels do not explain the use of LATCH. Labels do not illustrate how to remove and prepare LATCH attachments for use. LATCH illustrations are unclear on the labels. Labels do not remind the user to tighten LATCH. Labels were peeling when the rated restraint was removed from the box.
Evaluation of Instructions 4 stars
The manual storage may be difficult to find. The manual storage may be difficult to use. No full picture exists of a properly restrained child in the restraint in the owner's manual.  The illustration of a properly-restrained child is not directly next to sizing information in the owner's manual. Lap-belt-only method of installation is not labeled in the manual.
Securing the Child 2 stars
The restraint was not set for the smallest possible occupant. Harness slots in the pad and in the shell are misaligned or small.  The harness must be rethreaded to adjust height for the child's growth.  There are no pictures on the labels to describe how to convert this restraint to this mode of use. Multiple actions are required to convert the seat to this mode of use; these must be followed in the manual. The LATCH belt must be rerouted to convert the restraint to this mode of use from another mode. The harness must be taken out and rethreaded when cleaning the restraint. When disassembled for cleaning, mandatory parts of the restraint become detached and could be misplaced.
Installation Features 1 stars
Interference is possible between a seat component and the belt routing system.  A printed/molded line is present on the restraint that must be leveled to the ground.  There are not three levels of built-in recline available.  The restraint is equipped with hook-style LATCH attachments which may require twisting to remove from the lower anchors in the vehicle. The LATCH storage area is not clearly labeled.
Overall Ease of Use Rating 2 stars

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