As part of Consumer Reports’ car seat evaluation program, CR conducts its own simulated frontal crash tests. In 2 of 2 forward-facing tests, one each with the Hybrid III (HIII) 6-year-old and weighted HIII 6-year-old, installed with the 3pt belt and top tether, the metal latch between the CRS shell and base deforms and releases. This allows the shell to rotate forward about the lower retention bar, significantly increasing the forward head excursion and resulting in head contact with the simulated front seatback.
Additionally in 2 of 3 forward-facing tests with the HIII 3-year-old installed with the 3pt belt and top tether, the headrest adjustment track breaks which allows the headrest to completely disengage during the loading phase of the event. Because of the harness position, this disengagement results in minimal harness payout. However, this structural issue occurring with the 3-year-old, which represents the age for typical forward-facing use, is considered significant.
While both dummy and the CRS remain retained post-test, there is concern for increased injury risk in a subsequent crash event in both test conditions.
An additional concern was also observed in our ease-of-use and fit-to-vehicle evaluations. With the CRS shell positioned in the rear-facing position on the base, the seat fails to stay locked and can be rotated without use of the rotate release on the base. The seat does remain locked when the shell is positioned forward-facing.