The Evenflo Sonus is part of the Car Seat
test program at Consumer Reports. In our lab tests, Car Seat
models like the Sonus are rated on multiple criteria, such as those listed below.
Ease of use: Our judgment of how easy each seat is to use including the clarity of labels and instructions, adjustments of clips and buckles, the transition of the seat from rear facing to forward facing and installation features such as LATCH connections and top tethers.
Rear LATCH: Rear-facing installation using the LATCH system.
A rating of how compatible, easy and secure a child car seat can be correctly installed in certain test vehicles. This rating is based on a rear-facing installation using the LATCH system.
Rear belt: Rear-facing installation using vehicle seat belts.
A rating of how compatible, easy and secure a child car seat can be correctly installed in certain test vehicles. This rating is based on a rear-facing installation using the vehicle belts.
LATCH connectorsType of LATCH connection.
Harness adjustmentMethod of adjusting harness height / position for different height children.
Recline level indicator type
Recline level indicator typeType of indicator that shows correct level of recline in rear facing orientation.
Recline level indicator position
Recline level indicator positionLocation of level indication on seat.
Multiple recline positions
Multiple recline positionsIndication if seat has more than one recline position.
Spanish language instructions
Spanish language instructionsIndicates the availability of spanish language instructions. None, Included or available.
Rear facing weight range
Rear facing weight rangeMaximum weight (lbs.) allowed for child in rear facing orientation.
Forward facing weight range
Forward facing weight rangeMaximum weight (lbs.) allowed for child in forward facing orientation.
Height rangeRange in inches of children allowed by seat.
Seat weightWeights listed are to the nearest pound.
Base widthWidth of seat base as measured from underside of seat. If the seat design includes a detachable base, measurements are given for both with and without base.
Overall widthTotal width of seat at its widest point.
Shell heightHeight of shell/seatback as measured from seat cushion to top of seatback (against child seating surface). If the seat design includes a detachable head extension, measurements are given for both without and with the extension in place.
Overall heightTotal height of seat from base to top. If the seat design includes a detachable head extension, measurements are given for both without and with the extension in place.