Product Description
,Britax Frontier Booster Car Seat, Rushmore ,Teutonia T-Linx System, Carbon Black , Lilly Gold Sit 'N' Stroll 5 in 1 Car Seat & Stroller , Orbit Baby Stroller Travel ,Britax Second Seat for B-Ready Stroller Color: Geo Black From the Manufacturer The B530 Compass by First Years booster car seat has all the great features of the B505 except it is 2" taller than the model B505 offering a higher belt path to accommodate children with larger torsos. Our boosters will deliver many miles of happy driving and one of the most comfortable rides ever. The full line of The First Years Compass Belt Positioning Boosters has been awarded the highest ease of use rating, FIVE STARS, from the National Highway Transportation Administration (NHTSA). Each Compass Booster is easy to use and has features that we developed with you and your child in mind. A comfortable seat keeps you child in the seat longer and our features are easy for you to use and they make your ride more enjoyable. Using our boosters has never been easier. Our rotating armrests empower your child to easily climb into their seat. And once your child is up and in the seat, the rotating armrests make it easier for you to secure your child with your vehicles safety belts in the correct position. Once you have buckled your child in, simply rotate the arm rests down and you are ready to go. All of our boosters featured a NO GAP back wondering what that means? As your child grows, the back of our booster does too. At their lowest weight and height your child is fully surrounded with our NO GAP back. As they start to grow, simply use the side height adjustments and raise the back and your child is still fully supported. You never have a problem storing or transporting your Compass booster with our patented Easy One Hand Fold and built in handle. The Compass Boosters all feature two retractable cup holders. No more reaching behind trying to hand a cup over while trying to keep your eyes on the road. And our cup holders are oriented in such a way that when your booster is properly installed they hold your childs cup or snack upright and secure. For use with children 30-100 pounds (about 3-10 years old).

This review is from: The First Years Compass Booster Seat, Outdoors (Baby Product)
I bought a B540 and a B530 at the same time for our son, one each for my and my wife's cars. At first I was thrilled! They are light, apparently very well made, and get a fantastic NHTSA rating. One drive, however, pointed out a major design flaw: tipping.
Our son is a few months shy of his 4th birthday, weighs about 40 pounds, and stands about 38" tall. He is very quiet in his car seat and doesn't squirm around at all. He loves being able to (at the appropriate time) undo his own latch and get out of the car himself. The arm rests and cup holders are also big hits with him.
What he doesn't like and what scares the (bad word) out of us is even moderate cornering speeds cause the chair to tip over. Since this system uses only the shoulder and lap belts to hold both child and chair in place, anytime the vehicle moves with less force than trips the seatbelt tensioner or locking mechanism both child and chair are free to slide around to the extent a freely moving seatbelt allows. That turns out to be quite a lot.
Yesterday was a perfect example. When leaving daycare I made a concerted effort to take up as much seatbelt slack as possible as an experiment to see if I could prevent the tipping. Maybe one minute later I left a stoplight making a left-hand turn. By the turn's exit my son was at a 45 degree angle to the right and kind of freaking out about it. The turn had been nowhere near enough to cause the seatbelt to lock yet the centrifugal force almost completely tipped him and the seat on their sides. I keep wondering what would happen if I swerved to avoid an obstacle and then had to slam on the brakes. The rapid turn would almost certainly dump the chair over, causing the restraints to be BADLY misaligned during a panic stop. Who knows what would happen if that was followed by a collision.
I have resorted to placing the seat in an outboard position behind the driver's chair. This allows it to sit in the depression formed by the contouring of the car's seats. Placing the booster chair in the middle position, the safest place in an accident, puts it on a slight hump and makes this problem so bad as to be literally unusable. It is tipping on virtually every corner, enough to cause my son's eyes to widen.
I called Learning Curve and the rep said she had not heard of such a problem. After checking with an engineer I was told I probably had the seatbelt misaligned or the seat installed incorrectly, neither of which is true (the seats are VERY easy to install). The only option she suggested was moving up to either their model B570 or B830, both of which are significantly more expensive but feature mounting hardware.
I cannot fathom why these seats are not either anchored or designed with a wider base to prevent tipping. The anchor points would not need to be terribly robust as restraint during an accident would still be handled by the belt. I had briefly thought about running a bungee cord between the rear LATCH points, passing it through the fold where the lower seat meets the backrest, but my concerns about safety being untested with that configuration were echoed by the Learning Curve rep.
I drive and Acura RDX, my wife has a Ford Focus. I have leather seats, she has cloth. Our vehicles interior designs are completely different yet we both experience the same issue. As it stands I cannot and would not recommend these seats to anyone until the issue of tipping during moderate lateral acceleration has been addressed. Both seats will be returned to Amazon; I have not yet decided what their replacements will be.
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