DH and I are trying to decide how long to keep DS in a 5point harness booster seat. Right now he is 3yr 3m and 34 lbs. In our state car seat laws require for him to be in a harness till 4yr and 40 pounds, but we think we are going to go longer than that since we don't trust he will keep a seatbelt on while the car is moving.
My question is how long all of you are using or used the 5 point harness for.
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Re: Booster Seat Poll
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We are planning to move DD into the Britax Frontier 85, 5-point harness booster. It can be used forward-facing up to 85 lbs with the harness (up to 120 lbs with seat belt). She's around 30 lbs now and still in her Britax Marathon, but we'll move her when LO #3 arrives (as DS will be moving into the Marathon and baby #3 will go into DS's Evenflo Symphony).
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My daughter outgrew her harnessed seat for height at 4y 40 lbs, so we moved to a booster then. She is a very mature child, so I was okay with moving her right then. Her sister pushes boundaries and fights rules, so she won't move to a booster until she's older than her sister was, even if that means buying a seat after her radian to extend harnessing. I'm very happy to put a kid in a booster on the early side, but only if the kid is mature enough to use it correctly and be trusted.
I don't think the law anywhere is 8 for a harnessed seat. In fact, very few places have laws requiring 4y/40 lbs (I think that's only law in 3 states). Most recommend harnessing until "appropriate booster age" meaning that whatever guidelines the manufacturer set are acceptable minimums.
I can honestly say that by 8 many kids would be far far too tall to safely use a harnessed seat and there is no safety reason for an averagely developing 6 or 7 year old to ride in a harnessed seat instead of a booster.
I don't want to vote by weight because my DD1 is really tall and super skinny.
She's been in the Frontier85 since she was about 2.5 and we love it! I got it because it has one of the highest height limits on the market, and because she's so tall.
The plan is to keep her in at 5-pt harness until around 1st or 2nd grade. Probably at that point we'll switch her to a regular booster (that I *think* is what the law is, regular booster until age 8 here).
Right now DD1 is 35 lbs at age 4. Maturity-wise, I think she'd almost be ready to switch to a booster, but not quite yet. Up until recently, she still threw some pretty good tantrums in the car and I could totally see her scootching down to the floor had she not been in a harness. Either way though, it'll be a while...
FWIW, I have a friend who has twin 1st graders who are still in the Frontier85, 5pt harness.
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We are not going by weight but by height and age (maturity to handle a regular seatbelt with a high back booster). My girls are going on 4 and they are 31 lbs. and 33 lbs. If I went by weight they would be in a harness until 10 years old. We have them in the Graco Argos 70. I am planning on having them in a harness until they are at least 5 years old. I don't see them being mature enough to be without a harness until they are at least 5. The still sleep in their carseats when we travel and the 5pt. harness will not allow them to slump over as a regular seatbelt would, which is not safe. Also my girls are not even 40 in. in height yet, so they can use a harness for a lot longer (I think my harness goes over 50" in height). I don't see them growing 10" in the next 15 months.
This. DS outgrew it at almost 6 y/o and DD at 4 y/o, both based on height. Both were fortunately over 40 lbs at the time. If DS had outgrown it earlier, I probably would have bought him another harness seat, though, b/c he was not ready for a booster until 5-6 y/o.
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That's actually not true. There is absolutely no evidence that a 5 point harness is safer than a properly used booster seat. In fact, in Sweden they rear face until the child outgrows their seats (different seats, they last until 4-6 depending on the kid) then go straight to a booster without using a 5 point harness. The theory there is that forward facing harnesses make the body too rigid, transferring all the forces of an accident onto the head and neck instead of spreading them out across the body as happens with a 3 point seatbelt. There's a reason racecar drivers need a hans device to tether their helmet to the seat and prevent too much forward motion.
There's a lot of evidence that kids frequently graduate to boosters before they have the maturity to ride safely in one and that that is dangerous. But if a booster is used properly it is every bit as safe as a 5 point harness (and possibly safer in certain conditions).
FYI, overall height is irrelevant to when they will actually outgrow a carseat. It's torso height that's the determining factor. A seat is outgrown for height when either the shoulders go above the top harness slots OR the tops of their ears reach the top of the shell whether or not they've hit the overall height limit for a seat. Some kids will make it to 50 inches, some will outgrow that seat at 40 inches because their height is all in their torso.
This. DD will be in a 5 point as long as possible (IE outgrows due to height). I would be in one if I could.
She's already getting made fun of by her booster seat friends for sitting in a "baby" seat. I need to work on this one.
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penguingrrl, do you have any links to good articles/studies regarding this? I'd love to read more about it to make an informed decision. Not finding a whole lot Googling it though. Thanks
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There actually have not been studies at this point, but there are a lot of experts at car-seat.org who are happy to share knowledge and experience. You can either ask questions or just lurk over there to gain knowledge. Over there there is some debate about when to put kids in a booster, but the debates basically are over when a child is reliably mature enough to handle the responsibility of a booster seat versus you having control over their safety via the harness, so opinions on that seem to vary based on people's personal experiences (someone with a mature, compliant kid will likely say younger; a person whose kid is a bit of a handful will think kids need to be older before they're ready).
Basically, it was very easy to build evidence for RF being far far safer than FF. Real life crash data (compiled over 15 years by the NHTSA) shows that without question children (and adults) who are properly restrained in a RF position have lower instances of serious injury or death in car accidents. At this point in time real life data and crash tests for properly used booster v. 5 point harness show no significant difference in outcome proving one is safer than the other. Part of that, though, is likely because booster seats and high harness height/weight carseats are (relatively speaking) new to the market so there is not enough data from accidents to compile a study comparing the two (which is a very good thing!).
In Sweden (the worlds leading car safety experts) they never use a FF harness and also have the lowest rate of child injury/death in a car in the world. They have different seats that allow children to RF a lot longer than here (55 lb weight limits, very tall shell yet compact design to work in smaller European vehicles). Then they go straight from that to a booster.
The theory behind the RF straight to booster practice is that if the body is rigidly attached to the carseat but the head and neck are moving freely it will transfer all the forces of the accident to the head and neck instead of distributing it evenly across the body as would happen with an adult seatbelt. If you watch YouTube videos on crash tests with boosters it looks scary because the child's body moves a lot more in a booster than a harness, but basically the theory is that the movement allows the body a slower, less sudden stop and that is good.
All of this is moot if the child won't sit correctly, which is why maturity is the most important factor for knowing when your child is ready to move from a harnessed seat to a booster (aside from meeting the minimum height/weight set by the booster manufacturer) and why different kids will be ready at different ages. My older one moved right at 4 (she outgrew her radian for harness height at that point and a frontier does not fit in our only car, so we had no real option aside from specialty harnesses, which was my backup plan if she didn't sit correctly) and was absolutely ready for the move. My younger one will be at least 5 before I move her because she tests the rules and pushes boundaries all the time, so I know I won't be able to trust her as early. Luckily we're getting a bigger car this summer so we'll be able to buy a taller harnessed seat if needed!
Thanks penguin! That all makes sense.
I actually have a new friend who moved here from Sweden (her DH is originally from there, she only lived there a short amount of time) and we started talking about this the other day at playgroup...her DH is a car engineer and I told her I wanted to talk to him about car seat safety! She said he was really into that. They're actually using their Swedish carseats over here somehow, that way her kids will be RF until 4... she mentioned something about her DH bolting them to their car so they would be installed "properly" (I use that term loosely in this situation
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TTC since 8/13 - diagnosed difficulty conceiving due to LP defect. Took vitamin B and Vitex Berry to help lengthen.
BFP 2/14 - Missed M/C found at 8.5 weeks. D&C at 9w2d. Partial Molar Pregnancy.
BFP 11/14
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my boys will be in a 5-pt harness as long as they fit in their Sunshine Radian 80s...which goes up to 80lbs...
Griffin is about to turn 5 and he's 50lbs now, so we've got some time for sure.
Okay, so technically it is illegal to use a Swedish seat in the US (or a Canadian seat for that matter, or a British seat in Sweden... each country has its own standards so carseats can't cross borders). That said, over on car-seat.org many members have imported Swedish seats to use because of the higher RF capabilities. And there have been rare times that people actually got waivers from the NHTSA to import (one case was a child who was severely injured in a FF seat at 18 months and his parents needed him to be RF as long as possible while the injury healed, so he was able to get a 55 lb seat), although it takes a really extreme case for that.
That said, it's unlikely they'll get "caught" or get in trouble for it. In a routine traffic stop it's unlikely the officer will have any clue what seat s/he is looking at (in fact, my friend had an officer yell at her to turn around an 18 month old because "the law is 1 year and 20 lbs" was the extent of the knowledge), so they wouldn't be ticketed then. If they had an accident there could theoretically be an issue, but that's unlikely.
As far as the installation, she might be referring to a prop, which I think is on the britax multitech and it prevents overrotation down with a larger/heavier kid. That might actually be bolted to the car (I'm not sure, I've seen pics of installs with them but haven't seen one in person).
Ditto this. I'm sure my boys will outgrow the Radian for height long before they ever get to the weight limit, though.
We have a Britax Frontier for DD1 and plan to keep her in it as long as she fits. She is nearly 4 1/2 now and still under 35 lbs. so most likely she'll outgrow it by height before weight.
Although another consideration for us is that the Britax Marathon we're now using for DD2 expires next summer, so we will need a new car seat for her which may affect our decision as to when to switch DD1 to a booster. If she still has plenty of room in the Frontier, we'll just buy a second one for DD2, but if DD1 is close to outgrowing it, we may use that for DD2 and switch DD1 to a booster then.
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M will be 5 this summer and weighs 37lbs. We have no plans to move her to the booster seat until she's stoat least 6. She will most likely outgrow her Nautllus in height before weight.