Back pain in RXT?


Well-known member
Has anyone else had trouble with the Diono RXT and back pain in a RFing toddler? We had a 4 hour trip and the 3½yo was crying in pain. He's had bruising there before, but this is the first time that I realized that it may be from the RXT. Red strap is tucked away. I'm a little baffled. I started looking at other seats and I'm not terribly impressed with the padding. He moved from a Britax Marathon that expired and never once complained.


Wow, I have never noticed that with my kids! Poor guy! From the bruising, can you tell what part of the seat is bothering him?


New member
Yes, my ds had this too in the XTSL. I never did figure out what the exact cause was. From what he could articulate, the flat straight back of that seat made a pressure point on a spot on his back. He was around 3.5 when he started complaining. He preferred 'C' shaped seats.


CPSDarren - Admin
Staff member
I also have not observed this personally and have no other advice to give if there is nothing obvious poking or pressing on the child. I also apologize that your thread got buried without a response for so long:-( Also, I moved this thread to Carseat Chat for more visibility.


New member
My DD has never complained of back pain from her RXT and we have done 3 12-17 hour each way trips and countless 5 hour each way trips. I have on occasion noticed a small red spot on her back and often wondered if it bothered her but the second I ask I'll never get her in the seat again.

Could you try a small hand towel folded once behind that spot on his back to give it a little more cushioning but not be compressible in a crash?


Well-known member
Funny that this got bumped, he just started complaining again last week. We had 20 more minutes to go in our 4 hour trip and we had to stop and hang out at Target. I'm going to grab a picture next time and see if you have any ideas. For now, a sweatshirt seems to help give him a smidge more padding.


New member
We never had that seat, but my boys all have spines that bow slightly out at the bottom. Maybe yours does too? I think anything hard against their backs would hurt more and create bruising.

I remember when looking at car seats most of them really were disappointing in the seat/lower back padding. Britax was fully padded all the way so that is usually what we went with. I'm not sure why they often skimp on padding for seats holding children.

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