Radian 3RXT Safe+

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The original 3 across All-in-One Car Seat just got better. Upgraded with 18 improvements from the award-winning Radian® 3RXT, the Diono Radian® 3RXT Safe+® features Diono Safe+® engineering, Safe+® anti-rebound panel and advanced Safe+® side impact protection for complete protection from birth to booster 4 - 120 lb / 1.8 - 54 kg. From baby’s first journey the Radian® 3RXT Safe+® provides complete rear-facing protection with a Safe+® newborn travel high wedge and Safe+® 2-in-1 infant positioning liner for a custom fit from 4 lb / 1.8 kg. As your child grows the Safe+® steel anti-rebound bar increases stability and reduces rebound rotation by up to 50%, so you can keep them in a safe rear-facing convertible car seat for longer (up to 50 lb / 22.7 kg). As both a rear and forward-facing convertible car seat, the Radian® 3RXT Safe+® protects as they grow, with Safe+® easy adjust 12 position headrest that offers a 22% increase in occupancy range from the Radian® 3RXT. As they grow the Radian® 3RXT Safe+® provides 6 layers of Safe+® side impact protection without compromising the famous Radian® 3 across slim fit in most midsize vehicles. All these great features have been combined with Safe+® engineering, with the Radian 3RXT Safe+® All-in-One Convertible Car Seat subjected to a combination of the most rigorous crash tests to ensure the safest seat possible. Parents can also expect the travel friendly traits Diono is famous for, including convenient fold and FAA approval for use on an aircraft. So, no matter where you go you can take Diono safety with you.

More Information
Model Radian 3RXT Safe+
Rear Facing Car Seat Yes
Forward Facing Car Seat Yes
Cup Holder Included? Yes
Booster Car Seat Yes
Removable Backrest No
Car Seat Type All-In-One Car Seats
Removable Seat Fabric Yes
Washable Fabric Yes
LATCH System Yes
Aircraft Certified Yes
Transport Canada Certified Yes
Colour Black Jet, Blue Sky, Grey Slate, Purple Plum, Red Cherry
Country of Origin Designed and engineered in the USA. Manufactured in China
Dimensions 28.5" (H) x 17" (W) x 16" (D)
Minimum Weight Rear Facing 4lb | Forward Facing 22lb | Booster 40lb
Maximum Weight Rear Facing 50lb | Forward Facing 65lb | Booster 120lb
Car Seat Weight 30.6lb
Manufacturer's Warranty 12 months standard warranty
Car Seat Useful Life 10 Years from the day of purchase
Materials + Care Cover: Machine wash cold, line dry. Shell and Components: Spot clean
  • 18 UPGRADES FROM RADIAN® 3RXT - Includes Safe+® easy adjust 12 position headrest, 6 layers of Safe+® Side impact protection and Safe+® testing.
  • COMPLETE REAR-FACING PROTECTION - Safe+® steel anti-rebound bar reduces rebound rotation by up to 50% for extended rear-facing travel up to 22.7 kg
  • SAFE+® ENGINEERING - Features a unique combination of engineering features and testing to the highest safety standards to ensure we have the safest seat possible.
  • 10 YEARS ONE CAR SEAT - From rear-facing to forward facing Radian 3RXT Safe+® adapts as your child grows from birth to booster. Suitable from 1.8 - 54 kg / 4 - 120 lb.
  • THE ORIGINAL RADIAN® 3 ACROSS: Built with our famous Radian® slim fit convertible design for a 3-across option only with Diono Radian® combinations, without compromising child or passenger comfort. Feel safe having your children secure in the backseat.
  1. Rear facing experience
    Purchased two diono for 1.5yo (rear facing) and infant when out of bucket seat. Rear facing is longer than expected (compared to my graco convertible car seat) so put behind my passenger seat. I even used the car seat angle adjuster accessory to give the passenger a bit more room.

    However the large headrest of the car seat doesn’t allow you to see your toddlers face a mirror that rests on the backseat headrest. And HUGE safety concern that outweighs the safety feature itself: the large headrest of the car seat 100% blocks that back passenger window so that you are not able to check your blind spot when switching lanes.

    Will be moving the toddler to behind the driver seat this weekend; will be uncomfortable for me but that passenger window for blind spot checks is priority. Also will switch her to forward facing in a few months which is sooner than I would like (bc I can’t have two rear facing car seats for safety reasons).

    Also my graco (in our smaller vehicle) has a snug lock system giving a 100% indicator that the installation straps are tight (not recommending graco but love this feature). Diono you are just tightening straps - some vehicles need to tighten more or less but there may not be enough room- and I think an additional tightening feature would be beneficial.

    Pros are that this seat is super heavy duty, feels safe, width, and easy to tighten straps for child.

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  2. happy with the purchase so far
    I was shopping for a convertible car seat for a while and jumped at purchasing this new version of the Radian 3RXT Safe+ since it had similar safety features to the QX without the additional price and it was on sale during Westcoastkids' daily deals. My child seems comfortable with the car seat so far. I also liked how Westcoastkids allowed you to know the manufacturer date before shipping if you ask in the notes when purchasing online as that was important to me.

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  3. Love
    We bought this as a second to our 3QX. With the new Safe+ updates, it is almost identical in all the safety features. We love both and the safety it provides!

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