DIONO Radian 3RXT Latch and Vogue Latch All in One Convertible Car Seat

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  • $299.99
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The Original 3 across Car Seat

Enjoy the journey with our Diono radian® 3RXT all-in-one convertible car seat, lovingly engineered to always overprotect. Your child’s safety is our top priority, with premium, innovative features the Diono radian® 3RXT is sleek and stylish with all the practicalities that you could possibly need like a steel alloy frame, aluminum reinforced side walls, energy absorbing EPS foam, and memory foam to put your mind at ease as your little one travels safely in style and comfort.

The reinforced adjustable head support provides additional side impact protection. And, if you want to avoid those bulky car seats, look no further as the sleek design of the Diono radian® 3RXT allows for a 3-across fit or plenty of room for passengers. We’ve thought of everything so you don’t have to.

Product Specs:

5-45 lbs / 2.3-18.1 kg

20-65 lbs / 9.1-29.5 kg

Booster mode
50-120 lbs / 22.7-45.4 kg

Seated torso height
8.25-17″ / 21-43.2 cm

Overall maximum height
up to 57″ / 144.8 cm

27.68lbs / 12.55kg

Care and Maintenance:

Cover machine washable at 86F/30C/Cold

DIONO Radian® 3RXT Vogue Latch Download Product Manual


Tips and Tricks:

Airline Use:

  • unfold the Diono car seat before boarding the plane and ask the flight attendant for seat belt extenders
  • make sure to install the car seat next to the window so passengers can get by in case of an emergency
  • make sure to take the slack out of the seat belt extender before connecting to the airplane seatbelt


Rear Facing Installation:

  • first secure the detachable base and slide in the locking mechanism
  • adjust the harness to be the proper height for rear facing
  • adjust the head support to fit your child properly


Folding and Unfolding:

  • to unfold: lay the car seat down on a stable flat surface and undo the velcro strap, tuck it in behind the fabric and open seat until clicked and locked.
  • to fold: remove the red velcro strap from behind the fabric and loosen up the harness as much as possible so they are at the top of the car seat. release the lever at the bottom of the car seat and push seat inward - secure the top with the red velcro strap.

Right For Newborn:

  • whether you buy an infant only car seat or an all-in-one convertible car seat, both car seats have to meet the same standard
  • seats like the Diono all-in-one convertible car seats come with an infant cushion insert to properly fit your child in the harness
  • all-in-one convertibles are more economical - they have a lot of room for growth for your growing child


Why Parents Chose Diono:

Solid Side Protection:

Additional side impact protection with aluminum reinforced head support and energy absorbing EPS foam.

Diono Solid Side Protection - ANB Baby

Travel the World:

Super portable, folds flat with available carry straps for easy travel and transporting.

Diono Travel the World - ANB Baby

Stylish and Snug:

Modern, versatile cover in soft, premium fabric for a comfortable ride everyday – it’s absorbent, easy to remove and machine washable too!

Diono Stylish and Snug - ANB Baby


Easy Installation:

Unique SuperLATCH™ system makes installation quick and easy. A versatile top tether for both rear and forward-facing unique car seats.

Diono Easy and Quick Installation - ANB Baby


can the radian 3RXT fit 3-across in my car?

Most likely, yes, as long as you have 51” (129.6cm) in the back row from vehicle armrest to armrest. It may be necessary to install all three using the vehicle seat belt system.

can the harness straps be cleaned?

Yes, we recommend using a damp cloth with a solution of water and baking soda to wipe the straps clean. They cannot be saturated in any liquid, or they will need to be replaced. Replacement harness straps can be purchased on our website.

can I use the radian 3RXT from birth?

Yes, the weight limits on all our convertible car seats starts at 5lbs. The newborn must also meet a length requirement where the top of their shoulders reaches the lowest harness slot on the seat.

are the harness pads and buckle pads required on my seat?

Yes, they are required while your child is sitting in forward-facing. They are optional but recommended while sitting in rear-facing. The center buckle pad is required at all times.

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