Graco Nautilus™ 3-in-1 Car Seat



3-in-1 car seat

Is a five-point harness car seat from 20-65 lbs that converts to a belt-positioning booster from 30-100 lbs and finally converts to a backless booster from 40-100 lbs.

Top Rated

By leading consumer magazines and publications.

SafeSeat Engineered

To meet or exceed U.S. safety standards.

Side-impact tested

In addition to meeting or exceeding all applicable US safety standards, the Nautilus car seat has been side impact tested for occupant retention solely with the built-in 5 point harness system.

EPS, energy absorbing foam

For effective impact energy management.

Steel-reinforced frame

Provides strength and durability for years of smart utility.

3-position recline

Helps keep your growing child comfy on your many journeys together.

One-hand, adjustable headrest

Easily adapts to your growing toddler’s needs, helping to keep her secure in her travels.

Open-loop belt guides

Help you correctly position your vehicle’s seat belt.

Contoured armrests

With cup holder and large, easy-access storage pockets provide built-in comfort and convenience.

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LATCH Installation

Click on the numbered tabs to the right to view additional Installation videos.

2 - Seatbelt Installation
3 - Without Harness Installation
4 - Backless Installation



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Front View

Front View
Angled View
Angled View Without Harness
No Back



Weight: 26 lbs
Dimensions: 29H x 20W x 22D" (head rest in lowest position)


  • Machine-washable seat cushion

Recommended Use

  • 20- 65 lbs 5-point harness
  • 30-100 lbs highback booster
  • 40-100 lbs backless booster
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