What are the weight and height limits for the Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat?

The Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat supports children in three stages: forward-facing harness mode for 26.5-65 lb (up to 49 inches), highback booster for 40-100 lb (43-57 inches, at least 4 years old), and backless booster for 40-120 lb (43-57 inches, at least 4 years old). These car seats accommodate a wide range of sizes for growing children.

How does the InRight LATCH system work on the Graco Nautilus 2.0 LX car seat?

The InRight LATCH system on the Graco Nautilus 2.0 LX harness booster provides a one-second attachment with an audible click, ensuring secure installation of the child car seat. This easy LATCH installation method helps parents achieve proper car seat positioning and enhances vehicle seat compatibility.

What safety standards does the Graco Nautilus 2.0 LX meet or exceed?

The Graco Nautilus 2.0 LX 3-in-1 booster seat is engineered and crash tested to meet or exceed US standard FMVSS 213. It is also side-impact tested for occupant retention with the built-in 5-point harness system and includes EPS energy-absorbing foam for impact management, aligning with child passenger safety guidelines.

How does the Simply Safe Adjust Harness System benefit growing children?

The Simply Safe Adjust Harness System on the Graco Nautilus 2.0 LX allows the headrest and harness to adjust together in one motion, eliminating the need for rethreading. This adjustable harness system supports proper fit for toddlers and older children, ensuring ongoing child car seat comfort and security.

What is the recommended lifespan for the Graco Nautilus 2.0 LX booster seat?

The Graco Nautilus 2.0 LX harness booster seat should be discontinued and discarded 10 years after the date of manufacture. This car seat expiration guideline aligns with recommendations for child restraint systems and ensures continued compliance with safety standards for infant and child car seats.

What features enhance comfort in the Graco Nautilus 2.0 LX 3-in-1 car seat?

The Graco Nautilus 2.0 LX offers a 4-position recline, quilted soft goods, and a one-hand, 10-position adjustable headrest for customizable comfort. Additional features include two easy-to-clean cup holders, supporting a comfortable and convenient ride for children using this harness booster or booster seat.

When should a child transition from the harness to the booster mode in the Graco Nautilus 2.0 LX?

Children should use the built-in harness system of the Graco Nautilus 2.0 LX forward-facing car seat as long as possible, until reaching the maximum weight or height for the harness (65 lb or 49 inches). Afterward, transition to the belt-positioning booster seat mode, following AAP and NHTSA car seat guidelines.

What crash protection technologies are included in the Graco Nautilus 2.0 LX?

The Graco Nautilus 2.0 LX 3-in-1 car seat features ProtectPlus Engineered technology for protection in frontal, side, rear, and rollover crashes. The steel-reinforced frame and EPS energy-absorbing foam further enhance impact protection, supporting advanced child passenger safety in booster and harness modes.

How does the Nautilus 2.0 LX compare to the Nautilus SnugLock Grow?

Both are similar multi-stage seats; the LX uses InRight LATCH (push-on connectors) and is lighter, while the SnugLock Grow has a belt tensioner for seatbelt installs and may feel sturdier, but the LX is easier to move between cars.

Is the Nautilus 2.0 LX good for tall kids?

It's fine for average-height kids but may be outgrown sooner than older Nautilus models (harness mode up to 49" or 18.5" top slot); some users prefer the Nautilus 65 for taller children.

Can the Nautilus 2.0 LX fit in a small car?

It is relatively compact (18.5-19" wide) and fits many smaller cars, but some users find it still bulky front-to-back; a test fit is recommended.

Graco

Graco Nautilus 2.0 LX 3-in-1 Booster Car Seat (Hex 2.0)

4.7/5 (713)

$149.99$219.99-32%

Out of Stock

The Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat is a multi-stage child restraint that transitions from a forward-facing harness (26.5–65 lb, up to 49 inches) to a highback booster (40–100 lb, 43–57 inches, minimum age 4 years) and finally to a backless booster (40–120 lb, 43–57 inches). It is designed for children from toddler through big kid stages, providing a single seat that adapts as the child grows. Key technical features include a steel-reinforced frame, InRight LATCH for one-second push-on attachment, a no-rethread Simply Safe Adjust harness and headrest (10 positions), 4-position recline, dual cup holders, and side-impact testing according to FMVSS 213a. Dimensions are 19.4 inches wide, 19.7 inches deep, and 26 inches high; weight is 17.4 lb. This unit is a floor model with minor cosmetic scuffs and may ship without the original box; it was manufactured in 2024 or 2025.

Color: Hex
Material: quilted soft goods; steel-reinforced frame; EPS energy-absorbing foam; metal and plastic parts
Style: modern, contemporary
Category: Baby & Toddler > Baby Transport > Baby & Toddler Car Seats

View on merchant site JSON

GTIN: 047406185870
MPN: GRACO-047406185870-047406191338-FLOORMODEL

Specifications

Graco Nautilus® 2.0 LX 3-in-1 harness booster car seat converts from a forward-facing 5-point harness (26.5-65 lb) to a highback booster (40-100 lb) and a backless booster (40-120 lb). Features InRight™ LATCH, Simply Safe Adjust™ no-rethread harness, steel-reinforced frame, EPS energy-absorbing foam, and ProtectPlus Engineered™ crash protection.

3 modes of use (forward-facing harness, highback booster, backless booster); InRight™ LATCH one-second audible attachment; Simply Safe Adjust™ no-rethread harness and adjustable headrest; steel-reinforced frame; EPS energy-absorbing foam; 4-position recline; one-hand 10-position headrest; 2 cup holders; side-impact tested with built-in 5-point harness.

Color: Hex
Material: quilted soft goods; steel-reinforced frame; EPS energy-absorbing foam; metal and plastic parts
Secondary: metal, plastic
Style: modern, contemporary
Gender: unisex
Age Group: kids
Condition: new
Dimensions: 19.7 x 19.4 x 26 in
Category: Baby & Toddler > Baby Transport > Baby & Toddler Car Seats

Additional Attributes

3-in-1 harness booster
Forward-facing harness: 26.5-65 lb (up to 49 in)
Highback booster: 40-100 lb (43-57 in, at least 4 years old)
Backless booster: 40-120 lb (43-57 in, at least 4 years old)
No-rethread Simply Safe Adjust™ harness system (headrest and harness adjust together)
InRight™ LATCH one-second attachment with audible click
Steel-reinforced frame
4-position recline
One-hand, 10-position adjustable headrest
2 easy-to-clean cup holders
Graco® ProtectPlus Engineered™ (protection in frontal, side, rear, and rollover crashes)
Side-impact tested according to FMVSS 213a with built-in 5-point harness system
EPS energy-absorbing foam for impact management
Engineered & crash tested to meet or exceed US standard FMVSS 213
Rigorously crash tested to meet or exceed US safety standards
Quilted soft goods and updated, sleeker design
Stop using and discard 10 years after date of manufacture

Image Analysis

6 images

01high: Child car seat with high back, five-point harness, quilted black fabric pad, two cup holders, and molded plastic base shown on plain white background.
OCR: GRACO. NAUTILUS 2 DLX. Warning label text block
black quilted fabric seat pad with hex stitch patternpadded headrestintegrated shoulder harness padsfive-point harness with chest clipcentral buckle with red release buttoncontoured high back shellmolded plastic basetwo molded cup holdersfold-down armrestsside wings for head supportfabric cover with stitched seamsvisible sewn belt routing slotsprinted warning label panel on basestitched seat belt guide
02high: Studio product image showing three child car seat configurations side by side labeled forward-facing harness, highback booster, and backless booster with children seated to illustrate each mode.
OCR: 3 Modes of Use. Forward-Facing Harness 22-65 lb. Highback Booster 40-100 lb. Backless Booster 40-120 lb
forward-facing harness seathighback booster seatbackless booster seatfive-point harness strapsadjustable headrestcup holderpadded seat cushionrigid plastic shellblack fabric upholsterywhite studio backgroundblue floor areaeven studio lightinginstructional product layoutchildren seated for scale
03high: Close-up of a hand attaching a black LATCH connector with a red release button and metal hook to a beige car seat; blue instructional banner with text at the bottom.
OCR: InRight LATCH provides an easy, one-second attachment to help ensure secure installation
human right handbeige perforated car seat upholsterybeige smooth car seat surfaceblack plastic LATCH connector housingred release button on connectorsilver metal LATCH hookblack woven strap attached to connectorseat crevice / gap between seat back and seat bottomlight blue informational banner at bottomdark blue headline text in bannerblack body text in bannerside door interior panel visible in background
04high: Front-facing studio product shot of the upper portion of a black padded child car seat with hexagon quilted center panel, visible harness straps, and a headrest bearing a logo. A light blue banner with marketing text appears at the bottom.
OCR: Updated, sleeker design with quilted soft goods for a more modern look. GRACO
black quilted fabrichexagon quilted patternpadded headrestshoulder belt slotspadded harness strapscenter buckle coverplastic strap guidesembroidered logo on headrestfabric side tagstudio white backgroundsoft lightingproduct shot crop showing upper seat
05high: Front-facing studio photo of a black Graco child car seat with padded quilted back, adjustable headrest and harness shown with a blue up-down adjustment arrow graphic and a hand on the headrest; promotional text banner at bottom.
OCR: Headrest and harness adjust together with no-rethread Simply Safe Adjust harness system
padded quilted seat backadjustable headresttwo shoulder harness strapscenter buckle with red releasechest clipcup holder on right sidecup holder on left sideplastic armrestsGraco logo on headrestblue up-down adjustment arrow graphiclight blue promotional banner at bottomhuman right hand and forearmtan long sleeve shirt on armwhite studio backgroundfront-facing product shotwell-lit lighting
06high: Front-facing child car seat photographed in a studio style on a light gray background with informational callouts and a visible QR code.
OCR: 10-position adjustable headrest. Open-loop belt guides. 2 cup holders. 4-position recline. Easy access to installation instructions and more. Steel-reinforced frame. ProtectPlus Engineered
child car seat front-facingadjustable headrest10-position headrest indicatorfive-point harnessharness chest clipharness buckle with red releaseopen-loop belt guidestwo cup holders4-position recline indicatorsteel-reinforced frame calloutProtectPlus Engineered calloutQR code graphichexagon quilted seat patternGraco logo on headrestblack fabric main bodydark gray seat patternlight gray studio backgroundblue callout lineswhite instructional text labels

Brand PDP Lookup

Brand: Graco
URL: https://www.gracobaby.com/shop/car-seats/harness-booster-car-seats/nautilus-2.0-lx-3-in-1-harness-booster-car-seat/SAP_2216096.html

Nautilus® 2.0 LX 3-in-1 Harness Booster Car Seat

Also Seen Here

5 retailers

target.com
high
Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat - Hex
Target
View listing →
macys.com
high
Graco Nautilus® 2.0 LX ft. InRight™ LATCH Booster Car Seat
Macy's
View listing →
albeebaby.com
high
Graco Nautilus 2.0 LX ft. InRight LATCH 3-in-1 Harness Booster Car Seat - Hex
Albee Baby
View listing →
staples.com
high
Graco Nautilus 2.0 InRight LATCH 3-in-1 Harness Booster Car Seat, Hex (2216096)
Staples
View listing →
kohls.com
high
Graco Nautilus 2.0 LX InRight LATCH 3-in-1 Harness Booster Car Seat
Kohl's
View listing →

Documents & Data

Customer Reviews

713 total

4.7

713 reviews · out of 5

Amazing!

★★★★★RuddyS2026-03-06

Amazing product and quality, Comfy and soft for my baby

Easy to load

★★★★★JPru2026-03-02

Fits great and easy to load in the rear truck seat.

excellent

★★★★★Itsmemario2026-02-17

Has been working out great for me, very happy with purchase!

Do not buy

★★★★★Anamv2026-02-05

I was sent a car seat that was three years past its manufacture date, Graco states it's "out of their control how long products are sitting on their shelf's" . At this price, selling a three year old car seat is insane granted that it's good 6-10 years so that makes the lifeline shorter. On top of that, I have yet to get a refund after returning. Do not buy this car seat from this website.

We love it

★★★★★Cait13312026-01-19

I love how heavy duty it feels, but it’s also not too heavy to switch between cars regularly. My daughter loves it because of her big girl seat and we both absolutely love the color.

Must buy!

★★★★★Freeze2025-12-24

Great quality nice color and easy assembly. My daughter says it’s comfortable

Stable, secure, colorful.

★★★★★Andrew B2025-11-10

Stable, secure, kid loves the color. As easy to install as any other car seat.

Great carseat - old inventory

★★★★★grammyabc1232025-11-06

Car seat is fine. But production date is several years old. So if you are thinking of using it for its full recommended life, it is already old.

Q&A

8 answered

What are the weight and height limits for the Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat?: The Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat supports children in three stages: forward-facing harness mode for 26.5-65 lb (up to 49 inches), highback booster for 40-100 lb (43-57 inches, at least 4 years old), and backless booster for 40-120 lb (43-57 inches, at least 4 years old). These car seats accommodate a wide range of sizes for growing children.
How does the InRight LATCH system work on the Graco Nautilus 2.0 LX car seat?: The InRight LATCH system on the Graco Nautilus 2.0 LX harness booster provides a one-second attachment with an audible click, ensuring secure installation of the child car seat. This easy LATCH installation method helps parents achieve proper car seat positioning and enhances vehicle seat compatibility.
What safety standards does the Graco Nautilus 2.0 LX meet or exceed?: The Graco Nautilus 2.0 LX 3-in-1 booster seat is engineered and crash tested to meet or exceed US standard FMVSS 213. It is also side-impact tested for occupant retention with the built-in 5-point harness system and includes EPS energy-absorbing foam for impact management, aligning with child passenger safety guidelines.
How does the Simply Safe Adjust Harness System benefit growing children?: The Simply Safe Adjust Harness System on the Graco Nautilus 2.0 LX allows the headrest and harness to adjust together in one motion, eliminating the need for rethreading. This adjustable harness system supports proper fit for toddlers and older children, ensuring ongoing child car seat comfort and security.
What is the recommended lifespan for the Graco Nautilus 2.0 LX booster seat?: The Graco Nautilus 2.0 LX harness booster seat should be discontinued and discarded 10 years after the date of manufacture. This car seat expiration guideline aligns with recommendations for child restraint systems and ensures continued compliance with safety standards for infant and child car seats.
What features enhance comfort in the Graco Nautilus 2.0 LX 3-in-1 car seat?: The Graco Nautilus 2.0 LX offers a 4-position recline, quilted soft goods, and a one-hand, 10-position adjustable headrest for customizable comfort. Additional features include two easy-to-clean cup holders, supporting a comfortable and convenient ride for children using this harness booster or booster seat.
When should a child transition from the harness to the booster mode in the Graco Nautilus 2.0 LX?: Children should use the built-in harness system of the Graco Nautilus 2.0 LX forward-facing car seat as long as possible, until reaching the maximum weight or height for the harness (65 lb or 49 inches). Afterward, transition to the belt-positioning booster seat mode, following AAP and NHTSA car seat guidelines.
What crash protection technologies are included in the Graco Nautilus 2.0 LX?: The Graco Nautilus 2.0 LX 3-in-1 car seat features ProtectPlus Engineered technology for protection in frontal, side, rear, and rollover crashes. The steel-reinforced frame and EPS energy-absorbing foam further enhance impact protection, supporting advanced child passenger safety in booster and harness modes.

Reddit Insights

5 threads · r/CPST, r/Mommit, r/Preschoolers, r/Parenting

Reddit users generally view the Graco Nautilus 2.0 LX as a reliable, easy-to-install harnessed booster with great longevity, though some prefer older Nautilus models for additional safety features or find it bulky for smaller vehicles.

positive sentiment100% match

Overall positive sentiment due to ease of use, longevity, and trusted Graco quality; some mixed feelings when comparing to older Nautilus models with more features.

Themes

Ease of installation and usepositive

Comparison with older Nautilus models (safety features)mixed

Longevity and multi-stage usepositive

Fit in smaller carsnegative

Use Cases

Transitioning from convertible car seat to harnessed booster for toddlers/preschoolers
Long-term seat from harness to backless booster for growing kids

Watch Out For

mediumLacks a belt lock-off for seatbelt install, which older models had; may require a locking clip in some vehicles.

mediumHarness height limit (18.5-19") may be outgrown sooner than expected for tall/long-torsoed kids.

lowMade in China, while some older Nautilus models were US-made, leading some parents to perceive a quality difference.

mediumMay not fit well in compact cars when rear-facing older siblings' seat is installed.

Community Q&A

How does the Nautilus 2.0 LX compare to the Nautilus SnugLock Grow?: Both are similar multi-stage seats; the LX uses InRight LATCH (push-on connectors) and is lighter, while the SnugLock Grow has a belt tensioner for seatbelt installs and may feel sturdier, but the LX is easier to move between cars.
Is the Nautilus 2.0 LX good for tall kids?: It's fine for average-height kids but may be outgrown sooner than older Nautilus models (harness mode up to 49" or 18.5" top slot); some users prefer the Nautilus 65 for taller children.
Can the Nautilus 2.0 LX fit in a small car?: It is relatively compact (18.5-19" wide) and fits many smaller cars, but some users find it still bulky front-to-back; a test fit is recommended.

Compared To

vs Graco Nautilus SnugLock Grow

Nautilus 2.0 LX is lighter and easier to install with InRight LATCH, but SnugLock Grow has a belt tensioner for easier seatbelt install; both have similar longevity but SnugLock Grow may feel more premium.

vs Graco Nautilus 65 (older model)

Nautilus 65 is bulkier and has higher harness slots, preferred for taller/larger kids; Nautilus 2.0 LX is more compact and modern but loses some harness height.

vs Chicco MyFit

Chicco MyFit is recommended as an alternative if Nautilus 2.0 LX doesn't fit well in smaller cars; both are high-quality harnessed boosters.

Source Threads

Comparison discussion between Graco Nautilus SnugLock Grow and Nautilus 2.0 LX
User asks about differences between Nautilus SnugLock Grow and Nautilus 2.0 LX. Responders note: Nautilus 2.0 LX uses InRight LATCH (simple push-on connectors), while SnugLock Grow has a belt tensioner for easier seatbelt install. LX is lighter and easier to move, but SnugLock Grow may feel higher quality. Both are safe; choice depends on preferred install method.
r/CPSTView thread →
Mom asking for booster recommendation; Graco Nautilus 2.0 LX suggested
Poster asks which seat to get for a 4-year-old. Multiple comments recommend Graco Nautilus models, specifically the 2.0 LX, praising its ease of installation, no-rethread harness, and compact design. One user says: 'We have the Nautilus 2.0 LX and love it. Super easy to install and adjust.'
r/MommitView thread →
Help picking a harnessed booster; Nautilus 2.0 LX considered
Parent looking for a harnessed booster for a 3-year-old. Several suggestions include Graco Nautilus 2.0 LX for its longevity, ease of use, and FAA approval. A comment states: 'I have the Nautilus 2.0 LX and it's great. Goes from harness to high back to backless. Easy to clean too.'
r/CPSTView thread →
Preschooler car seat recommendations; Nautilus 2.0 LX discussed
User asks for seat recommendations for a small SUV. Many recommend Graco Nautilus 2.0 LX for its slim width (fits 3-across sometimes) and multi-stage use. One parent shares: 'We have the Nautilus 2.0 LX in our Honda CR-V. It fits well, and my 5-year-old is comfortable. Easy to install with LATCH.' Another suggests Chicco MyFit as a pricier alternative.
r/PreschoolersView thread →
Feedback on car seat situation including Nautilus 2.0 LX in small car
Poster has a Nautilus 2.0 LX in a compact SUV and finds it fits but is snug front-to-back when rear-facing another seat. Discussion reveals that older Nautilus models (like Nautilus 65) had higher harness slots (about 18.5-19" top slot) and some parents prefer them for taller kids, but the 2.0 LX is more compact and modern. One comment: 'The 2.0 is okay but I miss the belt lock-off my old Nautilus had.'
r/ParentingView thread →