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4.4 out of 5 Customer Rating
Tranzitions™ 3-in-1 Harness Booster is rated 4.4 out of 5 by 1078.
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20% Off! Applied In Cart!
Out of Stock

Tranzitions™ 3-in-1 Harness Booster

4.4 out of 5 Customer Rating
Tranzitions™ 3-in-1 Harness Booster is rated 4.4 out of 5 by 1078.
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$139.99
20% Off! Applied In Cart!
*Up to 25% Off Select Items Sitewide. Discount shown in cart. Offer valid from September 20, 2026, until 11:59 p.m. ET on October 3, 2026, and only at www.gracobaby.com. Offer cannot be applied to telephone orders or redeemed for cash. Products shown on www.gracobaby.com but not sold through www.gracobaby.com are excluded from this offer. Quantity limits may apply. Not combinable with other promotions. No rain checks. Subject to product availability. Offer valid in the U.S. only.
Final Sale: may not be returned or exchanged
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$139.99
Final Sale: may not be returned or exchanged

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Product Details

Description
The Graco® Tranzitions™ 3-in-1 Harness Booster is designed to grow with your child and go with you, wherever your journeys take you—from car to carpool and beyond. This lightweight car seat transitions seamlessly from harness booster (26.5-65 lb) to highback booster (40-100 lb*) to backless booster (40-100 lb) and features the Simply Safe Adjust™ Harness System, which adjusts your harness and headrest to 8 height positions, with no rethreading. It features two removable cup holders to keep your child happy, and a machine washable seat pad, body insert, and harness covers. *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb
Features
  • 3-in-1 harness booster helps protect your child, from toddler to youth
  • Grows with your child from forward-facing harness (26.5-65 lb) to highback booster (40-100 lb*) to backless booster (40-100 lb) *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb
  • No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion
  • Lightweight, portable seat is ideal for busy, active parents
  • One-hand, 8-position adjustable headrest grows with your child
  • 2 easy-to-clean cup holders keep your child's drinks and snacks close at hand
  • Open-loop belt guides help properly position your vehicle’s seat belt
  • Seat pad, body support, and harness covers are comfortable and machine washable
  • Graco® ProtectPlus Engineered™ to the newest testing standards for side and frontal impact, and beyond—because the safety of your child shouldn’t stop at the standard
  • Meets or exceeds the child restraint criteria for a frontal crash test under the US FMVSS 213
  • Side-impact tested for occupant retention solely with the built-in 5-point harness system
  • Rear-impact tested based on the European Rear-Impact Crash Pulse
  • Tested to Graco's RollSafe™ testing standard based on the European rollover testing procedure
  • Be sure to check your local and state laws, as well as AAP and NHTSA recommendations, for car seat usage
Recommended Use
Forward-Facing Harness: 26.5-65 lb, up to 49"; Highback Booster: 40-100 lb, 43-57", at least 4 years old; Backless Booster: 40-100 lb, 43-57", at least 4 years old
STOP using this child restraint and throw it away 7 years after the date of manufacture.
When forward-facing, children should use a car seat with a built-in harness system for as long as possible until they reach the maximum forward-facing weight or height for their car seat. At that point, children should ride in a belt-positioning booster seat. A booster is no longer needed once the vehicle seat belt fits properly, typically when they reach 4 feet 9 inches tall and are between ages 8-12. Be sure to check your local and state laws, as well as AAP and NHTSA recommendations, for car seat usage.*
*Graco Supports the American Academy of Pediatrics and National Highway Traffic Safety Administration's Car Seat Guidelines. Visit our safety page for information on car seat usage recommendations.
Specifications
    • Color: Eloise
    • Model#: 2217738
    • Product Width: 19 in
    • Product Height: 26.5 in
    • Product Depth: 17.4 in
    • Product Weight: 14 lb
    • Car Seat Weight With Base: 20 lb
    • Car Seat Depth: 17.4 in
    • Car Seat Height: 26.5 in
FAQ
What are the weight and height limits for each mode?
Tranzitions™ grows with your child across three modes. Forward-facing harness is for 26.5–65 lb, up to 49"". Highback booster mode is for 40–100 lb, 43–57"", and at least 4 years old. Backless booster mode is for 40–100 lb, 43–57"", and at least 4 years old.
How does Tranzitions™ grow with my child?
It transitions from a forward-facing harness seat to a highback booster, then to a backless booster. The No-Rethread Simply Safe Adjust™ Harness System lets you adjust the harness and headrest together in one motion for a proper fit as your child grows.
Is Tranzitions™ rear-facing?
No. It is designed for forward-facing harness, highback booster, and backless booster use only.
What safety features does this seat have?
It is Graco® ProtectPlus Engineered™ to help protect in frontal, side, rear, and rollover crashes. It meets or exceeds US FMVSS 213. The built-in 5-point harness is side-impact tested for occupant retention.
How do I clean the seat, harness, and buckle?
The seat pad is machine washable. Clean the buckle by placing it in a cup of warm water and gently agitating it while pressing the red button. Do not use soap or lubricants. Surface clean the harness with mild soap and a damp cloth. Clean metal and plastic parts with mild soap and cool water.
What are the seat’s dimensions and weight?
The seat measures approximately 19"" W x 26.5"" H x 17.4"" D and weighs about 14 lb.
Does the car seat include cup holders?
Yes. It includes two easy-to-clean cup holders.
When should my child move from the harness to a booster?
Use the built-in harness as long as possible within the seat’s limits. Once your child meets the booster requirements and is mature enough to sit properly, you can transition to booster mode.
What is the seat’s lifespan?
Stop using and dispose of the seat 7 years after the date of manufacture.
Care & Maintenance
    • Machine-washable seat cushion
    • CLEANING BUCKLE: Place in a cup of warm water and gently agitate the buckle. Press red button several times while in the water. Do not submerge the buckle strap. Do not use soap, detergents or lubricants
    • CLEANING HARNESS: Surface wash only with mild soap & damp cloth or wipes. Do not immerse harness straps or latch strap in water
    • CLEANING HARDGOODS: Metal and plastic parts may be cleaned with mild soap & cool water For full cleaning instructions, please refer to your user manual or contact Customer Service at www.gracobaby.com or 1-800-345-4109
Product Instructions

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011305

GRACO CHILDREN'S PRODUCTS INC. EXTON PA 1931 1-888-224-5649 Made in U.S.A.

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Manufactured in 20160205

EXTON PA 1931 1-888-224-5649 Made in U.S.A.

Y Y Y Y M M D D

Model: 7777DEV

Manufactured in 130105

GRACO CHILDREN'S PRODUCTS INC. EXTON PA 1931 1-888-224-5649 Made in U.S.A.

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Rated 5 out of 5 by from Great Seat! Great seat! Switching to this booster from the Graco 4ever allowed us to be able to fit 3 in my husbands rav 4. We have one rear facing Graco 4ever, one slim fit, and this in the middle for my oldest. It is also super light and easy to move around. Only bummer was I wish it had the seatbelt snuglock technology to make sure we got it tight enough. This seat is great if you need a slim but safe seat.
Date published: 2026-08-25
Rated 5 out of 5 by from Great features Looks like a nice harness booster. Nice color and fabric. Straps are easy to position and adjust. Stable base.
Date published: 2026-08-19
Rated 4 out of 5 by from Great for price! Great option for our four year old. Only complaint is that the straps sometimes get twisted making it more difficult to buckle when it happens.
Date published: 2026-08-07
Rated 5 out of 5 by from Perfect for a tall toddler This is the perfect car seat for my tall 3.5yr old toddler that wears 5-6yr old clothes. It is a very comfy seat that doesn't take much space and makes her feel like if she was seating on the actual backseat of the car.
Date published: 2026-08-03
Rated 3 out of 5 by from Perfectly adequate It goes in the car very easily and it's relatively cheap for a car seat. However, it is very hard to clean. My daughter vomited in the car and cleaning this thing was a struggle. My other Graco (the 360) is a lot easier and allows me to pull the cloth parts off to wash, without removing straps. On this Graco, you have to remove the straps to get all the covers off.
Date published: 2026-07-27
Rated 5 out of 5 by from Best convertible harness/booster I have now purchased 4 of these for all 4 of my kids. The first one I bought is still in great condition, but we now have 2 in each of our family's cars. Easy to assemble and use daily, lightweight. Flexible. Great purchase, worth the money but is very reasonably priced!
Date published: 2026-07-14
Rated 5 out of 5 by from Very nice car for a 4 year old We are loving our new car seat. My daughter sits comfortably in it and actually falls asleep in it. Her last one she would never. It was easy to install and it’s easy to use. Lightweight and doesn’t take up a ton of space either. Plus we love the color!
Date published: 2026-06-30
Rated 5 out of 5 by from Comfy, cute and easy to install Cute, adaptable and the best part is that it grows with my toddler. Carseats are too expensive these days.
Date published: 2026-06-26
Rated 5 out of 5 by from Love this seat. We have the 10 in one car seat which is great. However for our daughters long legs we ordered this which seemed more comfortable for her. It is. We are still keeping the 10 in one to have for backup. We love them both.
Date published: 2026-06-23
Rated 5 out of 5 by from Love it! We loved our new big girl car seat! Simple and easy to use!
Date published: 2026-06-22
Rated 5 out of 5 by from Love it configured with the seatbelt guides. I bought this a month ago and used the full harness which was big enough and easy to use (unlike the previous seat I had). Over the weekend converted from the harness to the seatbelt. The belt is so easy to use. He climbs in and it takes me seconds to thread the shoulder strap thru the Graco. Phew.
Date published: 2026-06-16
Rated 5 out of 5 by from Great seat Love this seat! So adaptable and versatile. Great for future set ups.
Date published: 2026-06-15
Rated 4 out of 5 by from Good, lightweight seat and daughter loves the color! It was a bit tough to install tight enough with latches, so just be aware you might need a bit of muscle. Otherwise no complaints - this seat is actually a replacement of the exact same seat after a car accident so we definitely like it enough to repurchase!
Date published: 2026-06-12
Rated 5 out of 5 by from Love it! Checks all the boxes! We bought this seat to transition our 3.5 year old from rear-facing to forward-facing. It was incredibly easy to install! My kiddo loves it and I feel like she is safely snug within the harness. Also the seat sits at just the right recline that when she falls asleep on the car her head doesn’t fall forward. I feel like this is the best seat for safety, comfort, ease of installation and affordability. Would definitely recommend to everyone!
Date published: 2026-06-11
Rated 5 out of 5 by from Very Satisfied Bought two for our 2 1/2-year old. Easy installation and a long-term option as she grows. Loves her “big girl car seat”.
Date published: 2026-06-06
Rated 5 out of 5 by from Excellent forward facing seat Works great and easy to install and remove. Grandchild loves it.
Date published: 2026-06-03
Rated 3 out of 5 by from It’s hard to get it to sit straight when it’s buckled in to the car, it wants to lean one way- (we’re still using the 5 point) I’m a car seat tech and I still can’t get it to not sit on an angle once the seat belt is buckled
Date published: 2026-06-02
Rated 5 out of 5 by from Safe, sturdy I was in a bad car wreck with my children a couple days ago, and this carseat kept my youngest in place, and didn't get damaged while we rolled in the car, it was also secured very tightly thanks to my husband. Safe to say we will be going with this brand again when we get a new carseat.
Date published: 2026-06-02
Rated 5 out of 5 by from Great Seat! We love this seat. it’s perfect for our little guy, safe, and reliable. would definitely buy again
Date published: 2026-05-26
Rated 5 out of 5 by from Only ones I trust I have 2 autistic kids, they are experts escaping from every place they don't like, but they love their new chairs, they are not even trying to escape from them because they are comfy y safe.
Date published: 2026-05-21
Rated 5 out of 5 by from Great car seat Installation was super easy. My daughter loves that it has cup holders!
Date published: 2026-05-19
Rated 5 out of 5 by from Great seat I bought this for my granddaughter, it’s easy to install has lots of room to grow, is comfortable for her. Doesn’t take up a ton of space on my car. Seems safe and comfortable for her.
Date published: 2026-05-17
Rated 3 out of 5 by from great seat. very tricky install Love the size and weight of the seat, taking one star off because its awful to install. I got this seat because I wanted to have a lightweight seat for my son in case of travel. However, I worry about my ability to quickly install it into a different car at a vacation destination. I haven't found anything on the market as affordable or lightweight so I decided to keep it, but the difficulty of install is really a drag. I search high and low for tips and tricks to make it easier but overall I haven't found a quick or easy way ot manage the install.
Date published: 2026-05-14
Rated 5 out of 5 by from Easy install I bought this seat about a month ago and it’s been great! Super easy to install, my child is comfortable, and allows her to ride safely!
Date published: 2026-05-12
Rated 1 out of 5 by from Cheap garbage latch system buckles To adjust the buckles for the latch system usually takes about 45 minutes. As they get tight they jam because the seat edge that they must stretch over is too tight a curve and wrinkles the belts. Absolutely horrific buckle usage.
Date published: 2026-05-12
Rated 5 out of 5 by from Good next step for an older toddler Switched from an all in one to this for my older child. It provided more leg room and gave me a better view out the rear window. It provides the same Graco safety I had in my all in ones in a lighter package. The install was the same as my other Graco seats and it should be the last seat I but for my child as it can adapt as he grows.
Date published: 2026-05-09
Rated 5 out of 5 by from Perfect My daughter was not quite ready for the booster when my son was outgrowing the infant bucket car seat, so this was the perfect solution! Same graco quality as always. The buckle is a little different though, which we are still getting used to.
Date published: 2026-05-07
Rated 5 out of 5 by from Great! Great seat. Light weight, durable, and easy to use.
Date published: 2026-05-05
Rated 5 out of 5 by from Excellent design and quality I have used the seat for about a month now. It was easy to put together. The quality feels great and safe. Less bulky compared to other seats.
Date published: 2026-05-02
Rated 4 out of 5 by from Great features! Love it and for the price it’s very worth it! My 4 year seems to like it. Only reason I give it 4 stars is because I wish it had more variety of colors
Date published: 2026-04-29
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Tranzitions™ 3-in-1 Harness Booster
$139.99