Out of Stock
4.4 out of 5 Customer Rating
Tranzitions™ 3-in-1 Harness Booster is rated 4.4 out of 5 by 1084.
  • y_2026, m_10, d_18, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_1, bvpage1
  • co_hasreviews, tv_358, tr_726
  • loc_en_US, sid_SP_93789, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_graco
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 0ms
  • reviews, product
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 1084.
  • y_2026, m_10, d_18, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_1, bvpage1
  • co_hasreviews, tv_358, tr_726
  • loc_en_US, sid_SP_93789, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_graco
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 0ms
  • reviews, product
$139.99
Final Sale: may not be returned or exchanged
Color
Selection will refresh the page with new results.
$139.99
Final Sale: may not be returned or exchanged

Want us to let you know when the item you wanted is back in stock?

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 9 height positions, with no rethreading. It features two rotating cup holders to keep your child happy, a machine washable seat pad, 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, 9-position adjustable headrest grows with your child
  • Integrated, rotaing holders help keep your child's drink close
  • 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: a combination of the most rigorous crash tests that helps to protect your little one in frontal, side, rear & rollover crashes
  • Side-impact tested according to FMVSS 213a with the built-in 5-point harness system
  • 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: Proof
    • Model#: 2215750
    • 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 weight and height ranges does the Graco Tranzitions 3-in-1 Harness Booster support?
The Graco Tranzitions 3-in-1 Harness Booster supports forward-facing harness use for children 26.5-65 lb, up to 49 inches; highback booster and backless booster use for children 40-100 lb, 43-57 inches, and at least 4 years old.
How do you locate and adjust the cupholder on the Graco Tranzitions car seat?
The cupholder is pre-installed on the Graco Tranzitions car seat. To adjust, lift the cup halfway out, rotate to align the tabs with the T-slots in the seat shell, and slide the cupholder into place.
Can the Graco Tranzitions seat pad, body support, and harness covers be machine washed?
Yes. The seat pad, body support, and harness covers of the Graco Tranzitions 3-in-1 Harness Booster are machine washable for easy cleaning.
How does the Simply Safe Adjust Harness System work on the Graco Tranzitions?
The Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion, offering 8 height positions with no rethreading required.
Is the Graco Tranzitions 3-in-1 Harness Booster tested for side and frontal impact?
Yes. The Graco Tranzitions 3-in-1 Harness Booster is Graco ProtectPlus Engineered to the newest testing standards for side and frontal impact, and beyond.
When should a child stop using a booster seat according to Graco recommendations?
A booster seat is no longer needed once the vehicle seat belt fits properly, typically when the child reaches 4 feet 9 inches tall and is between ages 8-12. Always check local laws and AAP and NHTSA recommendations.
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

Replacement Parts Graco

We at Graco care about safety and the only way we can make sure that the parts of your order are a perfect fit for your Graco product is to ask for the model number and manufacture date of the product you own.

Locating Your Product Information

Model Number

Most Model numbers can be found on the back of your Graco® product. In some Graco products, model numbers can be found on the top of a base unit.

Manufacturing Date

This date refers to the day, month, and year in which a Graco product was made, and can be found on the sticker along with the model number. Here are three examples manufactured date formats:

011305

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

M M D D Y Y

Model: 7777DEV

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.

D D M M Y Y
Rated 5 out of 5 by from Great upgrade for growing toddler! Easy to setup and install in the car, massive improvement over the car seat for our growing toddler.
Date published: 2026-10-14
Rated 5 out of 5 by from Worth every penny This booster seat is solid and sturdy, and my grandson loves it. Most definitely would recommend
Date published: 2026-10-10
Rated 5 out of 5 by from Feels secure and safe. This chair looks and feels comfortable for my kids. I got 2 of them for my twins toddlers. They sleep in them and their head neck stays up and comfortable. I love them and recommend.
Date published: 2026-10-05
Rated 5 out of 5 by from Exactly what we desired in a seat! Safety first, comfort second. That is exactly what we get with this seat. Super secure, easy to install, beautiful color and our daughter is super comfortable for long rides.
Date published: 2026-09-29
Rated 5 out of 5 by from Nice color My 4 year old likes her new car seat, comfortable and space saver.
Date published: 2026-09-28
Rated 5 out of 5 by from Great features My granddaughter loves this from the color to the comfort and we love the security it provides!
Date published: 2026-09-25
Rated 5 out of 5 by from Very Stable and Protective I purchased two to use for my grandchildren. The quality seems very good, and they are stable when attached to the anchors. The kids say they are comfortable and the harnesses are adjustable. The design allows for easy access for when the kids climb in and out.
Date published: 2026-09-18
Rated 5 out of 5 by from Great car seat not bulky ! It’s great my 4 year old wanted less bulky car seat and this fits great in our truck. He loves his new seat. And I bought 2 more for my other kids.
Date published: 2026-09-11
  • y_2026, m_10, d_18, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_1, bvpage1
  • co_hasreviews, tv_358, tr_726
  • loc_en_US, sid_SP_93789, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_graco
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getReviews, 0ms
  • reviews, product

<!--begin-bvseo-questions--> <!--begin-questions--> <div id="bvseo-questionsSection"> <div class="bvseo-question-answer" data-questionid="8277784"> <h2 class="bvseo-question"> Full extended headrest height? I have a very small car, and need to know the height of the seat when the headrest is FULLY extended for a bigger kiddo. Thank you! </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: BasicAbby</div> <div class="bvseo-answer" data-answerid="7905242"> Thanks for your interest in our Tranzitions 3-in-1 Harness Booster. The seat is approximately 33&amp;quot; in height when the head rest is fully extended. -The Graco Team <div class="bvseo-author">Answered by: Graco Consumer</div> <div class="bvseo-pubdate">Date published: 2026-10-09</div> </div> </div> <div class="bvseo-question-answer" data-questionid="8274506"> <h2 class="bvseo-question"> The car seat rattles when I&amp;rsquo;m driving what could be causing it? I can&amp;rsquo;t handle that noise. </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: Hollyjo</div> <div class="bvseo-answer" data-answerid="7902280"> Thank you for your feedback on the Graco Tranzitions 3-in-1 Harness Booster. We&#39;re sorry to hear about the rattling noise you&#39;re experiencing while driving. Depending on how the seat is being used, some movement or noise can occur from components such as the harness, buckle, cup holders, or adjustable headrest when the seat is unoccupied. Please refer to your owner&#39;s manual for warranty information or troubleshooting steps. -The Graco Team <div class="bvseo-author">Answered by: Graco Consumer</div> <div class="bvseo-pubdate">Date published: 2026-10-02</div> </div> </div> </div> <script type="text/javascript"> if (document.getElementById('bvseo-questionsSection')) { document.getElementById('bvseo-questionsSection').style.display = 'none'; } </script> <!--end-questions--> <ul id="BVSEO_meta" style="display:none!important"> <li data-bvseo="bvDateModified">y_2026, m_10, d_17, h_10CST</li> <li data-bvseo="ps">bvseo_bulk, prod_bvqa, vn_bulk_3.0.48</li> <li data-bvseo="cp">cp_1, bvpage1</li> <li data-bvseo="co">co_hasquestionsanswers, tq_2</li> <li data-bvseo="cf">loc_en_US, sid_SP_93789, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]</li> <li data-bvseo="diagnostics">clientName_graco</li> </ul> <!--end-bvseo-questions--> <ul id="BVSEOSDK_meta" style="display: none !important;"> <li data-bvseo="sdk">bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0</li> <li data-bvseo="sp_mt">CLOUD, getContent, 0ms</li> <li data-bvseo="ct_st">questions, product</li> </ul>
Tranzitions™ 3-in-1 Harness Booster
$139.99