Graco Tranzitions 3-in-1 Harness Booster Car Seat - Proof
$149.99
ColorProof
In Stock
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4.5 out of 5 stars with 3529 reviews
quality: 4.4 out of 5
comfort: 4.26 out of 5
value: 4.29 out of 5
durable: 4.29 out of 5
ease of installation: 4.1 out of 5
81% would recommend
911 recommendations
5 out of 5 stars
Thumbs up graphic, would recommend
4 February, 2026Verified purchase
Comfy, lightweight, and safe
We bought this car seat specifically for traveling, and it has been a game changer. The lightweight design made airport travel so much easier—carrying it through security, boarding, and installing it in rental cars was quick and stress-free. . Safety was our top priority, and this seat gave us peace of mind with its solid construction and secure fit. Installation was very easy and you didn’t need any extra tools. It’s comfortable for our child and fits well in different vehicles, making it perfect for trips. Overall, this is an excellent travel car seat for families who want something easy to carry without compromising on safety. Highly recommend for anyone who travels often with kids.
1 out of 5 stars
Thumbs down graphic, would not recommend
3 February, 2026Verified purchase
(no review title)
Great slim design. However, this thing rattles to no end. It’s the mechanism to adjust the headrest height. every. single. bump or vibration. rattle. rattle. rattle. oh. and it clips to the anchors, not like a buckle. have fun moving the car seat.
1 reply from Graco Consumer Care team - 11 days ago
Hello, thank you for your feedback on our Tranzitions 3-in-1 Harness Booster) and we are sorry that it did not meet your expectations. When the seat is not in use , you can lower the headrest to prevent trhe rattle. Satisfaction of our consumers is important to us, therefore we would be happy to help you resolve this issue.Please reach us at 1-800-345-4109 Consumer Care team 9AM to 5PM EST, or you can also use the link below to contact us via email. We are looking forward to hearing from you! https://www.gracobaby.com/support/contact-us Thank you! Graco Team
1 out of 5 stars
Thumbs down graphic, would not recommend
28 January, 2026
(no review title)
Please listen to the reviews on how the seat slides around or doesn’t stay tight and secure! It may be different in every car but this car seat did not stay tight no matter what i did! i wouldn’t suggest buying it when there are better options out there!
1 reply from Graco Consumer Care team - 17 days ago
Hello, thank you for your feedback on our Tranzitions 3-in-1 Harness Booster and we are sorry that it did not meet your expectations. Satisfaction of our consumers is important to us, therefore we would be happy to help you resolve this issue.Please reach us at 1-800-345-4109 Consumer Care team 9AM to 5PM EST, or you can also use the link below to contact us via email. We are looking forward to hearing from you! https://www.gracobaby.com/support/contact-us Thank you! Graco Team
5 out of 5 stars
Thumbs up graphic, would recommend
27 January, 2026Verified purchase
(no review title)
Moved my kids from their infant seats to this and they love it! As a mom I feel they’re very safe if involved in an accident and love the cupholder location
5 out of 5 stars
Thumbs up graphic, would recommend
24 January, 2026Verified purchase
Great!
The straps are long and adjustable. It’s not too heavy. Simple to install. Everything you need!
5 out of 5 stars
Thumbs up graphic, would recommend
11 January, 2026Verified purchase
(no review title)
Clean and a great product
5 out of 5 stars
Thumbs up graphic, would recommend
8 January, 2026Verified purchase
Saved My Child's Life
This carseat saved my daughter's life! We were hit headon in a terrible car accident, but my 3 year old was completely unharmed thanks to this seat. I will be buying this one again!
5 out of 5 stars
29 December, 2025Verified purchase
(no review title)
Grate in samall cars
1 out of 5 stars
26 December, 2025
(no review title)
We’re not recommend it does not stay still even if you try to fix it. I have read the manual and no matter what we do different cars it wobbles too much.
1 reply from Graco Consumer Care team - 2 months ago
We're sorry to hear about your experience. We're committed to assisting you. Please follow us via the support tab on gracobaby.com or via phone at 1-800-345-4109, so that we can further assist you. -The Graco Team
2 out of 5 stars
Thumbs down graphic, would not recommend
20 December, 2025Verified purchase
Defective
I purchased this car seat from Target in Carlisle, PA, it was missing the cupholders. They did an even exchange for the same model, the next one had the same issue. It was missing the cupholders. It is defective coming from the manufacturer. I asked them to remove it from the shelves due to this issue.
1 reply from Graco Consumer Care team - 2 months ago
Hi. We are sorry to hear about your experience. The Tranzitions has the cup holder inside of the cupholder slot. If you refer to the manual, in the cup holder section it advises where and how to assemble those cupholder. -The Graco Team
1 out of 5 stars
Thumbs down graphic, would not recommend
20 December, 2025
(no review title)
Terrible service went to pick up 4 hours never heard anything couldn't find my order because it was stuck in a glitch and I had to repurchase the item while its in limbo. So basically had to buy it twice and wait for original order to go through and cancel it could be days
5 out of 5 stars
19 December, 2025Verified purchase
(no review title)
Sturdy! Secures like a car seat with the independence of a booster. My child loves this booster for it’s comfort, and ease of use. We have this booster in multiple cars.
5 out of 5 stars
Thumbs up graphic, would recommend
18 December, 2025Verified purchase
Car seat
This car set is just what we needed. I love how it can be used all the way until our child doesn’t need a car seat any long.
4 out of 5 stars
Thumbs up graphic, would recommend
14 December, 2025
Besr bang for buck for forward-facing!
Best bang for your buck in our opinion. A few things to not love, but overall for the price it is the best! Cup holders are wimpy and pop loose occasionally. The seat is light, very easy to adjust and seems comfortable for our kids. Very easy to transition to each seat option as well. The straps to tighten the seat down can be a little tough, but once it is in, it is snug!
4 out of 5 stars
11 December, 2025Verified purchase
(no review title)
honestly it’s a decent car seat, super easy to install and super comfortable for my 2 year old
5 out of 5 stars
Thumbs up graphic, would recommend
29 November, 2025Verified purchase
(no review title)
I love this brand chair. I have my three year old who also has one. Easy to assemble. And definitely comfy when we go on trips.
5 out of 5 stars
Thumbs up graphic, would recommend
23 November, 2025Verified purchase
Easy to use
My son loves his big boy chairs
5 out of 5 stars
17 November, 2025Verified purchase
(no review title)
Very efficient
5 out of 5 stars
Thumbs up graphic, would recommend
12 November, 2025Verified purchase
(no review title)
Love that it converts to a booster seat!
1 out of 5 stars
12 November, 2025Verified purchase
Wont tighten!
I should have known better and read the bad reviews! Ugh, this car seat was awful! I could not for the life of me get it to tighten to my seat. I tried for probably an hour using the latch and seatbelt methods. Both methods left the seat so wiggly and loose. And in the process my seatbelt got twisted, which was a whole other issue I had to fix. This car seat is worthless. I can’t imagine people are using this correctly and that it actually gets tight. The seat should not move more than an inch side to side. I wish it had worked out because it looks nice and was super lightweight. I will stick with Britax clicktight, which has never failed me in any car I’ve had it in.
1 reply from Graco Consumer Care team - 3 months ago
Hello, We appreciate you for taking the time to write to us and we use all the feedback we get to continually improve everything we do. If you require our assistance, please contact us on the following email address: gracoconsumercare@newellco.com or through LiveChat so we can help you further. We’re available Mon.-Fri. 9am – 5pm Eastern Time. Thank you! Graco Team