Britax Grow with You Harness SafeWash Booster Car Seat - Mod Black

We needed to replace our 4 year olds car seat. Love the option that we have a 5 point harness and that will eventually move to a high back booster seat without sacrificing sturdiness and safety from a trusted brand. This is our 6th Britax seat across 4 kids.

Horrible seat. Britax quality has fallen recently. This is a backup seat, it isn’t used hardly at all. Stays in a truck. Bought 6/3/2024. Recline is missing. The seat belt lock prongs gave way.

Thought this would last us till child’s 8th year when legal to let the booster go. But at 7yo she’s getting uncomfortable with the backrest. Wish we’d bought one where you can remove that part of the seat.

Went with this car seat because it shows it being a click tight instillation (when looking through the pictures of this car seat). After trying to install this, it is not a click tight car seat.

This has to be the worst car seat I’ve ever had. I’ve had two britax car seats and they were great. Well worth the money this one is NOT. It feels so cheaply made I’m so disappointed in britax . I’ve had the marathon and it was amazing !!!! The click tight is everything . This one SUCKS the plastic feels so cheap there’s no click tight button or nothing . The flip thing to move the harness sucks after adjusting it ONCE the plastic shows WHITE MARKS OF STRESS CHEAP PLASTIC. No CLICK TO ENSURE ITS LOCKED IN PLACE . The top of it does fit nicely into car the anchor holds it nice and tight but the bottom is wobbly no matter how you put it . I like the cup holders(my marathon did not have cup holders. IM RETURNING THIS IMMEDIATELY TO BUY THE OTHER ONE FOR LIFE BRITAX WITH CLICK TIGHT . Over all I’m so disappointed I waited a week for this to come and it was terrible.

Pictures in product are incorrect. Not a click tight.

The headrest uses a different phone than the side bolsters and just from the normal movement of the car driving down the highway squeaks constantly and is extremely annoying. I would not recommend this seat.

Love love love this car seat so easy to install it’s in tight doesn’t move and my toddler loves it 😊

[This review was collected as part of a promotion.] We were in need of a new car seat for my 4yr old. He is on the smaller side and we wanted something that we knew would last for the many years to come he will be needing a booster seat. We have always loved Britax because of their highly rated safety and the quality of the overall product. Some may say its on the higher end of the price range but I truly believe that this is worth EVERY PENNY! We are a two car family so having a seat that is easy and quick to take out and put in the car is a must. I love the lift up feature as there is no more having to fish the seat belt behind the seat while in the small space of a car. My son is able to buckle himself in which is a huge plus for a mom with 4 kids! Once he buckles we just check to make sure it secure and tight. Lastly, the seat is very comfortable and my child is able to sit in it without complaints for long car rides. I am a huge fan of the head rests so my childs neck is fully supported when he is sleeping. Over all this is a great seat and we will for sure be purchasing another one when our second son is able to begin front facing in his car seat! Once again a HUGE thank you to Stellar Panel for providing me with another amazing product to test as part of the Stellar Product Testing Panel.

[This review was collected as part of a promotion.] We were given the Britax Grow With You Harness-to-Booster Car Seat to try out from the Stellar Product Testing Panel. My daughter and I were pretty excited to upgrade her to a big girl car seat like her older brother. She’s a preemie and petite, so it’s taken her much longer to get big enough for a safe upgrade. As a mom to 3 kiddos who are five years old and under, I was pretty interested in seeing if it really was easy to install and remove the fabrics for cleaning. We went on a road trip to visit my grandparents and later visited an amusement park over Christmas break. That meant we had many snacks and naps to give this car seat a real test drive. First Up: Snacks! Our favorite on the go meals are nuggets and fries. My daughter liked her, “Sauce Space” (at least that’s what she decided the bonus snack area behind her cup holders were for.). In practicality, she had to kind of bend her arm funny to dip in her sauce because it sits directly under the armrest, but she didn’t mind (and I liked that she wasn’t holding it and spilling it all over herself). As for naps, this car seat wasn’t quite as comfortable as her reclining baby car seat. When she slept, her head tilted forward and to the side and that resulted in a sore neck and crying toddler when she woke up. Honestly, that’s not really preventable when you have an upright, big-kid car seat though, so I don’t fault the seat itself. I appreciated that it didn’t take more than 5 minutes to read through the manual and adjust the seat to her best height. Moving the buckle to a different setting confused me at first, but after I did it, I felt kinda silly for not understanding it at first. It’s really simple to do. Installing the car seat with the anchor and my van’s built in seat belt was really easy too. I didn’t bother with latch straps, but it doesn’t look hard. After we got home from our 2nd trip, the snack spills demanded cleaning. I was delighted that the covers really are easy to remove and put back on. Washed up great in the washer and only having 2 pieces to clean was nice because it is so straightforward (especially compared to her brother’s 3 complicated pieces). I would definitely recommend the Grow With You Harness-to-Booster. It’s built to last till she is ready for the vehicle’s built in restraint and it seems easy to adjust and keep maintained while she grows up. I have a 45 minute commute to work every day, so thank you again to Britax and the Stellar Product Testing Panel for keeping my kiddo safe during all our travels.

[This review was collected as part of a promotion.] I received the Britax Grow With You Harness-to-Booster Car Seat from the Stellar Product Testing Panel. I was very excited to test this product! However, this car seat was incredibly difficult to install. Even when the seat was tethered, it moved around more than an inch. It was also a struggle to adjust the straps and harness features when trying to strap my child safely in. The feature I liked the most was how padded the seat was. I also like how the covers are easily removable to be cleaned. We all know this is very important for both toddlers and busy moms, such as myself. In addition, I appreciated the double cup holders and that they didn’t take up too much room (I have another car seat in the car as well). My daughter was also comfortable in it. I look forward to using the booster feature when my toddler is big enough. Thank you again to the Stellar Product Testing Panel for providing me with this opportunity to test this car seat.

[This review was collected as part of a promotion.] Easy to clean, easy to install I received this booster seat from the Stellar Product Testing Panel. I like britax products for safety and looks. The grow-with-me seat was easy to install, and my almost 4 year old reports that it is a “really comfortable and really cool big boy chair” and he also says he can see more stuff out the windows. I also like how easy it is to remove the padding and clean it, that definitely gives this seat some points. I also like that Britax does not add any flame retardant chemicals to their baby products. I like the harness for younger kids. My son is tall but slim, so we do have to tighten the harness quite a bit, and it is challenging to adjust. The strap is so long, I have to pull several times, while releasing it with my finger so that it feels secure, I’d like that to be easier. It’s a bit bigger than our other convertible car seat, so if you need three across, there may not be room depending on the car you drive.

[This review was collected as part of a promotion.] I was given this booster seat to try as part of the Stellar Product Testing Panel, but the thoughts and reviews are my own. I absolutely love this car seat/booster seat! It was incredibly easy to install in my car, which I can't say I've experienced before. The size is absolutely perfect and my son says it's incredibly comfortable. I love that I can easily clean this material as well. While my son is not in a booster seat just yet, he's right on the cusp so I played around with making it a sole booster, and that was even easier than the initial install. It's high quality, feels incredibly safe and I love that my son loves being in it. I think this will be a perfect fit while we grown through the different stages of needing a car to a booster seat.

[This review was collected as part of a promotion.] This was the first forward facing seat my 3.5 yr old used and she loves it! I found it extremely easy to install. I glanced at the instructions before installation then again after installation to ensure I did everything correctly. It was very intuitive. I did not find adjusting the height of the back to be easy initially but by the 3rd try I was a pro. The fabrics are all very comfortable and I like the way they are positioned. My daughter confirmed it feels very smooth. It seems like it will be easy to clean when we inevitably need to throw it in the wash. The first few days there was a loud squeaking noise from the headrest that I was not able to make stop despite a full read through of the directions and multiple stops on the side of the road as I attempted to fix it. After 4 days the noise went away on its own for when my daughter is not in the seat. It still occasionally squeaks when we are on a bumpy road and my daughter is in the seat. My daughter does not mind the noise and is still loving the seat after 2 full weeks of using it multiple times a day. Her favorite feature is the FOUR cup holders so she now has easy access to snacks, a drink, a pinecone, and whatever toys she fits in there. Thank you to the Stellar Product Testing Panel for providing me with this Grow With You Harness-to-Booster Car Seat

[This review was collected as part of a promotion.] I received this booster seat to try as part of the Stellar Product Testing Panel. My son, who just turned 4, had been using a convertible seat until the start of the school year, when we moved up to a transitional type booster (not this one). I mention coming from another booster so you better understand my appreciation for the Britax Grow With You Harness-to-Booster seat. Within the first 2 weeks in my prior booster, I regretted my purchase. It was a blessing when 3 months later, we received the Britax. The first and most important feature for me that made this switch necessary (missing on my other) was the extended head support. When we went from convertible to the ‘big boy’ seat, we quickly realized how uncomfy my son was when tired, as the seat lacked the extended side head support he was used to. It also gave me a ton of anxiety, as his head would just be bobbling and dangling around which was very unsettling. The Britax Harness-to-Booster offers little ones the independence of a booster (they can get in the seat easily on their own), while providing the safety, comfort and support of a convertible. The arm rest and dual cup holders are also a nice added feature and my son loves both! The fabric is nice and soft and can be easily removed and washed, though we havent done this yet. The height was easy to adjust and installation with LATCH was simple (though out of the box, the connectors come tucked and latched deep inside the seat which was a bit cumbersome to get out.) The one thing I find to also be slightly overexerting is the actual harness adjustment. Getting used to it now but it does seem like in general, it takes more effort to tighten than others I’ve had (unless I’m just doing it wrong) and the adjustment button is a bit oddly placed. Those minor things aside, I am very pleased with this seat and beyond relieved to have made this switch.

[This review was collected as part of a promotion.] Thanks to the Stellar Product Testing Panel for providing me with this booster seat. The moment the box arrived, I made sure to put it to use right away so that I can give my honest and thorough feedback on what I observed. I'm a mother of 5 children and I've been through many booster seats over the years. I would have to say that this one is by far the best one that I've ever used! I can't list just one feature that is my favorite with this car seat, so I'll just list a few. First feature that I liked about this car seat is the fact that there are cup holders. Without the cup holders, there would be a big drink mess all over my seats and floors. I absolutely love that the fabrics are naturally flame-retardant, and cleans very easily. The fact that I can just wipe it clean instead of having to wash it every time there's a mess on it is a huge hit for me! Being able to adjust the car seat to find the best fit for my child was extremely easy. My daughter even seemed to have fun helping me find the perfect fit for her.

[This review was collected as part of a promotion.] I received this product as part of the Stellar product Testing panel. We’ve been using this seat for about a month in day-to-day drives and on longer hauls up to 6 hours and have really liked this seat! My 5-year-old is pretty particular about seats and we’ve been through our fair share. When he saw me open the box for this one, he was excited, which gave me some hope he would like this one. He definitely does! The seat was really easy to install in our 2015 Tahoe captain seat. My only minor comment is it took me a while to figure out how to adjust the straps to be tight enough on my son. But once I did, it was fine. The material is smooth (I really like that there isn’t a texture on the fabric, which often makes it easy for dirt to get stuck). My son loves the armrests and snack/cup holders. I love the headrest because he actually took a nap (really rare these days) on our long car ride to and from our in-laws over Christmas! Overall, I really like this seat. It’s solid, comfortable and the biggest win- my picky son loves it!

[This review was collected as part of a promotion.] This is our official "big kid" car seat, as our little one is now 3.5 years old and around 39" tall and 39 lbs too. It was packaged extremely well, and the directions were easily found in the package. This is the first car seat I installed without my husband's help. I have a large SUV, and installed this carseat behind the passenger seat, forward facing. I used the latch system to install it. I found it to be only slightly challenging to figure out the straps, and what goes through where, to properly use the latch system to install in the upright position. Once I had the straps laid out, I had some difficulty tightening and loosening the straps to get everything cinched down. So, I ended up needing some extra help from my husband to get it fully tightened down. Once it was in, the seat is very nice, seems to be well-made of good materials, but not what I would consider top-tier materials. The button in the seat you push to release the straps, is not covered in anything, just metal, which was new for me. My little one was very comfortable in the seat. She loves that it is roomier from her prior seat, and she's had no problem napping in it too! There are 2 armrests, which is nice, but I would love it if they could rotate up or down, for ease of getting my child in and out of the taller SUV. I physically have to lift her over it, to not bump her leg on it. We are very happy with the seat. It seems extremely safe, secure and our little one really likes sitting in it. This one will be with us for the duration, as she can easily transition to the booster, once she meets the requirements for that stage of growth. So glad we can stick with this and don't have to find another car seat to grow in to! We were fortunate to receive the product through the Stellar Product Testing Panel in exchange for an honest review.

[This review was collected as part of a promotion.] We were lucky to receive the Britax Grow With You Harness-2-Booster. The timing couldn’t have been more perfect! My 3 year old recently became a big brother and we need our convertible car seat for our newborn. He was thrilled to have a big boy car seat! Mom was more thrilled about the high strength steel framing and all the great safety reviews! It was nice to utilize the recline option on the Britax car seat since he was not used to sitting straight upright on his previous car seat. The Britax seat is light enough for mom to carry (compared to our transitional bulky car seat). Installation was made easy thanks to the latch connectors. It wasn’t clear in the instruction manual pictures where to thread the belts through however, the Harness-2-Booster seat itself has clear colored markings and labeling on where to feed it through. The V-shaped tether secured the car seat to the latch on our minivan pilot seat perfectly and both sides were snug tight. My 3 year old loves that he can climb in to the seat by himself. Upon his first time using it, right away he noticed the multiple cup holders. He was excited to put his water bottle, snacks, and toy in the car seat and have them all within reach. Overall, for my first Britax product, I am very happy with the Grow With You Harness-2-Booster seat. The safety provides peace of mind while the ability to transition from a 5 point harness to a booster provides practicality for a growing toddler! If possible, I would say spend the extra money to upgrade to the ClickTight option. We have similar technology on our convertible car seat and it makes installation easier to get the belt tight. Thank you to the Stellar Product Testing Panel for sending me this Harness to Booster Seat to try and review.

[This review was collected as part of a promotion.] I received this Grow with You Harness-2-Booster seat from the Stellar Product Testing Panel about a week before the holidays, and I managed to get a few uses in before the snow and ice hit. We used the booster mode and installation was quick and easy with the LATCH system. The seat feels much heavier than it looks and is quite wide. We currently have 2 boosters installed and I'm not able to ride with them in the back sitting in the middle. The 4 spaces for cups and snacks are very useful according to my child. There's enough space for small toys! She is able to climb in and out, buckle up all on her own, and nap without having her head fall forward. The sides do a nice job keeping her head up unlike the seat from another brand .The steel frame makes the seat very sturdy and gives me peace of mind knowing my child is safe in her seat. Another great thing is the product has 9 years of life, can definitely pass it on to another child. The removable and washable cover is a nice feature. The only thing it didn't come with that I would like is a detachable base so I can take it on trips for a safer ride. I would definitely recommend this booster due to its durability and safety features.