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Diono Monterey® 4DXT 2-in-1 High-Back Booster Car Seat

Diono Monterey® 4DXT 2-in-1 High-Back Booster Car Seat

by Diono®
$299.99 - $299.99
$299.99
$299.99
$299.99 - $299.99
$299.99
Color: Black
Manufacture SKU: 1088_
SKU 210000004588

The original 2-in-1 booster seat with one of a kind, easy-adjust, separate height and width expansion. Transforms from a high-back booster to a backless booster as your big kid grows. With 15 SafePlus® and style upgrades from the Monterey® 2XT.

Features:

  • 8 Years One Booster - for your big kid from 18 - 54 kg. It's all you will ever need.
  • Easy-adjust - 11-position headrest that grows up with your child. Engineered for safety and comfort with 2 layers of SafePlus® Side Impact Protection.
  • One of a kind - easy-adjust expandable backrest allows up to 16.5 cm to grow with your big kid. With 2 layers of Side Impact Protection and deep padded cushioning.
  • Two built-in retractable 2-in-1 cup holder and snack tray - keeps your big kid's drink close at hand and stows away their essentials.
  • Our contoured premium soft fabrics - with layered foam padding that provide comfort and support can be easily removed for machine washing.
  • SafePlus® belt guides - easy access to seatbelt buckle help your big kid with self buckling - don't forget to check though!
  • Easy, quick and secure installation - engineered with automotive steel LATCH connectors and 2 easy adjust LATCH straps allow you to quickly tighten and secure your booster to your vehicle.
  • Engineered with side impact protection - our rigid shell is reinforced with 4 layers of high-impact aluminum and EPS energy absorbing foam,to protect the head, shoulders, and torso.

Product Specs

  • Minimum User Weight: 18 kg / 40 lb
  • Maximum User Weight: 54 kg / 120 lb
  • Product Height: 69 cm / 27.2 in
  • Product Width: 52.1 cm / 20.5 in
  • Product Depth: 41 cm / 16.1 in
  • Seat Weight: 8.3 kg / 18.3 lb
  • Maximum User Height: 160 cm / 63 in
  • Cup Holders: Yes
  • Flexible LATCH: Yes

Care & Maintenance

Covers: Machine wash cold, line dry. Shell and Components: Spot clean

Warranty Information

12 months standard warranty

Canadian Shipping Rates:

Free shipping over $50 (CAN)

Exceptions may apply to oversized items, such as cribs & mattresses

Exceptions may apply for articles on sale or clearance items (prices shown in red).

Exceptions apply for remote locations. Please be aware that if your order is flagged as being in a remote location with unusually high shipping costs, we may need to cancel the order or contact you to discuss additional shipping charges before proceeding.

American (United States) shipping Rates:

Free shipping over $100 (CAN)

Exceptions may apply to oversized items, such as cribs & mattresses.

Exceptions apply for remote locations. Please be aware that if your order is flagged as being in a remote location with unusually high shipping costs, we may need to cancel the order or contact you to discuss additional shipping charges before proceeding.

Duties may apply to shipments entering the United States. As of 2024, orders under 800 CAD typically do not incur duties. However, it is the buyer's responsibility to be informed about any potential import duties before placing an order. Please note that we cannot take responsibility for any duties imposed on the buyer by their home country.

International Shipping Rates

International shipping rates will be calculated at checkout.

To get a shipping estimate, simply add an item to your cart and enter your country and postal code. If this doesn't generate a shipping estimate, please proceed to checkout, where the total shipping cost will be calculated.

Duties may apply to international shipments. It is the buyer's responsibility to be informed about any potential import duties before placing an order. Please note that we cannot take responsibility for any duties imposed on the buyer by their home country.

If a product arrives defected or not as described, we will replace it at no extra cost to you.

Returns or exchange for sizing will be at no extra cost to the buyer.

If the return or exchange is for any other reason, we will ask the buyer to pay for the return shipping. We do not accept returns for open boxes. If a product is defected we will help you make a warranty claim. All our products are protected with a limited warranty.

For more information, see our return policy.

Every product comes with it's own warranty. Once a product is removed from its original packaging, the buyer must contact the manufacturer directly to make a warranty claim. All our suppliers are reputable Canadian brands with good warranty policies.

Warranty's do not apply for clothing and shoes.

Customer Reviews

Based on 11 reviews
64%
(7)
9%
(1)
27%
(3)
0%
(0)
0%
(0)
r
review f.d.
Great seat

Great seat

r
review f.d.
Love the yellow color but shocked that the cup holders are too narrow!

Just received and installed our Monterey 4 DXT in Yellow Sulphur. The color is bright and vibrant which made my kid happy. It took only a few minutes to read the instructions and install the seat via Latch.

Hopefully we will never have to experience how safe they say this seat is. So I can't speak to that for now.

So far, the oRead more about review stating Love the yellow color but shocked that the cup holders are too narrow!nly downside we've discovered is that the seat is wider than expected. My 6yo has a hard time reaching around the wings to the seat belt insert which is flush up against the side at the back of the seat bottom in our VW wagon. The width of the seat nearly covers the seat belt insert.

The cup holders that pull out are also too wide and we can't pull the holder out on the door side. In fact the cup holders are too small and do not fit our Hydroflask or Kleen Kanteen bottles! Forget about the bottles with the extra silicon base. This was shocking since most stainless steel bottles on the market are near identical in diameter. Furthermore, we can't use the cup holder in our car's center fold-down armrest either because then my kid can't unbuckle their seat belt. The Diono seat is just too wide and doesn't leave a gap.

Overall it seems like this car seat will do better in bigger car. And Diono should consider increasing the diameter of the cup holders at least a 1/8" to accommodate standard little & big kid sized bottles (vs. smaller toddler bottles.) I'm about to write to them about this - it's a big issue for pretty standard equipment on car seats. And this model is brand new so it's not like water bottles have changed in the last few months. Truly surprised by this oversight.

r
review f.d.
wide seat capacity at an age appropriate buckling ability.

Lots of room for a growing 5yo boy who wears size 7-8 clothes.

r
review f.d.
Only car seat brand I’ll ever buy

I love our Diono seats. We’ve had multiple styles since my oldest was out of a carrier. They are comfortable, easy to clean and most importantly SAFE. This will likely be the last seat we ever need (youngest is 6, 56lbs) and while that is kind of sad I’m glad that we found this brand so long ago.
My youngest picked the color herself -vibrant bRead more about review stating Only car seat brand I’ll ever buylue-and it’s very comfortable. She can easily buckle herself and the belt remains in place and doesn’t bunch up-like our previous 5pt turned booster (also Diono).
My oldest also has this seat in purple/pink (9yo and 65, tall for her age but we still use the back for maximum safety). We have had her seat for over a year and it has held up very well for daily trips to school and multiple days of use per week.
This is the perfect booster combo.

2018 Honda Pilot with captain chairs

r
review f.d.
Saved my kids lives

We were just in a very serious car accident & my kids both had these seats. VERY SAFE! We all walked away unharmed. My kids were so safe in these Diono seats. Just bought 2 more replacements.

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