Diono Monterey 4DXT
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Our Review of the
Diono Monterey 4DXT
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Our recommendation: From 5 years until it's outgrown (average 10-11 years old)
A 2-in-1 booster that has a high back and a backless mode
From 5+, but the child must be mature enough to sit properly at all times
Stand Out Features of this Car Seat
Lower Anchors
Seat is good for you if
You have a tall child.
You have non-removable headrests.
Use caution if
You need to fit car seats 3 across in your vehicle.
Quirks to be aware of
Child Fit Information
Installation Information
Videos
For help with all things airplane travel and car seats, check out our Wheels Up Course and private Facebook group.
Check out our full list of car seats for Airplane Travel here: FAA Approved Car Seats.
Check out our full list of Canadian car seats for Airplane Travel here: Aircraft-Approved Car Seats.
SITS Bottom Line
Similar Car Seats
Specifications
Diono
Product Information
Weight: 18.8lbs
Width: 22"
Rear Facing Limits
Forward-Facing Limits
No Back Booster Limits
Height: 38-63"
Weight: 40-120lbs
Head Height Rules: child must have vehicle head support to at least the top of their ears
Highest Belt Guide Settings
22"
High Back Booster Limits
Height: 38-63"
Weight: 40-120lbs
Head Height Rules: ears must be below the top of the headrest
Other Important Details
Expiration Limit
8 years
Crash Replacement Policy
replace after a moderate or severe crash
Vehicle Seat Protectors
This brand allows Diono mats:
Diono Grip It Car Seat Protector