Cosco Easy Elite Slim All-in-One Convertible Car Seat

An all-in-one car seat with 3 modes: rear-facing harness 5 to 40 lb, 19 to 40 in; forward-facing harness 30 to 65 lb, 34.4 to 49 in; belt-positioning booster 40 to 100 lb, 43.4 to 52 in.

At a glance

  • Fits children from 5 to 100 lb
  • Up to 52 in tall
  • 3 modes: rear-facing harness, forward-facing harness, belt-positioning booster
  • 10-year usable life
  • Certified for aircraft use
Not sold on Amazon

Cosco lists this seat on its US site. Buy from Cosco or an authorized retailer, and confirm the exact model number before you buy.

Specifications checked against Cosco’s US site and manual on . Not hands-on tested. How I research

Who the Easy Elite Slim All-in-One Convertible Car Seat fits

This seat covers 3 stages, and a child has to meet every limit of the stage they are in. Cosco gives it a 10-year life from the date of manufacture, so check the date label before using a hand-me-down.

Rear-facing harness5 to 40 lb · 19 to 40 in
The child faces the back of the car, which keeps the head, neck and spine supported in a frontal crash. Keep this mode as long as the child fits it.
Forward-facing harness30 to 65 lb · 34.4 to 49 in
The child faces forward in the seat’s own harness. Use the top tether every time, and stay in the harness until the child outgrows it.
Belt-positioning booster40 to 100 lb · 43.4 to 52 in
The seat raises the child so the vehicle’s own lap and shoulder belt sits on the hips and across the shoulder. The child has to sit properly for the whole ride.
A toddler standing next to an empty convertible car seat

What are the Easy Elite Slim All-in-One Convertible Car Seat weight, height and age limits?

Cosco Easy Elite Slim All-in-One Convertible Car Seat limits by mode
ModeChild weightChild heightMinimum ageConditions
Rear-facing harness5 to 40 lb19 to 40 inNot published
Forward-facing harness30 to 65 lb34.4 to 49 inNot publishedManual: do not install with lower anchor belt for a child over 55 lb.
Belt-positioning booster40 to 100 lb43.4 to 52 inNot publishedManual: not certified for aircraft use in booster mode.

A child must meet every limit for the mode they use. The labels on your seat and its manual are the final word.

Easy Elite Slim All-in-One Convertible Car Seat specifications

Seat weight
Not published
Width
Not published
Usable life
10 years
Aircraft use
Certified for aircraft (see manual for which modes)
Headrest positions
8
Lower anchor max child weight
55 lb
Cup holders
2

How the Easy Elite Slim All-in-One Convertible Car Seat installs

Harness
5-point harness. Check the harness height at each growth spurt: at or below the shoulders rear-facing, at or above them forward-facing.

Every install is a fit between one seat and one vehicle. Read both manuals, and use a free inspection station if anything is unclear.

An empty car seat installed on a back seat, seen through an open car door

Will it fit your car?

Cosco does not publish a width for this seat, so measure your back seat and compare it with the seat in a store before buying.

  • Check your vehicle manual for lower anchor positions and any head-restraint rules.
  • Rear-facing seats need front-seat room: try the install behind the driver before you commit.
  • Certified for aircraft use, so it can travel as a seat rather than checked baggage.

What features does the Easy Elite Slim All-in-One Convertible Car Seat have?

  • 5-point harness
  • 1-hand adjustable harness
  • 8-position headrest
  • No-rethread harness
  • Top tether (forward-facing)
  • Meets federal side impact standard
  • Certified for aircraft use in rear- and forward-facing harness modes

Colors listed in the US

Grey Glyphs, Blue Pistons, Framboise.

Is the Easy Elite Slim All-in-One Convertible Car Seat recalled?

No campaign in the current NHTSA child-restraint data names this model family, and I have not run a separate review for it. Check your seat’s model number and date of manufacture before use.

NHTSA recall search · Recent car seat recalls

Before you buy

  1. Weigh and measure your child. The limits above are the manufacturer’s, and a child has to meet all of them for the mode they will use.
  2. Confirm the exact version. Colors, retail exclusives and model numbers change limits more often than you would expect; Cosco lists 3 colors of this seat.
  3. Read the manual before you buy, not after. It is linked above and holds the fit rules, the install methods and the expiry.
  4. Check recalls by model number and date of manufacture, and register the seat with Cosco so you hear about the next one.

Sources

Other Cosco convertible car seats

ModelTop child weightSeat weightWidthUsable life
Easy Elite Slim All-in-One Convertible Car Seat (this seat)100 lb10 years
Scenera Extend Convertible Car Seat50 lb8 years
Entrada Convertible Car Seat65 lb10 years