Pick how you're putting it in. Each way is from the maker's manual.
Base with LATCH
Where it can go: Rear-facing only. Never in a seat with an active frontal airbag. Only on forward-facing vehicle seats, never side- or rear-facing seats. Do not use the lower anchor belt with the vehicle belt; do not fasten two connectors to one anchor bar. This base fits Mico Nxt, Mico AP, Mico 30 and Mico Max 30.
1Unhook the lower anchor connectors from the base by pressing the red button on each.
2Route the lower anchor belt through the base belt path, adjuster on the right side, without twisting it.
3Place the base rear-facing, centered between the vehicle anchors.
4Clip each connector (arrows up) onto the vehicle's lower anchors.
5Push the base down and back into the seat while pulling the free end of the belt tight.
6With your baby buckled in, click the car seat onto the base and check the level line.
Check it before you drive
Hold the base at the belt path and push side to side: it should not move more than 1 in. (2.5 cm).
Level line parallel with the ground; adjust the base (or a rolled towel or pool noodle under the front of the car seat) if not.
Pull up on the front corners of the car seat to make sure it is locked.
Retold from Maxi-Cosi manual (PDF). Your vehicle's manual also says which seats have LATCH anchors. When in doubt, a certified child passenger safety technician can check your install.
The carrier on and off the base
Clicking it onto the base
1Line up the slots on the sides of the car seat with the lock bars in the base.
2Push down firmly on the carry handle and the front of the seat until you hear a click.
3Pull up on the two front corners by your baby's feet to check it is locked.
The maker warns: If the car seat is not securely attached to the base, it can result in serious injury or death.
What Maxi-Cosi says about its bases and carriers, for a second car or an older base.
The spare Maxi-Cosi Infant Car Seat Base takes the Mico Pro, Mico Pro+, Mico Luxe, Mico Luxe+, Mico Max Plus, Mico Max 30, Mico XP Max and Mico 30 carriers. Maxi-Cosi product page
The Peri 180 has its own rotating base; the spare Peri 180 base is listed for the Peri 180 carrier. Maxi-Cosi product page
When it won't sit right: the maker's answers
No. The base is an accessory; the infant seat can be installed without it.
In narrow vehicle seats, or on a plane, you may get a more secure fit without the base.
Questions about installing the Mico AP (5)
Can I install the Maxi-Cosi Mico AP base with the seat belt instead of LATCH?+
Yes. Maxi-Cosi's manual gives steps for the base with LATCH and with the car's seat belt.
Rear-facing only. Never in a seat with an active frontal airbag. Only on forward-facing vehicle seats, never side- or rear-facing seats. Do not use the lower anchor belt with the vehicle belt; do not fasten two connectors to one anchor bar. This base fits Mico Nxt, Mico AP, Mico 30 and Mico Max 30.
How do I know the Maxi-Cosi Mico AP is installed right?+
Hold the base at the belt path and push side to side: it should not move more than 1 in. (2.5 cm). Level line parallel with the ground; adjust the base (or a rolled towel or pool noodle under the front of the car seat) if not. Pull up on the front corners of the car seat to make sure it is locked.
The spare Maxi-Cosi Infant Car Seat Base takes the Mico Pro, Mico Pro+, Mico Luxe, Mico Luxe+, Mico Max Plus, Mico Max 30, Mico XP Max and Mico 30 carriers.
