MaxiCosi Pria Max User manual

Send Us a Text: 1-812-652-2525
(US and Canada Only. Carrier Fees May Apply)
Find Us Online: www.maxicosi.com
Email Us: [email protected]
Give Us a Call: 1-800-951-4113
(Toll Free, US and Canada Only)
• Buckle Assembly
• ClipQuickTM Chest Clip
• Seat Pad Set
• Removable Cup Holder (1)
• Lower Anchor Belt
• Top Tether
• Locking Clip
• Instructions
For parts availability and
questions, call, text, or chat.
If requested color is not
available, similar color will be
substituted.
Applicable tax and shipping &
handling will also be added.
Replacement Parts List
(on select models)

4358-8198 4.27.22
Pria 3 in 1
Pria Max
Pria Max All-in-One
Convertible Car Seat
Your model may look different than one shown on cover.
Read all instructions BEFORE USING this car seat.
KEEP INSTRUCTIONS FOR FUTURE USE.
Failure to follow the warnings on
the labels and in the instruction manual can
result in serious injury or death to your child.

Welcome to the
Maxi-Cosi Family!
Thank you for
choosing this car
seat, also known as
a child restraint!
To help you get started
using your child’s new
car seat, here are the
4 main tasks you’ll
need to complete.
Measure
Your Child
Adjust Car Seat to
Fit Your Child
Your child’s safety is
worth the time it will
take to read and follow
these instructions.
Ready? Let’s go!
Pages 1-4 will introduce
you to the parts of the car
seat.
The back cover of this
manual and page 65 has
our contact information.
If at any point you would
like assistance, please feel
free to reach out to us.

Install Car Seat
into Your Vehicle
Secure Your Child
in Car Seat
Your child’s safety is
worth the time it will
take to read and follow
these instructions.
Ready? Let’s go!
Pages 1-4 will introduce
you to the parts of the car
seat.
The back cover of this
manual and page 65 has
our contact information.
If at any point you would
like assistance, please feel
free to reach out to us.

Contents
1 Getting Started
1 Parts of Car Seat
3 Accessory Use
5 Choosing Car Seat Mode
7 Rear-Facing Section
9 Rear-Facing Child Fit
12 Rear-Facing Vehicle Install
19 Forward-Facing Section
21 Forward-Facing Child Fit
23 Forward-Facing Vehicle Install
29 Securing Child in Car Seat
33 Booster Seat Section
35 Storing Harness System
39 Booster Seat Use in Vehicle
41 Booster Seat Child Fit
42 Making Adjustments to Car Seat
42 Changing Headrest/Harness Height
43 Changing Buckle Position
45 Buckle Adjustments for Smaller Infants
46 Reclining Car Seat

©2022 Dorel Juvenile Group, Inc. [phone] www.maxicosi.com. Styles and colors may vary. Les styles et les couleurs peuvent varier. Made in USA from American
and imported parts (including seat pad). Fabriqué aux ÉTATS-UNIS. Distributed by (distribué par) Dorel Juvenile Group, Inc., 2525 State St., Columbus, IN 47201-7494.
Dorel Juvenile Canada, 2233 Argentia Road, Suite 110, Mississauga, ON L5N 2X7. Importado y Distribuido en Chile por: Comercial e Industrial Silfa S.A. - San Ignacio
0201 / Parque Industrial Portezuelo Quilicura, Santiago Chile. Fono (562) 2339 9000. En Perú por: Comexa S.A. - Los Libertadores 455 – San Isidro, Lima – Perú. Fono
(511) 4469014. En Centro América, Caribe y Ecuador por: Best Brands Group S.A. – Av. Balboa, Bay Mall Plaza, Planta Baja, local 9, Panamá. - Fono: [phone].
En Colombia por: Baby Universe S.A.S. Vía 40 No. 77-29, Barranquilla, Colombia - Fono: [phone] Importador: DJGM, S.A. DE C.V. Gabriel
Mancera No. 1041 Col. Del Valle, Benito Juárez C.P. 03100 México, Ciudad de México R.F.C. DJG140305GN9 Tel. [phone]
47 Wash & Care
47 Removing Seat Pad Set
51 Cleaning Parts of Car Seat &
Installing Seat Pad Set
52 LATCH & Vehicle Belt Information
52 LATCH: Lower Anchor Belt
54 Vehicle Belts
58 Top Tether
59 Safety Information
59 Child Restraint Use
60 Vehicle Seating Position
61 Installation in Vehicle
62 Replacement & Expiration
63 Registration & Safety Notices
64 Aircraft Information
65 Warranty

Parts of Car Seat 1
Pria 3 in 1
Pria Max
Pria 3 in 1
Pria Max
Adjustable Headrest
EZ Out Harness Covers*
In and Out Harness Holders
(on select models)
Harness Release Lever
(through opening in pad)
Head Pillow*
Back Pillow*
Recline Handle (under pad)
Harness Adjustment Strap
Headrest/Harness
Adjustment Handle
LATCH: Lower Anchor Belt
(bag may be in the Forward-
Facing Belt Path)
Small Infant Positioning Pillow*
Removable Cup Holders*
Your model may look dierent than one shown. *See pages 3 - 4 for Accessory Use.

2
Harness System
Pria 3 in 1
Pria Max
Pria 3 in 1
Pria Max
Forward-
Facing
Belt Path
Rear-Facing
Level Line
Base
Rear-Facing
Belt Path
Pria 3 in 1
Pria Max
LATCH: Lower
Anchor Belt
Storage
Attachments
Tether Strap
Tether Storage
Attachment
Instruction
Manual Storage
Harness Strap
Splitter Plate
Tether Strap
Adjuster
Shoulder
Harness Slots
(behind
harness
covers)
ClipQuikTM
Chest Clip
Harness
Straps
EZ Out Buckle
Cover*
Buckle
Your model may look dierent than one shown. *See pages 3 - 4 for Accessory Use.
*See pages 3 - 4 for Accessory Use.

Small Infant Positioning Pillow
Only For Use in Rear-Facing
Mode
When using the small infant
positioning pillow, you must also
use the back and head pillows.
This pillow helps position your infant in the seat in order to
achieve proper harness fit.
To determine if the pillow is needed:
1. Place headrest in lowest position.
2. Place infant in car seat without the pillow.
3. Make sure the infant’s bottom and back are flat against
the car seat.
Check often to see how much your infant has grown.
Accessory Use 3
Remove the infant pillow once they can sit in the car seat
without the infant pillow and the harness slots are at or
below their shoulders AND you can still achieve a snug
harness fit.
To remove, lift the infant pillow up and pull the buckle &
buckle cover down out of the buckle slot in the infant pillow.
To install, feed the buckle & buckle cover up into the 1st or
2nd buckle slot in the infant pillow, matching the buckle slot
in the car seat.
To learn how to check buckle position, see page 11.
To learn how to check harness tightness, see pages
29-31.
EZ Out Harness Covers
For Use in Rear-Facing Mode or
Forward-Facing Mode
Harness covers help provide comfort to
the neck. If the harness covers will not
allow proper positioning of the chest clip
or interfere with getting a tight enough
harness fit for a smaller baby, remove and
do not use.
Store until your child is large enough
to use these harness covers while main-
taining a properly fitting harness.
To remove, undo fasteners on headrest
pad. Pull the fastening strips on covers
apart. Pull harness straps out of covers.
Slide covers out from behind headrest pad.
To install, undo fasteners on headrest. With the back of the
harness covers facing you slide covers behind headrest pad.
Place harness straps into covers. Fasten harness covers.
Front View
Back View
EZ Out Buckle Cover
To install,slide buckle into opening in
front of buckle cover.
NOTE: Slide buckle cover only through slot
in pad and not through buckle slot in shell.
It lays flat underneath the pad as shown.
To remove, pull up on buckle cover and
slide it off of the buckle and pull it out of
the buckle slot in the seat pad.
Head Pillow & Back Pillow
(on select models)
Only For Use in Rear-Facing Mode
The head and back pillows MUST be
used together.
To remove head pillow, pull it out from
behind the back pillow.
To remove back pillow, loosen the
harness straps and slide pillow out from
behind the harness straps.

Small Infant Positioning Pillow
Only For Use in Rear-Facing
Mode
When using the small infant
positioning pillow, you must also
use the back and head pillows.
This pillow helps position your infant in the seat in order to
achieve proper harness fit.
To determine if the pillow is needed:
1. Place headrest in lowest position.
2. Place infant in car seat without the pillow.
3. Make sure the infant’s bottom and back are flat against
the car seat.
Check often to see how much your infant has grown. 4
Removable Cup Holder(s)
(on select models)
For Use in All Modes
The cup holder(s) is top-rack
dishwasher safe.
To remove cup holder, twist the cup
holder counterclockwise. Pull it out
of the slot in the car seat.
Remove the infant pillow once they can sit in the car seat
without the infant pillow and the harness slots are at or
below their shoulders AND you can still achieve a snug
harness fit.
To remove, lift the infant pillow up and pull the buckle &
buckle cover down out of the buckle slot in the infant pillow.
To install, feed the buckle & buckle cover up into the 1st or
2nd buckle slot in the infant pillow, matching the buckle slot
in the car seat.
To learn how to check buckle position, see page 11.
To learn how to check harness tightness, see pages
29-31.
Use Pillow
if Shoulder
Harness Slots
are Above
Shoulders
Do Not Use
Pillow
if Shoulder
Harness Slots
are At or Below
Shoulders
EZ Out Harness Covers
For Use in Rear-Facing Mode or
Forward-Facing Mode
Harness covers help provide comfort to
the neck. If the harness covers will not
allow proper positioning of the chest clip
or interfere with getting a tight enough
harness fit for a smaller baby, remove and
do not use.
Store until your child is large enough
to use these harness covers while main-
taining a properly fitting harness.
To remove, undo fasteners on headrest
pad. Pull the fastening strips on covers
apart. Pull harness straps out of covers.
Slide covers out from behind headrest pad.
To install, undo fasteners on headrest. With the back of the
harness covers facing you slide covers behind headrest pad.
Place harness straps into covers. Fasten harness covers.
EZ Out Buckle Cover
To install,slide buckle into opening in
front of buckle cover.
NOTE: Slide buckle cover only through slot
in pad and not through buckle slot in shell.
It lays flat underneath the pad as shown.
To remove, pull up on buckle cover and
slide it off of the buckle and pull it out of
the buckle slot in the seat pad.

Your child’s height, weight, and age determine how the car
seat should be placed in the vehicle.
Children vary widely in body size, shape, and temperament—
please consult your doctor before switching between
any modes within the limits and fit requirements of the
car seat.
State Laws
Please be certain to follow your state’s laws regarding car
seat use.
American Academy of Pediatrics
Recommendations
Infants and Toddlers
Should ride in a rear-facing car seat as long as possible, until
they reach the highest weight or height allowed by their car seat.
Toddlers and Preschoolers
Once they are facing forward, children should use a forward-
facing car seat with a harness for as long as possible, until they
reach the height and weight limits for their car seats.
School-Aged Children
Once they have outgrown their forward-facing car seat, children
should use a belt-positioning booster seat until the vehicle’s
lap and shoulder seat belt fits properly. This is often when they
have reached at least 4 feet 9 inches in height and are 8 to 12
years old.
Older Children
All children younger than 13 years should be restrained in the
rear seats of vehicles for optimal protection.
Measure your child’s weight and height
(DO NOT guess) before choosing this car
seat’s mode.
Choosing Car Seat Mode
WARNING:
5

American Academy of Pediatrics
Recommendations
Infants and Toddlers
Should ride in a rear-facing car seat as long as possible, until
they reach the highest weight or height allowed by their car seat.
Toddlers and Preschoolers
Once they are facing forward, children should use a forward-
facing car seat with a harness for as long as possible, until they
reach the height and weight limits for their car seats.
School-Aged Children
Once they have outgrown their forward-facing car seat, children
should use a belt-positioning booster seat until the vehicle’s
lap and shoulder seat belt fits properly. This is often when they
have reached at least 4 feet 9 inches in height and are 8 to 12
years old.
Older Children
All children younger than 13 years should be restrained in the
rear seats of vehicles for optimal protection.
Rear-Facing Mode
4-40 lb (1.8-18 kg) and
19-40 in. (48-101.6 cm)
Rear-Facing Section
PAGE 7
Rear-Facing Child Fit
PAGE 9
Rear-Facing Vehicle Install
PAGE 12
Forward-Facing Mode
22-65 lb (10.1-29 kg) and
29-49 in. (73.6-125 cm) and
at least 1 year old
Forward-Facing Section
PAGE 19
Forward-Facing Child Fit
PAGE 21
Forward-Facing Vehicle Install
PAGE 23
6
Booster Seat Mode
40-100 lb (18.1-45.4 kg) and
43-52 in. (110.1-132.1 cm)
Booster Seat Section
PAGE 33
Storing Harness System
PAGE 35
Booster Seat Use in Vehicle
PAGE 39
Booster Seat Child Fit
PAGE 41

In this car seat, your child can remain Rear-Facing
until they outgrow any one of the following:
• Weight Limit: 40 lb (18 kg); OR
• Height Limit: 40 in. (101.6 cm); OR
• Rear-Facing Child Fit requirements, see page 9.
Before installing the car seat in your vehicle, check your
child’s fit in the car seat.
This way you won’t have to redo the vehicle installation to
make adjustments to the car seat.
Rear-Facing Child Fit: Page 9
Rear-Facing Vehicle Install: Page 12
Rear-Facing Section
4-40 lb (1.8-18 kg) and 19-40 in. (48-101.6 cm)
Children under 1 year of age MUST ride Rear-Facing.
7

In this car seat, your child can remain Rear-Facing
until they outgrow any one of the following:
• Weight Limit: 40 lb (18 kg); OR
• Height Limit: 40 in. (101.6 cm); OR
• Rear-Facing Child Fit requirements, see page 9.
Before installing the car seat in your vehicle, check your
child’s fit in the car seat.
This way you won’t have to redo the vehicle installation to
make adjustments to the car seat.
Rear-Facing Child Fit: Page 9
Rear-Facing Vehicle Install: Page 12
NEVER install a rear-
facing child restraint
in the front seat of a
vehicle equipped with
an active frontal airbag.
DO NOT use the tether for rear-
facing mode. Secure the tether strap
hook to its storage attachment.
DO NOT use the lower anchor belt
along with the vehicle lap or lap/
shoulder belt.
DO NOT fasten multiple lower
anchor hooks on the same lower
anchor bar in the vehicle.
Check the vehicle belt or the lower
anchor belt before each use. Use
ONLY if the belt can be tightened
properly and locked securely in
place.
Even when unoccupied, this child
restraint MUST be firmly secured
to the vehicle with the lower anchor
belt or with the vehicle seat belt.
This child restraint MUST ALWAYS
face the rear of the vehicle until
the child is at least 1 year old and
weighs 22 lb (10 kg).
WARNING:
8

1
2
1
2
1
2
1
2
1 2
Rear-Facing Child Fit 9
Fully Loosen Harness Straps
Place your hand between
the harness cover &
harness strap.
You may need to undo the
harness cover or move the
chest clip down.
Push down on harness
release lever (through
opening in pad) while
pulling out on harness
straps as shown.
Release Chest Clip
Hold the chest clip with
both hands and press in
on the top and bottom
buttons with your index
finger and thumb as
shown.
While holding the buttons
in, pull the right (top) half
of the clip apart from
the left (bottom) half to
release the magnet and
separate the chest clip.

Place your hand between
the harness cover &
harness strap.
You may need to undo the
harness cover or move the
chest clip down.
Push down on harness
release lever (through
opening in pad) while
pulling out on harness
straps as shown.
Hold the chest clip with
both hands and press in
on the top and bottom
buttons with your index
finger and thumb as
shown.
While holding the buttons
in, pull the right (top) half
of the clip apart from
the left (bottom) half to
release the magnet and
separate the chest clip.
On select models: You may
use the In and Out Harness
Holders to place the harness
straps out of the way.
Your child’s bottom and
back should be flat against
the car seat.
Place Child in Car Seat
1
2
4
1
2
Undo Buckle
3
1
2
Check Head Position
The top of your child’s head
MUST be at least 1 in.
(2.5 cm) below the top of
the car seat’s headrest.
5
10
continued on next page

Rear-Facing Vehicle Install
Check Buckle Position
• Use the slot closest to your child.
• The buckle should not be
underneath or behind your child.
DO NOT use the 3rd buckle slot in
Rear-Facing Mode.
1
2
1
2
Check Harness
Strap Position
The harness strap MUST
be at or slightly below
the shoulders; never
above.
6 7
Buckle
Strap
Buckle
To change the harness
strap height, see page
42.
To change the buckle
position, see page 43.
To learn how to check
harness tightness, see
pages 29-31.
If you cannot achieve
a snug harness fit for
your child, see page 45.
11

Before installing the car seat in your
vehicle, check to see if you need to
adjust the buckle position for your
child. See page 9 for child fit.
Once the car seat is installed, you
will not be able to adjust the buckle
position.
Review Vehicle Owner’s Manual
Determine what kind of vehicle
belts your car has and how to use
them to lock a car seat in place OR
where LATCH: lower anchor seating
positions are located in your vehicle.
There are 2 different methods for install.
Use only one:
Vehicle Belt
DO NOT use both the LATCH: lower anchor belt and vehicle
belt at the same time to install the car seat.
LATCH: Lower Anchor Belt
1
2
1
2
Rear-Facing Vehicle Install
OR
WARNING:
12
continued on next page

Place Car Seat Rear-
Facing in Back Seat
The car seat base MUST be
flat on the vehicle seat.
1
2
1
For children who cannot sit up
unassisted, the Rear-Facing
Level Line on the car seat MUST
be parallel with the ground using
either Position 3 or 2.
For children who can sit up
unassisted, you may make the car
seat more upright in Position 2.
1
2
Recline Car Seat &
Check Rear-Facing
Level Line
1
2
2
Recline handle is at
front of car seat.
13

Locate Rear-Facing Belt Path & Route
Vehicle Belt or Lower Anchor Belt Through It
Vehicle Belt or Lower
Anchor Belt Goes:
• under the car seat pad; AND
• across the car seat; AND
• in front of the buckle; AND
• out the other Rear-Facing
Belt Path opening.
DO NOT twist the belt.
For the LATCH belt: You may need to fully lengthen the belt before routing it into
the belt path. Squeeze the adjuster button and pull the belt out as shown.
Thread the connector without the adjuster closest to it through the Rear-Facing
Belt Path opening as shown.
1
2
1
2
1
2
1
2
3
OR
4
1
2
1
2
For children who cannot sit up
unassisted, the Rear-Facing
Level Line on the car seat MUST
be parallel with the ground using
either Position 3 or 2.
For children who can sit up
unassisted, you may make the car
seat more upright in Position 2.
Recline Car Seat &
Check Rear-Facing
Level Line
14
continued on next page