Safety 1st TriFit TriMate User manual

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(US and Canada Only.
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Email Us: [email protected]
Give Us a Call: 1-800-544-1108
(Toll Free, US and Canada Only)
Replacement Parts List
(on select models)
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.
• Buckle Assembly
• Chest Clip
• Seat Pad Set
• Removable Cup Holder(s)
• Lower Anchor Belt
• Top Tether
• Locking Clip
• Instructions

TriFit
TriMate
All-in-One
Convertible
Car Seat
KEEP INSTRUCTIONS FOR FUTURE USE.
Read all instructions before
using this car seat.
WARNING Failure to follow the
warnings on the labels and in the
instruction manual can result in
serious injury or death
to your child.
4358-8316
2.2.23
Your model may look dierent than one shown on cover.

Your child’s safety is worth the time it will take to read
and follow these instructions.
Ready? Let’s go!
Pages 1-3 will introduce you to the parts of the car seat.
The Back Cover of this Manual has our contact information.
If at any point you would like assistance, please feel free to reach
out to us.
Welcome to the Safety 1st 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

Install Car Seat
into Your Vehicle
Secure Your Child
in Car Seat
©2023 Dorel Juvenile Group, Inc. Safety 1stTM and the Safety 1st logo and design are
trademarks of Dorel Juvenile Group, Inc. [phone] www.safety1st.com. Styles and
colors may vary. Los estilos y los colores pueden variar. Made in CHINA. Hecho en CHINA.
Distributed by (distribuido por) 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]

Contents
1 Getting Started
1 Parts of Car Seat
3 Accessory Use
4 Choosing Car Seat Mode
6 Rear-Facing Section
8 Rear-Facing Child Fit
10 Rear-Facing Vehicle Install
16 Forward-Facing Section
18 Forward-Facing Child Fit
20 Forward-Facing Vehicle Install
27 Securing Child in Car Seat
30 Booster Seat Section
32 Storing Harness System
35 Booster Seat Use in Vehicle
38 Booster Seat Child Fit
39 Making Adjustments to Car Seat
39 Changing Headrest/Harness Height
40 Changing Buckle Position
42 Buckle Adjustments
for Smaller Infants
44 Reclining Car Seat

45 Wash & Care
45 Removing Seat Pad Set
47 Cleaning Parts of Car Seat &
Installing Seat Pad Set
48 Installing Harness System
53 LATCH & Vehicle Belt Information
53 LATCH: Lower Anchor Belt
55 Vehicle Belts
59 Top Tether
60 Safety Information
60 Child Restraint Use
61 Vehicle Seating Position
62 Installation in Vehicle
63 Replacement & Expiration
64 Registration & Safety Notices
65 Aircraft Information
66 Warranty

1Parts of Car Seat
LATCH: Lower Anchor Belt
(Bag May Be in
Forward-Facing Belt Path)
Headrest/
Harness
Adjustment
Handle
Harness
Release
Lever
(in opening)
Harness
Adjustment
Strap
Chest Clip
Harness System Detail
Adjustable
Headrest
*See page 3 for Accessory Use.
Removable
Cup Holders*
Buckle
Harness
Straps
Body Pillow*
Shoulder
Harness
Slots
Buckle
Cover*
Harness Covers*
Recline
Handle

2
Forward-
Facing
Belt Path
Rear-Facing
Level Line
Rear-Facing
Belt Path
Tether
Strap
Tether
Storage
Attachment
Splitter
Plate
Shell
(car seat)
Base
LATCH: Lower
Anchor Belt
Storage
Attachments
Tether
Strap
Adjuster
Instruction
Manual
Storage
(stored in
base)

Harness Covers (on select models)
For Use in Rear-Facing Mode or Forward-
Facing Mode
The harness covers help provide comfort to your
child’s 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 infant, remove and
do not use. Store until your child is large enough to use the harness
covers while maintaining a properly fitting harness.
To remove, pull the fastening strips apart and pull the harness covers
off of the harness straps.
3Accessory Use
Body Pillow (on select models)
For Use in Rear-Facing Mode Only
To remove, slide it out from behind the harness
straps.
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.
Buckle Cover (on select models)
For Use in Rear-Facing Mode or
Forward-Facing Mode
To remove, undo the buckle and pull
the buckle cover off of the buckle.

4
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:
continued on next page

5
Rear-Facing Mode
5-40 lb (2.3-18 kg) and
19-40 in. (48-101.6 cm)
Rear-Facing Section
PAGE 6
Rear-Facing Child Fit
PAGE 8
Rear-Facing Vehicle Install
PAGE 10
Booster Seat Mode
40-100 lb (18.1-45.4 kg) and
43-52 in. (110.1-132.1 cm)
Booster Seat Section
PAGE 30
Storing Harness System
PAGE 32
Booster Seat Use in Vehicle
PAGE 35
Booster Seat Child Fit
PAGE 38
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 16
Forward-Facing Child Fit
PAGE 18
Forward-Facing Vehicle Install PAGE 20

6
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 pages 8-9.
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 8
Rear-Facing Vehicle Install: Page 10
Rear-Facing Section
5-40 lb (2.3-18 kg) and
19-40 in. (48-101.6 cm)
Children under 1 year of age MUST ride Rear-Facing.
continued on next page

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).
7
WARNING:

8
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
1
2
1
2
1
2
Undo Chest Clip
& Buckle
It may be easier to undo
the buckle by pressing in
towards the top of the
button.
Fully Loosen
Harness Straps
Push down on the harness
release lever (through the
opening in the pad) while
pulling out on the harness
straps as shown.
1
2
3
Rear-Facing
Child Fit
continued on next page

1
2
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.
Check Harness
Strap Position
The harness strap MUST
be at or slightly below
the shoulders; never above.
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.
4
5
6
9
To change the harness strap height, see page 39.
To change the buckle position, see page 40.
To learn how to check harness tightness, see pages 27-29.
If you cannot achieve a snug harness fit for your child,
see pages 39-43.
1
2
1
2
Buckle
Buckle
Strap

10
Before installing the car seat in your vehicle, check to see if you
need to adjust the buckle position for your child.
See pages 8-9 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:
continued on next page
1
2
1
Recline Car Seat

1
2
1
2
1
2
1
2
11
Pull Seat Pad Off
Front of Car Seat &
Place Car Seat
Rear-Facing in
Back Seat
The car seat base MUST be
flat on the vehicle seat.
2
Locate Rear-Facing
Belt Path & Route
Vehicle Belt or
Lower Anchor Belt
Through It
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.
1
2
3
OR
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
Pull the entire lower anchor
belt over to the child’s right
as shown.
Then route the hook on the
adjuster end through the
Rear-Facing Belt Path.

1
2
1
2
12
continued on next page
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.
4
Buckle Vehicle Belt
If your car has a switchable
retractor, use it to lock the
vehicle belt. Review page 57
of this manual or your vehicle
owner’s manual.
Attach Lower Anchor
Belt Hooks to Vehicle’s
Lower Anchors
5
OR
Finished Lower
Anchor Belt Routing
The lower anchor belt adjuster MUST
be on the child’s left.
1
2
1
2
Adjuster
1
2
1
2

13
Tighten Belt
Place your hand in the car
seat and firmly push the car
seat down and back towards
the vehicle seat.
Pull the belt towards you and
parallel (in line) with the belt
path as shown.
For the LATCH belt or Lap
Only Vehicle Belt: it may
be easier to tighten if you
route the free end of the belt
back into the Rear-Facing
Belt Path, reach into the
Rear-Facing Belt Path, and
pull the free end of the belt
towards you.
7
6
Check Belt
Tightness
Hold the Rear-Facing Belt
Path with your non-dominant
hand. Push and pull the car
seat from side to side.
The car seat should not move
more than 1 in. (2.5 cm) at
the belt path.
8
Tuck Car Seat Pad
Around Front of Car
Seat & Check Rear-
Facing Level Line
1
2
1
2
1
2
1
2

If the car seat moves more than 1 in. (2.5 cm), you can try:
• Pulling the belt tighter; OR
• Reinstalling the car seat; OR
• Changing to a different seating location; OR
• Switching to a different install method (LATCH or vehicle belt).
continued on next page
14
Secure Child in
Car Seat
See pages 27-29.
9
10 Recheck
Rear-Facing
Level Line
Redo the installation if the
car seat is not reclined
correctly for your child.
Only if necessary, you may place a
tightly rolled towel(s) or foam pool
noodle(s) under the front of the car
seat base to help make the Rear-
Facing Level Line parallel with the
ground.
Check often to make sure padding is
still in place and the belt is tight.
1
2
1
2
1
2