Safety 1st Grow and Go Extend N Ride User manual

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Email Us: [email protected]
Give Us a Call: 1-800-544-1108
(Toll Free, US and Canada Only)
Grow and Go Extend N Ride, LX
All-in-One Convertible Car Seat
Your model may look dierent 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.
4358-8174 10.8.21
• Buckle Assembly
• Chest Clip
• Seat Pad Set
• Removable Cup Holder(s)
• Removable Snack Lid
• Removable Snack Tray
• 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)

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 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
Install Car Seat
into Your Vehicle
Adjust Car Seat to
Fit Your Child
Secure Your Child
in Car Seat

Contents
1 Getting Started
1 Parts of Car Seat
3 Accessory Use
5 Choosing Car Seat Mode
7Rear-Facing Section
9 Rear-Facing Child Fit
11 Rear-Facing Vehicle Install
18 Forward-Facing Section
20 Forward-Facing Child Fit
22 Forward-Facing Vehicle Install
50 Wash & Care
50 Removing Seat Pad Set
52 Cleaning Parts of Car Seat &
Installing Seat Pad Set
53 Vehicle Belt & LATCH Information
53 LATCH: Lower Anchor Belt
55 Vehicle Belts
59 Top Tether
29 Securing Child in Car Seat
32 Booster Seat Section
34 Storing Harness System
37 Booster Seat Use in Vehicle
40 Booster Seat Child Fit
41 Making Adjustments to Car Seat
41 Changing Headrest/Harness Height
42 Changing Buckle Position
44 Harness System Adjustments
for Smaller Infants
48 Reclining Car Seat
49 Using Footrest
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
©2021 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 USA from American and imported parts (including seat pad). Hecho en EE.UU. a partir de
piezas americanas e importadas (incluyendo la almohadilla del asiento). 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]

Adjustable Headrest
Easy Out Harness Covers*
Removable Cup Holders
& 1 Snack Lid*
Harness Release Lever
(through opening in pad)
Harness Adjustment Strap
LATCH: Lower
Anchor Belt
(bag may be in the
Forward-Facing
Belt Path)
Head Pillow*
Body Pillow*
Harness System
*See pages 3-4 for Accessory Use. *See pages 3-4 for Accessory Use.
Buckle Cover*
Lower Shoulder
Harness Slots for
Smaller Infants
Forward-
Facing
Belt Path
Rear-Facing
Level Line
Base
Rear-
Facing
Belt Path
LATCH: Lower Anchor
Belt Storage Attachments
Tether Strap
Tether Storage Attachment
Instruction Manual Storage
Harness Strap Splitter Plate
Tether Strap Adjuster
Recline Handle
Adjustable Footrest
Headrest/Harness
Adjustment Handle
1 2
Parts of Car Seat
Chest Clip
Buckle
Harness Straps
Upper Shoulder
Harness Slots
Your model may look dierent than one shown.

Head Pillow & Body Pillow
Only For Use in
Rear-Facing Mode
The head and body pillows
must be used together.
To remove head pillow, pull
it out from behind the body
pillow.
To remove body pillow, undo
the buckle and pull it through
the slot in the pillow. Slide the
pillow out from behind the
harness straps.
If using the lower shoulder
harness slots for smaller
infants, see page 45-47.
3 4
Accessory Use
Removable Cup Holder(s),
Snack Lid, & Snack Tray
(on select models)
For Use in All Modes
The cup holder(s), snack lid,
and snack tray are top-rack
dishwasher safe.
To remove cup holder, twist the
cup holder counterclockwise. Pull
it out of the slot in the car seat.
To remove snack lid, pull it off
the top of the cup holder.
To remove snack tray, locate
the 2 tabs underneath of the
snack tray. Squeeze them
together and lift the snack tray
out of the slot in the car seat.
Buckle Cover
For Use in Rear-Facing Mode or
Forward-Facing Mode
To remove, undo the buckle and pull
the buckle cover off the buckle.
Easy Out Harness Covers
(on select models)
For Use in Rear-Facing Mode or
Forward-Facing Mode
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
them and DO NOT use.
Store them until your child is large
enough to use the harness covers while
maintaining a properly fitting harness.
Front
Back
Snack Tray
Cup Holder
To remove, undo the fasteners on
the headrest pad. Pull the fastening
strips on the covers apart. Slide
the covers out from behind the
headrest pad.
To install, undo the fasteners on
the headrest pad. With the back of
the harness covers facing you, slide
them behind the headrest pad. Fold
harness covers down towards you.
Place the harness straps into the
covers. Fasten the harness covers.

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.
Booster Seat Mode
40-100 lb (18.1-45.4 kg) and
43-52 in. (110.1-132.1 cm)
Booster Seat Section
PAGE 32
Storing Harness System
PAGE 34
Booster Seat Use in Vehicle
PAGE 37
Booster Seat Child Fit
PAGE 40
Rear-Facing Mode
5-40 lb (2.3-18 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 11
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 18
Forward-Facing Child Fit
PAGE 20
Forward-Facing Vehicle Install
PAGE 22
Choosing Car Seat Mode
5 6
WARNING:

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 11
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).
Rear-Facing Section
7 8
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.
WARNING:

1
2
Check Harness
Strap Position
The harness strap MUST
be at or slightly below the
shoulders; never above.
Check Buckle Position
• Use the slot closest to your child.
• The buckle should not be
underneath or behind your child.
Do not use 3rd slot in Rear-Facing
Mode.
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.
Undo Chest Clip
& Buckle
Place Child in
Car Seat
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 4 5 6
Rear-Facing Child Fit
9 10
To change the harness
strap height, see page 41.
To change the buckle
position, see page 42.
To learn how to check
harness tightness, see
pages 29-30.
If you cannot achieve a
snug harness fit for your
child, see pages 44-47.
Buckle
Strap
Buckle

Place Car Seat Rear-
Facing in Back Seat
The car seat base must be
flat on the vehicle seat.
Rotate Footrest
Out of Way For Now
You will make adjustments to the
footrest AFTER the car seat is
installed.
For more information about
using the footrest, see page 49.
Recline Car Seat &
Check Rear-Facing
Level Line
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 3
Rear-Facing Vehicle Install
11 12
continued on next page
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.
OR
Recline handle is at
front of car seat.
continued on next page
WARNING:

Locate Rear-Facing Belt Path and
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.
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 belt.
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
continued on next page
13 14
Finished Lower
Anchor Belt
Routing
The adjuster can be
on either side of the
car seat.
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.
4
OR
5 6 7
OR
Adjuster