Graco Nautilus SnugLock Grow User manual

www.gracobaby.com
Read This Instruction Manual
3 - in - 1 Forward - Facing Harness Booster
Nautilus®SnugLock®Grow™
FAILURE TO PROPERLY USE THIS
CHILD RESTRAINT INCREASES THE
RISK OF SERIOUS INJURY OR DEATH
IN A SUDDEN STOP OR CRASH.
Do not install or use this child restraint
until you read and understand the
instructions in this manual.
NWL0001291154A 7/21

2
1-A Quick Guide to Your Manual
1-B Welcome to the Graco Family
1-C Right Mode of Use
1-D Before You Begin
Register This Car Seat
If You Need Help
Certification
Car Seat’s Useful Life
Vehicle Seat Protection
Warm Weather Use
1-E Safety Warnings
1 Important Pages 6-23

3
2 Features Pages 24-29
3-A Forward-Facing Use
3-B Install Forward-Facing with LATCH
3-C Install Forward-Facing with the Vehicle Seat Belt
3 Forward-Facing Pages 30-49
4-A Securing Child 5-Point Harness
4 Securing Child Pages 50-56

4
6 Accessories Page 83
5-A Booster Use
5-B Install Highback Booster
5-C Install Backless Booster
5-D Securing Child Highback Booster
5-E Securing Child Backless Booster
5 Booster Pages 57-82

5
7-A How to Uninstall Lower Anchor Connectors and Tether
7-B Choosing Vehicle Seat Location
7-C Unsafe Vehicle Seat Location
7-D Vehicle Seat Belts
7-E Aircraft Installation
8-A Cleaning Seat Pad
8-B Cleaning Buckle
8-C Cleaning Harness, Lower Anchor Attachment and Tether
7 Additional Information Pages 84-96
8 Care & Cleaning Pages 97-102

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6
1-A A Quick Guide to Your Manual
This car seat is for children: Forward-Facing: 22-65 lb (10-30 kg)
Highback Booster: 40-100 lb (18.1-45 kg)
Backless Booster: 40-120 lb (18.1-54 kg)
Cup holders MUST be installed.
Place the tab on the cupholder into the corresponding
slot on the base and rotate the cup up and into
position as shown. You will hear a “CLICK” when
they are secured in place.
Install Cup Holders (Adult Assembly Required)

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7
Get to Know Your Car Seat
What Seating Location Should I Use?
Review section 2-A to see all of the features of this car seat.
The best seating location for this car seat is one that:
• Is recommended by your vehicle owner’s manual, and
• Results in a secure installation of this car seat.
Some vehicles have specific requirements for where the car seat can be installed, so
be sure to check your vehicle owner’s manual for available seating positions, if any.
For example, sometimes the center rear seat has a lap belt only vehicle seat belt, which
cannot be used when this car seat is in Booster mode.
Review section 7-B, 7-C and 7-D of this manual AND your vehicle owner’s manual.

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8
According to accident statistics, children are safer
when properly restrained in the rear seating positions
than in the front seating positions. The center of the
back seat can be the safest during a possible side
impact.
Which Installation Method Should I Use?
This car seat can be installed in your vehicle using either the vehicle seat belt OR the
lower anchor attachment. Both are equally safe to use. INSTALL USING ONLY ONE
METHOD. Graco allows the securing of the car seat with LATCH system in the booster
mode, only if the vehicle manufacturer allows it. The child still MUST BE SECURED with
the vehicle lap/shoulder seat belt.
Vehicle Seat Belt: Review section 7 and your vehicle owner’s manual to learn how to
install your car seat with the vehicle seat belts.
LATCH or Lower Anchor Attachment: The LATCH system or lower anchor
attachment allows you to securely attach your safety seat in your car without using the
vehicle seat belt and possibly to get a better fit. All 2003 and newer model year vehicles
are required to have a LATCH system, although some manufacturers began including
LATCH earlier. Some vehicle owner manuals use the term ISOFIX to identify the LATCH
system.

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9
LATCH consists of lower anchors and a tether anchor, which are built in to your vehicle,
and a lower anchor attachment and a tether that are built in to your car seat. The lower
anchor attachment is used INSTEAD of the vehicle’s seat belt to secure the child seat
to the vehicle. The tether is used IN ADDITION to the lower anchor attachment OR the
vehicle’s seat belt to secure a forward-facing car seat to the vehicle.
Review your vehicle owner’s manual for exact location and use.
What is LATCH?
Vehicle’s Tether
Anchor
Vehicle’s Lower
Anchor
Typical seat in a passenger
vehicle. Other vehicle types may
have different lower anchor and
tether anchor locations.
Vehicle Seat Bight
11”
(28 cm)

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When Installing Forward-Facing
Lower Anchor Attachment
The lower anchor attachment consists of lower
anchors, which are built in to your vehicle, and
lower anchor connectors that are built in your car
seat.
Review section 3-B of this manual AND your vehicle
owner’s manual before installing.
Lower anchor attachment can ONLY be used if
the vehicle lower anchor spacing is 11 inches
(28 cm) from the center of one lower anchor to
the center of the other lower anchor.

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11
Vehicle Seat Belt
There are two types of vehicle seat belts
that can be used. Lap/Shoulder Seat Belt
or Lap Only Seat Belt.
Review section 3-C and 7 of this manual
AND your vehicle owner’s manual before
installing.
Vehicle Seat Belt
Only use the Lap/Shoulder seat belt
configuration.
Review section 5-B, 5-C, 5-D, 5-E, and 7
of this manual AND your vehicle owner’s
manual.
When Installing Forward-Facing (continued)
When Installing As a Booster

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Does Your Car Seat Fit Your Child Correctly?
To make sure your child is secured properly, review section 3, 4 and 5 to
understand all of the actions you need to take to properly adjust the car
seat to fit your child.
Harness Height, Forward-Facing
Harness straps at or just above the child’s
shoulders (A) and top of child’s ears below
top of headrest (B). Review section 4.
Buckle Position (C)
The correct slot is the one that is closest to
your child without being underneath them.
Review section 4.
Harness Tightness (D)
If your fingers slide off the harness straps
without pinching the straps, it is tight enough.
Review section 4.
For Forward-Facing, You Need to Adjust:
A
C
B
D

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13
Use Lap/Shoulder Belt Only
Position Lap Belt
Lap belt must go in front of
armrest and lie low across your
child’s hips and thighs.
Position Shoulder Belt
Shoulder belt lies across shoulder
between neck and edge of
shoulder.
For Booster, You Need to Adjust:

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Use the tether strap when
using forward-facing (A)
When used properly, the tether
helps reduce injury in a sudden
stop or crash.
Review section 3
Car Seat Does Not Move More
than 1” (2.5 cm) at the Belt
Path (B)
Review section 3
Harness Straps at or Just
Above Child’s Shoulders (C)
Review section 4
Chest Clip Even With Armpits(D)
Review section 4
Cannot Pinch Harness Straps
at the Shoulder (E)
Review section 4
Forward-Facing Installation
B
A
D E
C

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Booster Installation
Never Use Lap Belt Only
Review section 5
Lap Belt in Front of Armrest and
Lies Low Across Hips and Thighs
Review section 5
Shoulder Belt Lies On the
Shoulder, Between the Neck and
Edge of Shoulders
Review section 5

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1-B Welcome to the Graco Family!
Your child’s safety depends on you. No car seat can guarantee protection
from injury in every situation, but proper use helps reduce the risk of
serious injury or death.
Even if this car seat seems easy to figure out on your own, you must
follow the detailed instructions in this instruction manual to ensure the
steps below are performed correctly.

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22 lb
(10 kg)
40 lb
(18.1 kg)
65 lb
(30 kg)
100 lb
(45 kg)
Forward-Facing with 5-Point Harness
Must be 27-49” (69-125 cm) tall:
22-40 lb (10-18 kg) and can sit upright unassisted
MUST use 5-point harness. 40-65 lb (18-30 kg)
SHOULD use 5-point harness*.
Backless Booster Mode with Vehicle Lap/Shoulder Seat Belt
Must be 43-57” (110.1-145 cm) tall and 4+ years old:
40-65 lb (18.1-30 kg) CAN be in booster mode.
Over 100 lb (45 kg) MUST be in backless booster mode.*
Highback Booster Mode with Vehicle Lap/Shoulder Seat Belt
Must be 43-57” (110.1-145 cm) tall and 4+ years old:
40-65 lb (18.1-30 kg) CAN be in booster mode.
Over 65 lb (30 kg) MUST be in booster mode.*
1-C Right Mode of Use
120 lb
(54 kg)
*Check your state laws and the AAP/NHTSA recommendations. Review page 22 more
for information.

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1-D Before You Begin
Please fill out the prepaid registration postcard attached to the harness
and mail it in today or register online at www.gracobaby.com/
carseatregistration.
Child restraints could be recalled for safety reasons. You must register
this restraint to be reached in a recall. Send your name, address, and the
restraint’s model number and manufacturing date to:
Graco Children’s Products, Inc.
Attn: Customer Service
P.O. Box 169, Elverson, PA 19520-9901
or call 1-800-345-4109
or register online at www.gracobaby.com/carseatregistration
For recall information, call the U.S. Government’s Vehicle Safety Hotline at
1-888-327-4236 (TTY: 1–800–424–9153), or go to http://www.NHTSA.gov
Register This Child Restraint

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Model Name_________________________
Model Number _______________________
Date of Manufacture __________________
Date of Purchase _____________________
For future reference or if you change addresses, record the model name,
model number, date of manufacture and purchase date of this car seat on the
below. You can find this information either on the registration card if you still
have it or on the date label located on the bottom of the car seat.
In the U.S.A, please contact our Customer Service Department with any
questions you may have concerning parts, use, or maintenance. When
you contact us, please have your product’s model number and date of
manufacture ready so that we may help you efficiently. These numbers can
be found on a sticker on the bottom of your car seat.
For additional resources or to get your car seat checked by a child passenger
safety technician, please visit the following web sites:
www.nhtsa.gov • www.seatcheck.org • www.safekids.org
If You Need Help
Please fill out the prepaid registration postcard attached to the harness
and mail it in today or register online at www.gracobaby.com/
carseatregistration.
Child restraints could be recalled for safety reasons. You must register
this restraint to be reached in a recall. Send your name, address, and the
restraint’s model number and manufacturing date to:
Graco Children’s Products, Inc.
Attn: Customer Service
P.O. Box 169, Elverson, PA 19520-9901
or call 1-800-345-4109
or register online at www.gracobaby.com/carseatregistration
For recall information, call the U.S. Government’s Vehicle Safety Hotline at
1-888-327-4236 (TTY: 1–800–424–9153), or go to http://www.NHTSA.gov

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STOP using this car seat and throw it away 10 years after the date of manufacture. Look
for date of manufacture label on bottom of the car seat.
Graco Children’s Products Inc. advises against loaning or passing along a car seat
unless you know the complete history of the product. We also advise against purchasing
a car seat second hand.
This child restraint meets or exceeds all applicable requirements of Federal motor vehicle
safety standard 213 for use in motor vehicles.
This car seat is certified for use in aircraft when using the harness system and
without using the lock-off. Use only on forward-facing aircraft seats. Follow the
instructions for vehicle installation and section 7-E for routing the aircraft lap
belt over the lock-off. See section 3-C for installation but do not use the tether.
See section 7-D “ Vehicle Seat Belts” and section 7-E “Aircraft Installation”.
This car seat is NOT certified for use in aircraft when using the lockoff OR
when used as a booster seat because aircrafts do not have shoulder belts.
Contact the airline for their specific polices.
Protect vehicle seat. Use a car seat mat, towel, or thin blanket under and behind car seat.
Certification
Car Seat’s Useful Life
Vehicle Seat Protection