Graco NAUTILUS SNUGLOCK LX User manual

Do not install or use
this child restraint until
you read, understand and
follow the instructions
in this manual and the
warnings on the car seat.
FAILURE TO PROPERLY
USE THIS CHILD
RESTRAINT INCREASES
THE RISK OF SERIOUS
INJURY OR DEATH IN A
SUDDEN STOP OR CRASH.
NAUTILUS®SNUGLOCK®LX
CHILD RESTRAINT/BOOSTER SEAT
www.gracobaby.ca
NWL0000797334A 5/18

2
1-A Quick Guide to Your Manual
1-B Welcome to the Graco Family
1-C Height and Weight Guidelines
1-D Before You Begin
Register This Car Seat
If You Need Help
Certification
Aircraft Installation
Car Seat’s Useful Life
Vehicle Seat Protection
Warm Weather Use
1-E Safety Warnings
1 Important Pages 6-25
2 Features Pages 26-31

3
3-A Forward-Facing Harness Mode With Top Tether Use
3-B Install Forward-Facing Harness Mode with UAS Straps and Top
Tether
3-C Install Forward-Facing Harness Mode with the Vehicle
Seat Belt and Top Tether
3 Forward-Facing Harness Mode Pages 32-55
4-A Booster Use
4-B Install Highback Booster
4-C Install Backless Booster
4 Booster Pages 56-72

4
6 Accessories Page 89
5-A Securing Child Forward-Facing Harness Mode
5-B Securing Child Highback Booster
5-C Securing Child Backless Booster
5 Securing Child Pages 73-88

5
7-A How to Remove UAS and Top Tether
7-B Choosing Vehicle Seat Location
7-C Unsafe Vehicle Seat Location
7-D Vehicle Seat Belts
8-A Cleaning Seat Pad
8-B Cleaning Buckle Strap
8-C Cleaning Harness and UAS Straps
8-D Cleaning Removable Armrests
7 Vehicle Information Pages 90-100
8 Care & Cleaning Pages 101-108

6
1-A Quick Guide to Your Manual
Car Seat Assembly (On Select Models)
(Follow the directions that matches your model)
Attach Headrest
Squeeze height adjust button and push headrest into
slots on the back support as shown. Headrest will
click into the back support.
You may need to unfasten the hook and loop
attachment tape on both sides at the top of the
back support to allow for easier access to the slots.
Always use child restraint with headrest installed
and properly adjusted.
Click!
Adult Assembly Required
This car
seat
is for
children:
Forward-Facing Harness Mode: 10-30 kg (22-65 lb),
69-125 cm (27”-49”)
Highback Booster: 18-45 kg (40-100 lb), 110-145 cm (43”-57”)
Backless Booster: 18-45 kg (40-100 lb), 110-145 cm (43”-57”)
Backless Armless Booster: 18-54 kg (40-120 lb),
110-145 cm (43”-57”)
This seat CANNOT be used rear-facing.

7
Adult Assembly Required
1. Raise Seat Back
Grab seat pad fabric in sitting area to
expose the gutters.
Make Sure all hands, fingers and other
objects are clear of the gutters.
Make Sure the harness straps are securely
attached within the “T”-shaped slots around
the arms as shown.
With your other hand, raise seat back so
that both arms LOCK into the gutters. Arms
should click into the gutters. Seat assembly
should appear as shown.
Harness
Strap
T-Slot
Arm
Attach Headrest
Squeeze height adjust button and push headrest into
slots on the back support as shown. Headrest will
click into the back support.
You may need to unfasten the hook and loop
attachment tape on both sides at the top of the
back support to allow for easier access to the slots.
Always use child restraint with headrest installed
and properly adjusted.
Click!
Car Seat Assembly (On Select Models)
(Follow the directions that matches your model)

8
2. Snap On Seat Base Pad to Base
Snap on the base pad as shown. On select
models, you may need to attach the 2
elastic loops on the back and side of the
seat base.
3. Assembly Complete
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 centre 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 of this manual AND your vehicle owner’s manual.

9
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 centre 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 of this manual AND your vehicle owner’s manual.

10
Which Installation Method Should I Use?
This car seat can be installed in your vehicle using either the vehicle seat
belt OR the Universal Anchorage System (UAS). Although both are equally
safe to use, DO NOT USE BOTH AT THE SAME TIME IN FORWARD-FACING
HARNESS MODE. Graco allows the securing of the car seat with UAS
system in the booster mode, only if the vehicle manufacturer allows it. Do
not use the UAS when your child has reached 20 kg (45 lb) when using this
car seat with the forward-facing harness mode.
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.
UAS: The UAS system 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 UAS system,
although some manufacturers began including UAS earlier. Some vehicle
owner manuals use the terms ISOFIX or LATCH to identify the UAS system.
According to collision statistics, the safest
place for your child in any vehicle is the
back seat. The centre of the back seat can
be the safest during a possible side impact.

11
UAS consists of lower anchors and top tether anchors, which are built-in
to your vehicle, and connecting hooks that are built-in to your car seat.
Lower anchors are used INSTEAD of the vehicle’s seat belt to secure
the child seat to the vehicle in forward-facing harness mode. Top tethers
are used IN ADDITION to the lower anchors OR the vehicle’s seat belt to
secure a forward-facing car seat to the vehicle.
Review your vehicle’s owner manual for exact location and use.
What is UAS?
Vehicle Top Tether
Anchor Points
Vehicle Lower
Anchor Points
Typical seat in a passenger
vehicle. Other vehicle types
may have different UAS
locations.
Vehicle Seat Bight

12
When Installing Forward-Facing Harness Mode
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 of this manual AND
your vehicle owner’s manual.
UAS System
UAS consists of lower anchors, which are
built-in to your vehicle, and connecting
hooks that are built-in to your car seat.
Review section 3-B of this manual AND
your vehicle owner’s manual.

13
Vehicle Seat Belt
Only use the Lap/Shoulder seat
belt configuration.
Review section 4-B, 4-C of this
manual AND your vehicle owner’s
manual.
When Installing As a Booster

14
Does Your Car Seat Fit Your Child Correctly?
To make sure your child is secured properly, review section 3 and 4 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
Mode (A)
Harness straps at or just above the child’s
shoulders and top of child’s ears below top of
headrest (B). Review section 5.
Buckle Position (C)
The correct slot is the one that is closest to
your child without being underneath them.
Review section 5.
Harness Tightness (D)
If your fingers slide off the harness straps
without pinching the straps, it is tight enough.
Review section 5.
For Forward-Facing Harness Mode, You Need to Adjust:
A
C
B
D

15
Use Lap/Shoulder Belt Only
Position Lap
Belt
Lap belt must go
behind 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:

16
Use the top tether strap when
using forward-facing harness-
mode(A)
When used properly, the top tether
helps reduce injury in a sudden
stop or crash.
Review section 3
Car Seat Does Not Move More
than 2.5cm (1”) at the Belt
Path (B)
Review section 3
Harness Straps at or Just
Above Child’s Shoulders (C)
Review section 5
Chest Clip Even With Armpits(D)
Review section 5
Cannot Pinch Harness Straps
at the Shoulder (E)
Review section 5
Forward-Facing Harness Mode Installation
B
A
D E
C

17
Never Use Lap
Belt Only
Review section 5
Lap Belt Behind
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
Booster Installation

18
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.

19
10 kg
(22 lb)
18 kg
(40 lb)
30 kg
(65 lb)
45 kg
(100 lb)
Forward-Facing Harness Mode 10-18 kg (22-40
lb) and can walk unassisted MUST use 5-point
harness. 18-30 kg (40-65 lb) SHOULD use
5-point harness.
Highback Booster Mode with Vehicle Lap/Shoulder
Seat Belt 18-30 kg (40-65 lb) 101 - 145 cm (40 - 57 in)
CAN be in highback booster mode. Over 30 kg (65 lb)
MUST be in booster mode.
Backless Booster Mode with Vehicle Lap/Shoulder
Seat Belt 18-30 kg (40-65 lb) 101 - 145 cm (40 - 57 in)
CAN be in booster mode. Over 30 kg (65 lb) MUST be in
booster mode.
1-C Right Mode of Use
Backless Armless Booster Mode with Vehicle Lap/Shoulder
Seat Belt 18-30 kg (40-65 lb) 101 - 145 cm (40 - 57 in) CAN be in
booster mode. Over 30 kg (65 lb) MUST be in booster mode.
54 kg
(120 lb)

20
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.ca
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:
Newell Industries Canada Inc.
PO Box 20090 Oaktown Plaza, Oakville, ON L6K 3Y7
or call 1-800-345-4109.
For recall information, call the Customer Service in Canada at www.gracobaby.ca or
call 1-800-345-4109.
Register This Child Restraint