Cosco APT 40 User manual

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5 5
Rear Facing: 5-40 lb and 19-40 in.
(2.3-18 kg and 48-101.6 cm)
Forward Facing: 22-40 lb and 29-43 in.
And at least 1 year old
(10.1-18 kg and 73.6-110 cm)
APT 40
CONVERTIBLE CAR SEAT
Failure to follow the warnings on the labels and in the
instruction manual can result in serious injury or death
to your child.
LOWER
ANCHOR
Page 25
TETHER
Page 40
KEEP INSTRUCTIONS FOR FUTURE USE.
Read all instructions before using this child restraint.
©2016 Dorel Juvenile.
www.coscokids.com
4358-7095
FUNSMARTSIMPLE

Choosing Rear or Forward Facing
Your child’s height, weight,and age determine how your child
restraint should be placed in the vehicle.
Children up to 1 year of age must ride rear facing.
The American Academy of Pediatrics recommends that
children should remain rear facing until they are at least
2 years old.
Please talk to your doctor about which is the best option for your
child.
In this child restraint, your child can remain rear facing up to 40 lb
(18 kg) and up to 40 in. (101.6 cm).
WARNING: Verify your child’s weight and height
(do not guess) before choosing the child restraint’s
placement.
Lower Anchor Belt Install
Page 41
Lower Anchor Belt Install
Page 32
Vehicle Belt Install Page 45
Vehicle Belt Install Page 36
+
+
FORWARD FACING
22-40 lb (10.1-18 kg)
29-43 in. (73.6-110 cm)
At least 1 year old
REAR FACING
5-40 lb (2.3-18 kg)
19-40 in. (48-101.6 cm)
See page 3 to
adjust internal
harness system
See page 3 to
adjust internal
harness system

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Table of Contents
Getting Started......................................1
Parts of the Child Restraint.................................1
Prepare Child Restraint to Fit Your Child..............3
How Does Your Child Fit?...................................4
Changing Position of Buckle...............................5
Changing Position of Shoulder Harness Straps.......7
Harness System Adjustment for Smaller Infants...9
Securing Child in Child Restraint.........................13
General Use............................................15
Removing Harness System.................................15
Removing Seat Pad for Cleaning.........................18
Installing Harness System..................................19
Accessories on Select Models............................22
Safety Information .................................23
Child Restraint Use............................................23
Installation in Vehicle.........................................23
Vehicle Seating Position.....................................24
Vehicle Information................................ 25
Choosing Lower Anchor orVehicle Belts..............25
Knowing Your Vehicle Belts.................................27
Aircraft Information............................................30
Rear Facing ............................................31
Lower Anchor Installation.............................32
Vehicle Belt Installation................................36
Forward Facing......................................39
Tether Use..................................................40
Lower Anchor Installation.............................41
Vehicle Belt Installation................................45
General Information............................... 47
Using a Locking Clip..........................................47
Dorel Juvenile Group Information........................49
Registration and Safety Notices..........................50
Warranty...........................................................51
Replacement Parts Order Form...........................52
Troubleshooting.................................................54

2
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Parts of the Child Restraint
1
A. Shoulder Harness
Slots
B. Harness Straps
C. Chest Clip
D. Buckle
E. Hip Harness Slots
F. Harness Release
Lever (under flap)
G. Harness
Adjustment Strap
H. Cup Holder
I. LowerAnchor Belt
(see page 25)
J. Instruction Manual
Storage (under pad)
SideView
FrontView
BackView
K
L
P
R
N
M
O
Q
B
C
D
E
F
G
A
H
I
J
K. LowerAnchor
Storage
(under side of shell)
L. Rear-Facing Belt
Path
M. Rear-Facing Level
Lines
N. Forward-Facing
Belt Path
O. Shell
(child restraint)
P. Tether (see page 40)
Q. Tether Storage
R. Splitter Plate

43
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Prepare Child Restraint to Fit Your Child How Does Your Child Fit?
1. Loosen Harness
Push down on harness release lever
(under flap on front of seat pad) while
pulling out on harness straps as
shown.
3. Release Chest Clip
Press on chest clip release button and
pull apart.
Place harness straps out of the way.
2. Unbuckle Harness
Press in towards the top of the red
button.
Pull buckle tongues out.
4. Place Child in Child
Restraint to Determine
Proper Harness Fit
The child’s bottom and back should be
flat against the child restraint.
See page 4 for fit guidelines. To make changes to the buckle, see pages 5-6.
To make changes to the harness straps, see pages 7-8.
To make adjustments for smaller infants,see pages 9-12.
Use the guidelines below to determine if the buckle and harness
straps are in the right place for your child.
REAR FACING
Buckle Position
Start in the 1st slot and adjust outward as your
child grows.Buckle should be used in slot closest
to your child.The buckle should not be underneath
or behind your child.1st or 2nd slot MUST be used.
Harness Strap Position
Always choose the shoulder harness slots that are
closest to your child’s shoulder height. Harness
strap MUST be at or slightly below shoulders.
If the lowest shoulder harness slots are above the
child’s shoulders in the lowest position,do not use
this child restraint.
FORWARD FACING
Buckle Position
Start in the 1st slot and adjust outward as your child
grows.Buckle should be used in slot closest to your
child.The buckle should not be underneath or behind
your child.Any slot can be used.
Harness Strap Position
Always choose the shoulder harness slots that are
closest to your child’s shoulder height. Harness
strap MUST be at or slightly above shoulders.
If the highest shoulder harness slots are below the
child’s shoulders,do not use this child restraint.
1
2
3
1
2

6
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Changing Position of Buckle
5
1. Turn Seat Over
Locate buckle’s metal retainer on
bottom of shell.
2. Rotate Metal Retainer
and Push It Up Through
Shell and Pad
3. From Top of Seat, Pull
Buckle Out of Shell
4. Insert Buckle’s Metal
Retainer into Slot
Closest to Child
Buckle MUST face out.
You MUST use the 1st or 2nd buckle
slots when child restraint is used
rear facing.
Any slot can be used when forward
facing.
5. Pull Metal Retainer
Completely
Through Pad
and Shell
6. Check Buckle
Pull up on buckle to make
sure it is secured.
The buckle MUST not pull
out.
WARNING:Failure to place buckle’s metal retainer
completely through pad and shell can result in serious
injury or death.

8
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Changing Position of Shoulder Harness
Straps
7
1. Fully Loosen Harness
Straps
2. From Back, Remove
Harness Strap Loops
From Splitter Plate
3. Pull Harness Straps Out
of Shoulder Harness
Slots
4. Rethread Harness Straps
into Correct Shoulder
Harness Slots For Your
Child
If you will be using the lowest shoul-
der harness slots,you MUST adjust
the harness straps.
See pages 10-12.
WARNINGS: Make sure that the harness height is
correct for your child’s size.
Do not use this child restraint rear facing
unless the top of your child’s head is at least
1 in. (2.5 cm) below the top of the child
restraint.
Do not use this child restraint forward facing if
the tops of your child’s ears are above the top of
the child restraint.
Failure to follow these steps can result in serious
injury or death.
5. Attach Harness Strap
Loops to Splitter
Plate As Shown
Sewn ends of the harness strap
loops MUST face towards you.
DO NOT twist harness straps or
harness adjustment strap.
Make sure the harness strap loops
are fitted COMPLETELY ON both
sides of the splitter plate.

10
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Harness System Adjustment for
Smaller Infants
9
4. Replace Pad and
Check Buckle
Pull up on buckle to make sure it
is secured.
The buckle MUST not pull out.
1. With Buckle in the
1st Slot As Shown,
Turn the Seat Over
If you need to move the buckle to
the 1st slot,see page 5.
5. Turn Seat Over
Locate harness straps’ metal
retainers on bottom of shell.
6. Using a Flathead
Screwdriver, Lift
Metal Retainer Off
of Tab
Repeat for other side.
7. Pull Metal Retainer
Towards You and
Out of Its Original
Location
Repeat for other side.
2. From Bottom of
Seat, Pull Metal
Retainer Towards You
and Push It Up into
Middle Slot As Shown
3. From Top of Seat, Lift
Pad Up and Lay the
Metal Retainer Flat
Against the Shell As
Shown
If you will be using the
lowest shoulder harness
slots,you MUST adjust the
harness straps.
continued on next page

12
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11
9. Fully Loosen Harness
Straps
10. From Back, Remove
Harness Strap Loops
From Splitter Plate
11. Pull Harness Straps
Out of Shoulder
Harness Slots
12. Rethread Harness
Straps into Lowest
Shoulder Harness
Slots
13. Attach Harness Strap
Loops to Splitter Plate
As Shown
Sewn ends of the harness strap
loops MUST face towards you.
DO NOT twist harness straps or
harness adjustment strap.
Make sure the harness strap loops
are fitted COMPLETELY ON both
sides of the splitter plate.
8. Push Metal Retainer
Up into Slot on Bottom
of Shell As Shown
Repeat for other side.
From the front,pull on harness
straps to make sure the retainers
do not pull out.
WARNINGS:Harness system must be installed
correctly.
Failure to follow these steps can result in serious injury or
death.

14
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Securing Child in Child Restraint
13
1. Place Child in Child
Restraint
The child’s bottom and back should be
flat against the child restraint.
Position harness straps over child’s
shoulders and upper thighs.
3. Close Chest Clip
Insert right half of chest clip into left
half and snap together.
2. Buckle Harness
Push buckle tongues into buckle until
you hear a“click.”
Pull up on harness straps to make sure
buckle is locked.
4. Tighten Harness
Pull on harness adjustment strap to
tighten harness snugly.
6. Check Harness Tightness
Try to pinch the harness at the shoul-
ders vertically between index finger
and thumb as shown.
If your fingers slip off, the harness is
tight enough.
If you can pinch the harness strap,tighten more.The harness straps
should be snug throughout their length.
A snug strap should not allow any slack.It lies in a relatively straight
line without sagging.It does not press on the child’s flesh or push the
child’s body into an unnatural position.
5. Position Chest Clip
The chest clip must be placed at mid-
chest (even with armpits) and away from
the child’s neck.
WARNINGS: Failure to fasten and tighten the harness
system correctly may allow the child to be ejected from the
child restraint in a crash or sudden stop causing serious
injury or death. Do not mistake comfort for safety.
Harness system must be snugly
adjusted.
DO NOT put snowsuits or bulky
garments on your child when
placing them in the child restraint.
Bulky clothing can prevent the
harness straps from being tightened
properly.
To Remove Child From Child Restraint:
1. Loosen Harness Strap
2. Unbuckle Harness
3. Release Chest Clip
4. Remove Child