Warning – Britax MARATHON CS User Manual

Page 3

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Use only in a rear-facing position when using it with an infant

weighing less than 20 lbs (9.1 kg) OR is less than 1 year of age.
Use only with children who weigh between 5 and 65 lbs (2.3 and

29.5 kg) and whose height is 49 inches (124.5 cm) or less. Rear-
facing for children who weigh between 5 and 35 lbs (2.3 and 15.9
kg) and forward-facing for children who weigh between 20 and 65
lbs (9.1 - 29.5 kg) and are at least 1 year of age.
Snugly adjust the belts provided with this child restraint around

your child. A snug strap should not allow any slack. It lies in a
relatively straight line without sagging. It does not press into the
child’s flesh or push the child’s body into an unnatural position.
Secure the top anchorage strap provided with this child restraint.

Secure this child restraint with the vehicle’s child restraint

anchorage system if available or with a vehicle belt.
Follow all instructions on this child restraint and in the written

instructions located under the child seat cover.
Register your child restraint with the manufacturer.

To prevent injury due to deterioration or hidden damage,

discontinue use of a child seat that is older than six years or has
been in a moderate or severe crash. See Serial Number and
Manufacture Date Label
located on child seat (see page 9).
This child seat must not be used in the home, in boats, or other

non-certified applications.
Based on crash statistics, the National Highway Traffic Safety

Administration (NHTSA) recommends that parents select the

back seat as the safest location for a properly installed child seat.
Please study the Vehicle Compatibility (pages 10-11) section in
this booklet to ensure your child’s safety and consult your vehicle
owner’s manual.
Secure this child seat even when it is not occupied. In a crash, an

unsecured child seat may injure vehicle occupants.
When using in a vehicle with air bags, refer to your vehicle owner’s

manual for child seat installation instructions and precautions.
Never use adjuster strap to lift or carry this child seat. Doing so

could cause damage to harness adjuster and webbing. Always
carry this child seat by its shell or tether straps.
The primary protection for occupants of a vehicle in a collision is

the body of the vehicle itself. A child seat will not protect a child
when a vehicle is seriously impacted. However, correctly installed,
a child seat will substantially improve chances for survival in most
crashes. Make sure all users fully understand the correct ways to
use this child seat in a vehicle.
The use of non-Britax Child Safety, Inc. covers, inserts, toys,

accessories, or tightening devices is not approved by Britax. Their
use could cause this child seat to fail Federal Safety Standards or
not perform as intended in a crash.
HUGS

TM

chest pads must be installed for forward-facing use.

Removal of HUGS is optional only for rear-facing use.

WARNING!

DEATH or SERIOUS INJURY CAN OCCUR:

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