Important Harness Adjustments - Britax Marathon Classic User Manual

Safety Information

Important Harness Adjustments

American Academy of Pediatrics recommends: All infants and
toddlers should ride in a Rear Facing Car Seat until they are 2 years
of age or until they reach the highest weight or height allowed by
their car safety seat's manufacturer.
Britax strongly recommends that children ride rear-facing to the
highest weight or height specified.
Rear-Facing
Use rear-facing only with children:
• who weigh between 5 and 35 lbs (2.3 – 15.9 kg) and
• the top of the child's head is at least 1" (2.5 cm) or
more below the top of the child seat (Fig. A) and
• the harness straps are in the nearest slots at or
below the child's shoulders.
If the child cannot be secured within these requirements because the
child exceeds height or weight requirements, review the forward-facing
guidelines on page 7.
If the child cannot be secured within these requirements because the
child is too small, selection of a different child seat (such as an infant
carrier) may be required.
IMPORTANT:
See Adjusting Harness Slot Height on page 35.
WARNING!
Do NOT use the child seat rear-facing if any of the following apply:
• the child is less than 5 lbs (2.3 kg) in weight or
• the child exceeds 35 lbs (15.9 kg) in weight or
• the top of the head is less than 1" (2.5 cm) from the top of the child
seat (Fig. A) or
• the harness straps are in a slot above the child's shoulders.
6
Forward-Facing
Use forward-facing only with children:
IMPORTANT:
become necessary to adjust the harness to the next higher set of slots
than would be used when the seat is upright. See Adjusting Harness
Slot Height on page 35.
A
Rear-Facing
• who weigh between 20 and 65 lbs (9.1 – 29.5 kg) and
• 49" (124.5 cm) or less in height and
• the top of the child's ears are below the top of the child seat and
• the harness straps are in the nearest slots at or above the child's
shoulders, parallel to level ground (Fig. B).
When using forward-facing recline mode, it may
Upright
Above Shoulder Level
Below Shoulder Level
Shoulder level
b
Forward-Facing Harness Height
WARNING!
Do NOT use the child seat forward-facing if any of the following apply:
• the child is less than 20 lbs (9.1 kg) in weight or
• the child exceeds 65 lbs (29.5 kg) in weight or
• the child exceeds 49" (124.5 cm) in height or
• the top of the ears are above the top of the child seat or
• the top harness slots fall below the child's shoulders, parallel to level
ground (Fig. B)
Safety Information
Reclined
7