Not seeing items you’ve added? Sign in
Support
Frequently Asked Questions
Harness-2-Boosters & Belt-Positioning Boosters FAQs
-
A harnessed seat has an internal 5-point harness system to restrain the child, whereas a booster seat “boosts” the child up so that the vehicle seat belt is positioned correctly across the child’s hips and shoulder/middle of the chest.
-
The minimum requirement is set to avoid promoting forward-facing too early. It’s recommended to transition from an infant car seat to a rear-facing convertible car seat before using a harness-2-booster.
-
Your child may be ready to transition to a belt-positioning booster seat when they have outgrown the forward-facing harness in their car seat by reaching the maximum height or weight limit, typically around 65 lbs. (29.5 kg) or 49 in (124.5 cm) tall. However, it’s essential to ensure your child also meets the minimum requirements for booster mode—consult your car seat user guide. Even if they outgrow the harness height before reaching 40 lbs. (18.1 kg), they must still weigh at least 40 lbs. (18.1 kg) to safely transition to a booster. Additionally, your child should be mature enough to sit still and upright throughout the entire car ride. The vehicle’s seat belt should also fit properly, meaning the lap belt lies low across the hips and the shoulder belt crosses the chest and rests on the shoulder. The child should also be able to sit with their back against the booster high-back or vehicle seat, knees bent comfortably at the edge of the seat, and feet flat on the floor (or close to the floor for shorter legs). Ensuring these criteria are met is crucial for your child's safety.
-
A child is ready to transition out of a belt-positioning booster seat when they can sit comfortably in the vehicle seat with the vehicle lap and shoulder seat belt fitting properly without the booster. This means the lap belt should lie snugly across the upper thighs, not the stomach, and the shoulder belt should cross the chest and rest on the shoulder without cutting into the neck. Additionally, your child should be tall enough to sit with their back against the vehicle seat, knees bent at the seat edge, and feet flat on the floor. This typically occurs when the child is around 4' 9" (144.78 cm) tall and between 8 to 12 years old, though the exact timing can vary based on the child's size and the vehicle's seat belt fit. It’s essential to ensure your child is mature enough to sit properly throughout the entire car ride without slouching or leaning.
-
The lower connectors secure the booster seat to the vehicle, preventing it from becoming a projectile when unoccupied and providing stability during a crash.
-
The ISOFLEX system secures the booster seat to the vehicle, preventing it from becoming a projectile when not in use and stabilizing it during a crash.
-
In booster mode, the vehicle seat belt restrains the child, and the LATCH system provides stability to the seat. The LATCH does not bear the crash forces, so it does not contradict the vehicle manufacturer’s maximum anchor weight limit.
-
No, the seat should not be reclined in booster mode as it was tested and certified for use only in the upright position.
-
Use with the backrest for children who weigh between 40 and 120 lbs. (18.1 and 54.4 kg) and whose height is between 44 and 63 in (111.8 and 160 cm).
-
Use without the backrest for children who weigh between 48 and 120 lbs. (21.8 and 54.4 kg) and whose height is between 46 and 63 in (116.8 and 160 cm).
-
Use the Skyline/Highpoint as a backless booster only in seating positions with a vehicle head restraint and when proper vehicle belt placement can be achieved.
-
Britax recommends that you secure the booster seat to the vehicle using the lower connectors or by fastening the vehicle seat belt across the unoccupied booster seat. This helps position the seat for use and reduces the chances of the booster becoming a projectile when not in use.
-
Britax strongly recommends that children be restrained in the rear seating positions, as it is statistically safer.
-
To help ensure the vehicle seat belt is properly positioned when using the Skyline/Highpoint, the lap belt should be worn underneath the armrest and rest low on the child’s upper thighs (pelvis area) to keep it securely in place. The shoulder belt should cross the midpoint of the child's chest, rest snugly on the shoulder while avoiding the neck, and sit under the armrest on the buckle side. This positioning will help ensure that both the lap and shoulder belts provide optimal protection in the event of a crash.
-
Secure the booster seat to the vehicle using the lower connectors or by fastening the vehicle seat belt across the unoccupied booster seat.
-
Discontinue use of the booster seat if it is older than ten (10) years from the date of manufacture or has been involved in a severe crash.
-
Verify that the child restraint and child restraint belts or straps do not interfere with the opening and closing of the vehicle door. Consult the vehicle user guide to help ensure proper installation.
-
Do not use anything to raise the booster seat off the vehicle seat, as this could cause the booster seat not to perform as intended in a crash.