CAR SEAT ADVICE UK
  • Car Seat Advice
  • Everything you need to know
    • Choosing the right car seat
    • Seat Types and Weight and Height Limits
    • Rear Facing or Forward?
    • Installation Methods
    • The Harness
    • The Law
    • Car Seat Testing
    • Common Errors
    • FAQ
  • Installation methods
    • Infant car seats up to 13kg or 87cm
    • Rear facing car seats up to 18kg or 105cm
    • Forward facing seats from 9-18kg or 15 months to 105cm
    • Rear and forward facing seats from 9-25kg
    • Booster seats from 15-36kg
    • Seat Belt Buckles
    • ISOfix Points, Tether Straps and Support Legs
    • Indicators and side impact protection
  • Admin Team

Booster seats from 15-36kg

Picture
Car Seat Advice UK | Joie Duallo high back booster seat 15-36kg
This high back booster seat is attached to the car's ISOfix points...
Car Seat Advice UK | Joie Duallo high back booster seat 15-36kg
... and the child is restrained with  the adult seat belt.
Car Seat Advice UK | Joie Duallo high back booster seat 15-36kg
The seat belt must be threaded through the (usually red) hook at the bottom of the headrest. This hook needs to be about an inch above the shoulder.
Car Seat Advice UK | Graco high back booster Group 3 22-36kgPicture
In this non-ISOfix high back booster, the seat belt restrains the child and the seat at the same time.
Car Seat Advice UK | Joie Duallo high back booster seat 15-36kg ISOfixPicture
Some boosters are secured into the car by clicking them into the ISOfix points. This one has rigid arms...
Car Seat Advice UK | Diono Monterey2 high back booster seat 15-36kgPicture
... and this one has hooks on soft straps.
Car Seat Advice UK | Joie Duallo high back booster seat 15-36kg ISOfix strapsPicture
Once the hooks are attached, pull the straps at the front to secure the seat into the car.
Car Seat Advice UK | Britax Evolva High Back Booster Seat
Some booster seats are deliberately designed not to have belt horns, to prevent misuse...
Car Seat Advice UK | Graco Logico High Back Booster SeatPicture
... but most boosters do have horns and the seat belt must go underneath both of them, so that the lap belt sits low down on the hips.
Car Seat Advice UK | Graco booster cushion Group 3 22-36kg
High back boosters and booster cushions which don't have ISOfix must be strapped in with the seat belt when the child is not in the car. In the event of a crash, or even if you have to brake sharply, they can become dangerous projectiles that can injure the driver and other passengers.

The pictures on this website show installation methods for the most common types of car seats, and we have used many different ones. But car seats vary and these pictures should not be used as a replacement for the manufacturers' instructions. It is very important that you read the user manual carefully and only install your seat according to its own specific instructions.
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  • Car Seat Advice
  • Everything you need to know
    • Choosing the right car seat
    • Seat Types and Weight and Height Limits
    • Rear Facing or Forward?
    • Installation Methods
    • The Harness
    • The Law
    • Car Seat Testing
    • Common Errors
    • FAQ
  • Installation methods
    • Infant car seats up to 13kg or 87cm
    • Rear facing car seats up to 18kg or 105cm
    • Forward facing seats from 9-18kg or 15 months to 105cm
    • Rear and forward facing seats from 9-25kg
    • Booster seats from 15-36kg
    • Seat Belt Buckles
    • ISOfix Points, Tether Straps and Support Legs
    • Indicators and side impact protection
  • Admin Team