Volvo 2007 S80 Owner's Manual page 36

Use this booster cushion only with children who weigh between 33 and 80 lbs (15 and 36 kg) and whose height is
between 38 and 54 in (97 and 137 cm). In Canada, Transport Canada's weight recommendation is 40-80 lbs (18-
36 kg).
The booster cushion is designed to raise the child higher, so that the shoulder strap crosses over the child's collarbone,
not over the child's neck. If using a booster cushion does not result in proper positioning of the shoulder strap, then the
child should be placed in a properly secured child restraint (see the information beginning on
belt must never be placed behind the child's back or under the arm.
1
Canada only: This cushion may be referred to as a built-in booster cushion.
43
01 Safety
Integrated booster cushion
Using the integrated booster cushion
Fold down the booster cushion from the rear seat backrest.
Loosen the Velcro strip.
Fold up the backrest section of the booster cushion into the upright position.
Stowing the integrated booster cushion
page 32). The shoulder