See also:

Rear seats
Rear seats Seatbelts provide maximum restraint when the occupant sits well back and upright in the seat. Do not put cushions or any other materials between occupants and seatbacks or seat cushion ...

Rear seats
WARNING Seatbelts provide maximum restraint when the occupant sits well back and upright in the seat. Do not put cushions or any other materials between occupants and seatbacks or seat cushions ...

Shopping bag hook
CAUTION Do not hang items on the shopping bag hook that weigh 11 lbs (5 kg) or more. ...