Honda 1990 Civic Sedan Owner's Manual page 23

Main Menu
Seat Belts (cont'd)
Avoid placing the lap belt across your abdomen. In the event of
a collision, the pressure of the belt on the abdomen may
increase the extent of injury.
Do not wear the shoulder portion of the belt under your arm or
out of position. Such use could increase the chance and amount
of injury in an accident.
Never use one belt for more than one person, child or adult.
Comfort clips sold on the open market are not recommended
since they could impair the function and safety of the belts.
Emergency Belt Release
The front belts should remain permanently latched. However, an
emergency release button is provided as shown.
EMERGENCY
RELEASE BUTTON
Keep below hip bone
Too high
TONGUE PLATE
BUCKLE