Honda Prelude 1990 Online Reference Owner's Manual page 4

Keys and Locks (cont'd)
Power Door Locks (Si with 4WS)
Both doors can be locked or unlocked simultaneously from the
inside using the master door lock switch.
In addition, the passenger door will lock automatically when the lock
tab on the driver's door is pushed forward or the driver's door is
locked with the key.
MASTER DOOR LOCK
SWITCH
Unlock
Trunk Lid
The trunk lid can be opened by pulling up the lever at the outside of
the driver's seat.
To open the trunk lid from outside, put the master key in the lock
and turn clockwise. The trunk lid opener lever is lockable with the
master key.
MASTER
KEY
Pull u p
TRUNK LID
OPENER LEVER
Keep the trunk lid closed while driving, to keep poisonous
carbon monoxide exhaust fumes out of the interior; prolonged
exposure can cause unconsciousness that may lead to death.
Weight limits shown on the label on the edge of the driver's
door must be observed. The total weight of passengers and
cargo must not exceed the total weight limit on the label.
Lock
Lock
MASTER KEY
Unlock
OPEN