Honda Accord Sedan 1990 Online Reference Owner's Manual page 8

In addition, the passenger doors will lock automatically when In addition, the passenger doors will lock automatically when
the plunger on the driver's door is pushed down, or when the the plunger on the driver's door is pushed down, or when the
driver's door is locked from the outside with the key. driver's door is locked from the outside with the key.
Lock Lock
Unlock Unlock
Lock Lock