Blown bulb.
bulb
H1
Change the globe or lamp. H4 type globes contain the high and low beam, so whilst low beam is working OK the high beam part is likely blown.
Why the hi beam and day light are not working but the low beam are working good on sunfire 99?
replace passenger side low beam headlight
where abouts are you and i will do it for you
If you haven't already, replace the headlight. Chris
Push the indicator stalk forward
Possibly the high beam element for the passenger side is broken. There are two elements inside those lightbulbs, one for low beam, the other for high beam.
Low beam of lamp burnt out, poor ground connection, corroded headlight lamp contacts.
it;s design that way
most likely problem is that the low beam side of bulb or sealed beam is burned out replace with a new one