Buick 1993 Skylark Owner's Manual page 92

If your headlights are on, but on low beam:
The
system works normally. Just pull the lever until it clicks.
Your headlights will shift to high beam and stay there.
To return to low beam, just pull the lever toward you.
Windshield Wipers
You control the windshield wipers by moving the lever
marked "WIPER."
For a single wiping cycle, move the lever down to
"MIST." Hold it down until the wipers
start,
then let go.
The wipers will stop after one cycle. If you want more
cycles, hold the lever down to "MIST" longer.
For steady wiping at low speed, move the lever to the
"LOW' position. For high speed wiping, move the lever
further, up to "HIGH" To stop the wipers, move the
lever to "OFF."
Low Speed Delay Wipers (Option)
You can set the wiper speed for a long or short delay
between wipes. This can be very useful in light rain or
snow. Move the lever to DELAY then, turn the band to
choose the amount of delay.
I
A
CAUTION:
Damaged wiper blades may prevent you from
seeing well enough in a storm to drive safely. To
avoid damage, be sure to clear ice and snow
from the wiper blades before using them. If
they're frozen to the windshield, carefully loosen
or thaw them. If your blades do become
damaged, get new blades or blade inserts.