Oldsmobile cutlass supreme 1996 Owner's Manual page 164

Driving too fast through large water puddles or even
going through some car washes can cause problems, too.
The water may affect your brakes. Try to avoid puddles.
But if you can't, try to slow down before you hit them.
Wet brakes can cause accidents. They won't work
well in a quick stop and may cause pulling to one
side. You could lose control of the vehicle.
After driving through a large puddle of water
or
a car wash, apply your brake pedal lightly until
your brakes work normally.
4-16