Buick 2013 Regal Owner's Manual page 276

To determine what kind of fluid to
use, see
use the proper fluid.
The vehicle has electric power
steering and does not use power
steering fluid.
When windshield washer fluid is
needed, be sure to read the
manufacturer's instructions before
use. If operating the vehicle in an
area where the temperature may fall
below freezing, use a fluid that has
sufficient protection against
freezing.
. Always
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See
for reservoir location.
This vehicle has disc brakes. Disc
brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be
heard all the time the vehicle is
moving, except when applying the
brake pedal firmly.