Brakes - Buick Lucerne 2007 Owner's Manual

Brakes

Brake Fluid
There are only two reasons why the brake fluid
level in the reservoir might go down. The first
is that the brake fluid goes down to an acceptable
level during normal brake lining wear. When
new linings are put in, the fluid level goes back
up. The other reason is that fluid is leaking out
of the brake system. If it is, you should have
the brake system fixed, since a leak means that
sooner or later the brakes will not work well.
366
The brake master
cylinder reservoir is
filled with DOT-3 brake
fluid. See Engine
Compartment Overview
on page 334 for the
location of the reservoir.
So, it is not a good idea to top off the brake fluid.
Adding brake fluid will not correct a leak. If you add
fluid when the linings are worn, then you will have
too much fluid when you get new brake linings.
You should add or remove brake fluid, as
necessary, only when work is done on the
brake hydraulic system.
CAUTION:
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If your vehicle has too much brake fluid, it
can spill on the engine. The fluid will burn
if the engine is hot enough. You or others
could be burned, and your vehicle could
be damaged. Add brake fluid only when
work is done on the brake hydraulic
system.
When the brake fluid falls to a low level, the brake
warning light comes on. See Brake System
Warning Light on page 203.