Brake Fluid - Cadillac 2003 CTS Owner's Manual

Brakes

Brake Fluid

Your brake master cylinder reservoir is on the driver's side
of the engine compartment. It is filled with DOT
fluid. See "Engine Compartment Overview" in the Index.
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 your brake
system fixed, since a leak means that sooner or later your
brakes won't work well, or won't work at all.
So, it isn't a good idea to "top off" your brake fluid.
Adding brake fluid won't correct a leak. If you add fluid
when your linings are worn, then you'll 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:
If you have 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.
-
3 brake
If the ignition is in ON and the brake fluid is low, the
Check Brake Fluid message will be displayed in the
DIC. See "Check Message, Brake Fluid" in the Index
for more information.
When your brake fluid falls to a low level, your brake
warning light will come on. See "Brake System Warning
Light" in the Index.
6-31