Chevrolet Aveo 2007 Owner's Manual page 300

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 and/or clutch
hydraulic system.
When the brake fluid falls to a low level, the brake
warning light will come on. See Brake System
Warning Light on page 163.
300
What to Add
When you do need brake fluid, use only DOT-3
brake fluid. Use new brake fluid from a sealed
container only. See Part D: Recommended Fluids
and Lubricants on page 396.
Always clean the brake fluid reservoir cap and the
area around the cap before removing it. This
will help keep dirt from entering the reservoir.
CAUTION:
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With the wrong kind of fluid in the brake
system, the brakes may not work well.
This could cause a crash. Always use the
proper brake fluid.