Brake Fluid

The brake master cylinder reservoir is filled with GM approved DOT 3 (for

gasoline only vehicles) or DOT 4 (for PLUG-IN vehicles) brake fluid as

Checking Brake Fluid

With the vehicle in P (Park) on a level surface, the brake fluid level should be between the minimum and maximum marks on the brake fluid reservoir.

There are only two reasons why the

brake fluid level in the reservoir may go down:

. Normal brake lining wear. When

new linings are installed, the fluid level goes back up.

. A fluid leak in the brake hydraulic system. Have the brake hydraulic

system fixed. With a leak, the brakes will not work well.

Always clean the brake fluid reservoir cap and the area around the cap

before removing it.

Do not top off the brake fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn,

there will be too much fluid when

new brake linings are installed. Add or remove fluid, as necessary, only when work is done on the brake hydraulic

system.

{ Warning

If too much brake fluid is added, it can spill on the engine and burn,

if the engine is hot enough. You or others could be burned, and the

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

Brake fluid absorbs water over time which degrades the effectiveness of

the brake fluid. Replace brake fluid at the specified intervals to prevent

increased stopping distance. See

Maintenance Schedule 0 399.

What to Add

Use only GM approved DOT 3 (for

gasoline only vehicles) or DOT 4 (for PLUG-IN vehicles) brake fluid from a clean, sealed container. See

0 408.

{ Warning

The wrong or contaminated brake

fluid could result in damage to the brake system. This could result in

the loss of braking leading to a possible injury. Always use the

proper GM approved brake fluid.