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Q: Brake fluid on 2003 Chevrolet Astro

My brake light and ABS light are on. I check and add brake fluid. I noticed the rubber gasket on container (where you add the brake fluid has fluid on it. Can this be the problem? Should I just replace that rubber gasket? What is the name of that gasket?
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When you add fluid, does that put the warning lights out? if so, then the fluid must be leaking ut somewhere. If it's leaking out of the 'brake fluid reservoir cover gasket,' then you need the gasket but I don't think you can buy one without the rest of the reservoir. You may need to buy a reservoir at the Chevy dealer. But I don't think there would be enough fluid lost at the gasket, I'd think it's leaking elsewhere, like at the master cylinder or at one of the wheel calipers or cylinders. It's more likely. I'd bet on a leak at the master cylinder or rear wheel cylinders.
If it doesn't put the light out, then the problem is elsewhere, like in the ABS or conventional brake system. You'll need to get the ABS and brake systems checked out by a pro, being that it's a safety issue.
If you want to find a specialist, here's a directory link for you:
Mr. Superbob,

When I remove plastic covering from reservoir, I noticed the brake fluid reservoir cover gasket bottom right side is inside reservoir.
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