At the Master Cylinder mounted next to the firewall, driver's side.
at the master cylinder on the right side behind the battery
you put the brake fluid inside the master cylinder
On my girlfriends 2001 Escape it came on because the brake fluid was low. Open the hood and look at the fluid reservoir. If it is not filled to the full line, fill it with the proper brake fluid and see if the light goes out.
According to the Owner Guide , the clutch master cylinder and the brake master cylinder are part of the same system . The clutch and the brake system can be filled at the brake master cylinder with DOT 3 brake fluid
check the owners manual there is a section inside the manual saying how much of oil, transmission fluid, brake fluid ect..
To put brake fluid in a 1997 Ford Explorer, you must locate the brake fluid reservoir. Once you locate it, unscrew the cap, and replenish the brake fluid.
For a 1993 Ford Ranger : ( DOT 3 brake fluid )
The brake fluid reservoir
DOT 3 brake fluid
For a 1984 Ford F-150 : DOT 3 brake fluid
The brake fluid in a 1992 Ford Escort gets put in the brake fluid reservoir. This is normally located on the master cylinder.
DOT 3 brake fluid