Most cars can safely use Dot 3.
DOT 3
first check your brake fluid it may be low then check the switch at the emergency brake lever it may be stuck
I would suspect it needs lubrication.
You need to have the brake fluid changed immediately. Washer fluid will damage all of the seals in the brake system
it depends on what model you have, the obvious place would be in the brake fluid resevior mounteing the servo.
There is no substitute available that can be used for brake fluid. Using anything other than brake fluid could be dangerous and would likely cause damage.
No. That would be a huge mistake. Buy brake fluid. Its only $2 to $8 dollars at a store.
Low brake fluid level or a stuck brake fluid level sensor. Check the brake fluid level and if it is ok, tap on the master cylinder reservoir with your finger
No, it would ruin all the seals in the entire brake system.
If you look below your brake reservoir there is a sensor that detects if your brake fluid is low. If this sensor goes bad or sticks, it will make the brake light come on. Try unplugging this connector. Your light should go off. If you are not having to add fluid periodically to the system, I would replace the sensor. If you are having to add any fluid to the system, then you probably have a leak in a brake line or at one of your calipers. Also be sure the emergency brake is fully released.
NEED BRAKE INSPECTION POSSIBLY NEW BRAKE PADS, Check brake fluid imediately. had a similar problem on a 1990 camry. brake fluid level was slightly low. when temperature outside would drop, applying brakes would lower level and brake light would come on. possibly caused by a small leak in brake line. filling brake fluid would fix, but would reappear a couple of months later. Have brake lines checked for leak.
It all depends on what part is leaking what fluid. Brake cylinder would leak brake fluid. Axle seal would leak gear oil.