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They make it so the car does not lock up the brakes and slide. Antilock braking system.
The brakes my lock up without touching them if a foreign object has become lodged between the pad and the rotors. A failure in the hydraulics may also cause the brakes to engage on their own.
Slam on your brakes. If your brakes lock up, then you do not have ABS. If your brakes do not lock up and you hear a knocking type of noise from your brakes, then you have ABS.
Most likely you do not have anti-lock brakes in your vehicle. Other possible answer is that your anti-lock brakes are malfunctioning. If you have anti-lock brakes you should see a mechanic as soon as possible.
The Anti-Lock brakes pulsate so the brakes do not lock up (anti) and cause the vehicle to side out.
To maintain directional control during a hard or panic stop. Think about it. If your brakes lock, you go into a skid and lose control of the car. Anti-lock brakes prevent the brakes from locking up, and throwing the vehicle into an uncontrollable skid. This system allows maximum deceleration without having the brakes lock, which, in turn, allows the driver the ability to maintain control of the vehicle while coming to the most rapid stop possible.
There are a couple of things that can cause your Pontiac antilock brakes to lock up. The most common cause is a malfunctioning ABS sensor.
The dealer will know how to access the codes for the brakes. When that is fixed it should not lock up then.
It is possible for the brakes to lock up on a 2000 Chevy Venture when in reverse because the brakes are not working properly. Perhaps the brake pads need to be changed.
In Winter, I would try to turn the other way and brake. In Summer, Definitely brakes. <><><> Avoid the "lock up the brakes" panic style braking- if the wheels cannot revolve, you have no ability to steer. Take foot off accelerator, turn into the direction of the skid (if back of car went to the right, turn to the right) and brake. We used to say "pump" the brakes, but anti-lock brakes now do that for you- keep a steady pressure on the pedal.
ABS was an option on Villagers. If you have an ABS light that lights up when you turn the key on the dash, you have it. If not, you don't.
When your brakes get harder and harder the more you use them and lock up, this is a symptom of brake failure. You need to take your vehicle to a qualified mechanic.