Whoever installed them did something wrong ! - Old aircraft mechanic rule -if something goes wrong always check the last job .
If it is an older car without ABS the brakes would lock up and the car would slide/push/unable to steer, unless you got on/off the brakes. With ABS the computer would pulse the brakes and would prevent lock up so you would be able to steer.
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.
Never.
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.
Corroded brake wheel cylinder, or caliber, parking brake stuck.
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.
Improperly adjusted, new pads, low traction, etc.... most vans only had rear-wheel antilock brakes.
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.
remove them greese them up if that dont work replace seals or buy new ones