Even in the spring, daytime melt water can freeze at night on curves, bridges and intersections creating hazardous driving conditions. In an area out of traffic, at a slow rate of speed, apply your brakes firmly to test the traction. In a front-wheel drive car it can cause you to loose control of your steering.
Black ice occurs from condensation when a warm day turns into a cold night.
If the initial applied pressure would cause a wheel to go below a certain percentage of the MPH the vehicle is traveling at, the ABS will adjust the brake pressure on the individual wheel to prevent it from locking up. Instead, apply even, slow pressure and then release. Around curves, during spin-outs or skids, these vehicles roll more easily than a car.