Sensors are also being used to help drivers park cars more easily, through bumper-based sonar systems similar to the technology used to dock barges. As a vehicle approaches an object, a warning device beeps. The closer it gets, the faster the device beeps. Cadillac recently introduced its thermal imaging system on its redesigned DeVille. The system lets you see as much as up to five times farther on dark roads than low beams allow.
Drivers can spot objects through dense fog and oncoming headlight glare.
The system uses a sensor in the car's grille to detect infrared radiation. In conventional brake lines, fluid isn't compressed until your toe touches the pedal. With electronic brakes, the fluid is always compressed. An electronic signal merely releases it to callipers. As costs for the systems decline, other carmakers will adapt them as well.