See also:

FM
FM signals only reach about 16 to 65 km (10 to 40 mi). Although the radio has a built-in electronic circuit that automatically works to reduce interference, some static can occur, especially ...

Remote Keyless Entry (RKE) System
On some models, the RKE transmitter is used to lock and unlock the doors from up to 20m (65 ft) away from the vehicle. On other models, it can be used up to 60m (195 ft) away. Key Access ...

Braking
Braking action involves perception time and reaction time. Deciding to push the brake pedal is perception time. Actually doing it is reaction time. Average driver reaction time is about three-quar ...