Basic automatic headlights work through sensors that detect how much light is outside the vehicle. Most times, these sensors are located on the dash of the vehicle. The headlights turn on when the sensors detect a certain level of darkness.Continue Reading
Adaptive headlights are one type of automatic headlight. Adaptive headlights rotate when the vehicle is turning so that the road in front of the driver is always well lit. They use sensors to detect the speed of the vehicle, how far the driver has turned the steering wheel and the yaw, or the rotation of the vehicle around a vertical axis. Some adaptive headlights also sense when the brightness of the headlights needs to be adjusted. Generally, the sensors in adaptive headlights do not turn on if they are not needed, such as if the vehicle is parked or in reverse.
There are limitations to automatic headlights. Sometimes they do not turn on during heavy rain or fog, as the light sensor still detects enough light. Automatic headlights do not immediately turn on in cases of sudden darkness, such as if the vehicle drives through a dark tunnel. In these cases, it is important for drivers to use their best judgment and manually turn on their headlights if needed.Learn more about Car Parts & Maintenance
Airbags deploy when crash sensors located in the vehicle react to certain stimuli. There are several sensors throughout a car; each one relays certain information to and from the vehicle's airbag control unit. The unit then analyzes the data and sends a message to the unit's inflator system to deploy the airbag if needed.Full Answer >
Basic car safety equipment include adaptive cruise control, forward collision avoidance systems, autonomous braking and adaptive headlights. Many vehicles are also equipped with backup cameras, reverse backup sensors, side-view assist and parking assist.Full Answer >
To reset a check engine light yourself, disconnect the car battery, then turn on the headlights for a few minutes to drain the remaining energy and cause a hard reset. Finally, reconnect the battery.Full Answer >
Optical headlamp alignment refers to a method of ensuring that headlights on the front of a motor vehicle are configured to properly emit light at the correct angle. The method involves using an optical headlamp aligner to read the strength and focus of the light to determine any necessary adjustments.Full Answer >