Power windows or electric windows are automobile windows which can be raised and lowered by pressing a button or switch, as opposed to using a crank handle. Power windows are usually inoperable when the car is not running. This is primarily a security feature.

It would be a simple thing to allow electric power windows to be operable when the ignition is turned off, however it would also make the car much easier to steal. Some systems offer the compromise of leaving power applied to the windows until a passenger door is opened at which time the window power is removed.

Power windows have an electronic motor attached to a worm gear, which is attached to several other gears, to create torque to lift the window. A long arm is attached to a bar at the bottom of the window. One end of the arm slides into a groove as the window rises up.

A windshield wiper or windscreen wiper is a device used to remove rain, snow, ice and debris from a vehicle’s front window. A wiper generally consists of a metal arm; one end pivots, the other end has a long rubber blade attached to it. The arm is powered by a motor, often an electric motor, although pneumatic power is also used for some vehicles. The blade is swung back and forth over the glass, pushing water, other precipitation, or any other impediments to visibility, from its surface.

Windshields with small cracks or chips can usually be repaired if they are small enough, helping you avoid replacing the sensor parts. If your windshield has a crack that is larger than a currency bill, then it really should be replaced, along with any technology systems attached to the windshield. If installed poorly, the illumination detection may turn the lights on when not needed, thereby draining the battery, or not turning on when it is needed. Sensor failure results in the headlights illuminating during broad daylight when not needing to be on, or the ambient light sensor could have worn out.

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Windshield Repair and ReplacementRear Glass ReplacementDoor Glass ReplacementWipers MotorsPower Window RepairWindshield & Rain sensors Rain Sensors A few easy ways to tell if you have a rain sensor system installed in your vehicle. Rain sensors and light sensors usually appear very similar.

Do the wipers start automatically when it’s raining? Is there a square panel mounted on the windshield near the rearview mirror? If you’re looking inside the cabin of your car from the outside, the sensor would be located behind the rearview mirror and you can tell it’s the sensor because a strip of lens or film will appear facing the outside.

Some cars may have one or the other, or both. The rain sensor is also typically adjacent to the light sensor. This system turns the windshield wipers automatically by detecting rain on the windshield.