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Let's say you park your car outside at night and not in a garage. The AUTOMATIC lights will stay on long enough to light the area up and give you time to get inside. They will then go off. Lights in a car without auto lights are designed to be turned on without the ignition being on for safety reasons. If you are driving along at night and your ignition fails you lights will still be on. Also lights draw too much amperage to be routed through the ignition switch.

Let's say you park your car outside at night and not in a garage. The AUTOMATIC lights will stay on long enough to light the area up and give you time to get inside. They will then go off. Lights in a car without auto lights are designed to be turned on without the ignition being on for safety reasons. If you are driving along at night and your ignition fails you lights will still be on. Also lights draw too much amperage to be routed through the ignition switch.

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17y ago

Let's say you park your car outside at night and not in a garage. The AUTOMATIC lights will stay on long enough to light the area up and give you time to get inside. They will then go off. Lights in a car without auto lights are designed to be turned on without the ignition being on for safety reasons. If you are driving along at night and your ignition fails you lights will still be on. Also lights draw too much amperage to be routed through the ignition switch.

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Q: Why are cars designed to leave lights on when ignition off?
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