The reason Tesla owners tap the tail light with the charger is just a convenient means of making their car charger to be free of any particles such as sand or pin that may make the charger not work.
This act originally started when Tesla owners began having issues with charging their cars. However, it was found out that slight dirt inside the charger hole might affect the charger, thereby signaling the inability to charge.
Over time, Tesla owners began to tap the tail light with the charger customarily to remove any dirt or particles inside the charger.
Tesla is an electric vehicle that is powered by electricity. To make the Tesla vehicle work, one would need to charge it.
Hence, in this case, it is concluded that Tesla owners are only trying to act based on a precaution strategy.
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