Is modifying taillights considered illegal modification?

[AngelinaMarie]

If you replace a broken taillight with one that is identical to the original, it is not considered illegal modification. However, if you install aftermarket parts, then it is illegal modification. Relevant information is as follows: 1. Introduction: The rear of a car has turn signals and brake lights, both of which are very important. 2. Following distance: When the driver presses the brake pedal, the brake lights illuminate to alert drivers behind to maintain a safe distance. If the brake lights are broken or not bright enough, it can easily lead to rear-end collisions. 3. Turn signals: Turn signals need to be activated before changing lanes or making turns. They should be turned on in advance so that drivers in front and behind can understand your intentions.