Side marker lights are illumination devices attached to the front and rear sides of motorized vehicles and trailers. They function as auxiliary safety lights that can be seen by other drivers when the vehicle operator turns on the headlights.

What does a marker mean on a car?

It indicates the vehicle may be of interest to them and therefore the police are much more likely to pull it over. … If the police stop and search a vehicle and find drugs then they will put a marker on the vehicle. This way, the police know that it’s possible that there could be drugs in the vehicle in the future.

Where are marker lights on a car?

Side marker lights are auxiliary safety lights that give other drivers a clear view of your vehicle’s position and direction of travel from various angles. They illuminate with your vehicle’s headlights or blink with the directionals and are usually located near your vehicle’s bumper, fender, or rear quarter panel.