Why do the car lights stay on after the engine is turned off?

[SanSabrina]

The ACC control wire was probably not connected during installation. The aftermarket LED daytime running lights are not part of the original vehicle system and cannot be controlled by the onboard computer. If the ACC control wire is connected, the daytime running lights will turn on when the vehicle's ACC is working and turn off when the engine is shut down. Without the ACC control wire connection, the daytime running lights are controlled by the power supply voltage. Additional information: Enhancing headlight brightness improves driving safety. As spring arrives, increasingly frequent rainfall exacerbates the situation for drivers who already find their headlights insufficiently bright. Rain reduces the penetration of light, and the high reflectivity of wet roads creates significant visibility challenges for nighttime driving.