Consequences of Leaving Car Doors Unlocked Overnight?

[VivianRose]

It can drain the battery, and in severe cases, may cause the car to run out of power and fail to start. 1. Power Disconnection: When you remove the key or lock the car doors, not all of the car's power is disconnected. For example, the car's anti-theft alarm is still operational. 2. Electrical Appliance Consumption: After you leave the vehicle, many sensors remain active, consuming a certain amount of power. The possibility of the car running out of power after just one day of forgetting to lock the doors is not very high. However, if your car does not require inserting a key, when you open the door, some electrical appliances will activate, such as the reading light or the door-not-closed-tight alarm. These appliances might drain your car's battery overnight.