Can the car start if the door is not properly closed?

[Matilda]

The car can start if the door is not properly closed, but there will be a voice prompt asking to close a specific door. Below is relevant information about car doors: 1. Design requirements: Ensure convenient passenger entry and exit, with the maximum opening angle controlled at around 65° to 70°. During the opening process, there should be no interference with other parts. The door must lock securely when closed and should not open by itself while driving. 2. Definition: The car door provides an entry and exit passage for the driver and passengers, isolates external disturbances, mitigates side impacts to some extent, and protects the occupants. The aesthetics of the car are also related to the design of the doors. The quality of a car door is mainly reflected in its anti-collision performance, sealing performance, and ease of opening and closing, among other functional indicators. Anti-collision performance is particularly important because, in the event of a side collision, the buffer distance is very short, making it easy for passengers inside the car to get injured.

[DominicFitz]

I've encountered situations where the car was started with a door not properly closed, and most modern cars can indeed start in this condition. The door status sensors are primarily connected to the interior lights and alarm system, rather than directly to the engine starting circuit. Therefore, the ignition process remains unaffected. However, you might hear a continuous beeping sound or see a warning light on the dashboard reminding you that a door isn't securely closed. Ignoring this is dangerous, as the door could swing open while driving, potentially causing an accident. It's important to develop the habit of checking all doors are properly closed before starting. Sensors can sometimes malfunction due to issues like oxidized or worn contacts leading to false alerts. Regular cleaning of door latches can prevent problems and ensure safe driving.

[Turner]

Many times I forgot to close the car door tightly when starting the car, but it still started without affecting the engine ignition. The car starting process mainly relies on the battery, ignition switch, and main wiring harness, while the door system is responsible for the warning lights and beeping sounds. For example, in my car, if the door isn't properly closed after starting, it will beep and a red light will come on to remind me to correct it. Driving with the door open is highly risky, especially at high speeds where airflow can cause the door to wobble or suddenly open. It's recommended to develop a habit during the starting process: first check the rearview mirror or gently pull the door to confirm if it's locked. Aging sensors may make the alarm less sensitive, and getting it checked at a repair shop is not expensive.

[VonLola]

A car can usually be started even if the door isn't properly closed, as the starting system doesn't rely on door sensors. Having the door open won't prevent ignition, but it will trigger an interior warning sound and dashboard light. This alerts you to close the door promptly to avoid issues while driving. It's safer to drive after ensuring all doors are shut, reducing the chance of accidents. Some vehicles also link this to the seatbelt warning system for dual protection. Remember to perform a quick door status check before starting your car daily to maintain system efficiency.