Most car today have actually a “door ajar” warning irradiate on their dashboards. Once the device is functioning properly, the light lets you recognize that one or more of her doors is either open up or not closed securely. On part vehicles, the stems lid, rear hatch and even the hood can be part of the system.

You are watching: Close the door before you turn off the light

*

But the warning irradiate system can sometimes malfunction. If this wake up to you, it’ll be stroked nerves — and also if left unchecked, it might potentially drainpipe your battery.

How go the door ajar irradiate work?

Each door in your automobile is equipped with a sensor that deserve to tell whether the door is open or securely closed. The sensor frequently uses a switch v a spring-loaded plunger that is compressed when the door is closed, and is released when the door is open.

This activity opens and closes an electrical circuit, sending out a signal to your vehicle’s computer, activating the door ajar warning light once the door is open. This sensor is often also connected come the inner lights the go on and also off as soon as a door opens and also closes.

If you notification the door ajar warning irradiate while driving, you need to pull off the road as soon as that is safe to execute so and try closing all your doors again. That need to fix the problem.

However, a error in one of two people the electrical or mechanical materials can cause the door ajar warning light to remain on once the doors room closed, and also possibly cause the inner lights to remain on.

Can ns drive v the door ajar warning light on?

In many cases, it’s for sure to drive your automobile with the door ajar warning light illuminated, as lengthy as you have actually checked that all of the doors and the trunk are securely closed. However if your inner lights continue to be on, it is a different story.

Driving through the interior lights on can make it harder to check out outside, deserve to be distracting to various other drivers, and also is illegal in some places, Plus, if the internal lights room on constantly, consisting of when the auto is off, they can additionally drain your battery.

Additionally, the car’s computer system might no let you lock the doors. This have the right to be a safety problem when you are in motion, and also a security concern when friend park her car.

How can I deal with my door ajar warning light?

Once you’ve determined none the the doors or latches space open, over there is one basic thing you can try to fix your problem: Spray WD-40 right into the door latches.

This have the right to resolve mechanical issues, such as sticky latches and also gummed-up switches. Spray the WD-40 liberally, and open and also close every door steady a dozen times, to work-related the lubricant into the mechanisms. Apply more WD-40 and also repeat.

If the WD-40 resolve does not rotate off the light, we recommend having actually a mechanic take a look. A fix shop could do one of the adhering to to solve it:

Replace defective door switches or electrical components: One or an ext of her door ajar warning irradiate switches might be broken or worn out, or might be causing a short in the system. There might additionally be a fault in her car’s computer. Your mechanic can troubleshoot the door ajar warning light, identify the problem and also repair it.

See more: How Far Is A Military Click, How Long Is A Click In The U

Repair any type of structural causes: Vehicles the have had crash damage to your doors may have switches the don’t shut off properly as soon as the doors space closed. This can additionally happen come older vehicles, whose doors may have actually sagged and also are the end of alignment. A mechanic or a human body shop can repair the doors.