Skip the auto shop - Our mechanics make house calls

Q: Car door alarm sensors keep going off while car is on, because of that I can't even lock my doors when it's off.

asked by on

Last night after cleaning out my car I closed all the doors then tried to lock it and the extra long beep went off (which usually only happens if my keys are in the car or if the doors are opened). The "open door "light on my dashboard was blinking so I rechecked every door and closed them all again, and it still said they were open. I reluctantly just did not lock my car and called it a night. And then this morning when I left for work the same sensor was still blinking only this time it BEEPED the entire time I was driving(not or long beep a short consistent beep beep beep), because supposedly "a door was open" even though I checked and re checked and they were all closed. So now I cannot lock my car or drive without it beeping like crazy because of the "open doors". I leave tomorrow morning for a drive to San Francisco and this can't be an issue. How do I turn this off or fix it?

My car has 56600 miles.
My car has an automatic transmission.

Hi and thanks for contacting Your Mechanic. What seem to happen is a door sensor / switch has failed. Turn on the dome light to door and shut all of the doors. See if the light dims after shutting all of the doors. If the light does not dim, then there is a door switch that has failed. Look at the switches on the cab where the door seals and see if any of the switched look damaged or at an angle. Most of the time the driver door switch fails for that door is used the most. Check each switch for power and see which door switch does not have power on the ground side when activating the switch. Replace the switch that does not work. This also goes for the back hatch switch as well. If you need further assistance with your vehicle, then seek out a professional, such as one from Your Mechanic, to help you with your door light being on and the beeping noises.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Car door alarm sensors keep going off while car is on, because of that I can't even lock my doors when it's off.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How does the Smart Lock system work?

Your car is equipped with a Smart Lock system designed to help reduce the chance that you’ll lock your keys in the car. Here’s how it works: When a front door is opened and the door lock switch used...

Q: anyway someone can call me 5306468209

Unfortunately, there is no question here to answer. If you have a question you would like answered by a qualified professional please visit yourmechanic.com and click on the ask a mechanic link to ask your question.

Q: Rims that won't dent?

Hello! Unfortunately there are no rims that are completely resistant to dents or scratching. However there are tires made specifically to provide extra protection to rims. To help protect the rims from damage you can purchase tires with a thicker...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...