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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  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: Locks don’t all work, might be electric problem

The door latch assembly has a lock actuator as part of it. The complete assembly, except for a couple internal pieces, is made of plastic and doesn't last as long as it used to when it was made of metal....

Q: My 2013 Ram 2500 will not go into 4th, 5th, or 6th gear, when it tries to go into 4th gear it does not do anything

Your vehicle was equipped with Chrysler's 66RFE transmission. This transmission model has not been hugely problematic and I do not see many reports of the type of failure you are describing. I see only one similar report of shift failure,...

Q: My alarm key for my car won't work

You may need to shut your door, lock your door again, and then try unlocking it. If that doesn't work you may need to replace the battery in your remote. Unfortunately, without more information about the vehicle, it will be...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.