Vehicle Questions and Answers
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If the door ajar sensor in your Ford Explorer is constantly signaling that the door is open, it is likely due to debris on the sensor. I suggest first attempting to clean the sensor by spraying it with WD40. If this doesn't resolve the issue, it is probable that the sensor needs to be replaced. Replacing the sensor is a relatively straightforward task and should be reasonably priced, even if a mechanic is involved. A malfunctioning door ajar sensor can prevent your vehicle's alarm system from arming and may lead to your cabin lights remaining on, potentially causing your battery to drain overnight.
You can deactivate the door ajar feature in the Ford Explorer by disconnecting the module underneath the dashboard.
Turn off the plug at the rear gate to deactivate the door open alarm on the Ford Explorer. If you can't reach it, there might be a module situated under the dashboard.