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You need to address the faulty door ajar switch which is stuck. If you have access to a good scan tool, it will tell you which door is showing ajar. If you do not have a scan tool then you will have to check each one. Sometimes you can soak down each door latch with a penetrating lube to free up a stuck switch with a door closing sequences. If this fails then you must remove each door panel and each door latch and then remove the door ajar sensor and clean and lube it. If you need these directions please reply.
Then you need to remove the trim and access the switch to clean it up and lube it for re-installation. Download the trim panel removal instructions <<<HERE>>> and then remove the switch from the latch.