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I have a 2005 G6-GT. Only within the last month or so when first starting the car in the morning does the Trunk Ajar sensor sound & display on the DIC. I check the lid & it in fact is ajar. I close the lid & sensor returns to normal.
I did a careful search on this topic & found only door ajar problem due to professional alarm installation. So, why now after more than four years is this sensor periodically going off? I've also found the sensor going off when I start the car to leave work after 9 hours or so. Again, the lid is ajar. Keep in mind, the occurrence of morning & evening has yet to happen on the same day. Any thoughts...???
It's an annoyance only right now, so I won't be addressing a GM doctor call at this juncture.

I did a careful search on this topic & found only door ajar problem due to professional alarm installation. So, why now after more than four years is this sensor periodically going off? I've also found the sensor going off when I start the car to leave work after 9 hours or so. Again, the lid is ajar. Keep in mind, the occurrence of morning & evening has yet to happen on the same day. Any thoughts...???
It's an annoyance only right now, so I won't be addressing a GM doctor call at this juncture.