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Changing rear 12V battery on GS450H 08 model.

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Asked this question two times now and getting no love from anyone. Does anyone know the solution to rear battery heat sensor. Replaced battery but the new one's aren't like the original panasonic and don't have a heat sensor connector on the battery. So now my Lexus GS450H is showing check hybrid system warning message and it has been diagnosed as 'not having the heat sensor connected. Is there any easy fix or solution to this? I don't believe the original batteries are still made hence my problem. 

hope to hear from anyone


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