redline727

I don't know the details of the Nissan "comfort access keys" but by any chance do you park in a garage and leave the key in the car? I ask this bc the car has to know when the key is in range so you can lock/unlock/start the car. If you leave the key in the car or in range it can cause the car to constantly recognize the key and be a draw on the battery.

Now I can't say for sure this is true for Nissan but I have seen this at work with BMW comfort access systems and when the key is left in the car it never goes into sleep mode. But batteries on BMW's are wired into many systems and even have to be programmed in newer BMW's so what I'm talking about may not mean anything on our cars but its worth a look. Always start with the easiest most inexpensive things first before you start spending any serious money.

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