Question about 2009 GMC Acadia
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Posted on Jan 02, 2017
SOURCE: GMC Acadia Battery?
I have been having this problem after 40K miles now. I dont know if its the battery or the fact that GM, in all its infinate wisdom (NOT) decided to use a LAN system for everything in the car. This means that EVERY circuit is ALWAYS powered, whether the car is on or not. This is why, if you try to find a switchable fuse to tap into for a radar detector or Garmin you wil be unsuccessful. Also, this is why the cigarette lighters always on. Im not sure what the actual load is on the system when the car is off due to the LAN being powered, but it could be enough to kill the battery after a couple days if the alternater hasnt been run to charge it up.
i have had a radar detector hooked up for about a year now which is ALWAYS on, even when the car is off and it has finally started to take its toll on the battery, I think. The problem isnt your specific car, its the way they designed ALL of them.
Posted on Jan 02, 2010
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