Chevy 2007 Tahoe emergency flasher kill battery

6 messages, Last post on Jun 17, 2008 at 6:58 AM

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#5 of 6 Re: Chevy 2007 Tahoe emergency flasher kill battery [miked26] by kiawah Jun 08, 2008 (8:57 pm)
Replying to: miked26 (Jun 05, 2008 6:37 pm) This sounds really weird. I haven't done my homework on this yet (as I'm just tripping into this and need to get to bed), but I would suspect the circuit for the the flashers is either a 15 amp or 20 amp circuit. It can't draw any more than that, or the fuse would burn out. Drawing 15 amp, for 1 hour, is only 15 amp hours. There's no way that should draw down your battery. Something else would have to be causing the problem, perhaps daytime running lights or radiator fan if you are leaving the key in the ignition. Or perhaps the body control module is sensing you are still in the car, and keeping everything powered up. Is the key out of the ignition, when you have this drain-down?
#6 of 6 Re: Chevy 2007 Tahoe emergency flasher kill battery [miked26] by bochevy Jun 17, 2008 (6:58 am)
Replying to: miked26 (Jun 05, 2008 6:37 pm) Welcome to the wonderful world of Chevy electrical issues. I have an 03 Suburban that is on its 3rd battery. The first one was replaced with only 20,000 miles on it under warranty. My neighbor has an 07 Yukon XL and has had several times when she has needed a jump, as well. This has been a constant issue with these models and since they didn't do anything to resolve it with the new ones, I will try my luck with an Expedition EL when I am ready to trade my Suburban in.