Dead Battery on 2009 Suzuki Grand Vitara

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After towing my car for four hours in the towing mode, the battery is dead. Auto trans. I've had it towed twice to the dealers, first one just change battery, left on a trip and now its in a shop in Reno, won't know the out come until Monday. Wondering if anyone else has had this problem?? Thanks Ed
(1) Answer
Hi Ed,
I was looking into this and haven't found a thing. What did the shop in Reno say?
I'm curious, how do you put the vehicle into "Towing Mode"?