Car turned off when I press the brake now no power at all battery fully charged on 2003 Pontiac Grand Am

I turned it on to leave pressed the brake to go in reverse it completely shut off . Then I went to turn it back on and no power tried to pop the trunk no electrical power .

by in Minneapolis, MN on October 25, 2013
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1 answer
ANSWER by , October 25, 2013
Clean and tighten ALL battery cables to start with! I think there are two going to the positive term. and they do give some problems.