2008 Pontiac Grand Prix Fails to Start and Electronics Go Awry

Question

My mother-in-law drove over this morning to pick up my wife, and when they tried to leave the car wouldn't start.  Not only that; the horn honked, the wipers started, the trunk popped open, and the brights turned on.  It did not start.

Is this a grounding problem, or is there some simpler solution?  If it's a grounding problem, how do I locate it?

Präriewolf · Accepted Answer

A computer reset fixed the problem.  I find this somewhat disconcerting that the computer could execute such ridiculous commands based off a turned key.

2008 Pontiac Grand Prix Fails to Start and Electronics Go Awry

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