The answer is most likely a short in one of the many electrical wires contained within the car. Nissan has recalled some parts because of this type of problem, a repair shop should be able to let one know if the warning light is a real problem, or a flaw in design.
The 2010 Nissan Altima has an inline 4 engine.
The 2006 Nissan Altima has an inline 4 engine.
The 2009 Nissan Altima has an inline 4 engine.
The 2012 Nissan Altima has an inline 4 engine.
The 2001 Nissan Altima has an inline 4 engine.
The 2014 Nissan Altima has an inline 4 engine.
The 2005 Nissan Altima has an inline 4 engine.
The 2002 Nissan Altima has an inline 4 engine.
The 2003 Nissan Altima has an inline 4 engine.
The 2007 Nissan Altima has an inline 4 engine.
The 2011 Nissan Altima has an inline 4 engine.
The 2013 Nissan Altima has an inline 4 engine.