A lower than average GPA doesn’t preclude attending medical school, but does raise challenges.

Strong GPAs, MCAT scores, and admissions essays are crucial for getting into medical school. However, sometimes life can throw unexpected roadblocks in your way. Whether it's getting off to a slow start in college or having unexpected personal problems, there are a wide variety of reasons premeds end up with low GPAs.

The top three key ways to improve your overall GPA for your AMCAS (American Medical College Application Service) and other applications are:
- Postbaccalaureate programs
- Special master's degree programs
- Other options
1. Time off
2. Osteopathic schools

More info
http://www.usnews.com/education/blogs/medical-school-admissions-doctor/2012/01/09/what-to-consider-when-applying-to-medical-school-with-a-low-gpa?int=a93d09