Employers generally prioritize major GPA over cumulative GPA, especially in technical fields like engineering, where performance in core courses is crucial. While a strong cumulative GPA can provide an edge, particularly against candidates with a 4.0, the impact of poor grades in electives varies depending on the subject matter. Communication skills gained from electives can also be significant, as employers value engineers who can effectively present and document their work. Ultimately, the importance of GPA can differ by employer, with some placing less emphasis on it if other qualifications are strong. It's advisable to strive for good grades across all courses, but particularly in major-related subjects.