If you’re talking about weighted GPA, then I concur with the previous poster; although SAT scores above 2000 would help, unless you got something in the range of 2200-2400, most UCs would be a reach (other than Riverside and Merced; the former a target, and the latter a low target).
If you’re talking about unweighted GPA, calculate your UC GPA! You still should be able to make it into a good UC. I knew someone with a ~3.3 UW GPA (somewhere around a 4.0 or a 4.1 weighted) who made it into UCSD engineering.
This also depends on your extracurriculars–although UCs don’t put that much weight on them, they still put more weight on ECs than your standard state school. If you’ve spent a lot of time on them, it would help greatly.