What are some ways to get to Big Bear Summit roundtrip?

My car broke down while I was up there last and I had no choice but to leave it there and have it fixed at a mechanics shop there. Now my car is done but it's such a pain to ask someone to drive me all the way up there from Redondo Beach, Ca. which is about 3 hours. I need some way up there whether its a bus or a train I just dont know who/what companys or such. ANYTHING WILL DO.