i drove the truck this morning and all the gauges were funky. Check engine light came on so I went back home and shut the truck off . It won't start and it says Hybrid system needs serviced. Help

I've noticed on numerous occasions that my 2009 Sierra Hybrid has problems finding the right gear when applying the accelerator from a dead stop. The truck starts to move but then you feel an abrupt and significaqnt lurch in momentum as it shifts from EV to gas. Is this normal? It reminds of the days when i was just learning to drive a stick shift. Not good.