I'm having a problem with my car on 2007 Pontiac G5

i have a 2007 Pontiac G5 while driving all at the same time the doors will unlock, the speedometer goes to zero, the mileage reads power steering and the transmission goes to 2nd gear (no matter how fast your going), if you put it on trip it shows 000-000

Asked by for the 2007 Pontiac G5
scan all modules foe codes then post so we can adv