I have a 95 Lumina and I can not shift it into park or 1st, feels like something is stoping it. The shifter will also go into gears without pushing in the safety. Any ideas?

SOURCE: 2007 HHR gear shifter button engaged and stuck in park

I had the same problem and once I wiggled the shifter enough to get it out of park then the key stuck in the ignition started.

SOURCE: 2006 Impala stuck in park

You should be able to see a box type component on the backside of your brake pedal. When you step on the brake it sends a current to the computer telling it your on the brake and its ok to shift. Also known as shift lock control. You should also be equipped with an override on side of shifter, Maybe a small button to push or slide or even remove to reveal a small white button. Push it in and shift. Good luck.

SOURCE: wont shift out of park

you should also hear or feel a click when you press on the brake pedal, if not there is your problem

SOURCE: 2003 Chevy Trailblazer LT gear shift won't move out of park

The park shift lock needs adjustment. The solenoid that locks irt inplace maybe the cause of this

SOURCE: shift handle moves freely with out shifting trans

The shifter works off a shift cable which is connected to the transmission. The connection of this cable to the transmission is on the drivers side looking straight up were you can see it. The other end connects to the inner part of the shifting mechanisum where you shift
You can only get a replacement at any General Motos dealerships parts department