I have a 2001 Saturn Ls I changed the front brake pads and now the car won't come out of park..It starts up fine just won't go into gear.

bleed the brakes again starting at the longest line at the rear and work forward . The indication is still air in the lines.

The first thing to do is check the brake lights, it they are not working the park lock system will not release the shifter.

there is a solenoid triggered by the brake switch to allow the shifter to be moved from park that can go bad try and shift it when the car is in the assec position

If the shifter won't move, you could have a problem with the brake switch or the solenoid that unlocks the shifter.

You probably have a linkage problem that needs to be addressed. For now, start your car in neutral, and instead of park use neutral and set the parking brake. Also turn your wheels toward the curb if you park on a hill just in case the parking brake fails

BEST TO BUY BRAKE PADS AT DEALERSHIP,THEY COST MORE BUT THEY ARE THE REAL DEAL GENIUNE ORIGINAL PARTS.

these have a safety system so the shifter won`t go into any gear unless the brake is pushed(indicating someone sitting in the drivers seat),if the brake lights aren`t working this indicates that the fuse that operates the shift lock solenoid and brake lights is not working and needs replacing.check the fuses and replace the fuse and things will probably return to normal.

On the front you go buy a large C-Clamp
& use one old pad against the caliper piston

On the rear you need a tool to turn the parking
brake in while pushing the piston in

On the back you need to open the bleeder valve
to make it easier

You should be flushing your brake fluid on ALL
your vehicles every 2 years

You don't put on new pads without machining or
replacing the rotors & you have to remove ALL
rust from caliper & pad abutments & sliding surfaces
and put anti-seize on contact & sliding points

I checked my clamp --it is a craftsman 4" from
Sears Hardware

On the back you get the small cube from the auto parts
store & choose the side with the two smallest pins
& file flats on the outside of them to fit the caliper
piston. Don't think they make an exact tool for the LS

Ratchet up parking brake in back when done & push pedal
a couple times after beelding with engine running & a helper
to seat pads

On the back the piston notch goes up or the pads won't
go down

Brake interlock, your foot needs to be on the brake to shift out of park. If you are doing that and you still can't shift then check all your fuses, the lock circuit may be out

Check the condition of front disc brake pads, if they are in need of replacement a preset little metal arm starts rubbing the discs and will make a whining noise. It doesn't do any damage but it's irritating to listen to.