I can't get my 2006 Chrysler 300 out of park

SOURCE: replacing brake light above trunk on 2006 chrysler

This is quite a process....

Removal
1) Disconnect and isolate the negative battery cable.
2) Remove the rear shelf trim panel.


3) Disconnect the CHMSL electrical connector (1).



4) Remove the two mounting fasteners (3) to the CHMSL (2).



Installation is opposite of removal.

Rear shelf trim panel

Removal

1) Disconnect and isolate the battery negative cable.
2) Remover the right and left lower and upper C-pillar trim.
3) Remove the nut that secures the center rear seat belt lower anchor to the stud on the floor panel and feed the seat belt webbing back through the opening in the top of the rear shelf panel trim (2) to the retractor.
4) Remove the push-pin fastener (1) that secures the trim (2) to the rear shelf panel.
5) Slide the trim forward to disengage the S-clip that secures the underside of the trim to the to the center of the shelf panel.
6) Remove the trim from the rear shelf panel.



Installation

1) Position the trim (2) onto the rear shelf panel(3).
2) Slide the rear edge of the trim rearward to engage the lens bezel of the center high-mounted stop lamp and far enough to engage the S-clip that secures the underside of the trim to the center of the shelf panel.
3) Install the push-pin fastener (1) that secures the trim to the rear shelf panel.
4) Pull the center rear seat belt lower anchor and belt webbing from the retractor through the opening the the top of the rear shelf panel trim and back down to the stud on the floor panel.
5) Install and tighten the nut that secures the seat belt lower anchor to the stud on the floor panel. Tighten the nut to 34 N m (25 ft. lbs.).
6) Reinstall the right and left upper and lower C-pillar trim.
7) Connect the battery negative cable.



C-pillar trim removal











Seat removal















Hope this all gets it done for you........

SOURCE: 2006 chrysler 300 stuck in park will not

your sifter release switch,,ck brake pedal arm,,you mite have to pull the under dash panel down to look,,see if the plunger on the brake switch is working,,by pushing down on the pedal see if the plunger is coming out,,ck fuse to possible,,hoped it helped,,

SOURCE: My 2006 chrysler 300 is stuck in park after

There's most likely a problem with the shift interlock system. To get you where you need to go you may over ride the system by placing the key in the on position, remove the liner of the cubby bin to the right of the shifter. This should gently pry out. There should be a button or an opening apparent now. While depressing this button you should be able to shift out of park.

Newer vehicles use electric solenoids to lock the shifter in park until the ignition is on and brake pedal depressed. If there is a fault in the brake switch, shift interlock solenoid, pcm or associated wiring you'll experience what you've described. The first thing to check is to see if your brake lights work. If they don't work then you know the brake pedal switch is likely the culprit and to focus you're attention at that part. The switch is mounted on the brake pedal usually above the pad. Look for physical damage, damage to wires etc. If they do work, it may still be the switch as some have more then one leg of the switch. One part of the switch may work while the other doesn't.