Can't shift out of park in automatic

spring --damaged clip--debris --need to remove cover to access the bottom of shifter ---and possible shift interlock failure
https://www.youtube.com/watch?v=0LDkoecODII this link shows bypass and fixes

Just turn the car on, but Dont start it and put it in nutruel then start it... This she work til you can afford to fix it...

Rock the car back and forth to remove parking pin from park .

Shift - interlock system problem .
Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of PARK position. The system consists of the following components:
• The automatic transmission shift lock control solenoid
• The automatic transmission park lock solenoid
• The automatic transmission shift lock control switch
• The transmission range switch
With the ignition in the ON position, battery voltage is supplied to the automatic transmission shift lock control switch. The circuit continues through the normally-closed switch to the automatic transmission shift lock control solenoid. The transmission range switch provides a path to ground for the automatic transmission shift lock control solenoid in the PARK position. With the automatic transmission shift lock control solenoid energized the shift lever is mechanically locked in the PARK position. When the driver presses the brake pedal, the contacts in the automatic transmission shift lock control switch open, de-energizing the automatic transmission shift lock control solenoid. This allows the shift lever to move from the PARK position. When the shift lever is out of the PARK position the controlled ground contacts in the transmission range switch open. This prevents the automatic transmission shift lock solenoid from energizing when the vehicle is out of the PARK position.

press very ******* the brake pedal! if problem persists likely, you have a module problem, easy fix!

Your shift cable has stretched.Replace cable.

Is there any shift lock button near gear lever if yes than push it and give it a a try if no than I think you have you flush the gear oil and replace the gear filter too.

http://www.nissanclub.com/forums/2005-2006-nissan-altima-se-r-discussion/225903-shift-lock.html

your owner's manual will tell you how to over-ride the shift lock. ususally there is a hole covered by a plastic piece, next to the shifter. pop out the cover and push the button to shift. The shifter will lock back up in park until you fix the problem. You may want to set the parking brake and use neutral when you park the car instead of " Park". That way you will not have to push the release button-it will eventually break.

make sure your brake lights work; as the shift lock is powered by the brake light fuse-replace as needed.

SOUNDS LIKE SHIFT INTERLOCK SOLENOID IS STUCK. TRY GIVING A FEW HITS AND PUSH ON AND OFF ON BRAKE PEDAL AND SEE IF YOU CAN FREE IT UP. JAR IT AROUND A BIT LIKE TRYING TO WIGGLE IT OUT WHICLE PUSHING ON AND OFF ON BRAKE PEDAL SEVERL TIMES. DO YOU HEAR A CLICK IN CENTER CONSOLE WHEN PUSHING BRAKE?

There is a switch under your break padal, which is responsible for tail lights and gear lock. if that switch is working fine and your tail lights are working fine then check the electronic lock of gear which is under the cover of gear.