I have a 2006 Chevy Trailblazer 4x4. I was parking it and the shift lever went into park by itself. The dash light says its in neutral. But now it will not come out of park no matter how i try. HELP

Sounds like a transmission valve body failure. Could be the solenoid as well, you might as well replace that as long as you're in there. Is the check engine light on? Some auto parts stores will scan it for free.

no it doesnt

Could be out of adjustment.

shift lever does not move out of the PARK position with the ignition ON and the brake pedal pressed ?

here is what the code means.
http://engine-codes.com/p0705_mitsubishi.html

P0705 Mitsubishi Description The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM).


When is the code detected? The transmission range switch detects the selector lever position and sends a signal to the TCM.

Do the brake lights work? If so, try turning ignition to on, no dash lights, and not to start and shifting to neutral then try to start it. If this allows it to start in neutral. Then it is the Transmission brake safety switch. If the brake lights don't work it's the brake light switch.

Since the lever is obviously no help, try this:

BRAKE LIGHTS AND SHIFT LOCK
Look under the dash, on the brake pedal arm. There are one or two switches that activate brake lights and/or shift unlock. Check for loose mounting nut or a missing rubber nubber. Is the brake pedal coming all the way back up? Look on the floor for something not usually found there. These switches are adjustable and it may be as simple as adjusting them. Have a helper look for brake lights on and shift lever unlocked while you push and release the switches with your finger. Depress the brake pedal to get it out of the way. Remember to set the park brake first. Could just be a bad switch or loose connector. Check fuses and the bulbs. Is shifter fully in Park?

2002 chevy trailblazer on neutral mode, trailblazer can be pushed easily,but shifter is stuck on park. vehicle will start.the push button on shifter will not engage

sounds like it is slightly out of adjustment - on the shift cable

Shifting to NEUTRAL
To shift the transfer case to NEUTRAL, first make sure
the vehicle is parked so that it will not roll:
1. Set the parking brake.
2. Start the vehicle.
3. Connect the vehicle to the towing vehicle.
4. Put the transmission in NEUTRAL (N) or have
the clutch pedal pressed for vehicles with
manual transmission.
5. Shift the transfer case to 2HI.
6. Simultaneously press and hold the 2HI and
4LO buttons for 10 seconds. The red NEUTRAL
light will come on when the transfer case shift to
NEUTRAL is complete.
7. Shift the transmission to REVERSE (R) for one
second, then shift the transmission to DRIVE (D)
for one second or FIRST (1) for vehicles with
manual transmission.
8. Turn the ignition to OFF.
9. Place the transmission shift lever in PARK (P) or
FIRST (1) for vehicles with manual transmission.
10. Release the parking brake prior to towing.

************************

Shifting Out of NEUTRAL
To shift out of NEUTRAL:
1. Set the parking brake and apply the regular
brake pedal.
2. Start the vehicle with the transmission in PARK (P)
or FIRST (1) for vehicles with manual transmission.
3. Press the button for the desired transfer case position
(2HI, 4HI, AUTO 4WD or 4LO).
4. Put the transmission in NEUTRAL (N) or press the
clutch pedal for vehicles with manual transmission.
5. Shift the transmission lever to the desired position.
After the transfer case has shifted out of NEUTRAL,
the red light will go out.
6. A re-engagement sound is normal when shifting out
of NEUTRAL.