My gear shift locks in my 1994 lexus400

This is replaceable but you should be able to put a screw driver into the broken off part and still push the engagement button for some ghetto shifting.

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

Could be the servo on the front diff not activating. Could be a power prob or failed unit.

first thing to check is transmission oil level and quality. If that is fine than your looking at either a valve body problem (valve body is what controls the selection of gears) or possibly a problem with the bands on the planetary gear set, they can be tightened in certain models. However i dont think it is the bands.
Does the overdrive only engage 4th gear? or does it feel like the gear ratios are different between overdrive and normal before the problem happened? some overdrive buttons engage final gear and some do as much as change gear ratios like in a cvt (contantly variable transmission) and some just change the timing in the gear changes to provide more rpm/power.
My best guess is that the valve controlling the overdrive in the valve body has failed and therefor you dont get a response from the transmission (i.e no gear shifting when overdrive is selected)

It has a brake-transaxle shift interlock. You should just push the brake in to shift, but if you have done that, and it still won't shift, with foot on the brake, push the shifter all the way into park. Sometimes they don't always go into park all the way. Also if you park on a hill, it puts pressure on the btsi, so you cant shift it. Have someone push the vehicle back, just enough to take the pressure off and it should shift. I had this happen to me with my Grand Am.

If you press the Break pedal and the shift button does not engage, Your Solenoid did not activate to release it out of park. either the: solenoid is out - Bent levers - Solenoid harness disconnected - Break activation wire may be damaged. this piece is easy to replace as it sits on the right side (passanger side) of the shift lever. remove center console cover to access the soleniod which is held on by two 10mm nuts. and a C- clamp

This depends on what system you have installed in your truck. If you have push button 4x4 with auto locking hubs then you would put your vehicle in neutral and press the 4x4 button. You then drive froward about 10 feet and the auto locking hubs should then be engaged.

If you do not have push button control and you have a gear shifter which controls the transfer case you would push the level in 4x4 hi or low depending on what you want (while in neutral) then drive forward about ten feet so the hubs lock. If you have manual locking hubs you need to manually engage the hubs before you put it in 4x4 mode,

Your button is lifting a little lock under the shifter, it is metal to metal, you have to take the console out, not a big deal, find the link and grease it up. I found mine to be broken and had to weld it up. Check it out.

Hello! It sounds as if your gear shift lock isn't working properly - it should release when you depress the brake pedal. You're not stuck, however. There is a small plastic piece to the side of the gear shift on the console - you can pry this piece up and off, revealing a hole underneath. Insert a screwdriver straight down and you will push on the manual gear shift release button - once you do that you will be able to move the gear shift. This can be caused by a few things - weak battery, or the release button is broken behind the brake pedal.


Hope this helps and good luck!

yea its not shifting again like before ? sounds like your transfer case solonoid has possably gone bad again .. these are a sometimes dont work item .. It is what shifts the transfer case into gear and it might be a little worn or weathered and not letting the switch kick it in gear all the way from the N position. thanks Jerry holler if you need more.