2005 Nissan Altima 2.5s automatic sometimes shifter will not go into reverse. Doesn't do it all the time. Should I replace shifter solenoid switch?

I think your going to pull that trans again
& go thru it once more

Wasn't built correctly

Usually a sign of a faulty brake light switch or lock solenoid on the shifter. You may be able to get the shifter out of park by turning the key to the unlock position but not "on".
There may be a button you can push next to the shifter to unlock in an emergency. Check your owners manual.

This seems to be a common problem. Sometimes something like a pen or other items find their way to the shifter linkage and it can cause the linkage to bind preventing it going into park etc. Or you may have a bad shifter cable. Remove the housing around the shifter and see if anything did get in the way of the shifter. While the housing is of, move the selector up and down from park to drive. This will give you a better view of what is happening.

1st, have someone step on brake pedal while you check to see if your brake lights are working, if yes proceed to step 2, if not check your brake light fuse(Left side of dash fuse#20- 10amp)IF fuse is good replace brake light switch on brake pedal. 2nd Step (brake lights ok) Turn key on engine off, press and release brake pedal several times slowly, listen for a click and and pulse on shifter handle. IF yes you have a shifter malfunction replace shifter assembly. IF no, inspect shift interlock solenoid and or relace solenoid and cable. You should see a small access cover about the size of a peanut around base faceplate of shifter assembly use small screwdriver and remove cover, use screw driver to press button underneath plate and release shifter into reverse and drive gears(this is manual overide) if you need to move vehicle in the meantime.

Shift cable needs adjusting or replacement if rusted.

The problem that I could see is the transmission/shift solenoid. The solenoid thing is located inside the transmission. The repair should run $200-$250 or there abouts. If you don't fix it quickly though, you will wreck the transmission and you don't want to know how much that costs!

You may also contact the manufacturer for second opinion.

Hope this helps and have a great evening!

Is there any warning lights or malfunction besides this?? There are three main parts that may cause this: Park/Neutral safety switch(located on the transmission), Brake pedal switch(located at the brake pedal), Shift lock solenoid(located below the shifter). P/N safety switch prevents the shifter from shifting out of (P) or shifting into (R/P) while vehicle is in motion. Brake pedal switch sends a signal to release the shifter lock to shift out of park. Shift lock, locks the shifter as describe above and is located at the shifter base. I recommend inspection/replacement of the shift lock solenoid and P/N safety switch as its an intermitted problem. Hopefully this helps

You must remove the console yes, and you need to replace the shift lock solenoid.

That is the shift interlock solenoid. It clicks when you hit the brake pedal, and should do it all the time. They are mounted under the shifter and are notoriously loud....Nissan has a fix for it (just a little rubber bumper) Go to nissanhelp.com, sign up and go look at the TSBs for your car. You will find it there.