Gear shifter inop - Diamondback Sorrento 26" Mountain Bike

could be but as i can remember its a manual button that you depress to release gear lever.
if it does have a fuse it will be under interior or center console fuse. try swopping it to test if thats the problem

http://myautomatictransmission.com/DIY-move-stuck-shifter-from-park.htm

This should help.

These were known for having faulty brake light switche that would cause that problem as well as cruise control inop. I would check that first. It operates the shift-lock solenoid which releases the shifter. There were also some problems with the ignition switches, but mostly on the gm cars.

Check the gear change lever where it joins onto the side of the engine/gear box. Could have slipped off or stripped the splined shaft. If that is fine and when you move the hi/lo range, and the shaft on the gearbox moves its possible the gear change mechanical levers have broken on the inside of the box.

brake shift interlock. Have to step on brake to get shifter out of park. For safety to prevent unintended acceleration.

See owner manual for emergency bypass, if fuse goes or brake pedal switch is inop.

I repaired a Mazda 4x4 pickup by replacing both front hubs that were vacuum operated. One of the hubs was not engaging causing t the 4x4 to be inop.

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pull the shifter down to first when you stop then put shifter back into drive when you start to move...

i would check the brake switch and see if when the shifter is stuck are the brake lights inop at the same time

vehicle has a brake inter-lock system where depressing the brake pedal closes a pedal switch then energizes a solenoid in the shifter housing which will permit shifter movement(the pink lever is a manual over-ride in the event this sytem becomes inoperative). I would check brake pedal switch and a voltage signal to the solenoid when depressing which should isolate the inoperative component or missing voltage.

hi
my nissan titan 2007 batery died then i put new batery in but still cant trun on ????