Sounds like you mean the detent actuator has failed. The piece that moves when you push the button on the side of the knob to move it to reverse or park or the lower gears.
That would probably only be available at a salvage yard as a complete shift assembly.
Go to www. Car-part. Com enter in the information and that you are looking for the shifter assembly and it will show you a list of salvage yards in the US that have the part. The ones I see on there for my area run about fifty to eighty dollars.
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Wednesday, August 15th, 2018 AT 5:57 PM