Is it possible to replace the spring in the push-in shifter button

Hi,

There is not a lighter spring but there are somethings you can do to make it better. Remove the shift knob and see if the button is not broke or dirty, Check for any dirt or grime causing the the button hard to depress or stick.If your shift knob button is not broke and clean, Check the shift linkage with the shift knob off the shift handle by pressing down on the lock button to see if it is wore out or sticking. It may just need clean lubed up and adjusted or it may need replaced.
I'm attaching a video for you to watch on how to remove and replace shift knob.
Let us know if this information was helpful and what it took to make the repair so we can help others with the same problem.

Thank you,
Joe Terwilliger

https://youtu.be/mZ5QvUlP4kw

I wouldn't recommend clipping the spring, Think of a coil spring as a lever, the longer the wire the more leverage you have. So given the same wire material, and wire diameter. A shorter length will have less leverage and be stiffer (require more work on the part that is being moved).
What you can try is small diameter spring same length. Or an aftermarket custom shift knob with a different type of release, One she could us her whole hand instead of her thumb. ( Ask your local parts stores if they handle Honda aftermarket accessories.)
Let us know if this information was helpful and if you was able to get a smaller spring or
customer shift knob, And what fixed it so we can help others.

Thank you,

Joe Terwilliger