Volume button caved in and not making contact. Can I fix it?

Sounds like oxidized contacts.
If volume is a turn-knob, then wiper-track (inside potentiometer) is worn.
If it's a PTM (push-to-make) standard button, the button contacts may be dusty/dirty/oxidized.
Suggest you:
buy a contact cleaner such as Servisol,
open case,
identify controls
and squirt liberally to wash out any gunk.
Move/press/wiggle scratchy one to help 'scrub' the contacts clean.
If this doesn't help try have control replaced.

The Witness Song - Nick Cave

www.nickcave.com/lyrics/nick-cave-bad-seeds/good-son/witness-song/

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The Witness Song Nick Cave

Best way is to clean the contacts inside. Pull out the button and use Contact spray while turning the shaft left and right.

I think using a cave marketed for reptiles would be fine. Three things to consider:

1. Was the cave previously used in a reptile habitat? When I use rocks from outside I usually boil them to kill any bacteria or microbes that may be harmful to the fish. If the cave is not plastic or wood, I would recommend doing the same.
2. Is the cave painted? Some people are concerned about paint harming their fish. I assume most paint would be fine, but make sure it won't flake off in the water.
3. Living Plants? I hate to state the obvious, but the plant will die and the fish may or may not have difficulty if they eat the plant.

All in all, I wouldn't worry too much about the cave. Just make sure it's clean and let your fish enjoy it!

try a piece of alum. foil next time before you cut the buttons out---may still work with clear tape over it.

I work for a factory that makes seats. i know that we send out service parts for broken seats that we have manufactured. you could probably contact a service rep for the make of your car

If your using front button to change channel then try to use remote..

If on the remote is fine then the button board of your TV got faulty usually it cause bad contacts of button (vol+,vol-) so that if you press any button the volume button activated due to auto contact..

You can replace the button or replace new button board assembly..

Sounds like a loose connection with one of the audio/video cables inside the TV or a short. Contact a qualified service technician to do the fix.

Programming will not help. The contacts in the mouse are compromised and noting you will do will fix the condition. Replacement is the only way to go.

Remove any screws you can see and pry the case open. you will see a rubber pad and a circuit board. Clean both with alcohol and dry. reassemble and it should be OK