How you fix them would depend entirely on what's wrong with them. You'd have to diagnose the problem first, bulbs burned out, blown fuse, bad switch, broken wires, etc.
You can't fix it till you know what's wrong with it.
There is no way to change gear ratios.
In order to fix it, you'd have to determine what's wrong with it, whether you have a bad brake switch, a blown fuse, a bad steering wheel switch, a bad servo, or some other problem.
It is not repairable, you should replace the instrument cluster.
Replace the instrument cluster.
check fuses, check brake light switch behind brake pedal.
To fix a 95 Dodge Dakota with no brake lights, first check to ensure the fuse has not blown. If the fuse is good, check to ensure the brake light bulbs are not burn out.
These parts are only fixed by replacement.
Check the fuse, the bulbs, and the brake light switch.
take it to a garrage
remove the battery terminals for a minimum of 10 minutes.
There is no fixing a broken motor mount. Replace them with a new ones.