Yes, you do.
No it's not :)
The switch is on the front end of the transmission on the top. When you put the car in reverse a part inside the transmission pushed the back up light switch. It screws into the transmission - you can get to it with the car jacked up high enough.
You need to hook an OBD II code scanner up to the car to clear the light. Auto parts places will check your car for free and tell you what made the light come on in the first place. If you don't fix the problem, the light will more than likely come back on.
you need a new car
Use a code scanner to read the computer code. If the light is on, a computer code has been stored and it will tell you why the car stalled. If it's insignificant, you can clear the code and see if it comes back. Otherwise, you'll need to repair the problem.
YOU NEED A NEW TRANMISSION IF IT WON'T GO IN REVERSE.
To the back up light.
you need a new cam positioning sensor installed
They light up because of the filament in the light
I'm sure you do... I love when people puts up nonsense questions...
Yes, reduced back pressure in bad for valves
The car in the back is usually at fault in a rear end collision. The only exception would be if the car in front were backing up. The car in back is at fault for hitting you ,but if you are pushed into the car in front of you you are at fault for hitting that car.