fuel pump
Check the wires at the battery connection, then at the opposite ends of these cables. These are the most likely areas to be losing power.
More detail is needed. Does it crank? Battery new?
the ground to the battery i had the same problem on my truck
take out the battery or press the restart button
No it will not restart
If you're driving a manual, it means that you've stalled out. Turn off the car and restart.
starter
If it won't crank, which is probably what you really have going on, it means your battery went bad while you were driving.
could mean anything. see if it happens again then see a mechanic
I have a 99 suburban and the battery cables can become loose. You have to clean and tighten them regularly. It has happened to me a lot. It is a design fail on gmc's part.
take the battery out : )
take out the battery