Draincock yes, pass side, will require removal of plastic air dam(stone shield) if your vehicle is so equipped.
Never looked for engine drain nor will you after accessing rad drain. I'm sure there are frost(core) plugs (block heater goes in one) but again have never looked. When I'm down and under I'm usually working, not a tourist.
Link in above post will explain low coolant warning light's sensitivity to coolant level.
