The oil drain plug on a 2002 Pontiac Grand Prix is located on the
bottom of the oil pan, which is situated underneath the engine. You'll need to get underneath the car to access it. It's usually a fairly straightforward location, but the exact position can vary slightly depending on the engine (3.1L, 3.4L, or 3.8L). It's typically near the front of the oil pan.
Important Note: Before attempting any work on your car, consult your owner's manual for the precise location and any specific instructions. Also, remember to use proper safety precautions, including jack stands and appropriate draining equipment.
