* A lever on the steering column stalk: This is the most common method. Look for a stalk that controls your headlights. There will likely be different positions or settings on that stalk. Pushing or pulling the stalk toward you (or up) from the low beam setting is usually what activates the high beams. Sometimes there's a separate switch, but a single stalk is typical.
* A floor switch (less likely): While uncommon on most cars of that era, some models *might* have a separate floor-mounted switch for high beams. Check under the steering wheel or on the floor near the steering column.
If you can't locate it, consult your owner's manual. It will have a diagram showing the controls and their functions. If you don't have the owner's manual, you can often find a digital copy online by searching for "1992 Chevy Corsica owner's manual" (PDF versions are common).
