Where is the check engine light reset location on a 1999 Cadillac Catera?

To reset the check engine light on a 1999 Cadillac Catera, you can use an OBD-II scanner to clear the trouble codes, which will turn off the light. Alternatively, you can disconnect the car battery for about 15 minutes to reset the system. However, if the underlying issue is not resolved, the light may come back on. Always address any diagnostic trouble codes before resetting the light to ensure proper vehicle function.