How do you reset the service engine soon light in a 96 Geo Tracker?

To reset the "Service Engine Soon" light in a 1996 Geo Tracker, you can disconnect the negative battery terminal for about 15 minutes. This will reset the vehicle's computer and clear the light. Alternatively, you can use an OBD-I scanner to clear the trouble codes that triggered the light. However, it's important to address any underlying issues that caused the light to come on to prevent it from reappearing.