2001 Cadillac Seville SLS how do I reset the check engine soon light without a computer or disconnecting the battery?

To reset the check engine light on a 2001 Cadillac Seville SLS without a computer or disconnecting the battery, turn the ignition key to the "On" position without starting the engine. Then, press the gas pedal to the floor three times within five seconds. This method may clear the light, but if the underlying issue isn't resolved, the light may return. Always ensure to address any underlying issues that triggered the light.