Where is the 1999 Cadillac Seville sts cutt-off switch?
There's no standard "cutoff switch" in a 1999 Cadillac Seville STS like you might find in a race car or some aftermarket security systems. The only way to completely stop the engine is to turn the ignition key to the "off" position or, if the car is equipped with a push-button start, to press the button again.