1993 Cadillac DeVille Owner's Manual - Page 78

I You can also unlock your doors from the trunk by pushing this button. If your Cadillac has the Security Packageoption, you willnot beable to unlock your doors from the trunk. Illuminated Entry System (Option) When you push the door handle button, you'll get a light around the door lock cylinder. You'll be able to seewhere to put the doorkey when it'sdark. And the lights inside your Cadillac will go on. They'll go off when you start your engine, or when 20 seconds have passed. KEYLESS ENTRY SYSTEM (OPTION) If your Cadillac has this option, you can lock and unlock your doors or unlock your trunk from up to 30 feet (9 m) away using the key chain transmitter suppliedwith your vehicle. Your Keyless Entry System operates on a radio frequency subject to Federal Communications Commission (FCC) Rules. This device complies with Part 15 of the FCC Rules. Operation is subject to thefollowing two conditions: (1)This device may not causeharmful interference, and ( 2 ) This device must accept any interference received, including interference thatmay cause undesired operation.