1993 Cadillac DeVille Owner's Manual - Page 79

Should interference to this system occur, try this: 0 Check to determine if battery replacement is necessary. See the instructions on battery replacement. 0 Check the distance. You may be too farfrom your vehicle. This product has a maximum range. Check the location. Other vehicles or objects may be blocking the signal. See your Cadillac dealer or a qualified technician for service. 0 Changes or modifications to this system by other than an authorized service facility could void authorization to use this equipment. Operation The driver's door will unlock automatically when "UNLOCK" is pressed. If "UNLOCK" is pressed twice, all doors will unlock. All doors will lock when "DOOR" is pressed. The trunk will unlock when the opened trunk symbol ispressed. The Keyless Entry System allowsa transmitter to matched to as many be different vehicles as you own withthis system. Each vehicle can have only two transmitters matched to it. The transmitter will arm the Theft Deterrent System whenever the doors are closed and you push the DOOR button. Itwill disarm the system when you push the UNLOCK button. If your Cadillac is equipped with the Illuminated Entry System, you can make it work by pushing any button on the transmitter. The lights will stay on for20 seconds. Matching Transmitter(s) To Your Vehicle Each key chain transmitter is coded to prevent another transmittermom unlocking your vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer. Remember to bring the remaining transmitter with you when yougo to your dealer. When the dealer matches the replacement transmitter toyour vehicle, the remaining transmitter must also be matched. Once thenew transmitter is coded, the lost transmitter will not unlock your vehicle.