2007 Chrysler Aspen Owner's Manual - Page 16

16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE If the Vehicle Security Alarm Indicator Light turns on during normal vehicle operation (vehicle running for longer than 10 seconds), it indicates that there is a fault in the electronics. Should this occur, have the vehicle serviced as soon as possible. Replacement Keys NOTE: Only keys that have been programmed to the vehicle electronics can be used to start the vehicle. Once a Sentry Key has been programmed to a vehicle, it cannot be programmed to any other vehicle. At the time of purchase, the original owner is provided with a four digit PIN. This number is required for dealer replacement of keys. Duplication of keys may be performed at an authorized dealer or by using the Customer Key Programming procedure. This procedure consists of programming a blank key to the vehicle electronics. A blank key is one which has never been programmed and needs to be cut. NOTE: When having the Sentry Key System serviced, bring all vehicle keys to the dealer. Customer Key Programming You can program new keys to the system if you have two valid keys by doing the following: 1. Cut the additional Sentry Key Transponder blank(s) to match the ignition switch lock cylinder key code. 2. Insert the first valid key into the ignition switch and turn the ignition switch ON for at least 3 seconds but no longer than 15 seconds. Turn the ignition switch OFF and remove the first key. 3. Insert the second valid key and turn the ignition switch ON within 15 seconds. After ten seconds a chime will sound and the Vehicle Theft Alarm Indicator Light will begin to flash. Turn the ignition switch OFF and remove the second key.