2007 Chrysler Aspen Owner's Manual - Page 24

24 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 7. When a single chime is heard release both buttons. The chime is an indication that you have successfully entered program mode. All fobs that are to be programmed must be done so within 60 seconds of when the chime was heard. 8. Using the fob to be programmed, press and release both the LOCK and UNLOCK buttons, simultaneously. 9. A single chime will be heard. 10. Within four seconds of hearing the chime, press and release the UNLOCK button on the fob. 11. A single chime will be heard. 12. Repeat steps 8 through 10 to program up to six additional fobs. 13. Turn the ignition to the OFF position. 14. Your vehicle will remain in program mode up to 60 seconds from when the original chime was heard. After 60 seconds, all programmed fobs function normally. NOTE: If you do not have a programmed transmitter, contact your dealer for details. Battery Replacement The recommended replacement battery is CR2032. 1. If the key fob is equipped with a screw, remove the screw. With the transmitter buttons facing down, use a flat blade to pry the two halves of the transmitter apart. Make sure not to damage the elastomer seal during removal.