The "real" master key has a small flashlight built into the fob. It activates when you push the Jaguar logo button. The battery/flashlight/button mechanism snaps out of the fob and can be replaced when the battery is dead. While the local dealership probably has these, are there any other sources? What is the part # ?

Bill & Gloria Bevan
1994 XJS Convertable, 4.0L

Submitted by fresnoeng@yahoo.com on Fri, 04/26/2013 - 20:23

Edited on 2013-04-26 20:39:28

Edited on 2013-04-26 20:28:19

Radio Shack carries the 625 battery for $5.99. Press the Jaguar rectangle on the back of the key, and the flashlight assembly will slide out. The assembly is pressed together. I pressed a small screwdriver on one of the black plastic triangular edges at the lightbulb end. The assembly slowly spread apart. It's easy to scrape up the housing. It's a pretty feeble light. May not be worth the trouble . . .