I has a jaguar xf 2015 AWD and its all working fine till yesterday night when i came home from work and When i try to unlock the car in the morning. Car key nor working only the light button is working on the key. and when i get inside the car to turn it on . it saying key fob not found and try replacing the key fob. After this I even has replace key key batteries to new one but still jot working.

 

Do you have a spare key to try it on? You can still start the car by putting the Key Fob on the rib section of the left side steering column.

 

Yes I already tried with spare key and putting the keys near the steering wheel column. Still no change

 

I didn't noticed your Jag is a 2015 model. There are 2 models from 2015
Which one is your XF?

If your XF looked like on the first picture, this is an XF 250 Repost your original post to this forum and the members there will help you: https://www.jaguarforums.com/forum/xf-xfr-x250-44/


If your XF is the same as pictured below, then it is an XF 260. Try to reboot the system by disconnecting the negative/ground cable of the battery. Wait for 5 minutes and reconnect the negative/ground cable. Make sure both + and - cables are bolted tight. Now, press the lock and unlock botton on the fey fob. Do this twice. Does the car respond to the command? How old is the car's battery? Current voltage? Press the horn, is it loud or you hear just a click or one horn only ( XF have dual horns)?