Maybe your keyfob needs a new battery as well
SOURCE: 2003 Jaguar S-Type, programming a key fob
The switchblade key would need to be compatable with your ignition switch barrel. Only normally available from jag dealers who check the Jag owners register before supplying you a replacement.
The older type seperate fobs could be programmed by switching the ignition on and off 8 times (allowing all functions to settle) and on the 9th switch on - press a button on each fob and then switch off. to test use a good fob to lock the car then try the reprogammed fob to unlock/lock. Sometimes this works first time - sometimes needs a couple of tries.
SOURCE: reprogramming jaguar x type key fob
Your key FOB is easily programmed by yourself without the need of computer, here is how: Push and hold the trip computer button on the left stalk, while holding the button turn the ignition ON and OFF several times untill you hear a confirmation tone from the glovebox area, when the tone is heard, release the button and remove the key from the ignition, immediately after push any button on the Key FOB and you'll hear another tone that confirms the programming.
SOURCE: How do I program S Type Jaguar key fob Year 2000 Jag ?
Seperate key fobs only can be programmed in the following way.
Turn ignition on/off 8 x times (allow all functions to stabilise) after the 9th on - press a button on both remote fobs. then turn ign. off. use good remote to lock and then try new remote to unlock/lock. sometimes it works first time - sometimes you have to repeat actions. good luck.
SOURCE: Key fob won't work on my 2003 jaguar s type car
Try this .. it MIGHT work.
Clean carefully the battery contacts and check there is no large build up of dirt around and on the small printed circuit. Insert new battery and then try a manual reprogram by following these instructions which work for the older style seperate key fobs - never tried it with new switchblade type keys, which I am assuming this is?
Turn on/off ignition 8 x times allowing all functions to settle each time. on the 9th on press a buttom on each remote and then switch off ign. Use the good key to lock the car then try the new key to unlock. sometimes it works first time - sometimes it takes a couple of tries - hope it works for you.
SOURCE: remote key fob stopped working not battery
try reprogramming.process widely available on these sites. 're-programming x-type key fobs'
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first thing i did
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