I am sure you found many instructions sequences posted many many years ago that could be relevant today. I will re-post these proven to work instructions as the original poster has long since left the community for some other brand, as there are others who are getting their X5 for the first time as the 4th or 5th owners.
Key Programming Instructions
Remember...you will need to have BOTH remote keys with you when you program the new key. Any remote key NOT reinitialized during the same session will NOT communicate with the GM...and will not lock/unlock & arm/disarm the car using the remote buttons.
Each programming session assigns a specific key code and new rolling code table to the keys...so any remote key NOT present will not have the update...thus will not work remotely.
Here's the programming instructions just in case you need them...plus some tips that some fail to follow...thus fail to initialize their remotes:
KL R = ignition position 1 (1st click after the OFF position...not position 2 or with engine running)
All doors must be closed
All doors must be unlocked
Only insert the 1st key into the ignition...after STEP 6...start programming the 2nd remote on STEP 3 where you start pressing the buttons
Remember...you will need to have BOTH remote keys with you when you program the new key. Any remote key NOT reinitialized during the same session will NOT communicate with the GM...and will not lock/unlock & arm/disarm the car using the remote buttons.
Each programming session assigns a specific key code and new rolling code table to the keys...so any remote key NOT present will not have the update...thus will not work remotely.
Here's the programming instructions just in case you need them...plus some tips that some fail to follow...thus fail to initialize their remotes:
KL R = ignition position 1 (1st click after the OFF position...not position 2 or with engine running)
All doors must be closed
All doors must be unlocked
Only insert the 1st key into the ignition...after STEP 6...start programming the 2nd remote on STEP 3 where you start pressing the buttons.
Good luck!
__________________
2005 X5 4.8IS
The
Blue ones are always FASTER....
Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green