Lantra Immobiliser Queries

Hi, I have a year 2000 UK Lantra 1.6 GSI and need some spare keys cut.
Hyundai quoted me £85 for 1 key and need the car as well to reprogram
it. Does anyone know if this car has 'rolling' codes in the
transponder key? If not is there any reason why an existing working
key cannot just be cloned without the need to reprogram the car? In
what way is the blue 'identity' key different to the black 'master'
key?
Thanks for any help.

 

buy a "J"* immobilizer key from dealer, let it be cutted and then program it
by yourself as follows:
a) get blue key into steering lock.
b) thrust it 5 times rapidly from off to on (indicators on, not ignition!)
c) get every single black key into steering lock and thrust everyone 1 one
time from off to on - first key, off/on, out, second key off/on, etc.
d) check every key working (ignite engine, it should not stop within 5
seconds - if engine stops within 3/5 secs, it's not recognized and immo cuts
fuel supply).

this - hope it's clear! - is standard procedure without hyundai scanner to
let system recognize keys.
check if your system has "J" key - J letter should be written in metal part
of key, while M letter stays on plastic grip.

the blue key is different from other keys because it's the first key
recognized from immobilizer system in the factory. it's the only one that
cannot
be deleted from system, while you can add up to 4 black keys.

ciao!
buzz

 

Wow ! Thanks 'buzz', thats really interesting.
Turning the ignition on/off (but not starting the car) five times with
the blue key must put the system into learning mode. This must be a
secret Hyundai don't want us to know about?
My keys do have the J on them, on the metal right next to the plastic
key handle.

Do you know if a key can be cloned by a locksmith; i.e. an exact copy
of a working black key including the transponder?

 

a.f.a.i.c. key cannot be cloned, but i never delt with such things.
i've seen sometimes some people try to take trasponder by cutting old grip
and put it close to a new / or passive key.
on the steering lock there's an antenna (part where off-garage-ig letters
are printed), and this antenna catches the code stored in trasponder.
there are no secrets about hyundai, this procedure is simply "unofficial"
but always working, even if with hyundai scan you cannot register keys!
it happened to me many years ago to replace an ICM (immo unit) and not being
able anymore to register any key but the existing blue one.....well
scanner did not help, but this "5 times" method did work!
your immo system is old, recently hyundai changed to an integrated immo
system and supplys only two sister keys, but old in this case means i.m.o.
better.
with new system it's impossible to record a key into system without scanner
and a special code, obtain from VIN with an algorithm.
regards, buzz

 

The transponder in the key cannot be changed. What you're doing is
teaching the car to recognize the keys you have.

 

I was not suggesting changing a standard transponder key, I was asking
if it were possible to copy the key. I have heard that you can get
'blank' transponder keys and then a locksmith can program them to
match a working key. This should work so long as the immobiliser does
not use rolling codes where the code stored in the transponder changes
everytime you turn off the engine. I assume the Lantra immobiliser
does not have rolling codes.

'Buzz' can you please clarify, does : 'b) thrust it 5 times rapidly
from off to on (indicators on, not ignition!) ' mean put the blue key
in the steering lock, turn it partly on to the first position but not
so that the the dashboard lights come on or does it mean turn it to
the second position where the lights do come on on the dashboard?
Should this be done as quickly as possible or just slow and steady? Is
there anything else to do after each black key to tell the system
there are no more keys?

 

"I was not suggesting changing a standard transponder key, I was asking
if it were possible to copy the key. I have heard that you can get
'blank' transponder keys and then a locksmith can program them to
match a working key."

The transponder in the key cannot be programmed. That was the point I was
trying to make. It's the vehicle that's programmed to read the keys.

 

yes, exactly.
the blue key has to be turned 5 times from OFF to ON means dashboard light
come on, without
igniting engine. It doesn't matter if you do it slowly or rapidly, do it
carefully.
Then put black keys one by one from OFF to ON as above, do not ignite.
When you completed with all black keys, try to ignite engine with every
single key.
As told before, engine should not turn off within 5 seconds, otherwise means
key is not recognized and
immo cuts petrol.
Good Luck! Ciao
Buzz

 

Thanks Buzz, thats great ! By the way, I am going to try a cloned key
as the local locksmith says he can copy my key including the
transponder. Will let you know how it goes and if it doesn't work,
I'll do what you suggest.

 

Update on Keys:

I had a local locksmith make up 2 keys. These had programmable
transponder chips in them so all he had to do was read my key and
program the information into the two new keys; job done. No need to
connect to the car at all. Cost £55 for the two which is £70 cheaper
than Hyundai quoted !
I also asked about programming the normal transponder keys into the
ECU using just the car alone as suggested by Buzz. Reluctantly the
locksmith admitted that this would work; I guess the industry doesn't
want too many people to know about this as they lose work if people
program in their own keys. (Hyundai wanted £45 to program a key to the
car using Hi-Scan but it seems so long as you have the Blue key, you
can do it yourself as per Buzz's instructions above).