This was the question i asked my self Last week when i misplaced / lost my car keys somewhere in my home but was not able to find it, then i was left with one key as a factor of safety i thought of making another spare key but one thing i came to know that my car(MANZA) comes with a factory fitted immobilizer that does not allow to start the engine with some ordinary cut key 
done at the locksmith but needs to buy a original key which contains blank transponder and chip from the tata motors and get it programmed to start engine
After searching on the net i found that the transponder keys cost about 20$ in avg and dealer charges 50 - 100$ to program the key, i thought i was very much screwed up and have to shell out 100+ dollars.
I went to Concorde motors and explained about misplaced key they said i have to buy a transponder key from them and program it if i wanted a spare, so i went to the Concorde spare department and purchased it, the Blank transponder key was around 8$, when i asked the dealer about programming the key, dealer said i have to bring the car and get the key cut myself at local locksmith.
I went to home i got transponder key cut at local locksmith i inserted the key and when i turned on i could see all the system getting powered on but a danger sign still blinking on console when i tried to start the car the car cranked but i was not able to start the engine, though i saw lot of videos on net on how to program the key ourselves none of them worked since most of time it requires
1. Two original key to program a spare key
2. A key cloner kit to make duplicate
3. Most importantly each cars have its own Immobilizer EMC learning sequence.
Since i did not had the luxury about any of the above i took my car to the dealer praying he will not charge more as discussed in the internet forums.
I went to Concorde motors they booked my car under quick service request and the representative told me that manza is equipped with latest immobilizer kit and the key can be programmed only by the authorized dealer with some special kit given by TATA MOTORS and he said they will charge for it, he took my car to the garage i could see everything from visitor lobby as garage was open to view, they bought a small computer kit connected it to my car and did something after 20mins they bought my car out.
To my relief the rep said the old misplaced key is removed from CAR EMC and deactivated it will no longer work and i need not pay anything for programming it is free :) Thanks to Concorde motors for free service i was really surprised atlast i got my new key programmed while deactivating my lost key under 8$ So guys if your car has immobilizer be careful because getting a spare key can cost you 50+ dollars.
below is the video on how to program transponder key yourself some car manufacturers allow it to do yourself if you have two sets of original keys
And also never get your transponder key get cloned at local locksmith because there's a high chances of old key still active and can be used by unauthorized person or theif only authorized dealer can reprogram keys and EMC of your and deactivate your old key third party locksmith can just clone a key for you but cannot deactivate old key or change EMC program in your car to new code.
3 comments:
thanks, your explanation help alot bcause i also lost my car's spare key and im afraid the lost key would be used by thief or someone that find it, but now i know what should be done..
what if you only have one original key? will it work?
Not entirely true. A locksmith can also erase any old lost keys. And on some vehicles if find the old key, the locksmith can also program it back into the vehicle.
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