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Cadillac Key Replacement Houston Texas

- car lock smith Welcome to OkeyDoKeyLocksmith! Did you lost or broken the key to your Cadillac? Do you wish to duplicate side winder, proximity key or transponder key? Searching for a convenience and modest key replacement service?

Great news

Okey DoKey Locksmith offer 24/7 fast and affordable Cadillac replacement key. Call (832)408-0006 for immediate assistance, free estimate and scheduling. Our expert mobile car locksmith come to you to copy or replace your lost keys on-site.

Furthermore, we can solve all your Cadillac ignition, key and locks difficulties.

Does Cadillac use transponder keys?

Cadillac VATS keys

In 1987 GM introduced the VATS key-lock on the Cadillac Allante. The VATS technology used on the following Cadillac models:

  • Cadillac Allante 1987-1993
  • Cadillac Concours 1994-1996
  • Cadillac Deville 1990-1999
  • Cadillac Fleetwood 1993-1995
  • Cadillac Eldorado 1989-2003
  • Cadillac Seville 1989-1997


In 1997, Cadillac started to use PASSkey technology on the Cadillac Escalade 1998. Most Cadillac OEM keys stamped with a PK or PK2. The technology were slowly adopted on other models and the PASSKey II systems followed shortly.


transponder keys In 1997, Cadillac started to use PASSkey 3 transponder technology on the Cadillac Catera. The PASSKey 3+ systems followed shortly and today, Cadillac uses it on most models. The technology were slowly adopted on other models. Most Cadillac OEM keys stamped with a PK3, PK3+ or just a "+".

Cadillac smart keys

From 2007 few Cadillac models adopt the Passive Entry Passive Start (PEPS) with push-button start ignition. The keyless entry devbice contain a transponder chip and is an optional feature on specific vehicle.

Why does Cadillac use transponder keys?

car anti-theft Cadillac transponder keys used mainly as an anti-theft technology. The immobilizer configured to accept each unique programmed key by a code. When a key with unmatched code turned in the ignition, the vehicle will not start.

How does Cadillac immobilizer works?

How does Cadillac VATS key works?

The VATS key uses a resistor pelet in key "shaft" and a Theft Deterrent Module to validates the key. There are only 15 different ressistances possible for the key. If the TDM recognize the resistance value, it will send a valid key signal to the PCM allowing it to start.

How does PASSKey works?

In Passkey system is actually not a transponder, but very similar to the VATS! The Theft Deterrent Module validates the resistance of the chip in the key. The PASSKey includes more that a 100 resistances.

In addition to the resistance check, PASSKey also use the PASSLock system as an extra safety feature. The PASSLock module and measures and record voltage data through a magnitude sensor placed on the ignition. It basicly check the proper key cut profile and determines if the cylinder is aligned. If the PASSLock recognize the key it will allow the car to start. This is effective when cylider is broken, damaged or picked usually by a thief trying to hotwire the vehicle.

How does PASSKey II works?

PassKey II works like the PassKey I, but the TDM is built into the BCM instead of the ignition. The BCM sends a digital start/no start signal to the PCM over the data bus. One more change from PASSKey I is that halting the engine done by the fuel system instead of the ignition.

How does PASSKey III works?

The Passlock III is actually the first transponder used by GM. The chip is located inside the plastic covering of the key and stamped "PK3" on the metal blade. The ignition lock cylinder contain an antenna that reads the transponder data and sends a it to the PCM. If the PCM recognize the code from the key, it will allow the engine to drive. Some higher end models use a key fob instead of metal blade.

Later version of the PK3 called PK3+ or + have the same infrastructure and fuctionality as the PK3 system. The only difference is that the PK3+ use an encrypted transponder and requires dedicated programmers.

Can you program a transponder key yourself?

VATS/PASSKEY I/II duplication requires special VATS reader and is possible and not recommended as a DIY project. For more information read here about VATS keys.

Cadillac uses a simple on-board procedure to add keys for the PASSKey III vehicles using one already programmed key. First you need to have a blank key or buy cut key online. Once you have the key in hand, follow to following instruction to program a dublicate key yourself.

How do I know if my Cadillac has a transponder key?

Following are the list of Cadillac models that use transponders:

  • Cadillac DTS 2006+
  • Cadillac XLR 2005-11
  • Cadillac SRX 2004+
  • Cadillac CTS 2003+
  • Cadillac Seville 1998-04
  • Cadillac STS 2005-11
  • Cadillac Escalade 2007+
  • Cadillac ELR 2014+
  • Cadillac Deville 2000-05
  • Cadillac Catera 1997-01

Duplicate Cadillac keys

Cadillac key duplication on-board

duplicate Cadillac keys and remotes Cadillac use a very simple technique to duplicate PK keys. All you need is one existing programmed key and a new blank transponder key and follow the instruction below:

  1. Get a blank key online or at the dealer.
  2. Go to a local hardware store and cut the key. (You can also avoid the two first step by ordering a cut key online service).
  3. Insert an existing functional key into the ignition key-hole and turn it until a lock symbol appears on the dashboard.
  4. Once the lock symbol turns off, pull the first key out.
  5. Insert the second un-programmed key.
  6. Wait for the lock symbol on the dashboard to go on and off.
  7. The second key is now program.

Cadillac key made by VIN

Using the VIN and proof of ownership, a locksmith or the dealer can duplicate a new key.

Cadillac key cloning

There is also a way to clone the key chip value to a blank read/write chip key. This usually done by a locksmith or the dealer using a dedicated programmers and tools.

Lost Cadillac keys

Lost metal key blade

lost key madeIf you lost all your keys to a Cadillac that made before 1990, your key has no chip. All you need to do is to go to the dealer or to a locksmith store with the VIN and cut a new key.

This process is quite simple and should cost less than a 100$ in most cases.

One exception to the above is if the ignition changed and is not in sync with the VIN. In this case a locksmith need to replace the ignition again or to make a new key. This done by reading the key grooves inside the ignition cylinder. This process is more complex and requires a locksmith with the right machine and experience.

Lost Cadillac VATS key

If you Cadillac made between 1990 to 1997, your key might be a VATS.

When losing all VATS keys, a new key has to sync with the resistance of the TDM on the lock cylinder. This means that the car towed to the dealership or to use the service of a mobile locksmith who will come out to the site of where the car is at.

Lost Cadillac transponder key

If you Cadillac made after 1997, your key probably uses a PASSKey III transponder chip. When losing all the keys to an transponder immobilized Cadillac, the ECU reprogrammed to accept a new key. For this, the car towed to the dealership or to use the service of a mobile locksmith who will come out to you.

My Cadillac ignition key wont turn! What to do?

ignition repair There are many reasons for ignition problems! Please check our article about ignition repair and replacement.

How much is a replacement Cadillac key?

Service Price
Car Lockout $60-$120
Locked keys in trunk $60-$190
Door lock rekey/repair/change $160-$280
Lost key replacement $120-$200
Duplicate car key $100-$180
Remote/Flip keys $200-$300
Keyless entry device $220-$320
Ignition repair $110-$180
Key extraction $80-$130
Ignition replacement $160-$280
ECU re-flash $225-$285

* Estimates above includes the technician coming out to you the parts and the labor.

Final price depends on:

  • The state of the lock and the computer in the vehicle.
  • The type of equipment that the technician need to use.
  • The type of key that you would like to have.
  • The chip configuration.

The tech will diagnose the vehicle and provide a price for you to approve before doing anything.

How long does it takes to make a key?

24/7 Cadillac locksmith service Our emergency mobile vehicle lock smith are on call twenty-four hour 7 day a week 365 day a year. Ready to handle all your Cadillac keys and locks burdens. We usually arrive at customer location fast.

Our truck is completely armed with most advance cutting, diagnostic and programming machinery able to restore keys onsite. A key replacement process for a vehicle usually done same day.

We take pride in presenting a budget cost and reliable services. Give us a call at (832)408-0006 for a FREE ESTIMATE and our Cadillac expert will arrive to your place ASAP. Okey DoKey Locksmith is always here to meet your needs in a professional way.


  2. wikipedia - Passive Entry Passive Start (PEPS)
  3. Cadillac Forum - Discussion forums for Cadillac lovers. Get together to discuss anything related to Cadillac automobiles.
  4. edmunds - American online resource for automotive information.

Related articles/services

  1. Car key replacement
  2. Ignition repair
  3. Car lockout

Cadillac Key Replacement Houston Texas Okey DoKey Locksmith

Cadillac Key Replacement Houston Texas Okey DoKey Locksmith

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