Need Cadillac CTS 2006 remote programming info

link is for key even though it states fob also https://www.youcanic.com/wiki/program-cadillac-key-fob-remote

I have the same car. Check your battery state if charge. 2nd Re lock the car with the fob . Let the car sit for 10 minutes and re open with the fob and start the car. Either a battery problem or the anti theft was set. Please let me know what happened.

check links to see how to program fob.
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2004 2006 Pontiac GTO Key FOB Remote Transmitter Programming Instructions

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwic3dXVvZnLAhWjlYMKHaUnDiUQFggeMAE&url=http%3A%2F%2Fwww.gtoforum.com%2Ff3%2Fkey-fob-transmitter-programming-18209%2F&usg=AFQjCNF6zzIUC4RbmBSDRNjuIuf1QYF4yQ

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwic3dXVvZnLAhWjlYMKHaUnDiUQFggsMAI&url=http%3A%2F%2Fwww.ls1gto.com%2Fforums%2Fshowthread.php%3Ft%3D9362&usg=AFQjCNH95RhnLkEVARUBHpLXHM9zTWLkuQ

There are several methods of doing this - but your 2003 requires that you either go to the dealer for them to add a FOB with special equipment (ask if they'll do it for free - can't hurt). If you have time to kill, you can do it yourself with Method 3 as described and found at:

Key Fob Reprogramming General Cadillac Forums

Method 3 - Key Fob Auto Learn


This procedure will first erase all known key fobs. The procedure will then program a single or multiple key fobs. Method 3 is a series of three 10-minute key cycles, for a total of 30 minutes. This procedure requires that you have a replacement key fob and the vehicle mechanical key.

Important: All previously programmed key fobs will be erased upon completion of the 30-minute programming procedure. The order in which the key fobs are programmed will determine its numbering position within the RCDLR memory. The first key fob programmed will be key fob #1, and the second key fob programmed will be key fob #2. The number stamped on the key fob case is for reference only: #2 can be programmed as #1.
Do not place any known good key fobs in the vicinity of the vehicle when programming with Method 3. If the RCDLR recognizes a known good key fob during Method 3 programming, the programming mode will resort to Method 1.


The vehicle must be OFF.
Place the replacement key fob in the console pocket with the buttons facing forward.
Insert the vehicle key in the driver door lock cylinder located in the driver door handle and cycle the key 5 times within 5 seconds.
The DIC will display a message: OFF/ACC TO LEARN.
Press the OFF/ACC portion of the ignition button.
The DIC will display a message: WAIT 10 MINUTES, then it will count down from 10 to 0, one minute at a time.
When the counter reaches 0, DIC will display OFF/ACC TO LEARN.
Repeat steps 5-7 two more times, for a total of 30 minutes.
The DIC will display a message: OFF/ACC TO LEARN.
Press the OFF/ACC portion of the ignition button.
A beep will occur and the DIC will display: READY FOR FOB 1. At this time all previously known key fobs have been erased. When fob 1 is programmed a beep will be heard and the DIC will display a message: READY FOR FOB 2.
Additional key fobs can be programmed by taking fob 1 out of the pocket and inserting fob 2. If desired, up to 4 fobs can be programmed. Once 4 fobs have been learned, the DIC will display a message: MAX FOBS LEARNED, and automatically exit the program mode.
If learning less than 4 key fobs, press the OFF/ACC portion of the ignition button to exit the program mode.
Operate the active portion of each key fob in order to finalize the programming sequence and verify correct system operation.

Good luck!

Unfortunately, the website I found says there is no on-board method of programming your car for a new key-fob. You have to take the car to a dealer or to a key-maker (who may only charge half as much as the dealer)

Key Fob Remote Programming Instructions 2001 Cadillac Deville Key Fob...

Take it to a Cadillac dealer. The dealer uses a Tech II (computer) to reprogram your car to recognize the new key fob.

Remote Key FOB Information
Transmitter Programming
 1. Close all the vehicle doors.
   2. Insert the ignition key into the ignition lock cylinder.
   3. Press and hold the door unlock switch.
   4. While holding the door lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.
   5. Release the door unlock switch. The doors will lock and unlock to confirm the program mode.
   6. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter.
   7. Repeat the previous step to program up to 4 transmitters.
   8. Turn the ignition switch to the RUN position in order to exit the keyless entry transmitter programming mode.
   9. Operate the transmitter functions in order to verify correct system operatio

you need to take it to your chevy dealer so they can get the key code from gm online and the can program it in their shop. call GENERAL TRUCK SALES 800-382-7717

The dealers know about a problem with the batteries and will replace under warranty. The original batteries were defective. I just bought a 2006 CTS and after test driving the car the battery died and wouldnt restart. The dealer replaced the battery. You should not have to pay a dime.