I have the correct answer for you, but it is probably not what you want to hear. A 2001 Cadillac Deville has NO self-programming procedures for remotes. You can add transponder keys if you have the master key, otherwise you need to go to a professional to get them programmed because they need special equipment to communicate with the vehicle.
I would suggest a locksmith before the dealer as they are usually more affordable. We always recommend an ALOA (Associated Locksmiths of America) member, as their code of ethics means they will treat you fair.
I also suggest avoiding the dealer for the actual key fob remotes for your Cadillac Deville. My company sells factory OEM key fob replacements at a steep discount. Check this link to find your vehicle key fob. https://keylessentryremotefob.com/
SOURCE: programming a keyless entry remote
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.
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 and hope this help's keep me posted, there are 3 other methods and the 5th method is a tech 2 scan tool that the dealer uses but this should work on your year of cadillac.
SOURCE: program keyless entry remote 1998
Replaced digital dash on 1998 Cadillac DeVille. Receiving error message 'Starter disabled keyless remote' 'Wait 3 min.' After 3 min, car still doen't start.
SOURCE: How do you program a
you have to use a paper clip and bridge #4 and #8 terminals on the OBDII connector (then turn key on), then hold the lock/lulock buttons at the same time-the terminals are the top row, 4th and 8th(end) from the left side of the connector. Horn will beep 3 times when the code is learned by the new remote.
SOURCE: 1998 Cadillac Deville program keyless entry
Two possibilities here- 1. You have a remote that was previously programmed to the vehicle and it needs to be reactivated (this happens when you change the battery in the remote). In this case, simply stand behind the vehicle and hold lock and unlock down simultaneously and in about two seconds the horn will honk and you are set. 2. You have a remote that is either new, from another vehicle, or (possibly) has been dead so long it has "forgotten" the vehicle. In this case your only option seems to be a trip to the dealer where you will pay approx. $50 for them to hook it up to their computer and program it.
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