1998+ Cadillac
Remote Keyless Entry System (RKE)

You will need a Tech-2 Scan Tool to re-program the keyless entry system. The procedure listed below is for the 1999 Seville, but should be very similar to the other models.

When re-programming, it is always a good idea to replace the batteries in the RKE key fob.

IMPORTANT
The order that the transmitters are programmed is important, the first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. You can program up to four transmitters. Additional transmitters are available that do not have a number on them. Any previously programmed transmitters which were not included in the programming will no longer function with this receiver. The number on the transmitters are for reference only, #2 can be programmed as #1 or vice versa. Use care to program the transmitters correctly.

1. Connect a scan tool.
2. Select diagnostics.
3. Select body code.
4. Select body style code.
5. Select other.
6. Select RFA.
7. Select special functions.
8. Select F0 program key fobs.
9. Choose the fob number that you wish to program.
10. Follow screen prompts to complete programming procedure.
11. Press and hold the lock and unlock buttons on the transmitter being programmed, the door locks will cycle. This should take about 15 seconds.
12. Continue on to the next transmitter and repeat until all of the transmitters are complete.
13. Exit the RKE programming and disconnect the scan tool.
14. Cycle the ignition and test the transmitters for proper operation.

The transmitters can be customized to have the following actions take place when a certain transmitter is used:

• P/R (perimeter) lighting on at remote unlock
• P (park) lamps on at remote unlock
• P (park) lamps on at remote lock
• Horn sounds on remote lock

To program the personalization features use the following procedure:

1. Connect scan tool.
2. Select diagnostics.
3. Select body.
4. Select body code.
5. Select body style code.
6. Select other.
7. Select personalization.
8. Select driver information.
9. Choose driver.
10. Select driver number key fob options.
11. Change functions to active or inactive as desired.
12. Save options and exit system.

To synchronize transmitters after battery replacement, press and hold LOCK and UNLOCK buttons simultaneously. Lights will flash and horn will cycle, then synchronization will be complete.

If you suspect the key fob itself isn’t working, the dealership's parts department has a device that will check to see if it is indeed functioning properly - if you have a frequency counter you can check it as well, to see if it is indeed transmitting - output is in the 318-320 MHz range. The couple that I've check have been 318.989 & 319.076 MHz - note that no matter which button you press (light, unlock, lock, trunk open, etc.) the transmit frequency does not change.

If they're still not working (after installing fresh batteries) and you feel like messing around with it a little, take the key fob totally apart and clean the contact points behind the rubber membrane and the brass etchings on printed-circuit (PC) board - this may be just enough to bring it back to life! Moisture intrusion and the resulting corrosion on the contacts is usually the culprit in a lot of "not working" situations.

RKE Key Fobs (remotes) part numbers. FYI - Most dealerships keep an assortment of these in stock, as they are a fairly common and inexpensive replacement item.

The #1 and #2 remotes look identical - the only difference is the number on the back, which determines the order that they are programmed.

The Official eGroups Cadillac Owners mailing list is an automatically maintained email mailing list and archive dedicated to the distribution of general information, questions, inquiries about new Cadillac Motor Cars and related topics. Here you'll find owner comments and critiques, articles showing how owners maximize performance, stories of unique owner experiences and news of accessories, recalls, service bulletins, links to other valuable websites and other important information. Whether you presently own a Cadillac or are looking to purchase one this list is for you!

Alternatively, you can send a blank email message to cadillacowners-subscribe@egroups.com

Consider this mailing list a real-time supplement to the Cadillac Vision Magazine every new Cadillac owner receives.

Please note that this document is provided for information purposes only: there is no warranty expressed or implied about what they will do to your car, factory warranty, performance, or value of your car. Use them at your own risk.

I have tried to format the information into more of a "how-to" type guide. My apologies for any errors I introduced in this process.