For 1990-2009 cars only
Transmitter Synchronization for Cadillac Eldorado 1998
When transmitters are out of synchronization, all of the buttons except the fuel door release will be inoperative.
The following conditions are possible causes of a transmitter being out of synchronization:
| • | 256 button presses out of range of the vehicle |
| • | Replacing the transmitter battery |
| • | Performing the synchronizing procedure out of range of the vehicle |
- Press and hold the lock and unlock buttons simultaneously on the transmitter being synchronized for 7 seconds. All doors lock and then unlock in order to provide feedback that the synchronization is complete.
- Verify transmitter operation.
