Transmitter Synchronization
WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
- Synchronization may be necessary due to the security method used by the remote keyless entry system.
- The transmitter does not send the same signal twice to the remote control door lock receiver (RCDLR).
- The RCDLR will not respond to a signal that has been sent previously.
- This prevents anyone from recording and playing back the signal from the transmitter.
- Synchronization may be necessary under the following conditions:
- The battery in the transmitter is very weak.
- The battery in the transmitter was replaced.
- The battery in the vehicle has been in a low or no charge condition for an extended period of time.
In order to synchronize the transmitter with the RCDLR, perform the following steps:
- Stand within 1.5 m (5 ft) from the vehicle.
- Simultaneously press and hold the LOCK and UNLOCK buttons on the transmitter for 7 seconds.
The horn should chirp in order to confirm synchronization.