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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 545 (Keyless Entry System) >> Repair Instructions >> Transmitter Programming >> Synchronizing Transmitters

Synchronizing Transmitters

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WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Preform the following procedure if a transmitter cannot communicate or becomes out of synchronization with the receiver:

  1. Move a programmed transmitter within range.
  2. Press the LOCK and UNLOCK buttons on the transmitter simultaneously for 7 seconds.
  3. The horn will chirp once when the transmitter is synchronized. Repeat this procedure for each additional transmitter if needed.