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Home >> GMC >> 1999 >> Envoy >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Remote Keyless Entry Systems >> Programming Procedures >> RESYNCHRONIZATION

Programming Procedures: RESYNCHRONIZATION

  1. Resynchronization may be necessary due to security methods used by Remote Keyless Entry (RKE) system. Transmitters do not send the same signal twice. Receiver control module will not respond to a signal it has been sent previously preventing recording and playback of transmitter signal. Resynchronization will be necessary if any of the following occur:
    • Transmitter battery is very weak.
    • Transmitter battery is changed.
    • Vehicle battery is very weak.
    • Vehicle battery is replaced.
    • Vehicle battery is disconnected.

To resynchronize transmitter to receiver control module, stand within 5 feet of vehicle and simultaneously depress and hold LOCK and UNLOCK buttons on transmitter for 7 seconds. Door locks should cycle to confirm resynchronization.