Transmitter Synchronization

1999 Chevrolet Lumina V6-3.8L VIN KSECTION Transmitter Synchronization
Perform this procedure when the following conditions exist:
^ A keyless entry transmitter is malfunctioning
^ Before programming a keyless entry transmitter
^ After replacing the batteries on the keyless entry transmitter.

Press and hold the UNLOCK button and the LOCK button simultaneously for 7 seconds in order to resynchronize the transmitter.

If the keyless entry transmitter is desynchronized within range of the vehicle, the door locks will cycle. This action indicates that the resynchronization was successful.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.