GMC Workshop Service and Repair Manuals > Sierra 1500 4WD V8-5.3L VIN B HO (2006) > Lighting and Horns | Sensors and Switches - Lighting and Horns | Backup Lamp Switch | Component Information | Service and Repair | NV 3500 - Manual Transmission

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3. Connect the backup lamp switch electrical connector (1).
4. Lower the vehicle.

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