gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Manual Transmission - NV 3500|Page 16442 > < Diagram Information and Instructions|Page 16439
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Backup Lamp Switch: Service and Repair
Manual Transmission - NV 3500

Removal Procedure 

1. Raise the vehicle. Refer to Vehicle Lifting.
2. Disconnect the backup lamp switch electrical connector.
3. Remove the backup lamp switch.

Installation Procedure 

Notice:  Refer to Fastener Notice in Service Precautions.

1. Install the backup lamp switch.

The backup lamp switch has pre-applied thread sealant on the threads.
Tighten the backup lamp switch to 28 Nm (21 ft. lbs.). 

2. Connect the backup lamp switch electrical connector.
3. Lower the vehicle.

Manual Transmission - NV 3500|Page 16442 > < Diagram Information and Instructions|Page 16439