Service update

Bulletin number

15411

Component

Electrical system: wiring

Summary

15411 - service update. This bulletin provides a service procedure to install fuses and relays as required in the underhood electrical center (uec) on certain 2015 model year chevrolet silverado and gmc sierra vehicles equipped with an accessory-wiring-junction-block (rpo 9l7). These vehicles may have missing fuses and relays. The customer may notice that the auxiliary switches are inoperative after the function is added to the vehicle.

Owners of these vehicles have filed 261 complaints in the electrical category.