Chevrolet Silverado 1500 2014 — technical service bulletin
Bulletin 13451 · NHTSA communication 10246820 · issued May 1, 2014
Technical service bulletin
communication type
Electrical System
component
2014
model years
2
vehicle entries
Official summary
Service Update for Inventory and Customer Vehicles Human Machine Interface (HMI) Module Softlware Update Expries with Base Warranty. Equipped with Base Radio (IO4) and Located in Middle East
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.