Chevrolet Sonic 2013 — technical service bulletin
Bulletin 13128C · NHTSA communication 10246735 · issued Oct 1, 2013
Technical service bulletin
communication type
Equipment
component
2013
model years
3
vehicle entries
Official summary
Service Update for Inventory and Customer Vehicles Software Enhancement Update Expires with Base Warranty. Equipped with MyLink Radio (UF7)
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.