Chevrolet Malibu 2016–2018 — technical service bulletin
Bulletin 18NA186 · NHTSA communication 10166648 · issued Sep 17, 2019
Technical service bulletin
communication type
Electrical System
component
2016–2018
model years
6
vehicle entries
Official summary
This Bulletin provides information to diagnose a Loss of Propulsion or No Start with the MIL ON and DTC P0A3F or P1B03 set.
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.