Hyundai Elantra 2020 — technical service bulletin
Bulletin 20-FL-004H · NHTSA communication 10176198 · issued May 29, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
4
vehicle entries
Official summary
This bulletin describes the Idle Stop and Go (ISG) system operation, diagnostic and battery sensor recalibration procedure. Refer to applicable Shop Manual and Ownerâ s Manual for additional information.
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.