Hyundai Elantra 2019–2020 — technical service bulletin
Bulletin 21-01-004H · NHTSA communication 10188245 · issued Feb 11, 2021
Technical service bulletin
communication type
Exterior Lighting
component
2019–2020
model years
2
vehicle entries
Official summary
This bulletin describes the procedure to repair a headlamp that has an inoperable high beam function.
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.