Hyundai Elantra 2017–2018 — technical service bulletin
Bulletin 5NP-R9D7V-01 · NHTSA communication 10152865 · issued Dec 17, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2018
model years
2
vehicle entries
Official summary
This bulletin provides information on certain 2017-2018 model year Elantra (AD/ADA) 2.0L vehicles to update the ECM (Engine Control Module), update the HVAC ECU, and to update the engine coolant temperature gauge of the Instrument Cluster for improving heater performance.
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.