Hyundai Tucson 2015–2017 — technical service bulletin
Bulletin 5NP-Q5T3B-05 · NHTSA communication 10138242 · issued Apr 25, 2018
Technical service bulletin
communication type
Electrical System
component
2015–2017
model years
3
vehicle entries
Official summary
This bulletin provides information related to the FCU (Fuel Cell Control Unit) software update for TUCSON FCEV (LM FCEV) vehicles. This update includes improvement for fuel cell stack durability and diagnosis condition.
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.