Hyundai Sonata 2011–2014 — technical service bulletin
Bulletin 5NP-B3Q3X-07 · NHTSA communication 10115697 · issued Jun 7, 2017
Technical service bulletin
communication type
Equipment
component
2011–2014
model years
4
vehicle entries
Official summary
This bulletin provides additional service procedures to assist the diagnosis of vehicles equipped with variable displacement A/C compressors that features an external control valve (ECV).
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.