Dodge Durango 2018–2019 — technical service bulletin
Bulletin 9004203 · NHTSA communication 10173267 · issued Feb 5, 2020
Technical service bulletin
communication type
Trailer Hitches
component
2018–2019
model years
4
vehicle entries
Official summary
WK/WD Mopar trailer tow lighting accessory kit Wire pin out diagram in step 44 of installation instructions is incorrect, follow pin outs description (Cavity 29 WH/GN wire, Cavity 33 WH/DG wire)
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.