Ford Expedition 2018–2021 — technical service bulletin
Bulletin SSM 49724 · NHTSA communication 10191067 · issued Apr 7, 2021
Technical service bulletin
communication type
Power Train
component
2018–2021
model years
8
vehicle entries
Official summary
Some 2018-2021 Expedition/Navigator vehicles equipped with electronic limited slip differential (ELSD) rear axle may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P0932:17. Check the condition of the wiring harness and connections at the ELSD and the differential control module rear (DCMR). If no problems are found, clear the DTC and test drive. If the condition returns, refer to Workshop Manual (WSM), Section 308-07A.
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.