Lincoln Navigator 2021 — technical service bulletin
Bulletin 21B47 · NHTSA communication 10201081 · issued Aug 19, 2021
Technical service bulletin
communication type
Power Train
component
2021
model years
1
vehicle entries
Official summary
In all of the affected vehicles, a one-speed transfer case was installed instead of the two-speed transfer case that was intended to be installed with the heavy duty trailer tow package. As a result, the Slow Climb drive mode and the Neutral Tow setting will not be available on the Instrument Panel Cluster (IPC) message center display. This will prohibit the vehicle from being flat-towed and may cause poor drivability in extreme off-road conditions.
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.