Ford Explorer 2020 — technical service bulletin
Bulletin 20B34-S1 · NHTSA communication 10185994 · issued Jan 21, 2021
Technical service bulletin
communication type
Power Train
component
2020
model years
1
vehicle entries
Official summary
In some of the affected vehicles, a leak in the transmission oil cooler may occur due to a crack developing near the oil cooler line fittings. Loss of transmission fluid could lead to transmission noise, harsh shifts or the inability to shift out of park.
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.