Ford Ranger 2021 — technical service bulletin
Bulletin TSB 21-2412 · NHTSA communication 10203657 · issued Nov 22, 2021
Technical service bulletin
communication type
Equipment
component
2021
model years
1
vehicle entries
Official summary
Some 2021 Ranger vehicles equipped with four-wheel drive and built on 06-Apr-2021 and through 26-Jul-2021 may experience a controller area network (CAN) communication issue that will set one or more communication fault diagnostic trouble codes (DTC). This may be due to an internal hardware fault within the all terrain control module (ATCM)/mode select switch (MSS).
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.