Ford Ranger 2021 — technical service bulletin
Bulletin SSM 49727 · NHTSA communication 10191090 · issued Apr 8, 2021
Technical service bulletin
communication type
Electrical System
component
2021
model years
1
vehicle entries
Official summary
Some 2021 Ranger vehicles built on 15-Jan-2021 and through 26-Feb-2021 may experience an illuminated traction control fault indicator in the instrument cluster (IC) with diagnostic trouble codes (DTC) C0037 and/or C003A setting in the anti-lock brake (ABS) module. This may be due to an improperly seated rear wheel speed sensor. Inspect the rear wheel speed sensor to make sure it is sitting flat against the mating surface of the rear axle. If the condition persists, continue with normal Workshop Manual diagnostics located in Section 206-09.
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.