Jeep Cherokee 2017 — technical service bulletin
Bulletin 1806620 · NHTSA communication 10221885 · issued Aug 25, 2020
Technical service bulletin
communication type
Electrical System
component
2017
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following DTCs have been set:P1D83 - Implausible Engine Oil Temperature Signal Received. P0556 - Brake Booster Pressure Sensor Circuit Performance. U0428 - Implausible Data Received From Steering Angle Sensor Module. U1504 - Implausible Message Data Length Received From Steering Angle Sensor. C0501 - L
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.