Jeep Compass 2017–2018 — technical service bulletin
Bulletin 0801022 · NHTSA communication 10222982 · issued Jan 15, 2022
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
2
vehicle entries
Official summary
Flash: Drivetrain Control Module (DTCM) Updates This bulletin involves reprogramming the DTCM with the latest available software. The customer may describe one or more of the following: Noise while disconnecting the 4WD at speeds around 56 kph (35 mph). A hum, chatter or growl noise heard intermittently at speeds approximately between 48-72 kph (30-45 mph). Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) is active or stored:C2502-64 - Status ECM Tcfailsts Or Transm2 Transmissionfailsts Or Brake8 Dstfailsts Or Brake8 Escfailsts Or Status ECM E
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.