Jeep Compass 2020 — technical service bulletin
Bulletin 18-041-21 · NHTSA communication 10194075 · issued Apr 29, 2021
Technical service bulletin
communication type
Fuel System, Gasoline
component
2020
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0563-00 - System Voltage High (M6 Vehicles only). P21CC-00 - Reductant Control Module Supply Voltage High (M6 Vehicles only). P20F6-00 - Reductant Injection Valve Stuck Open Bank 1 Unit 1. P208E-00 - Reductant Injector Stuck Closed - Bank 1 Unit 1. P24B2-00 - Particula
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.