Jeep Gladiator 2021 — technical service bulletin
Bulletin 18-042-22 REV. D · NHTSA communication 10229785 · issued Dec 1, 2022
Technical service bulletin
communication type
Electrical System
component
2021
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 furtherinvestigation the technician may find one or more of the following DTCs: P0300 - Multiple Cylinder Misfire. P152E - Engine Hood Switch 2 Circuit High. P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. P0032 - O2 Sensor 1/1 Heater Circuit High. P0038 - O2 Sensor 1/2 Heater Circuit High. P0052 - O2 Sensor 2/1 Heater Circuit High. P0058 - O2 Sensor 2/2 Heater Circuit High
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.