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Service bulletin 1804222

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10229156
Published by NHTSA2023-01-09
Manufacturer's number1804222
Manufacturer's date2022-03-19
NHTSA componentELECTRICAL SYSTEM; POWER TRAIN

NHTSA's 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 the following DTC: P0300 - Multiple Cylinder Misfire. In addition, customers may experience the following concern: Spark knock/detonation sound from the engine at idle.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Transmission and driveline

Trouble codes named

P0300

Vehicles listed
JEEP GLADIATOR2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
24V6520002024-09-05. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
24V5720002024-08-01. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE
20230892023-02-23. Powertrain
23V1160002023-02-23. POWER TRAIN:CLUTCH ASSEMBLY
20210352021-01-28. Powertrain
21V0280002021-01-28. POWER TRAIN:CLUTCH ASSEMBLY

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
S26210000042026-10-07. Service bulletin. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only)
91009002026-09-17. Service bulletin. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
16C Combo Rev32026-08-13. Warranty extension. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL and cargo lamp indicator function are swapped. (JL) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non-compliant to the OBD II regulation.
1128622026-07-02. Service bulletin. MOTOR - BLOWER WITH WHEEL
1128632026-07-02. Service bulletin. MOTOR - BLOWER WITH WHEEL
91008352026-06-18. Service bulletin. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
S26230000402026-06-16. Service bulletin. Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock.
1117602026-06-16. Service bulletin. MOTOR AND LINKAGE - WINDSHIELD WIPER
08-208-26 REV. A2026-05-20. Service bulletin. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.
08-208-262026-05-20. Service bulletin. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle