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Service bulletin S2318000002

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 id10231738
Published by NHTSA2023-02-13
Manufacturer's numberS2318000002
Manufacturer's date2023-01-24
NHTSA componentEXTERIOR LIGHTING

NHTSA's summary

Malfunction Indicator Lamp (MIL) Illumination. Intake Manifold Runner Valve Diagnostic Trouble Codes (DTCs) Setting In Extreme Cold Ambient Temperatures.

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

Lighting

Vehicles listed
JEEP GLADIATOR2021, 2022, 2023
JEEP WRANGLER2020, 2021, 2022, 2023
RAM 15002020, 2021, 2022, 2023

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

Recalls for the same vehicles and component
20245762024-10-01. Lights And Instruments
24V7290002024-10-01. EXTERIOR LIGHTING:TURN SIGNAL; STEERING:STEERING CONTROL MODULE
24V6760002024-09-12. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; EXTERIOR LIGHTING:BRAKE LIGHTS
20245042024-09-05. Lights And Instruments
20236362023-11-28. Lights And Instruments
23V7990002023-11-28. STEERING:STEERING CONTROL MODULE; EXTERIOR LIGHTING
20235142023-09-18. Lights And Instruments
23V5650002023-08-10. EXTERIOR LIGHTING:BRAKE LIGHTS
22V3260002022-05-12. EXTERIOR LIGHTING
20217482021-12-10. Lights And Instruments

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
S2308000120 REV.B2024-06-24. Service bulletin. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative
08032242024-03-18. Service bulletin. Battery Pack Control Module (BPCM) Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ? P0AC0 - Hybrid Battery Pack Current Sensor 1 Circuit Performance. ? P1A29 - Cell Supervisory Circuit A Failure. ? P0DE7 - Hybrid/EV Battery Pack Cell Voltage High. ? P0ABA - Voltage Sense A Circuit. ? P0B3D - Hybrid Battery Voltage Sense "A" Circuit Low. ? P0B3E - Hybrid Battery Voltage Sense "A" Circuit High. ? U3017 - Control Module Timer/Clock Performance. ? P0E55 - DC/DC Converter Current Sensor Circuit "A". ? P0DAF - Hybrid/EV Battery Cell Balancing Circuit "A". ? P0AD4 - Hybrid Battery Pack Air Flow System Insufficient Air Flow. This bulletin involves updating the BPCM with the latest available software.
21010242024-03-18. Service bulletin. Flash: Transmission Control Module (TCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC): ? P1DB7-00 - Torque Converter Clutch Performance. This bulletin involves reprogramming the TCM with the latest available software.
18006242024-03-18. Service bulletin. Flash: Powertrain Control Module (PCM) Updates 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: ? P0301 - Cylinder 1 Misfire. ? P0302 - Cylinder 2 Misfire. ? P0303 - Cylinder 3 Misfire. ? P0304 - Cylinder 4 Misfire. ? P0305 - Cylinder 5 Misfire. ? P0306 - Cylinder 6 Misfire. ? P0307 - Cylinder 7 Misfire. ? P0308 - Cylinder 8 Misfire. Customers may also experience the following: ? An engine misfire This bulletin involves reprogramming the PCM with the latest available software.
03002242024-03-18. Service bulletin. Front and Rear Axle Sensor Kit **Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: ? C1451-11 - Service Axle Locker System** Customers may also comment on a Service Axle Locker message displayed in the Electronic Vehicle Information Center (EVIC) for this condition.
23004242024-03-18. Service bulletin. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses.
08249232024-01-16. Service bulletin. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Update 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: ? P0607-00 - ECU Internal Performance. ? P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long. This bulletin involves updating the BPCM with the latest available software.
08248232024-01-16. Service bulletin. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates 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: ? P0607-00 - ECU Internal Performance. ? P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long. This bulletin involves updating the BPCM with the latest available software.
08237232024-01-16. Service bulletin. Transfer Case Shift Motor Wire Harness Connector Not Secured Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? U0418-00 - Implausible Data Received From Brake System Control Module. ? C1444-98 - T-Case Motor Overuse-Component or System Over Temperature. ? C00A8-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor B-Circuit Open. ? C00A7-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor A-Circuit Open. ? C149E-64 - Transfer Case Motor Position Sensor-Signal Plausibility Failure. ? C1423-64 - Transfer Case Internal Performance-Signal Plausibility Failure. ? C1406-13 - Transfer Case Brake Control-Circuit Open. ? C1477-4B - Transfer Case Clutch-Over Temperature. ? C140A-13 - Transfer Case Motor Control-Circuit Open. ? U041E-00 - Invalid Data Received From All Wheel Drive Control Module. ? U0422-00 - Implausible Data Received From Body Control Module. ? U0418-00 - Implausible Data Received From Brake System Control Module 1. ? U041E-00 - Invalid Data Received Form All Wheel Drive Control Module. ? U0403-00 - Implausible Data Received From T-Case. The customer may also comment on the following: ? 4WD Service light displayed in the Instrument Panel Cluster (IPC). This bulletin involves performing a push?pull?push test on the transfer case shift motor wire harness connector.
91002412024-01-08. Service bulletin. FRT RT/LT - LAMP ASSY For moisture / water found in headlamp please review TSB 23-029-23 Headlamp Condensation clearing procedure. If the moisture problem persists: 1. Provide picture of headlamp moisture in headlamp after running the TSB. 2. Check for damage to headlamp lens, housing and flanges. Provide digital pictures of any damage found. Please make sure that pictures show location and severity of the damage is on the part. Please send the pictures along with the VIN, part number and mileage to the following: FCA Redacted Content