Service bulletin 08-057-25
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11014730 |
| Published by NHTSA | 2025-03-04 |
| Manufacturer's number | 08-057-25 |
| Manufacturer's date | 2025-03-01 |
| NHTSA component | ELECTRICAL SYSTEM; ENGINE |
| Manufacturer's system | Ignition System Control Module |
NHTSA's summary
"Flash: Ignition System Control Module (ISCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2C30-00 - Ignition Coil Primary Circuit Fuse A. ● P2C31-00 - Ignition Coil Primary Circuit Fuse B. ● P0300-00 - Multiple Cylinder Misfire. ● P0301-00 - Cylinder 1 Misfire Detected. ● P0302-00 - Cylinder 2 Misfire Detected. ● P0303-00 - Cylinder 3 Misfire Detected. ● P0304-00 - Cylinder 4 Misfire Detected. ● P0305-00 - Cylinder 5 Misfire Detected. ● P0306-00 - Cylinder 6 Misfire Detected. ● P0420-00 - Catalyst System Efficiency Below Threshold Bank 1. ● P0430-00 - Catalyst System Efficiency Below Threshold Bank 2. Customers may also comment on the following: ● Engine hesitates/misfires. This bulletin involves reprogramming the ISCM with the latest available software."
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, Engine
Trouble codes named
P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0420, P0430, P2C30, P2C31
| JEEP GRAND WAGONEER | 2025 |
|---|---|
| JEEP WAGONEER | 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 18-083-26 | 2026-10-16. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P2237-00 - O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1. ● P2240-00 - O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1. ● P2251-00 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. ● P2254-00 - O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1. ● P2243-00 - O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1. ● P2247-00 - O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1. ● P015B-00 - O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 1. ● P015D-00 - O2 Sensor Delayed Response - Lean To Rich Bank 2 Sensor 1. ● P2AF6-00 - Starter Relay 3 Stuck Off. ● P0E7C-00 - Coolant Bypass Valve "B" Control Circuit Low. ● P0E7D-00 - Coolant Bypass Valve "B" Control Circuit High. ● P0E7E-00 - Coolant Bypass Valve "B" Control Circuit Range/Performance. ● P0E7F-00 - Coolant Bypass Valve "B" Control Circuit Stuck/Open. ● U063C-00 - Lost Communication With Coolant Bypass Valve Actuator "B". ● P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit. ● P0101-00 - Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance. ● P0461-00 - Fuel Level Sensor "A" Circuit Range/performance. ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. ● P062B-00 - Internal Control Module Fuel Injector Control Performance. ● B1810-00 - Driver Door Shorted Low. ● B25C7-00 - Redundant Driver Door Shorted Low.** ● U0673-00 - Lost Communication With Ion Sense Module (in active or stored status). ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking (in active or stored status). ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected (in active or stored status). This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software. |
|---|---|
| 18-082-26 | 2026-10-16. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P2237-00 - O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1. ● P2240-00 - O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1. ● P2251-00 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. ● P2254-00 - O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1. ● P2243-00 - O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1. ● P2247-00 - O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1. ● P015B-00 - O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 1. ● P015D-00 - O2 Sensor Delayed Response - Lean To Rich Bank 2 Sensor 1. ● P2AF6-00 - Starter Relay 3 Stuck Off. ● P0E7C-00 - Coolant Bypass Valve "B" Control Circuit Low. ● P0E7D-00 - Coolant Bypass Valve "B" Control Circuit High. ● P0E7E-00 - Coolant Bypass Valve "B" Control Circuit Range/Performance. ● P0E7F-00 - Coolant Bypass Valve "B" Control Circuit Stuck/Open. ● U063C-00 - Lost Communication With Coolant Bypass Valve Actuator "B". ● P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit. ● P0101-00 - Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance. ● P0461-00 - Fuel Level Sensor "A" Circuit Range/performance. ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. ● P062B-00 - Internal Control Module Fuel Injector Control Performance. ● B1810-00 - Driver Door Shorted Low. ● B25C7-00 - Redundant Driver Door Shorted Low.** ● U0673-00 - Lost Communication With Ion Sense Module (in active or stored status). ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking (in active or stored status). ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected (in active or stored status). This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software. |
| 18-083-26 | 2026-10-16. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P2237-00 - O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1. ● P2240-00 - O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1. ● P2251-00 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. ● P2254-00 - O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1. ● P2243-00 - O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1. ● P2247-00 - O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1. ● P015B-00 - O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 1. ● P015D-00 - O2 Sensor Delayed Response - Lean To Rich Bank 2 Sensor 1. ● P2AF6-00 - Starter Relay 3 Stuck Off. ● P0E7C-00 - Coolant Bypass Valve "B" Control Circuit Low. ● P0E7D-00 - Coolant Bypass Valve "B" Control Circuit High. ● P0E7E-00 - Coolant Bypass Valve "B" Control Circuit Range/Performance. ● P0E7F-00 - Coolant Bypass Valve "B" Control Circuit Stuck/Open. ● U063C-00 - Lost Communication With Coolant Bypass Valve Actuator "B". ● P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit. ● P0101-00 - Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance. ● P0461-00 - Fuel Level Sensor "A" Circuit Range/performance. ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. ● P062B-00 - Internal Control Module Fuel Injector Control Performance. ● B1810-00 - Driver Door Shorted Low. ● B25C7-00 - Redundant Driver Door Shorted Low.** ● U0673-00 - Lost Communication With Ion Sense Module (in active or stored status). ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking (in active or stored status). ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected (in active or stored status). This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software. |
| 18-082-26 | 2026-10-16. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P2237-00 - O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1. ● P2240-00 - O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1. ● P2251-00 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. ● P2254-00 - O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1. ● P2243-00 - O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1. ● P2247-00 - O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1. ● P015B-00 - O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 1. ● P015D-00 - O2 Sensor Delayed Response - Lean To Rich Bank 2 Sensor 1. ● P2AF6-00 - Starter Relay 3 Stuck Off. ● P0E7C-00 - Coolant Bypass Valve "B" Control Circuit Low. ● P0E7D-00 - Coolant Bypass Valve "B" Control Circuit High. ● P0E7E-00 - Coolant Bypass Valve "B" Control Circuit Range/Performance. ● P0E7F-00 - Coolant Bypass Valve "B" Control Circuit Stuck/Open. ● U063C-00 - Lost Communication With Coolant Bypass Valve Actuator "B". ● P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit. ● P0101-00 - Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance. ● P0461-00 - Fuel Level Sensor "A" Circuit Range/performance. ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. ● P062B-00 - Internal Control Module Fuel Injector Control Performance. ● B1810-00 - Driver Door Shorted Low. ● B25C7-00 - Redundant Driver Door Shorted Low.** ● U0673-00 - Lost Communication With Ion Sense Module (in active or stored status). ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking (in active or stored status). ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected (in active or stored status). This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software. |
| 9100926 | 2026-10-07. Service bulletin. WIRELESS CHARGER Welcome GREEN LED not turning ON after multiple IGN ON/OFF without sleep cycle and no phone on the charging pads. Part numbers affected: 68630089AA 68630088AB 68649038AA Welcome Green LED turns on for 1 second after multiple IGN ON/OFF without sleep cycle and no phone on the charging pad. Intent of this condition is to notify the customer/dealership that the Wireless Charging Pad is ready to charge. Do not report as warranty claim, no impact to wireless charger functionality. Part numbers affected: 68630089AB 68630088AD 68649038AB Advice to dealership: Do no replace wireless charger PNs 68630089AA,68630088AB,68649038AA if no Welcome GREEN LED is seen after multiple IGN ON/OFF without sleep cycle and no phone on the charging pads. This feature is available in the successor NIKs, no impact to wireless charger functionality. |
| 08-221-26 REV. B | 2026-09-30. Service bulletin. R1H Radio U41.10 Software Update - Dealer Option Customers may experience one or more of the following: SYMPTOM: ● **Speakers may emit a humming, screeching, buzzing, clicking, or bass noise (not related to the amplifier).** ● FCW OFF light ON with no DTCs and can't turn off. ● Blank screen and then reboot every 2 minutes and 40 seconds. (Rearview Camera Functions Normally). ● Paddle shifters not working/no longer a setting. ● Autolocks not working. ● Auto headlights not working. ● AM station not working (Appears some of the vehicles PROXI defaults to "1" which is absent for AM). ● Album Art flickering issue. ● Blank screen and then reboot every 2 minutes and 40 seconds. ● CarPlay icon disappears from main screen while still active, leaving no navigation path back. ● Light/dark theme mismatch between Radio and temperature screens at key-on Radio experiences lockups, resets, blank screens, and language issues after FOTA. ● Valet mode sends duplicate requests causing HU and vehicle state misalignment. ● Rear seat media page intermittently shows a blank screen. ● Unable to select or drag 'Pitch and Roll' widget on home screen. ● USB playback resumes incorrectly, skipping to next track after reconnect. ● Album art not displayed on HMI despite availability in media. ● Incorrect call timer displayed for conference calls. ● Call status remains 'active' on widget after call ends. ● Second call status not updated on home screen widget. ● Rear entertainment tab intermittently blank when switching apps. ● System crashes for 20 to 30 seconds after voice reply action. ● Media progress bar continues incorrectly after second call acceptance. ● CarPlay device fails to reconnect automatically or manually. ● Rear HVAC lock/unlock text missing while icon is present. ● Visual glitch observed on Front Passenger Display Module (FPDM) display. ● Surround view camera accessible while driving across apps (unexpected behavior). This bulletin involves inspecting and if required, updating the radio software level to U41.10. Depending on the radio's current software level the radio may need a one or two USB update |
| S2623000052 REV. A | 2026-09-10. Service bulletin. Airbag Warning Light On or Intermittent. The Occupant Restraint Controller (ORC) May Have The Following DTCs (Active/Stored) |
| S2623000001 REV.A | 2026-09-03. Service bulletin. Rotary Shifter Lights Blinking, Shifter Not Moving, Not Going Into Gear. |
| 114265 | 2026-09-03. Service bulletin. TRANSMITTER KIT & TRANSMITTER - INTEGRATED KEY FOB |
| 114268 | 2026-09-03. Service bulletin. TRANSMITTER KIT & TRANSMITTER - INTEGRATED KEY FOB |