WenmarOpen by Wenmar Pro

Service bulletin 08-312-26

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 id11036157
Published by NHTSA2026-08-13
Manufacturer's number08-312-26
Manufacturer's date2026-08-07
NHTSA componentELECTRICAL SYSTEM; POWER TRAIN

NHTSA's summary

Powertrain Modules Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P1E18-00 - Internal Control Module Electronic Park Performance. ● P1625-00 - Park Pawl System Failure. ● P1626-00 - Park Pawl Motor Stuck. NOTE: If DTCs P1E25-00, P1625-00 or P1626-00 are active, the vehicle will stay in READY mode since the Electric Vehicle Control Unit (EVCU) is not able to confirm if the park pawl is engaged, and the vehicle will be secured. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance. Customers may also comment on one or more of the following: ● Vehicle is not shutting off and draining the 12V battery. ● Unable to start the vehicle.

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

P0A78, P0A79, P1625, P1626, P1E18, P1E25

Vehicles listed
JEEP WAGONEER S2024, 2025

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

Recalls for the same vehicles and component
26V2620002026-04-23. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
20260432026-02-02. Electrical
26V0590002026-02-02. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS
25V5740002025-09-04. POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:PARK PAWL

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
S26230000562026-10-07. Service bulletin. The Door Latch Module Has Active Faults With No Warning Indicators In Cluster
91009262026-10-07. 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.
74D Combo Rev22026-09-10. Service campaign. Revised Customer Satisfaction Notification 74D – Powertrain Modules Software Update Dealer Notification The powertrain modules software on about 18,900 of the above vehicles may contain multiple software issues that could cause various vehicle operating symptoms or conditions.
S2623000052 REV. A2026-09-10. Service bulletin. Airbag Warning Light On or Intermittent. The Occupant Restraint Controller (ORC) May Have The Following DTCs (Active/Stored)
80D Combo Rev12026-08-19. Service campaign. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 80D The powertrain modules software on about 3,300 of the above vehicles may contain multiple software issues that could cause various vehicle operating symptoms or conditions.
79D Combo Rev12026-08-19. Service campaign. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 79D The powertrain modules software on about 36 of the above vehicles may contain multiple software issues that could cause various vehicle operating symptoms or conditions.
74D Combo Rev12026-08-19. Service campaign. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 74D SYMPTOM DESCRIPTION The powertrain modules software on about 18,900 of the above vehicles may contain multiple software issues that could cause various vehicle operating symptoms or conditions.
91008802026-08-13. Service bulletin. Cluster Assembly When the technician connects to the vehicle via Witech, they observe Stored and/or Pending DTC in the IPC for KM49, LB, KM74 Programs. The instrument cluster should not be replaced based solely on the presence of stored or pending DTCs in the IPC. Replacement should only be considered if the stored or pending DTC becomes active during the troubleshooting and diagnostic process.
a2026-08-06. Service campaign. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 80D The powertrain modules software on about 3,300 of the above vehicles may contain multiple software issues that could cause various vehicle operating symptoms or conditions.
79D Combo2026-08-06. Service campaign. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 79D The powertrain modules software on about 36 of the above vehicles may contain multiple software issues that could cause various vehicle operating symptoms or conditions.