WenmarOpen by Wenmar Pro

Service bulletin Z27

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 id10225382
Published by NHTSA2022-10-31
Manufacturer's numberZ27
Manufacturer's date2022-08-25
NHTSA componentELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

NHTSA's summary

Customer Satisfaction Notification Z27 PHEV Battery Replacement

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, Hybrid and electric drive, High-voltage battery

Vehicles listed
JEEP WRANGLER2021

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

Recalls for the same vehicles and component
25V7410002025-10-30. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V7200002024-09-27. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
23V7870002023-11-22. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

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
9004376-12023-01-17. Service bulletin. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
S22070000012022-12-19. Service bulletin. Coolant Color Looks Lighter Than Service Procedure Coolant
08054222022-10-17. Service bulletin. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: P1C00-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range Low. P1C01-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range High. P1A9B-00 - Hybrid/EV Battery Temperature Sensor 1 Out Of Range High. P0BBD-00 - Hybrid Battery Pack Voltage Variation Exceeded Limit. P167B-00 - Controlled System Shutdown. U1885-00 - Battery Energy Control Module Lost Communication With HCP. P0EDD-00 - Hybrid/EV Battery Pack B Deterioration. U0111 - Lost Communication With Hybrid Battery Pack Sensor Module. P0CA7-00 - Hybrid/EV Battery Discharging Current High. P1A0C-00 - Battery Energy Control Module System Voltage Low. This software enhancement will improve PHEV battery performance and diagnostics. Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this BPCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Invertor Module (PIM). Transmission Control Module (TCM). Powertrain Control Module (PCM). Integrated Dual Charging Module (IDCM).