Technical Service Bulletin (TSB)
Flash: Body Control Module (BCM) Updates
REFERENCE:

TSB: 08-183-25
GROUP: 08 - Electrical

Date:

June 7, 2025

VEHICLES
AFFECTED:

2023 (WL) Jeep Grand Cherokee / Grand Cherokee L
This bulletin applies to vehicles equipped with China Specifications
Label (Sales Code 6EA).

REVISION: ––

MARKET APPLICABILITY:
NA

MEA

SA

IAP

EE

CH

CUSTOMER
SYMPTOM:

Customers may experience one or more of the following:
● Battery drained.
● Ignition off draw.
● Instrument Panel Cluster (IPC) goes off and on when the vehicle goes into sleep mode.
● Door lock indicator lamps stay illuminated.

CAUSE:

BCM software

REPAIR SUMMARY:
This bulletin involves updating the BCM with the latest available software.
CLAIMS DATA:

Labor Operation No:
18-19-02-JA

Failure Code

Labor Description
Module, Body Control
(BCM) - Reprogram
(0 - Introduction)
CC

Skill Category
6 - Electrical and Body
Systems

Labor Time
0.2 Hrs.

Customer Concern

The dealer must use failure code CC with this Technical Service Bulletin.
● If the customer’s concern matches the SYMPTOM identified in the Technical Service Bulletin, failure code
CC is to be used.
● When utilizing this failure code, the 3C’s (customer’s concern, cause and correction) must be provided for
processing Technical Service Bulletin flash/reprogramming conditions.

Z08 FSAR-TSB-5601

-2-

RELATED LOPS:

Labor Operation No:
18-19-87-53

Labor Description
wiTECH Routine to
Disable/Enable HV
Battery Contactors for
Service; Includes 5
Minute Waiting Period
(0 - Introduction)

Skill Category
6 - Electrical and Body
Systems

Labor Time
0.2 Hrs.

SPECIAL TOOLS/EQUIPMENT:

Description
wiTECH or Equivalent

Ref. No.
-

Notes
-

DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerCONNECT/
Service Library, verify all related systems are functioning as designed. If Diagnostic Trouble Codes (DTCs) or
symptom conditions, other than the ones listed above are present, record the issues on the repair order and
repair as necessary before proceeding further with this bulletin.
If the customer describes any of the symptoms listed above in the customer symptom section, perform the
Repair Procedure.
REPAIR PROCEDURE:
WARNING!
● For PHEV/MHEV vehicles: Before performing the software reprogramming, it is necessary to make
the vehicle safe.
● When performing repairs that directly involve or imply possible contact with live high voltage
components/systems, the technician must ensure that the power supply of the high-voltage system
is disconnected throughout the operation.
● Only specifically trained technicians qualified to perform repairs on vehicles with high voltage
systems under current national laws/regulations are authorized to work on the vehicle.
● Before performing any diagnostic repair work on the vehicle, carefully read and comply with
the general instructions for working safely on hybrid/electric vehicles and use suitable general
equipment and Personal Protective Equipment (PPE).
WARNING!
For PHEV/MHEV vehicles: The vehicle must not be connected to a high voltage charger when
performing software updates.
NOTE: Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow
the charging voltage to climb above 13.5 volts during the flash process.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.

-3-

Z08 FSAR-TSB-5601

1. Is the vehicle PHEV/MHEV equipped?

2.
3.

4.

5.
6.

● YES>>> Proceed to Step 2.
● NO>>> Proceed to Step 4.
Disable HV Battery Contactors using wiTECH - Go to the Misc Functions tab --> Select Disable HV Battery
Contactors --> then follow the wiTECH prompts.
Use wiTECH to confirm that the contactors are open and waiting five minutes. If the contactors do not
open turn the ignition on then off. Once successful a note will appear on the wiTECH screen indicating the
contactors are open.
Reprogram the BCM with the latest available software. If issues arise when flashing a module using the
wiTECH Diagnostic Application, please submit a ticket to the Helpdesk. The helpdesk can be found within
the Help menu.
For PHEV/MHEV vehicles: Enable HV Battery Contactors using wiTECH - Go to the Misc Functions tab
--> Select Enable HV Battery Contactors For Service--> then follow the wiTECH prompts.
Clear all DTCs that may have been set in any module due to reprogramming. The wiTECH application will
automatically present all DTCs after the flash and allow them to be cleared.

POLICY:
Reimbursable within the provisions of the warranty.
This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of FCA US LLC.