Technical Service Bulletin (TSB)
Flash: Powertrain Control Module (PCM) Updates
REFERENCE:

TSB: 18-094-25
GROUP: 18 - Vehicle Performance

Date:

November 12, 2025

REVISION: 18-083-24

VEHICLES
AFFECTED:

2024 (RU) Chrysler Pacifica
MARKET APPLICABILITY:
This bulletin applies to vehicles equipped with the 3.6L V6 VVT Engine
MEA
NA
Upgrade 1 (Sales Code ERC) and 9-Spd 948TE FWD/AWD Auto Trans
SA
IAP
(Sales Code DFH).
EE

CH

NOTE: **This bulletin applies
to the North America
market.**
CUSTOMER
SYMPTOM:

**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):
● P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation.**
Customers may experience one of the following:
● **A low battery state of charge and/or dead battery.
● Engine Stop/Start inoperable.**
● Vehicle may enter “Auto Park Mode” during an Engine Stop Start (ESS) event. The driver will be notified
that the vehicle is entering “Auto Park Mode” by the blinking D on the shifter for three blinks and then
automatically shifting into Park.
NOTE: **To shift out of Park, the driver will have to press down on the brake pedal and cycle the
ignition back to START, and move the shifter into the desired position.**

CAUSE:

PCM Software.

This bulletin supersedes Technical Service Bulletin (TSB) 18-083-24, date of issue November 12, 2024,
which should be removed from your files. All revisions are highlighted with **asterisks** and include a
new DTC, new Customer Symptom, new market note, added Customer Symptom note, updated Repair
Procedure step and new LOP.
REPAIR SUMMARY:
This bulletin involves reprogramming the PCM with the latest available software.
CLAIMS DATA:

Labor Operation No:
**18-19-06-G9

Failure Code

Labor Description
Module, Powertrain
Control (PCM) Reprogram
(0 - Introduction)
CC

Skill Category
1 - Engine Repair And
Performance

Customer Concern

Labor Time
0.2 Hrs.**

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.
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 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.
SPECIAL TOOLS/EQUIPMENT:

Description
wiTECH or Equivalent

Ref. No.
–

Notes
–

REPAIR PROCEDURE:
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.
1. Reprogram the PCM 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.**
2. 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.