Service bulletin 21-031-24
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 | 11001251 |
| Published by NHTSA | 2024-06-07 |
| Manufacturer's number | 21-031-24 |
| Manufacturer's date | 2024-05-16 |
| NHTSA component | POWER TRAIN |
| Manufacturer's system | Transmission Control Module |
NHTSA's summary
"Flash: Transmission Control Module (TCM) Updates The following software advancements are available: ● Transmission Shift Quality Improvements. This bulletin involves reprogramming the TCM 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
Transmission and driveline
| CHRYSLER PACIFICA | 2024 |
|---|---|
| CHRYSLER VOYAGER | 2024 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| S2508000052 REV.B | 2026-07-02. Service bulletin. Service Shifter Message on the Cluster and Shifter Unable to move Out of Park |
|---|---|
| 44D Combo | 2026-07-02. Warranty extension. Emissions Recall 44D - Hybrid Control Module Software - Dealer Notification Hybrid Control Processor (HCP) on about 69,189 of the above vehicles may have software that does not correctly report On-Board Diagnostic (OBD) legislated Integrated Dual Charging Module (IDCM) diagnostic information. The HCP is required to store OBD legislated Diagnostic Trouble Codes (DTC's) and command the malfunction indicator light (MIL) on behalf of the IDCM. |
| S2508000052 Rev A | 2026-06-18. Service bulletin. Service Shifter Message on the Cluster and Shifter Unable to move Out of Park |
| 21-037-26 | 2026-05-06. Service bulletin. Internal Transmission Wiring Connector Short And Motor A Bearing Failure 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): ● P0A3F-00 - Drive Motor A Position Sensor 1 Circuit. ● P0A43-00 - Drive Motor A Position Sensor Circuit Intermittent. ● P0A45-00 - Drive Motor B Position Sensor 1 Circuit. ● P0C1A-00 - Drive Motor B Torque Delivered Performance. Customers may also comment on the following: ● Vehicle is in limp mode This bulletin involves rebuilding the transmission |
| 109997 | 2026-02-12. Service bulletin. ACTUATOR - TRANSFER CASE |
| 18-094-25 | 2025-11-19. Service bulletin. Flash: Powertrain Control Module (PCM) 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): ● 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.** This bulletin involves reprogramming the PCM with the latest available software. |
| 21-040-25 | 2025-10-08. Service bulletin. 948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DB7-00 - Torque Converter Clutch Performance. |
| S2523000050 | 2025-05-28. Service bulletin. Vibration From Engine Or Powertrain. Powertrain Mounting Neutralization Procedure. Discussion: Service information is in the process of being updated to include powertrain mount installation best practices. The new procedure will neutralize the mounts to lessen or remove unwanted mount tension that can lead to vibration complaints. |
| 18-083-24 | 2024-11-18. Service bulletin. "Flash: Powertrain Control Module (PCM) Updates Customers may experience one of the following: ● 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. 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. This bulletin involves reprogramming the PCM with the latest available software." |
| S2309000013 | 2024-01-16. Service bulletin. Verifying Camshaft Diagnosis |