# Service bulletin S2321000005

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: 10248561
- Published by NHTSA: 2024\-01\-08
- Manufacturer's number: S2321000005
- Manufacturer's date: 2023\-09\-13
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION

## NHTSA's summary

Transmission Fluid Leak From Under The Vehicle.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248561-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248561-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline, Automatic transmission

## Vehicles listed

- 2022 to 2023 JEEP GRAND CHEROKEE
- 2020 to 2024 JEEP WRANGLER

## Recalls for the same vehicles and component

- [26V413000](/recalls/nhtsa/26V413000.md), 2026-06-30: POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)

## Other bulletins for the same vehicles and component

- [S2309000012](/bulletins/10248869.md), 2024-01-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Mil\-On/Check Engine Lamp\-On with DTC P06DD set in the powertrain control module \(PCM\).
- [S2321000009](/bulletins/10248859.md), 2024-01-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Malfunction Indicator Lamp \(MIL\) Illuminated. Active Diagnostic Trouble Code \(DTC\) P1DB7\-00 ? Torque Converter Clutch Performance, Set.
- [1801323](/bulletins/10248598.md), 2024-01-08, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience one or more of the following: ? Engine must be started twice to achieve drive ready \(at low temperatures around \-30°C, \-22°F\) when the vehicle was entered and started quickly. ??Performance Limited, Service Fuel System? popup while driving. ? Unable to enter electric mode driving while Fuel Oil Refresh Mode \(FORM\) is active. This bulletin involves reprogramming the PCM with the latest available software NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this HCP and AHCP update: ? Transmission Control Module \(TCM\). ? Hybrid Control Processor \(HCP\) and Auxiliary Hybrid Control Processor \(AHCP\) also known as Power Inverter Module \(PIM\) module.
- [S2321000009](/bulletins/10248583.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). MIL On with TCM P1DB7 Active
- [S2321000009](/bulletins/10244422.md), 2023-10-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. MIL On with TCM P1DB7 Active
- [S2321000005](/bulletins/10244400.md), 2023-10-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. Transmission Fluid Leak From Under The Vehicle.
- [1801323](/bulletins/10243278.md), 2023-10-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; POWER TRAIN. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience one or more of the following: ? \*\*The engine oil life displayed on Instrument Panel Cluster \(IPC\) drops down too fast when the engine oil dilution reaches high level without the ability to recover. ? Incorrect reporting of fuel tank high pressure sensor value on wiTECH and Freeze Frame. ? The fuel door will get locked in the event of a leak failure.\*\* ? Engine must be started twice to achieve drive ready \(at low temperatures around \-30°C, \-22°F\) when the vehicle was entered and started quickly. ? ?Performance Limited, Service Fuel System? popup while driving. ? Unable to enter electric mode driving while Fuel Oil Refresh Mode \(FORM\) is active. This bulletin involves reprogramming the PCM with the latest available software. NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this HCP and AHCP update: ? Transmission Control Module \(TCM\). ? Hybrid Control Processor \(HCP\) and Auxiliary Hybrid Control Processor \(AHCP\) also known as Power Inverter Module \(PIM\) module.
- [1807323](/bulletins/10243242.md), 2023-10-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: ? \*\*U115F\-00 \- Lost Communication With Driver Presence Detection Module.\*\* ? P02EE \- Cylinder 1 Injector Circuit Performance. ? P02EF \- Cylinder 2 Injector Circuit Performance. ? P02F0 \- Cylinder 3 Injector Circuit Performance. ? P02F1 \- Cylinder 4 Injector Circuit Performance. The customer may also experience one or more of the following when DTC U115F\-00 is triggered: ? \*\*Disabled engine stop / start \(ESS\) feature. ? Service ESS light and EVIC message is displayed in the Instrument Panel Cluster \(IPC\).\*\* This bulletin involves reprogramming the PCM with the latest available software.
- [2102023](/bulletins/10242814.md), 2023-09-25, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Transmission Control Module \(TCM\) Updates Customer may experience the following: ? Clunk or bump felt during an Engine Stop/Start \(ESS\) event. ? Roughness in shifts between gears 1 \& 2. This bulletin involves reprogramming the TCM with the latest available software.
- [2101623](/bulletins/10241115.md), 2023-08-21, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Flash: Transmission Control Module \(TCM\) Updates Customer may experience the following: ? Vehicle shifts excessively between gears 1 \& 2 in Selec\-Speed Control position. This bulletin involves reprogramming the TCM with the latest available software.

JSON: [/v1/bulletins/10248561](/v1/bulletins/10248561)

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