# Service bulletin 2103122

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: 10227751
- Published by NHTSA: 2022\-12\-12
- Manufacturer's number: 2103122
- Manufacturer's date: 2022\-10\-20
- NHTSA component: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\)

## NHTSA's summary

Transfer Case Replacement This bulletin involves replacing the transfer case assembly for Diagnostic Trouble Code \(DTC\) C14A1\-74. Customers may experience a ?Service 4WD message? illumination. Upon further investigation the technician may find the following DTC has been set: C14A1\-74 \- Unintended Actuator Shaft Movement Detected\-Actuator Slipping.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227751-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227751-9999.pdf)

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

## Components

Transmission and driveline, Transfer case

## Trouble codes named

C14A1

## Vehicles listed

- 2021 JEEP GRAND CHEROKEE
- 2022 JEEP GRAND CHEROKEE 4XE

## Other bulletins for the same vehicles and component

- [9100083](/bulletins/10225952.md), 2022-11-07, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). Transfer Case Do not replace Transfer Case if unable to complete a DTCM flash or calibration process unless SOL Publication S2203000004 has been performed.
- [08\-103\-22](/bulletins/10214601.md), 2022-06-27, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); EQUIPMENT; ELECTRICAL SYSTEM. Flash: Drivetrain Control Module \(DTCM\) Updates This bulletin involves reprogramming the DTCM with the latest available software. Customers may experience a ?Service 4WD message? illumination. Upon further investigation the technician may find one or more of the the following DTCs have been set: C1472\-92 \- Transfer Case Clutch Control\-Performance Or Incorrect Operation\(Sales Code DHY only\).If any of these DTCs C1472\-92, C149D\-54 or C2206\-56 are present\(Sales Code DHY only\), proceed toStep 11of the Repair Procedure. C1463\-94 \- Front Axle Disconnect Control\-Unexpected Operation. The customer may also experience the following:Service 4WD light illuminated. Front axle does not engage when selected.
- [S2121000014 RevC](/bulletins/10212327.md), 2022-05-31, Service bulletin: POWER TRAIN; POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). Service 4WD Message Illuminated. Diagnostic Trouble Code \(DTC\) C1472\-92 ? Transfer Case Clutch Control ? Performance or Incorrect Operation.

JSON: [/v1/bulletins/10227751](/v1/bulletins/10227751)

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