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Service bulletin 68090604A

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10149012
Published by NHTSA2018-11-26
Manufacturer's number68090604A
Manufacturer's date2015-08-12
NHTSA componentPOWER TRAIN; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

NHTSA's summary

Power Transfer Unit Prior to replacing the PTU, please review the following .~ Check if the service 4WD light is intermittent by driving under heavy throttle will produce a C1494-92 DTC, if yes, please call FCA axle engineering and do not replace the PTU. Bruce Michel at cell (248) 260-8641, or Jian Zhu at cell (248) 379- 1132. If neither answers with 15 minutes then proceed with the repair. ~ If the service 4WD light lamp is on steady then replace the Power Transfer Unit.

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, Transfer case

Trouble codes named

C1494

Vehicles listed
CHRYSLER CHRYSLER
DODGE DODGE
DODGE RAM 15002010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
DODGE RAM 25002010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
DODGE RAM 35002010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
DODGE RAM 45002011, 2012 (the catalog's model; the bulletin names a series or trim of it)
DODGE RAM 55002011, 2012 (the catalog's model; the bulletin names a series or trim of it)
FIAT FIAT
JEEP JEEP
RAM 15002009
RAM 15002013, 2014, 2015, 2016, 2017, 2018, 2019
RAM 25002009
RAM 25002013, 2014, 2015, 2016, 2017, 2018
RAM 35002007 to 2009
RAM 35002013, 2014, 2015, 2016, 2017, 2018
RAM 45002008 to 2009
RAM 45002013, 2014, 2015, 2016, 2017, 2018
RAM 55002008 to 2009
RAM 55002013, 2014, 2015, 2016, 2017, 2018
RAM C/V TRADESMAN2013 to 2016
RAM PROMASTER2014 to 2018
RAM PROMASTER 25002015
RAM PROMASTER 35002016
RAM PROMASTER CITY2015, 2016, 2017, 2018
RAM redundant 45002010
RAM redundant 55002010

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20V0800002020-02-13. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
16V4950002016-07-01. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
08-094-202020-11-30. Service bulletin. Flash: Drivetrain Control Module (DTCM) Update This bulletin involves reprogramming the DTCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set::If the customer has any concerns with the transfer case or if the tech performs any repairs on the transfer case, the software must be updated.C140E - Transfer Case Motor Blocked. If DTC C140E is present, follow normal diagnostic procedures before updating the DTCM.In addition the customer may describe the following:The ?Service 4WD? message/fault is displayed in the Instrument Panel Cluster (IPC). Transfer case shift fork tabs broken during range shift. Noisy (clunking/ratcheting) transfer case range shifts. Failure to complete transfer case range shifts. The following software enhancement is available:This update will help reduce premature transfer case failure.
21-037-152018-11-26. Service bulletin. Transmission Heater Assembly Reinforcement Plate This bulletin involves verifying the Transmission Heater Assembly build date and if necessary, replacing the Transmission Heater. A small number of customers may notice the presence of transmission fluid in the engine coolant.