WenmarOpen by Wenmar Pro

Service bulletin 18-050-16 REV. A

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 id10076532
Published by NHTSA2016-07-14
Manufacturer's number18-050-16 REV. A
Manufacturer's date2016-06-29
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

"FLASH: POWERTRAIN DIAGNOSTIC AND SYSTEM IMPROVEMENTS THIS BULLETIN INVOLVES SELECTIVELY ERASING AND REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH NEW SOFTWARE. SYMPTOM/CONDITION: A SMALL NUMBER OF CUSTOMERS MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. UPON FURTHER INVESTIGATION THE TECHNICIAN MAY FIND ONE OR MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTCS) SET IN THE PCM: JC VEHICLES 3.6L: · P0335 - CRANKSHAFT POSITION SENSOR CIRCUIT. · P2610 - PCM INTERNAL ENGINE OFF TIMER PERFORMANCE. · U0140 - LOST COMMUNICATION WITH BODY CONTROL MODULE (BCM). · P0456 - EVAP SYSTEM SMALL LEAK. · P0108 - MANIFOLD ABSOLUTE PRESSURE SENSOR CIRCUIT HIGH (2012 MY ONLY). THE FOLLOWING TRANSMISSION ENHANCEMENTS ARE ALSO INCLUDED IN THIS SOFTWARE UPDATE: · CONTINUOUS CYCLING OF FUEL PUMP RELAY WHEN USING REMOTE START. · 1 - 2 UPSHIFT CLUNK OR BUMP. · 3 - 4 HARSH UPSHIFT AT CLOSED THROTTLE AFTER A WOT STAB IN 1ST OR 2ND GEAR. · 4 - 5 UPSHIFT CLUNK OR BUMP. · 5 - 6 UPSHIFT CLUNK OR BUMP. · 5- 4 DOWNSHIFT CLUNK OR BUMP. · 6 - 5 DOWNSHIFT CLUNK OR BUMP. · RPM FLUCTUATING OR JERKING WHILE OPERATING IN CRUISE CONTROL. CONDITION IS MORE NOTICEABLE WHEN THE VEHICLE IS GOING UP AND DOWN GRADES. · IMPROVES THE CONSISTENCY OF HOW SHIFTS ARE CONTROLLED DURING UPSHIFTS “TORQUE MANAGEMENT”. · DELAYED DOWNSHIFTS. JC VEHICLES 2.4L: · **U0140 - LOST COMMUNICATION WITH BODY CONTROL MODULE (BCM).** · P0456 - EVAP SYSTEM SMALL LEAK. THE FOLLOWING TRANSMISSION ENHANCEMENTS ARE ALSO INCLUDED IN THIS SOFTWARE UPDATE: · 1 - 2 UPSHIFT CLUNK OR BUMP. · 3 - 4 HARSH UPSHIFT AT CLOSED THROTTLE AFTER A WOT STAB IN 1ST OR 2ND GEAR. · 4 - 5 UPSHIFT CLUNK OR BUMP. · RPM FLUCTUATING OR JERKING WHILE OPERATING IN CRUISE CONTROL. CONDITION IS MORE NOTICEABLE WHEN THE VEHICLE IS GOING UP AND DOWN GRADES. · 1 - 2 HARSH UPSHIFT GOING DOWN A GRADE. · 3 - 2 DOWNSHIFT CLUNK OR BUMP. · 4 - 3 DOWNSHIFT CLUNK OR BUMP.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module

Trouble codes named

P0108, P0335, P0456, P2610, U0140

Vehicles listed
CHRYSLER 2002013
CHRYSLER TOWN AND COUNTRY2013
DODGE CARAVAN2013
DODGE JOURNEY2012, 2013

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

Other bulletins for the same vehicles and component
U672023-01-17. Service bulletin. Some of the above-involved vehicles may exceed NOx (Oxides of Nitrogen) emission level standards due to loss of catalytic converter efficiency
V512022-12-19. Service bulletin. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
S1121000006RevA2022-09-26. Service bulletin. (Revision A) No Start No Crank ? Starter Will Not Engage And There Are No Related Codes Or Concerns
18-050-162022-09-15. Service bulletin. Flash: Powertrain Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM: **JC Vehicles 3.6L: · P0335 - Crankshaft Position Sensor Circuit. · P2610 - PCM Internal Engine Off Timer Performance. · U0140 - Lost Communication With Body Control Module (BCM). · P0456 - Evap System Small Leak.** JC Vehicles 2.4L: · P0456 - Evap System Small Leak. JS Vehicles: · P0456 - Evap System Small Leak. RT Vehicles: · U0140 - Lost Communication With Body Control Module (BCM). · P0456 - Evap System Small Leak. The following transmission enhancements are also included in this software update: · Garage shift engagements into D may be harsh at times after shutdowns of 10-30 minute duration. · 5/6 Upshift timing adjusted to improve top speed performance (markets where speeds in excess of 161 kph (100 mph) are permitted).
R8149638A2022-09-15. Service bulletin. 8-speed transmission
24-005-172022-08-08. Service bulletin. Flash: HVAC Diagnostic and System Improvements This bulletin involves reprogramming the Heating Ventilation Air Conditioning (HVAC) Module with the latest available software. Some customers may notice one of the following:The Defrost button has to be pressed twice to activate the system. The Automatic Temperature Control (ATC)/ Manual Temperature Control (MTC) controller may lose its configuration. This condition can happen when the battery is disconnected or becomes low. This condition could also happen if CAN bus communication was lost. The software was changed to monitor the configuration every two secondsand updated it if the last data saved in memory is different from what is being received on the CAN bus to correct this issue (2011 Only).
21-012-12 REV. B2022-07-25. Service bulletin. Flash: Transmission Shift Quality Improvements This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new software.There may be two software packages to choose from. Both software updates will fix all symptoms/conditions listed. Refer to Service Bulletin 21-008-12 for details about the software choices. Some customers may notice any of the following: Harsh 1-3 upshift while operating in Economy (ECO) mode. Harsh 2-3 upshift while operating in normal mode.For 2012 model year, the harsh 1-3 upshift in Economy Mode and the harsh 2-3 upshift in Normal Mode was corrected in the revised software enhancements that were released in Service Bulletin 21-008-12 dated March 23, 2012. 1-2 upshift clunk following a throttle back out (2012 - 2013 model year only).In addition to correcting the previous Symptom/Conditions, the following enhancements have been made to improve the shift quality of the 62TE transmission: Shift schedule changes for the 1-2, 3-4, 4-5, and 5-6 upshifts and the 6-4P, 6-5, and 5-4 downshifts. Fifth gear torque converter lock-up/unlock improvements.
08-053-122022-07-25. Service bulletin. Flash: RHR, RHW Or RHP Radio Software Enhancements This bulletin involves upgrading the software on the RHR, RHW or RHP Radio. The customer may experience one or more of the following conditions. Erratic alternate frequency switching (International only). Bluetooth phone muting during European traffic announcement (International only). Lost channel presets, home addresses, address book entries & Travel Link favorites. Not able to change default country and state then route. Unable to load .jpeg files onto hard drive to display on touch screen. Vehicle with Start/Stop feature, the screen will go black when the engine turns off at a stop. (International only). Incomplete Travel Link temperature displayed when the temperature is over 100F. Example, if the temperature is 107F the screen will display 07. (Domestic U.S. only). Cancel key inoperative after pressing the international button. iPhone4 dial not possible after second call. Missing Travel Link buttons from SAT menu (Domestic U.S. only). Devices button disabled in VES menu. Unable to route to a recent route after a map update. Remove Travel Link disclaimer popup (Domestic U.S. only). Duplicate phone numbers in popup after pressing the international button. During active call and on hold, DIAL button should be displayed (not ?TONE? button). International button not visible. Point of interest (POI) Search enhancements. When video in remote DVD player is stopped devices button wrongly labeled as DVD. Access Travel Link immediately after radio no update when staying on TL screen. iPod, track selection enhancements.
08-032-12 REV. A2022-07-25. Service bulletin. Flash: No Audio From The Radio Caused By The Amplifier Not Communicating This bulletin involves re-flashing the Amplifier with updated software. The customer may indicate that there is no audio and/or radio is muted. This condition may be caused by the amplifier not communicating on the bus.Flashing the amplifier will correct this condition.
21-013-122022-07-25. Service bulletin. Transmission Shift Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. This PCM software enhancement improves how the shifts are controlled during upshifts (torque management).