Service bulletin 18-050-15 REVA

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)
Type	Service bulletin
NHTSA id	10149662
Published by NHTSA	2018-12-03
Manufacturer's number	18-050-15 REVA
Manufacturer's date	2015-07-02
NHTSA component	POWER TRAIN

NHTSA's summary

Flash: 3.6L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience one or more of the following: ? Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find Diagnostic Trouble Code (DTC) U0140 - Lost Communication With Body Control Module (TIPM) stored in the Engine Control Module (ECM) memory. ? For 2011 vehicles built prior to February 2, 2011, the customer may experience a condition known as ?Idle Buffeting? while the vehicle is idling. This condition can be similar to driving down the road with one rear window down and all others rolled up, causing a thumping or buffeting sound. The idle speed will be adjusted to 650 RPM to correct this condition.

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

Trouble codes named

U0140

Vehicles listed
DODGE CHALLENGER	2011, 2012, 2013, 2014

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
1803714	2023-02-21. Service bulletin. 6.4L Powertrain Diagnostic And System Improvements For MIL Illumination
2103314	2023-01-17. Service bulletin. MIL Illumination For P0730 And Transmission Shift Enhancements
2101414	2023-01-17. Service bulletin. Transmission Shift Enhancements
1802714	2023-01-17. Service bulletin. Powertrain System Improvements/Enhancements
9003704	2023-01-09. Service bulletin. Transmission Oil Pan, Heater (TMU), Tube or O-ring Applies to vehicles equipped with 8 speed transmissions only; if you have a leak that appears to be at the pan the use of proper leak detection is recommended. The fluid in the 8 speeds can be detected with a black light and there are aftermarket spray on leak detection materials to help ensure that the leak is properly diagnosed and not from another location such as cooler lines, heater tubes, or case porosity. Please note that the transmission pan gasket is available for many of the 8 speed applications FCA offers. Please review the available quick connect and transfer tube parts, as replacement of the TMU may not be required. If a TOC line connection is found to be the source, the quick connect may need replacement. If the leak source is coming from the connection of the TMU to the transmission, the transfer tube may need replacement. When parts are returned to the QEC the retaining clips (snap ring) for the quick disconnect fittings are missing. (This leaves a question as to whether the clips were missing from the assembly plant, or the technician removed them in order to make line removal easier.) Please return the clips with the transmission heater and note if they were not there to begin with. For any questions regarding transmission heater, contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
2103515	2023-01-09. Service bulletin. Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software.
2102915	2023-01-09. Service bulletin. Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following conditions. ? Less than desired shift response during heavy load or aggressive driving in high ambient temperatures. ? Bump sensation felt while downshifting during coasting deceleration or normal braking (5.7L and 6.4L applications only) ? Less than desired fuel economy.
1809416	2022-12-19. Service bulletin. Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience one or more of the following conditions: · With the cluster set on metric units, they are unable to accurately increase or decrease the cruise control set speed using the resume or set buttons. Instead of changing vehicle speed by 1 kph when pressing the buttons, the vehicle speed will increase approximately 1.6 kph. · Potential gear hunting during cruise operation at lower vehicle speeds 40-64 kph (25-40 mph). In addition, a small number of customers may experience certain symptoms/conditions or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes have been set: · P1115 - General Temperature Rationality. · P0456 - EVAP System Small Leak. · P0441 - EVAP Purge System Performance. · P2610 - PCM Internal Engine Off Timer Performance. · P0300 - Multiple Cylinder Misfire. · P0301 - Cylinder 1 Misfire. · P0302 - Cylinder 2 Misfire. · P0303 - Cylinder 3 Misfire. · P0304 - Cylinder 4 Misfire. · P0305 - Cylinder 5 Misfire. · P0306 - Cylinder 6 Misfire. · P0307 - Cylinder 7 Misfire. · P0308 - Cylinder 8 Misfire. · P0335 - Crankshaft Position Sensor Circuit. · P0122 - Throttle Position Sensor 1 Circuit Low. · P0123 - Throttle Position Sensor 1 Circuit High. · P0222 - Throttle Position Sensor 2 Circuit Low. · P0223 - Throttle Position Sensor 2 Circuit High. · P2299 - Brake Pedal Position / Accelerator Pedal Position Incompatible. · P2096 - Downstream Fuel Trim System 1 Lean. (LC vehicles with Sales Code ESH with a manual transmission (Sales Code DEC). · P2097 - Downstream Fuel Trim System 1 Rich. (LC vehicles with Sales Code ESH with a manual transmission (Sales Code DEC).
2102016	2022-12-19. Service bulletin. Manual Transmission Shifter Noise This bulletin involves greasing or replacing the manual transmission rear shifter bushing. Customers may experience a clunk, squeak, or similar noise heard from center console area while shifting.
V51	2022-12-19. Service bulletin. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module