Service bulletin 1800616

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	10215118
Published by NHTSA	2022-07-05
Manufacturer's number	1800616
Manufacturer's date	2016-01-14
NHTSA component	ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

Powertrain Diagnostic And System Enhancements.

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

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

Vehicles listed
RAM 1500	2016

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

Recalls for the same vehicles and component
18V332000	2018-05-17. ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING
17V821000	2017-12-20. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

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
S1709000010	2023-01-09. Service bulletin. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
2101716	2022-10-24. Service bulletin. Transmission Shift And Drivability Enhancements.
2101716	2022-08-22. Service bulletin. Transmission Shift And Drivability Enhancements.
1800116	2022-07-05. Service bulletin. This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
1800116 REV B	2022-07-05. Service bulletin. This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
S2025000001 Rev.	2020-12-28. Service bulletin. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
S2025000001 Rev.	2020-12-21. Service bulletin. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
18-001-16 REV. C	2020-10-26. Service bulletin. Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience bucking under hard acceleration. In addition customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · P206D-00 - Reductant Quality Sensor Circuit High. · P26AB-00 - Engine Coolant Bypass Valve Stuck. · P050E-00 - Cold Start Engine Exhaust Temperature Too Low. · U3017-00 - Control Module Timer/Clock Performance. · P026A-00 - Charge Air Cooler Efficiency Below Threshold. · P1296-00 - EGR Slow Response - Increasing Flow. · P20C2-00 - Reductant Heater 3 Control Circuit Performance. · P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Timing Control. The technician may also find the following Diagnostic Trouble Code (DTC) set in the Transmission Control Module (TCM) memory: · U1424-00 - Implausible Engine Torque Signal Received.
21-010-20	2020-04-06. Service bulletin. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set:P0731 - Gear Ratio Error In 1st. The customer may describe the following condition:Rough or harsh shifting during coastdown to a stop (might also be described as a 2-1 bump)(Sales Code EZH). In addition, the following software enhancements are also available:2-1 coast down improvement(Sales Code EXF). 3-2 coast down improvement(Sales Code EXF). Improvements to 5-3 downshift with pedal to improve 5-3-2 shifts(Sales Code EXF). 6-5 coast down improvement(Sales Code EXF). 2-3 upshift with less than 30% pedal(Sales Code EXF). Clutch C adaption stability (improves shift quality for new transmissions on gear shifts that use Clutch C)(Sales Code EXF). Garage shift to D improvements(Sales Code EXF). Rolling garage shift(Sales Code EXF). Implementation of End Of Line (EOL) adaption to improve shift quality on brand new transmissions. Diagnostics improvements(Sales Codes ERB, ERT and EZH). Improve shift quality on brand new transmission(Sales Code EZH). Improvement to first 1-2 shift after start(Sales Code EZH). Improvement to 1-2 shift, especially for colder operating temperatures(Sales Code EZH). 2-3 shift feel improvement especially for colder operating temperatures(Sales Code EZH). Coastdown shift improvements (6-5, 5-4, 4-3, 3-2 and 2-1)(Sales Code EZH). Coastdown shift feel refinement for double downshifts(Sales Code EZH). Kickdown improvements for the following shifts (7-6-5-4-3, 8-6-5-4, 6-3-2, 5-3-2 and 4-2)(Sales Code EZH). Improvement to 4-2-1(Sales Code EZH). Improved 7th gear upshift timing. Downhill engine braking improvements.
08-114-15 REV A	2019-05-20. Service bulletin. Radio Software Enhancements This bulletin involves updating the radio's software. CAUTION: Confirm the correct radio flash file to the applicable model and family vehicle before flashing. A customer may experience one or more of the following: ? Radio display screen intermittently may go blank. ? Radio display screen may lock up. ? Back up display may not turn off. ? Loss of radio memory for skipped channels or incorrectly displaying skipped channels in the menu list. ? Charging schedule showing in the setting menu (FF BEV only). ? Korean language was not supported (APAC - Korea only). Enhancement: ? Removing the charging schedule from showing in the setting menu (FF BEV only). ? Adding Korean language support (APAC - Korea only).