# Service bulletin 1806120REVA

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: 10223977
- Published by NHTSA: 2022\-10\-17
- Manufacturer's number: 1806120REVA
- Manufacturer's date: 2020\-10\-17
- NHTSA component: SERVICE BRAKES; POWER TRAIN; BACK OVER PREVENTION; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module \(ECM/PCM\) with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P2706 \- MS Solenoid Circuit\(Sales Code DG7 Only\). P0868 \- Line Pressure Low. P229F \- Aftertreatment NOx Sensor Circuit Performance \- Bank 1 Sensor 2. P207F \- Reductant Quality Performance. P2509 \- PCM/PCM Power Input Signal Intermittent. P0401 \- EGR System Performance. P0870 \- OD Hydraulic Pressure Test. P040B \- Exhaust Gas Recirculation Temperature Sensor "A" Circuit Performance. P2201 \- Aftertreatment NOx Sensor Circuit Performance \- Bank 1 Sensor 1. P1C54 \- SCR NOx Catalyst Missing. P249E \- Closed Loop SCR Reductant Injection Control At Limit \- Flow Too High. P0128 \- Thermostat Rationality. P24C7 \- Particulate Matter Sensor Temperature Circuit Performance. Customers may also comment on the following:Engine misfire in cold ambient temperatures. In addition, the following software enhancements are also available:Scan tool fan actuation test fix. Enabling diagnostics forDTC P208B\- Reductant Pump 1 Control Performance. Unable to turn on the ability to set ?MAX? road speed using wiTECH scan tool. Mass Air Flow \(MAF\) sensor Out Of Range \(OOR\) low calibration. Improved 5\-4 shift \(reduce shift flare\) after extended operation in 5th or 6th gear. Engine Manifold Pressure Misfire Monitor \(EMP MFM\) retune\(Sales Code DG7 Only\). Idle based misfire retune. Abort timer for Selective Catalytic Reduction \(SCR\) out NOx sensor missing change to 70 seconds. Map SCR missingFault/DTC P1C54to tampering inducement. Particulate Matter \(PM\) sensor false fault improvement. CC inner loop used up faults. Ultrasonic Flow Meter \(UFM\) test results fix. Engine run state idle unstable software fix. Ability to write Engine Serial Number \(ESN

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10223977-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10223977-9999.pdf)

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

## Components

Brakes, Driver assistance, Electrical system, Fuel system, Lighting, Transmission and driveline, Backup camera

## Trouble codes named

P0128, P0401, P040B, P0868, P0870, P1C54, P207F, P208B, P2201, P229F, P249E, P24C7, P2509, P2706

## Vehicles listed

- 2018 RAM 2500
- 2018 RAM 3500

## Recalls for the same vehicles and component

- [18V398000](/recalls/nhtsa/18V398000.md), 2018-06-14: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

## Other bulletins for the same vehicles and component

- [103289](/bulletins/11014887.md), 2025-03-04, Service bulletin: BACK OVER PREVENTION: WARNINGS; LANE DEPARTURE: BLIND SPOT DETECTION. CAMERA \- REAR VIEW
- [S1808000152](/bulletins/10243131.md), 2023-10-02, Service bulletin: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; BACK OVER PREVENTION. CEL \(Check Engine Lamp\) Illuminated, P057B Brake Pedal Position Sensor Performance
- [08\-008\-23](/bulletins/10231777.md), 2023-02-13, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION; WHEELS; STEERING. UAS and UCS Radio Enhancements Customers may experience one or more of the following: \*\*Wi\-Fi hotspot connection failure. Speaker popping, crackle noise during Voice Recognition \(VR\) response and navigation guidance. Mobile Station Integrated Services Digital Network \(MSISDN\) missing from radio, no connected services working.\*\* Wireless connectivity pairing and/or connection issues. Lost radio presets. Radio channels change by itself. SXMT icon inoperative. SXMT favorite song not displaying/playing. High pitch squeal, pop or hum noise from speakers. Anti\-theft code request message. Lines appear across screen. Radio will not switch modes between AM, FM, SAT or Media. Performance control home screen shows ?Norm? mode for engine/transmission even when the vehicle is in ?Drag? mode \(LA, LD, LX only\). Can not change the time on the clock \(LA, LD and LX only\). USB hub inoperable \(D\-Trucks only\). Backup camera gridlines missing \(D\-Trucks only\). Device not supported message \(D\-Trucks only\). Remote app inoperative \(D\-Trucks only\). Unable to adjust volume \(D\-Trucks only\). Heated steering wheel inoperable \(D\-Trucks only\). In addition, the following enhancement are included in this update: CarplayT connectivity improvements. Improvement to wireless connectivity phone pairing. Improved sound quality when using a wireless connectivity phone. \*\*This bulletin involves inspecting and if required, updating the radio software level to 40.1. Depending on the radio?s current software level the radio may need a one or two USB update.\*\*
- [S1623000028 Rev.](/bulletins/10231735.md), 2023-02-13, Service bulletin: VEHICLE SPEED CONTROL; BACK OVER PREVENTION; POWER TRAIN; VISIBILITY; PARKING BRAKE. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
- [S1625000003 Rev.](/bulletins/10231712.md), 2023-02-13, Service bulletin: BACK OVER PREVENTION; EXTERIOR LIGHTING. Malfunction Indicator Lamp \(MIL\) Illumination. NOx Sensor Diagnostic Trouble Codes \(DTCs\) Diagnosis Information.
- [0809321](/bulletins/10230134.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION. UAS, UAQ, UCS, UAV, UCV and UCQ Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air \(FOTA\) update and provides the service technician an overview of the steps a customer will need to take to complete the update. This is part of a two step FOTA update, first update brings software level to 22.61 and this second FOTA update will take the software to 22.64. National launch for this second step is May 24, 2021. Customers may experience one or more of the following:Navigation is incorrect or can not calculate route. GPS locations is inaccurate. Uconnect radio apps are all inoperable. Backup camera screen is blue \(DT and KL\). Green horizontal lines appear across screen \(DT and KL\). Anti\-theft code request message. Backup camera screen is blank. Lines appear across screen. Radio control screen is blank or locked. Radio reset intermittently. Unable to adjust audio volume. Unable to switch modes between AM, FM, SAT or Media. In addition the following enhancements are included in this update:Carplay® connectivity improvement. Improvement to Bluetooth® phone pairing. Bluetooth devices unresponsive. Improved sound quality when using a Bluetooth phone.
- [08\-003\-22 REV. A](/bulletins/10229816.md), 2023-01-17, Service bulletin: STEERING; EQUIPMENT:ELECTRICAL:INFOTAINMENT; BACK OVER PREVENTION. UAQ and UCQ Radio Enhancements Customers may experience one or more of the following: ? \*\*Wi\-Fi hotspot connection failure. ? Speaker popping, crackle noise during Voice Recognition \(VR\) response and navigation guidance. ? Mobile Station Integrated Services Digital Network \(MSISDN\) missing from radio, no connected services working.\*\* ? Intermittent, black radio display screen \(Rear View Camera \(RVC\) not affected\). ? Intermittent, radio freezes \(RVC not affected\). ? Wireless connectivity pairing and/or connection issues. ? Lost radio presets. ? Radio channels change by itself. ? SXMT icon inoperative. ? SXMT favorite song not displaying/playing. ? Incorrect navigation address/location/directions. ? Backup camera has black display screen or only displays Check Entire Surroundings with black screen \(occurs when vehicle is shifted immediately to reverse upon key\-on before RVC signal is received, recoverable with key cycle\) . ? High pitch chime noise. ? Contact list not loading. ? Device not supported message. ? Remote app inoperative. ? Travel\-Link fuel price incorrect. ? Backup camera gridlines missing. ? Unable to adjust volume. In addition, the following enhancement are included in this update: ? Enables map updates. ? Heavy Duty \(HD\) Truck USB HUB improvements. ? HD Truck heated steering wheel improvements This bulletin involves inspecting and if required, updating the radio software level to 40.1. Depending on the radio?s current software level the radio may need a one or two USB update.
- [1808022](/bulletins/10228035.md), 2022-12-19, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\); BACK OVER PREVENTION; POWER TRAIN; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; EXTERIOR LIGHTING. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule \(ECM/PCM\) with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P064F \- Unauthorized Software/Calibration Detected. P2706 \- MS Solenoid Circuit\(68RFE Only\). P0868 \- Line Pressure Low. P229F \- Aftertreatment NOxSensor Circuit Performance \- Bank 1 Sensor 2. P207F \- Reductant Quality Performance. P2509 \- PCM/PCM Power Input Signal Intermittent. P0401 \- EGR System Performance. P0870 \- OD Hydraulic Pressure Test. P040B \- Exhaust Gas Recirculation Temperature Sensor "A" Circuit Performance. P2201 \- Aftertreatment NOx Sensor Circuit Performance \- Bank 1 Sensor 1. P1C54 \- SCR NOx Catalyst Missing. P249E \- Closed Loop SCR Reductant Injection Control At Limit \- Flow Too High. P0128 \- Thermostat Rationality. P24C7 \- Particulate Matter Sensor Temperature Circuit Performance. Customers may also comment on the following: Engine misfire in cold ambient temperatures. In addition, the following software enhancements are also available: Scan tool fan actuation test fix. Enabling diagnostics forDTC P208B\- Reductant Pump 1 Control Performance. Unable to turn on the ability to set ?MAX? road speed using wiTECH scan tool. Mass Air Flow \(MAF\) sensor Out Of Range \(OOR\) low calibration. Improved 5\-4 shift \(reduce shift flare\) after extended operation in 5th or 6th gear. Engine Manifold Pressure Misfire Monitor \(EMP MFM\) retune\(68RFE Only\). Idle based misfire retune. Abort timer for Selective Catalytic Reduction \(SCR\) out NOx sensor missingchange to 70 seconds. Map SCR missingFault/DTC P1C54to tampering inducement. Particulate Matter \(PM\) sensor false fault improvement. CC inner loop used up faults. Ultrasonic Flow Meter \(UFM\) test results fix. Engine run state idle unstable software fix.
- [0811721](/bulletins/10221668.md), 2022-09-26, Service bulletin: BACK OVER PREVENTION; WHEELS; STEERING. UAS and UCS Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 39.6 Customers may experience one or more of the following: Intermittent, black radio display screen. Intermittent, radio freezes. Bluetooth® pairing and/or connection issues. Lost radio presets. Radio channels change by itself. SXM icon inoperative. USB hub inoperable. Heated steering wheel inoperable. SXM favorite song not displaying/playing. High pitch chime noise. Contact list not loading. Device not supported message. Remote app inoperable. Travel\-link fuel price incorrect. Navigation displays incorrect location. Backup camera grid lines missing. Unable to adjust volume.
- [S228A000004RevB](/bulletins/10221446.md), 2022-09-26, Service bulletin: BACK OVER PREVENTION. Panasonic VP4R Wi\-Fi New Enrollment Pause

JSON: [/v1/bulletins/10223977](/v1/bulletins/10223977)

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