Service bulletin 21-035-21
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 | 10204396 |
| Published by NHTSA | 2021-12-13 |
| Manufacturer's number | 21-035-21 |
| Manufacturer's date | 2021-11-17 |
| NHTSA component | POWER TRAIN; ELECTRICAL SYSTEM |
NHTSA's summary
Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following (DTC). P050B - Cold Start Ignition Timing Performance. Software enhancements also include:Improvements to 2-1 downshift quality.
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
Trouble codes named
P050B
| DODGE CHALLENGER | 2018 |
|---|---|
| DODGE CHARGER | 2018 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2018422 | 2018-08-09. Powertrain |
|---|---|
| 18V524000 | 2018-08-09. ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD |
| 18V332000 | 2018-05-17. ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING |
| 2018223 | 2018-05-01. Powertrain |
| 2018219 | 2018-05-01. Powertrain |
| 18V281000 | 2018-05-01. POWER TRAIN:DRIVELINE:DRIVESHAFT |
| 18V280000 | 2018-05-01. POWER TRAIN:AUTOMATIC TRANSMISSION |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| S2621000004 | 2026-10-07. Service bulletin. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only) |
|---|---|
| S2621000003 REV.A | 2026-03-18. Service bulletin. The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV, 8HP75-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13. |
| S2608000010 | 2026-03-13. Service bulletin. Active Diagnostic Trouble Code (DTC) B1A10-00, B1A11-00, B1A12- 00, B1A13-00-, B1A14-00, B1A15-00, B1A16-00, and B1A17-00 in The Radio Frequency Hub (RFH) |
| 9100735 | 2025-12-17. Service bulletin. Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders: Warranty, Mopar, Customer pay and Service contract. Order"68" part number for New unsold units only |
| S2208000138 REV.B | 2025-07-09. Service bulletin. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed |
| S2323000002 REV.A | 2025-05-19. Service bulletin. "Washer Light On And Will Not Turn Off After Adding Washer Solvent." |
| 104523 | 2025-04-25. Service bulletin. SWITCH AND BEZEL - FRONT DOOR |
| 103261 | 2025-03-04. Service bulletin. SWITCH AND BEZEL - FRONT DOOR |
| S1408000384 | 2024-03-18. Service bulletin. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On |
| S2323000082 | 2024-01-16. Service bulletin. Smart Glass Window Function Inoperative. Window Will Not Lower/Raise When Door Is Opened Or Closed, Diagnostic Trouble Code (DTC) B25B4-2A Pawl Switch Stuck. |