Service bulletins for the 2018 Dodge Challenger
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.
255 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Transmission and driveline are shown. Show all
| 21-035-21 | 2021-12-13. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. 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. |
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| S2008000113 Rev. | 2021-05-24. Service bulletin. POWER TRAIN. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle, Intermittent Key Not Detected Message |
| S1508000323 Rev. | 2021-04-26. Service bulletin. POWER TRAIN. PCM Sets DTC P1400-Aftermarket Calibration Detected/Warranty Coverage Confirmation Required |
| 08-092-20 | 2020-11-30. Service bulletin. STEERING; EQUIPMENT; POWER TRAIN. Improper Up Shift With Paddle Shift This bulletin involves replacing both steering wheel paddle shifter. Customers may experience the following:When trying to upshift using the paddle shifter on the steering, the transmission will downshift instead. |
| 9003704 | 2020-08-24. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. 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. |
| 21-046-19 | 2020-01-21. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. The following software update is available: Improvements to 2-1 downshift quality. |
| 18-104-19 | 2020-01-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience one or both of the following: A long crank time during engine start. Air Conditioning (A/C) clutch is intermittently not engaging when cruise control is activated. |
| 9003763 | 2020-01-21. Service bulletin. POWER TRAIN. Transfer case seal, Transmission Output Seal If vehicle has a fluid leak between the transfer case and the transmission on an AWD vehicle and it has been determined that the transfer case is leaking from the vent hole, don't replace the input seal. The vehicle can be repaired by: Transfer Case replace - 68214750A$ 3.6 Pentastar 68214751A$ 5.7 Hemi Replace Front Case Half - 68101734A$ 3.6 Pentastar 68101734A$ 5.7 Hemi Note: The transfer case oil already has dye in it so leak confirmation with a black light can be achieved. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.