# Service bulletin 0803121

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: 10220941
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 0803121
- Manufacturer's date: 2021\-03\-04
- NHTSA component: ELECTRICAL SYSTEM; VISIBILITY

## NHTSA's summary

Door Control Module Window Inoperative This bulletin involves replacing one or both of the front door modules. The technician may find that one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set:B18BA\-12 \- Window Control \- Circuit Short to Battery B18BA\-13 \- Window Control \- Circuit Open In addition the customer may notice one or more of the following:Driver and/or passenger windows stop working. If the window switch is held in the up position for at least two seconds,the obstruction autodown function may not work. Windows may go up slower than expected.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220941-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10220941-9999.pdf)

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

## Components

Electrical system, Glass, wipers and mirrors

## Trouble codes named

B18BA

## Vehicles listed

- 2020 to 2021 CHRYSLER 300
- 2020 to 2021 DODGE CHALLENGER
- 2020 to 2021 DODGE CHARGER

## Recalls for the same vehicles and component

- [21V664000](/recalls/nhtsa/21V664000.md), 2021-08-26: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [21V516000](/recalls/nhtsa/21V516000.md), 2021-07-08: VISIBILITY:WINDSHIELD:CRITICAL FASTENERS; VISIBILITY:WINDSHIELD
- [2020397](/recalls/tc/2020397.md), 2020-08-27: Visual System
- [2020145](/recalls/tc/2020145.md), 2020-04-06: Visual System

## Other bulletins for the same vehicles and component

- [S2608000010](/bulletins/11030042.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. 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 \(RFH\)
- [S1408000384 REV.J](/bulletins/11030035.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. 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
- [110608](/bulletins/11030022.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. SPEAKER \- NONE
- [S1408000384 REV.I](/bulletins/11028904.md), 2026-02-19, Service bulletin: ELECTRICAL SYSTEM. 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
- [9100735](/bulletins/11026651.md), 2025-12-17, Service bulletin: ELECTRICAL SYSTEM. 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
- [S2508000102](/bulletins/11025515.md), 2025-11-13, Service bulletin: ELECTRICAL SYSTEM. Intermittent Uconnect Box Requires Service Message. TBM Setting Stored Or Pending DTCs B22A9, B1560, B1561, B1562
- [S258A000017](/bulletins/11021581.md), 2025-08-06, Service bulletin: ELECTRICAL SYSTEM. Door speaker Inoperative or No Sound
- [18\-038\-25 REV. A](/bulletins/11020839.md), 2025-07-23, Service bulletin: ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience the following: ● Low speed stall or engine delay following a long engine idle time in hot ambient temperatures with the engine running on regular unleaded fuel. If the engine were to stall, the engine can immediately be restarted with an ignition cycle. This bulletin involves reprogramming the PCM with the latest available software.
- [S2208000138 REV.B](/bulletins/11020600.md), 2025-07-09, Service bulletin: ELECTRICAL SYSTEM. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
- [18\-038\-25](/bulletins/11020114.md), 2025-07-02, Service bulletin: ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience the following: ● Low speed stall or engine delay following a long engine idle time in hot ambient temperatures with the engine running on regular unleaded fuel. If the engine were to stall, the engine can immediately be restarted with an ignition cycle This bulletin involves reprogramming the PCM with the latest available software.

JSON: [/v1/bulletins/10220941](/v1/bulletins/10220941)

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