B1A7D on the 2021 Jeep Renegade
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| 0805623 | 2024-01-02. Service bulletin. Flash: Radio Frequency Hub Module (RFHM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTCs) have been set: ? **B1A7D-2F- Start Button-Signal Erratic** ? B1053-64 RFHM (KIN Communication) - Signal Plausibility Failure Customers may also experience: ? **Vehicle can not be switched off using the keyless button.** ? ?Service Passive Entry? light on cluster. ? Vehicle will not shut off with DTC B1053-64. ? Vehicle may not start with DTC B1053-64. This bulletin involves updating the RFHM module with the latest available software. |
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| 0805623 | 2023-04-17. Service bulletin. Flash: Radio Frequency Hub Module (RFHM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTCs) have been set: ? **B1A7D-2F- Start Button-Signal Erratic** ? B1053-64 RFHM (KIN Communication) - Signal Plausibility Failure Customers may also experience: ? **Vehicle can not be switched off using the keyless button.** ? ?Service Passive Entry? light on cluster. ? Vehicle will not shut off with DTC B1053-64. ? Vehicle may not start with DTC B1053-64. This bulletin involves updating the RFHM module with the latest available software. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.