Service bulletins for the 2021 Infiniti QX50
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.
127 on file from NHTSA, as of 2026-10-19.
About B2E1B on the 2021 Infiniti QX50: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: B2E1B are shown. Show all
| ITB22-020B | 2024-09-04. Service bulletin. ELECTRICAL SYSTEM. TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION SERVICE INFORMATION The Telematics Control Unit (TCU) has the ability to send an automatic collision notification when the vehicle is involved in an accident. Once an automatic collision notification is performed, the function becomes disabled and the TCU must be reset to re-enable the automatic collision notification function. Some models will store DTC B2E1B-97 for “Automatic eCAll locked” as “CURRENT” when this function is disabled. This bulletin describes how to reset the TCU after an automatic collision notification has been performed. For models with B2E1B-97 for “Automatic eCAll locked” set as “CURRENT”, complete the SERVICE PROCEDURE starting on page 2, and then erase DTCs after confirming the TCU condition is “UNLOCK”. |
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| ITB23-015 | 2023-05-05. Service bulletin. ELECTRICAL SYSTEM. DTC B2E1B-06 (AUTOMATIC ECALL) STORED AS CURRENT IN IVC SERVICE INFORMATION The APPLIED VEHICLES that come equipped with a factory installed SOS switch, located near the overhead map lamp, also come equipped with a wireless communication device called a Telematics Communication Unit (TCU). With an active NissanConnect® Services subscription, the TCU communicates with the Nissan Data Center to provide various security and convenience services. 1. When diagnosing DTC B2E1B-06 (AUTOMATIC ECALL) on an APPLIED VEHICLE: • If DTC B2E1B-06 is not “CRNT” in the IVC, DO NOT replace the TCU. Erase the DTC. No further steps are needed. • If DTC B2E1B-06 is “CRNT” in the IVC, replace the TCU. o Refer to the ESM: REPAIR > DRIVER INFORMATION & MULTIMEDIA > AUDIO, VISUAL & NAVIGATION SYSTEM > REMOVAL AND INSTALLATION > TCU |
| ITB22-020 | 2022-06-03. Service bulletin. ELECTRICAL SYSTEM. TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION SERVICE INFORMATION The Telematics Control Unit (TCU) has the ability to send an automatic collision notification when the vehicle is involved in an accident. Once an automatic collision notification is performed, the function becomes disabled and the TCU must be reset to re-enable the automatic collision notification function. Some models will store DTC B2E1B-97 (Automatic eCAll locked) as “CURRENT” when this function is disabled. This bulletin describes how to reset the TCU after an automatic collision notification has been performed. For models with B2E1B-97 (Automatic eCAll locked) set as “CURRENT”, complete the SERVICE PROCEDURE starting on page 2, and then erase DTCs after confirming TCU condition is “UNLOCK”. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.