Service bulletin B122117

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10176362
Published by NHTSA	2020-06-15
Manufacturer's number	B122117
Manufacturer's date	2020-05-01
NHTSA component	EXTERIOR LIGHTING; ELECTRICAL SYSTEM

NHTSA's summary

ROUGH RUNNING IMMEDIATELY AFTER A COLD START: Immediately after a cold start the engine may run roughly during the catalyst heating period. Depending on the severity of this situation the malfunction indicator lamp (MIL) can be illuminated and the following fault code may be set: Fault code Control module Fault code text 151001 DME Ignition angle adjustment while idle speed cold start: ignition angle early In some circumstances if the vehicle is switched into a drive gear (R or D) when the RPM are low the engine may switch off. Should this occur the engine may be restarted normally. Software error in the DME.

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, Lighting

Vehicles listed
BMW X1	2016, 2017, 2018, 2019, 2020
BMW X1 SAV	2016 to 2017
BMW X2	2018, 2019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
2019042	2019-01-31. Lights And Instruments
19V074000	2019-01-30. EXTERIOR LIGHTING:TAIL LIGHTS
2017561	2017-11-15. Lights And Instruments

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
B840226	2026-07-31. Service campaign. Once the Telematics Module (TCB2) enters sleep mode, a BMW Data Services trigger for Remote Services(remote engine start, lock/unlock/climate conditioning) will not be able to reactivate the TCB2. Due to this issue, Remote Services will not function in the vehicle when parked and locked.
B011924	2025-01-23. Warranty extension. The Telematics Control Units (TCU) Internal Emergency (Backup) Battery for defects in materials and/or workmanship has been extended to 6 years without mileage limitation, as determined from the vehicles original first in-service / delivery date. This coverage is subject to the same vehicle eligibility requirements, limitations, and exclusions that apply to the BMW New Vehicle Limited Warranty.
B011624	2025-01-23. Warranty extension. The Telematics Control Units (TCU) Internal Emergency (Backup) Battery for defects in materials and/or workmanship has been extended to 6 years without mileage limitation, as determined from the vehicles original first in-service / delivery date. This coverage is subject to the same vehicle eligibility requirements, limitations, and exclusions that apply to the BMW New Vehicle Limited Warranty.
B01192024	2025-01-02. Warranty extension. The Telematics Control Units (TCU) Internal Emergency (Backup) Battery for defects in materials and/or workmanship has been extended to 6 years without mileage limitation, as determined from the vehicles original first in-service / delivery date.
B011824	2025-01-02. Warranty extension. The Telematics Control Units (TCU) Internal Emergency (Backup) Battery for defects in materials and/or workmanship has been extended to 6 years without mileage limitation, as determined from the vehicles original first in-service / delivery date.
B840324	2024-10-19. Service bulletin. The “End of life” or “Emergency call system error” Check Control message appears in the vehicle. The following fault memory entry is stored: B7F341 – Emergency battery: Hardware faulty
B611124	2024-04-01. Service bulletin. After performing a BMW Remote Software Upgrade (RSU), the functionality of the Comfort Access andPassive Go/Exit features may be reduced. Also, one or more of the following error memory entries below may be stored in the Basic Central Platform(BCP) module. 80424A Remote control receiver at the front (FBD5 VM): Programming defective 80424B Remote control receiver at the rear (FBD5 HM): Programming defective 80424C Remote control receiver at the front left (FBD5s VL): Programming defective 80424D Remote control receiver at the front right (FBD5s VR): Programming defective 80424E Remote control receiver at the rear right (FBD5s HR): Programming defective 80424F Remote control receiver at the rear left (FBD5s HL): Programming defective
B611305	2024-02-01. Service bulletin. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.
B521723	2024-02-01. Service bulletin. Customer states one of the front seats is inoperative. The seat heater and power supply are inoperative. During the vehicle test, the seat module does not respond. The power supply fuse for the seat module isfound to have blown.
B612723	2024-01-03. Service bulletin. When using the Key Reader to retrieve CBS information from the customer key, no current vehicle data is available, or the data does not match the maintenance schedule.