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Service bulletins for the 2018 BMW X4

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.

81 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
B5108192024-02-01. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. The basic conditions for initializing the power windows are not met.
B6113052024-02-01. Service bulletin. ELECTRICAL SYSTEM. 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.
B6515232023-06-26. Service bulletin. ELECTRICAL SYSTEM. After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.
SIB6624192022-08-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may not start when placing the key against the steering column. Note: Opening, closing and starting via the BMW Digital Key or the Digital Key Card are not affected.
SIB6501222022-08-22. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. A check control message for the restraint system appears. In the instrument cluster, the red air bag warning light lights up permanently. One of the following fault codes is stored in the ACSM (air bag control unit): 930949 - Knee airbag, driver: short circuit to negative terminal 93094F - Knee airbag, front passenger: short circuit to negative terminal.
SIB6513122022-07-05. Service bulletin. ELECTRICAL SYSTEM. The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain MY2013 vehicles with option 609 (as of 7/2012 production). This uses map North America NEXT. The Headunit High 2 (HU-H2), also called NBT-EVO, superseded the NBT HU and was introduced in 3/2014. This uses map North America EVO. The Headunit High 4 (HU-H4, also called MGU21) superseded the MGU starting with certain MY2021 vehicles with option code 6U3 Live Cockpit Professional. This uses map North America JOY. The ENTRY Media/Navigation (HU-B) is the low line business version of the navigation system and was introduced in 3/2014. This uses map North America ROUTE. The ENTRY NAV EVO (HU-B2) replaced Entry Media/Navigation as the low-line business version and was introduced in certain MY2018 vehicles. This uses map North America WAY.
B8402212021-08-09. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM:SOFTWARE. The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022. The decision to phase out 3G network technology was made at the discretion of the respective cellular carriers and lies beyond the control of BMW. Due to the phase-out, BMW Assist and ConnectedDrive services will no longer be supported after this date.
B6507092020-08-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. NAVIGATION SYSTEM - REPORTING MISSING OR INCORRECT ROADMAP DATA: Do not replace parts and do not program the vehicle. Roads can change by up to 15% every year. To ensure the best navigation experience, we do everything in our power to create the best maps. Your reports help us to detect changes in your area and keep future versions of our maps as accurate as possible. Therefore, a road map error or missing data must be reported directly to the map supplier.
B6104192020-08-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.
B6104192020-07-27. Service bulletin. ELECTRICAL SYSTEM. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.
B8402142020-04-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: This Service Information Bulletin (Revision 7) replaces SI B84 02 14 dated May 2019. ConnectedDrive/BMW Assist features are partially or completely inoperative. This Service Information Bulletin: Is being published because vehicles are down for an extended period of time when researching system failures with ConnectedDrive or BMW Assist. Will assist you both in identifying the issue and providing technical support. CAUSE Not enough information is available for BMW NA engineers to assist the technician in diagnosing the root cause.
B6121152020-04-20. Service bulletin. ELECTRICAL SYSTEM. THE INSTRUMENT CLUSTER DISPLAYS VARIOUS CHECK CONTROL MESSAGES INSTRUMENT CLUSTER DISPLAYS VARIOUS CHECK CONTROL MESSAGES: This Service Information Bulletin (Revision 7) replaces SI B61 21 15 dated October 2018. The instrument cluster displays various check control messages.
B1207182018-11-26. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. DME FC 1C0102 IS STORED WITH NO OTHER RELATED FAULTS. The following fault has been stored in the Digital Motor electronics (DME) fault memory with no other engine oil pressure faults stored: ??1C0102 - oil pressure control, plausibility, static: Pressure too low This fault will not cause a customer complaint or a Check Control Message (CCM). The fault is typically identified during unrelated diagnostics. Software error in the Digital Motor Electronics (DME) may cause the fault code to be erroneously stored. Only Integration level 17-11-5xx and higher are affected.
B6207182018-10-09. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT CLUSTER REMAINS DARK AFTER STARTING THE ENGINE: When power Terminal 15 (key on) is energized, the instrument cluster does not initialize Ð no meters/dials are displayed and it remains completely black.
B8408182018-08-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. HEAD UNIT HIGH 2 RESET WHILE BLUETOOTH IS CONNECTED: The following event may cause an unexpected reset of the Head Unit High 2 (NBT EVO) when:
B8406162018-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. BMW ONLINE NON-FUNCTIONAL: CHECK ICC-ID IN ACCOUNT: BMW Online/BMW ConnectedDrive not functional.
B6205182018-08-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. HEADS UP DISPLAY SPORADICALLY INOPERATIVE: Fault memory entry ÒB7F6E4 HUD: Fault in display backlighting Òis stored in the instrument cluster.
B6219172018-05-14. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT CLUSTER REMAINS DARK AFTER STARTING THE VEHICLE: Upon starting the vehicle (terminal 15 switched on), the instrument cluster does not function (stays dark, no needle response, no bus communication).
B6217172018-04-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. ERRONEOUS HEAD-UP DISPLAY FAULT IN INSTRUMENT CLUSTER: B7F6E3 - HUD: Fault in the communication (HUD not answering) in instrument cluster fault.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.