Technical Service Bulletin B840621 — 2021 BMW 740I
COMMUNICATION:MANUFACTURER TELEMATICS
Bulletin Details
| TSB ID | B840621 |
| Manufacturer | |
| Vehicle | 2021 BMW 740I |
| Component | COMMUNICATION:MANUFACTURER TELEMATICS |
| Communication Date |
Bulletin Summary
The SIM card installed in the telematics control unit (ATM2) connects to different mobile providers' networks. However, due to a missing parameter, this does not work and can cause disruption in BMW ConnectedDrive services in areas with insufficient network coverage.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.