Technical Service Bulletin B540221 — 2020 BMW Z4
ELECTRICAL SYSTEM:SOFTWARE
Bulletin Details
| TSB ID | B540221 |
| Manufacturer | |
| Vehicle | 2020 BMW Z4 |
| Component | ELECTRICAL SYSTEM:SOFTWARE |
| Communication Date |
Bulletin Summary
CHECK CONTROL MESSAGE "ROOF NOT LOCKED": A check control message is displayed stating "Roof not locked", although the roof is securely locked.
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.
Other TSBs for the 2020 BMW Z4
B540324
STRUCTURE:BODY
B511323
STRUCTURE
B630821
ELECTRICAL SYSTEM
SIB090121
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
B650521
EQUIPMENT
B540221
VISIBILITY:SUN/MOON ROOF ASSEMBLY
B610120
EQUIPMENT ADAPTIVE/MOBILITY
B340320
SERVICE BRAKES, HYDRAULIC
B511318
POWER TRAIN
B510420
BACK OVER PREVENTION