Home › Service bulletins › SIB 54 01 21
SIB 54 01 21: Sunroof reverses when closing
Sunroof reverses when closing on BMW G11/G12 models (2016–2021); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 10194303 · Apr 2021 · also written SI B54 01 21, B540121
What it covers
A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.
SUNROOF REVERSES WHEN CLOSING: After the vehicle is left in the hot sun and/or high temperatures with the sunroof in the vented position, the sunroof may reverse (anti-trap activates) when closing.
Details
| Bulletin number | SIB 54 01 21 Also written: SI B54 01 21, B540121, 54 01 21, SIB-54-01-21, SI B540121 |
|---|---|
| NHTSA ID | 10194303 |
| Document IDs filed | B540121 |
| Type | Service bulletin |
| Date | |
| Models | 740e, 740i, 740LI, 745e |
| Model years | 2016–2021 |
| Chassis | G11, G12 |
| Engines | B46/B48, B58 |
| Component (NHTSA) | Equipment Visibility › Sun/Moon Roof Assembly |
Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.
More for these cars
Related bulletins
- SIB 11 01 20 Oil filter housing cracking Oil filter housing cracking on BMW G01/G02/G05/G07 and other models (2012–2021); BMW explains the cause and the approved repair. Service bulletin · Jun 2021
- SIB 13 05 19 Camshaft sensor new-car delivery hold Camshaft sensor new-car delivery hold on BMW G11/G12/G30/G31 models (2016–2018); unsold cars were held for inspection and repair before delivery. Service bulletin · Jul 2019
- SIB 01 10 19 Door warranty extension Door warranty extension on B46/B48 engines (2016–2018); BMW extended the warranty on this part for eligible cars. Warranty extension · Jun 2024
- SIB 01 05 22 Strut warranty extension Strut warranty extension on BMW G11/G12/F01/F02 models (2011–2022); BMW extended the warranty on this part for eligible cars. Warranty extension · Mar 2026
- SIB 61 03 21 Electrical system service information Electrical system service information on BMW G05/G06/G07/G11 and other models (2016–2021); BMW released a software update. Service bulletin · Feb 2024
- SIB 01 09 19 Fuel injectors warranty extension Fuel injectors warranty extension on BMW G01/G11/G12/G30 and other models (2011–2019); BMW extended the warranty on this part for eligible cars. Service bulletin · Nov 2023
Before you pay: check your VIN for recalls
Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.
Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.