# Service bulletin B661519

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.

- Type: Service bulletin
- NHTSA id: 10179823
- Published by NHTSA: 2020\-09\-14
- Manufacturer's number: B661519
- Manufacturer's date: 2020\-08\-01
- NHTSA component: LANE DEPARTURE

## NHTSA's summary

LANE DEPARTURE WARNING \- STEERING INTERVENTION TOO STRONG: The steering intervention for Lane Departure Warning \(LDW\) is too strong \(severe\), which can create an uncomfortable feeling for the driver. Background: Steering intervention helps keep the vehicle in the lane if the system detects that a lane marking has been crossed. The steering intervention can be noticed on the steering wheel and can be manually overridden at any time. Software error in the KAFAS \(camera\-based driver assistance system\) control unit.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10179823-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10179823-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Driver assistance

## Vehicles listed

- 2021 BMW 330E
- 2019 to 2020 BMW 330I
- 2017 to 2019 BMW 740E
- 2017 to 2020 BMW 740I
- 2016 to 2017 BMW 740LI
- 2020 BMW 745E
- 2018 to 2019 BMW 750I
- 2016 to 2019 BMW 750LI
- 2020 BMW 840I
- 2018 to 2020 BMW B7 ALPINA
- 2020 BMW M340I
- 2017 to 2020 BMW M760I
- 2020 BMW M8
- 2020 BMW M8 GRAN COUPE
- 2019 BMW M850I
- 2020 BMW M850I
- 2019 BMW M850XI
- 2019 to 2020 BMW X5
- 2020 BMW X6
- 2020 BMW X6 M
- 2019 to 2020 BMW X7
- 2019 to 2020 BMW Z4

## Recalls for the same vehicles and component

- [21V096000](/recalls/nhtsa/21V096000.md), 2021-02-19: BACK OVER PREVENTION:SOFTWARE; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
- [19V684000](/recalls/nhtsa/19V684000.md), 2019-09-27: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

## Other bulletins for the same vehicles and component

- [B660523](/bulletins/10244242.md), 2023-11-01, Service bulletin: VEHICLE SPEED CONTROL; LANE DEPARTURE; FORWARD COLLISION AVOIDANCE. Various functions of the camera\-based driver assistance systems \(ADCAM system\) can lead to customer complaints.
- [B652023](/bulletins/10242531.md), 2023-09-18, Service bulletin: BACK OVER PREVENTION:SOFTWARE. ?During workshop repairs with software updates, certain customer vehicles may be changed to BMW Operating System 8.5 and returned to customers without making them aware of the change.
- [B652223](/bulletins/10241372.md), 2023-08-28, Service bulletin: BACK OVER PREVENTION:SOFTWARE. Given the voice input "Activate ECO PRO mode" via BMW Intelligent Personal Assistant produces the response "I've activated ECO PRO mode", but ECO PRO mode is not actually activated in the vehicle.
- [SIB660823](/bulletins/10236236.md), 2023-05-15, Service bulletin: ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR; ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR. Issues with the various functions of the camera\-based driver assistance systems \(KAFAS system\) can possibly lead to following customer complaints: KAFAS camera system deactivates itself, due to system restrictions that are not clear to the customer KAFAS camera system cannot be activated due to system restrictions that are not clear to the customer Road signs are sporadically not detected.
- [B841422](/bulletins/10235206.md), 2023-05-01, Service bulletin: LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). Customer is shown an incorrect GPS location in the vehicle \(i.e., Nav Map, coordinates\).
- [B660523](/bulletins/10235204.md), 2023-05-01, Service bulletin: LANE DEPARTURE: SENSING SYSTEM: CAMERA; ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. Various functions of the camera\-based driver assistance systems \(ADCAM system\) can lead to customer complaints.
- [B652022](/bulletins/10227929.md), 2022-12-19, Service bulletin: LANE DEPARTURE; 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 93094C \- Knee airbag driver's side: Resistance too great 930952 \- Knee airbag, front passenger: Resistance too great.
- [B650222](/bulletins/10227927.md), 2022-12-19, Service bulletin: ELECTRICAL SYSTEM; LANE DEPARTURE; AIR BAGS. 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 93094C \- Knee airbag driver's side: Resistance too great 930952 \- Knee airbag, front passenger: Resistance too great.
- [B650414](/bulletins/10227568.md), 2022-12-12, Service bulletin: LANE DEPARTURE; UNKNOWN OR OTHER; AIR BAGS; SEATS:BARRIERS; BACK OVER PREVENTION. According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 \- Seat occupancy detection, front passenger; malfunction" is stored. The fault may or may not currently be present. Or 2. ACSM fault code "930A1C \- Front passenger seat occupancy detection transmitting fault\(moisture\)" is stored. The fault may or may not currently be present.
- [B511722](/bulletins/10227551.md), 2022-12-12, Service bulletin: FORWARD COLLISION AVOIDANCE; VISIBILITY; LANE DEPARTURE; STEERING; ELECTRICAL SYSTEM. Due to the semiconductor supply, the Local Interconnect Network module in either of the exterior mirrors was switched to another controller. That one provides an imprecise voltage measurement, which the main controller interprets as a fault. For the driving cycle, the customer may lose the display in either mirror and the Lane Change Warning function and, if installed, other functions such as\- Side collision warning; Lane Change Assistant; Steering and Lane Control Assistant; Emergency Lane Assistant Hands Off 60 Assistant.

JSON: [/v1/bulletins/10179823](/v1/bulletins/10179823)

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