# Service bulletin PIC6418B

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: 10201276
- Published by NHTSA: 2021\-09\-13
- Manufacturer's number: PIC6418B
- Manufacturer's date: 2021\-06\-10
- NHTSA component: LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\)

## NHTSA's summary

This Preliminary information communicates steps to perform to determine if the concern relates to a Navigation loading concern that is under engineering investigation.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201276-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201276-9999.pdf)

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

## Components

Driver assistance, Equipment and accessories, Lane departure and lane keeping

## Vehicles listed

- 2018 to 2020 BUICK REGAL
- 2018 to 2019 CADILLAC ATS
- 2018 to 2019 CADILLAC CTS
- 2018 to 2019 CADILLAC XTS
- 2018 GMC TERRAIN

## Other bulletins for the same vehicles and component

- [PIC6048H](/bulletins/10123244.md), 2017-11-14, Service bulletin: ELECTRICAL SYSTEM; LANE DEPARTURE: WARNING. This Preliminary Information communicates to thetechnician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by \(40 cm\) or \(15.75 in\).

JSON: [/v1/bulletins/10201276](/v1/bulletins/10201276)

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