# Service bulletin 20NA180

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: 10183196
- Published by NHTSA: 2020\-11\-30
- Manufacturer's number: 20NA180
- Manufacturer's date: 2020\-10\-08
- NHTSA component: LANE DEPARTURE

## NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of Lane Keep Assist Unintentionally Moves Vehicle Slightly Left or Right.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183196-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183196-9999.pdf)

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

## Components

Driver assistance

## Vehicles listed

- 2019 to 2020 BUICK ENVISION

## Other bulletins for the same vehicles and component

- [25\-NA\-118](/bulletins/11023051.md), 2025-09-10, Service bulletin: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking \(AEB\) issues.
- [PIP5623](/bulletins/10232815.md), 2023-03-13, Service bulletin: BACK OVER PREVENTION; ENGINE AND ENGINE COOLING. This Preliminary information communicates that a rotational clicking noise heard after engine shut down is a design characteristic and no repairs should be attempted.
- [070601016G](/bulletins/10213761.md), 2022-06-13, Service bulletin: BACK OVER PREVENTION. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
- [22NA012](/bulletins/10212628.md), 2022-05-31, Service bulletin: ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. This service bulletin provides information for dealers/technicians on Stone Chip/Membrane Damage, Broken Connector and/or Sensor Retaining Tabs, and/or Paint Damage of Park Assist Sensors.
- [PIC6048N](/bulletins/10208021.md), 2022-02-14, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN; STEERING; AIR BAGS; LANE DEPARTURE; BACK OVER PREVENTION. This Preliminary Information communicates to the technician 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 \(15.75 in\).
- [PIP5708B](/bulletins/10201262.md), 2021-09-13, Service bulletin: POWER TRAIN; BACK OVER PREVENTION; ELECTRICAL SYSTEM. This Preliminary information communicates to the technician the vehicle concern of starter flex plate having broken teeth. This can create a noise during starting or may even have the starter spin but not crank over the engine. The document directs the technician to replace the flex plate and inspect the starter pinion drive teeth and replace starter assembly as needed.
- [PIT5698B](/bulletins/10201251.md), 2021-09-13, Service bulletin: ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
- [PIC6086G](/bulletins/10185728.md), 2021-01-25, Service bulletin: VISIBILITY; BACK OVER PREVENTION. This Preliminary Information communication provides the technician with steps to resolve the issue of an oily substance that may be found on the inside windshield surface, and appears to be leaking from the rear view mirror area. Technician will remove the moisture sensor and clean the glass and mounting bracket with alcohol wipe. If the gel separates from the sensor the sensor will need to be replaced.
- [20NA180](/bulletins/10181706.md), 2020-10-26, Service bulletin: LANE DEPARTURE. This technical bulletin provides repair information to correct a customer concern of Lane Keep Assist Unintentionally Moves Vehicle Slightly Left or Right.
- [19NA010](/bulletins/10178255.md), 2020-08-10, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:ADAS:HUD:SOFTWARE. This informational bulletin provides information for dealers/technicians on Head\-Up Display \(HUD\) on Vehicles Model Year 2017 and Newer Having Rotational Feature that Allows for Adjusting of Angle of HUD Image.

JSON: [/v1/bulletins/10183196](/v1/bulletins/10183196)

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