# Service bulletin 21NA215

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: 10214231
- Published by NHTSA: 2022\-06\-21
- Manufacturer's number: 21NA215
- Manufacturer's date: 2022\-02\-03
- NHTSA component: BACK OVER PREVENTION

## NHTSA's summary

This technical bulletin provides a procedure to correct a customer concern of a Pop Noise Heard on Heavy Acceleration Only.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10214231-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10214231-9999.pdf)

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

## Components

Driver assistance, Backup camera

## Vehicles listed

- 2021 to 2022 BUICK ENCORE GX
- 2021 to 2022 CHEVROLET TRAILBLAZER

## Other bulletins for the same vehicles and component

- [23\-NA\-042](/bulletins/10239115.md), 2023-07-14, Service bulletin: BACK OVER PREVENTION:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to update radio software to correct customer concerns of Software related issues.
- [23\-NA\-062](/bulletins/10237843.md), 2023-06-19, Service bulletin: EQUIPMENT; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Rear View Camera Issues \- DTCs B395A, B395B, B395C, B101E, B101D.
- [23\-NA\-062](/bulletins/10234186.md), 2023-04-14, Service bulletin: BACK OVER PREVENTION; ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides repair information to correct a customer concern of Rear View Camera Coaxial Related Issues \- DTCs B395A, B395B, B395C, B101E, B101D.
- [PIT5921A](/bulletins/10232793.md), 2023-03-13, Service bulletin: BACK OVER PREVENTION. This Preliminary information communicates diagnostics aids for rear view camera issues that may be encountered.
- [22\-NA\-127](/bulletins/10232458.md), 2023-03-04, Service bulletin: BACK OVER PREVENTION:SOFTWARE; EQUIPMENT:ELECTRICAL. This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer concerns of radio software issues.
- [PIT5940A](/bulletins/10226379.md), 2022-11-21, Service bulletin: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This Preliminary information communicates that a customer may notice that the gridlines on the backup camera are very dim. They may mention that this occurred after an OTA update. The dealer technician is advised to perform no repairs. The technician is advised that engineering is looking into a resolution and the resolution will be communicated through this PI or a bulletin when it becomes available.
- [PIT5913A](/bulletins/10216363.md), 2022-07-25, Service bulletin: BACK OVER PREVENTION:DISPLAY FUNCTION. This Preliminary information communicates a condtion where SD card removed is being displayed on the radio display intermittently. ThisPI advises that engineering is working on a fix for this issue
- [PIT5921](/bulletins/10216358.md), 2022-07-25, Service bulletin: BACK OVER PREVENTION. This Preliminary information communicates diagnostics aids for rear view camera issues that may be encountered.
- [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.
- [PIT5791A](/bulletins/10190443.md), 2021-04-19, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; BACK OVER PREVENTION:SOFTWARE. This Preliminary information communicates a condition where the radio may display a :connection not availale, please call OnStar agent". This bulletin advises that Engineering is working on a software solution that will prevent the message from displaying when listening to non\-SXM sources, but still allow the message to display when a loss of connectivity exists and the user is attempting to play Sirius XM.

JSON: [/v1/bulletins/10214231](/v1/bulletins/10214231)

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