# Service bulletin 21\-NA\-091

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: 11012908
- Published by NHTSA: 2025\-01\-17
- Manufacturer's number: 21\-NA\-091
- Manufacturer's date: 2024\-12\-21
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This service bulletin provides information for customers/dealers/technicians on Normal Camera Display Operation \- Flashing Diamond \- Spot \- or UFO like image on Camera Display.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012908-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012908-9999.pdf)

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

## Vehicles listed

- 2020 to 2025 CADILLAC CT4
- 2020 to 2024 CADILLAC CT5
- 2020 to 2023 CADILLAC ESCALADE
- 2020 to 2023 CADILLAC ESCALADE ESV
- 2020 to 2023 CADILLAC XT4
- 2020 CHEVROLET BOLT EV
- 2020 CHEVROLET CORVETTE
- 2022 to 2023 CHEVROLET CORVETTE
- 2020 to 2023 CHEVROLET SILVERADO 1500
- 2020 to 2023 CHEVROLET SILVERADO 2500
- 2020 to 2023 CHEVROLET SILVERADO 3500
- 2020 to 2022 CHEVROLET SUBURBAN
- 2021 to 2023 CHEVROLET SUBURBAN 1500
- 2020 to 2023 CHEVROLET TAHOE
- 2020 to 2023 GMC SIERRA 1500
- 2020 to 2023 GMC SIERRA 2500
- 2020 to 2023 GMC SIERRA 3500
- 2020 GMC SIERRA DENALI
- 2020 to 2023 GMC YUKON
- 2020 to 2023 GMC YUKON XL
- 2023 GMC YUKON XL 1500

JSON: [/v1/bulletins/11012908](/v1/bulletins/11012908)

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