# Service bulletin PIE0609A

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: 10200156
- Published by NHTSA: 2021\-08\-09
- Manufacturer's number: PIE0609A
- Manufacturer's date: 2021\-06\-16
- NHTSA component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR:INTEGRATED STARTER\(OTHER THAN PROPULSION\); EQUIPMENT; ELECTRICAL SYSTEM; ENGINE

## NHTSA's summary

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a noise heard from the engine compartment, loss of charging and/or reduced alternator output.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200156-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200156-9999.pdf)

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

## Components

Electrical system, Engine, Equipment and accessories, Alternator

## Vehicles listed

- 2021 CADILLAC ESCALADE ESV
- 2021 CADILLAC ESCALADE NA
- 2019 to 2021 CHEVROLET SILVERADO 1500
- 2019 CHEVROLET SILVERADO 2500
- 2019 CHEVROLET SILVERADO 4500
- 2019 to 2021 GMC SIERRA 1500
- 2019 GMC SIERRA DENALI

JSON: [/v1/bulletins/10200156](/v1/bulletins/10200156)

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