# Service bulletin N192219370

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: 10169647
- Published by NHTSA: 2019\-12\-30
- Manufacturer's number: N192219370
- Manufacturer's date: 2019\-11\-20
- NHTSA component: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

## NHTSA's summary

Certain 2019 model year Chevrolet Silverado \(New Model\) and GMC Sierra 1500 \(New Model\) vehicles, equipped with a 2.7L, 4 cyl. Turbo engine \(L3B\), may have a condition where the engine wiring harness could wear through in several locations. This may allow the engine harness to short to ground and/or be severed, which may lead to a check engine light, reduced engine power, no start condition or in rare cases a stall. Dealers are to wrap the wiring harness with Nylogard sleeve\(s\) in areas of concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10169647-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10169647-9999.pdf)

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

## Components

Electrical system, Engine, Turbocharger or supercharger

## Vehicles listed

- 2019 CHEVROLET SILVERADO 1500
- 2019 GMC SIERRA 1500

## Other bulletins for the same vehicles and component

- [21NA113](/bulletins/10214207.md), 2022-06-21, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator.

JSON: [/v1/bulletins/10169647](/v1/bulletins/10169647)

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