# Service bulletin 20NA197

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: 10181720
- Published by NHTSA: 2020\-10\-26
- Manufacturer's number: 20NA197
- Manufacturer's date: 2020\-09\-23
- NHTSA component: EQUIPMENT; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:HOSES/VALVES/SENSORS

## NHTSA's summary

This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181720-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181720-9999.pdf)

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

## Components

Equipment and accessories, Fuel system, Evaporative emissions

## Vehicles listed

- 2019 CHEVROLET 6500
- 2017 to 2018 CHEVROLET SILVERADO 1500
- 2017 to 2020 CHEVROLET SILVERADO 2500
- 2017 to 2020 CHEVROLET SILVERADO 3500
- 2019 to 2020 CHEVROLET SILVERADO 4500
- 2020 CHEVROLET SILVERADO 5500
- 2019 CHEVROLET SILVERADO 6500
- 2019 CHEVROLET duplicate SILVERADO 5500
- 2017 to 2020 GMC SIERRA 2500
- 2017 to 2020 GMC SIERRA 3500
- 2017 to 2018 GMC SIERRA DENALI

## Other bulletins for the same vehicles and component

- [PIT5723A](/bulletins/10224286.md), 2022-10-17, Service bulletin: FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER; FUEL SYSTEM, GASOLINE. This Preliminary information communicates information that the EVAP purge pump may be filling with liquid fuel if the customer overfills the fuel tank by over 3 clicks of a normal filler nozzle. Reference N202324990: Special Coverage \- Evaporative Emissions Purge Pump for repair information
- [21NA124](/bulletins/10199281.md), 2021-07-19, Service bulletin: FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

JSON: [/v1/bulletins/10181720](/v1/bulletins/10181720)

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