TSB: CHEVROLET CANYON, COLORADO, CRUZE, EQUINOX, EXPRESS, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, TERRAIN (2010–2022)

Bulletin 19NA237 — October 17, 2019

Bulletin Details

Bulletin ID19NA237
ManufacturerCHEVROLET
ModelsCANYON, COLORADO, CRUZE, EQUINOX, EXPRESS, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, TERRAIN
Model Years2010–2022
Date IssuedOctober 17, 2019
Date Added to NHTSAMay 31, 2022
ComponentENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Vehicles Affected473 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

This informational bulletin explains how to identify possible DEF contamination.

Affected Vehicles

MakeModelYearComponent
GMC SIERRA 1500 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 4500HD 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 5500HD 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 6500HD 2022 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC CANYON 2021 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2021 350000 EQUIPMENT
GMC CANYON 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET COLORADO 2021 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2021 350000 EQUIPMENT
CHEVROLET COLORADO 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2021 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2021 350000 EQUIPMENT
CHEVROLET EXPRESS 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2021 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2021 350000 EQUIPMENT
GMC SAVANA 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2021 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2021 350000 EQUIPMENT
GMC SIERRA 1500 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2021 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2021 350000 EQUIPMENT
GMC SIERRA 2500 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2021 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2021 350000 EQUIPMENT
GMC SIERRA 3500 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2021 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2021 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2021 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2021 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2021 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2021 350000 EQUIPMENT
CHEVROLET SILVERADO 3500 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 4500HD 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 5500HD 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 6500HD 2021 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC CANYON 2020 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2020 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2020 350000 EQUIPMENT
GMC CANYON 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET COLORADO 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2020 350000 EQUIPMENT
CHEVROLET COLORADO 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2020 350000 EQUIPMENT
CHEVROLET EXPRESS 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2020 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2020 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2020 350000 EQUIPMENT
GMC SAVANA 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2020 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2020 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2020 350000 EQUIPMENT
GMC SIERRA 1500 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2020 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2020 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2020 350000 EQUIPMENT
GMC SIERRA 2500 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2020 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2020 350000 EQUIPMENT
GMC SIERRA 3500 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2020 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2020 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2020 350000 EQUIPMENT
CHEVROLET SILVERADO 3500 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 4500HD 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 4500HD 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 5500HD 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 5500HD 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 6500HD 2020 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 6500HD 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC TERRAIN 2020 080000 FUEL SYSTEM, DIESEL
GMC TERRAIN 2020 080000 FUEL SYSTEM, DIESEL
GMC TERRAIN 2020 350000 EQUIPMENT
GMC TERRAIN 2020 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC CANYON 2019 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2019 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2019 350000 EQUIPMENT
GMC CANYON 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET COLORADO 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2019 350000 EQUIPMENT
CHEVROLET COLORADO 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CRUZE 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2019 350000 EQUIPMENT
CHEVROLET CRUZE 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EQUINOX 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET EQUINOX 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET EQUINOX 2019 350000 EQUIPMENT
CHEVROLET EQUINOX 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2019 350000 EQUIPMENT
GMC SIERRA 1500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2019 350000 EQUIPMENT
GMC SIERRA 2500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2019 350000 EQUIPMENT
GMC SIERRA 3500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2019 350000 EQUIPMENT
GMC SIERRA DENALI 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2019 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2019 350000 EQUIPMENT
CHEVROLET SILVERADO 3500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 4500HD 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 4500HD 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 4500HD 2019 350000 EQUIPMENT
CHEVROLET SILVERADO 4500HD 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 5500HD 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 5500HD 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 6500HD 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 6500HD 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC TERRAIN 2019 080000 FUEL SYSTEM, DIESEL
GMC TERRAIN 2019 080000 FUEL SYSTEM, DIESEL
GMC TERRAIN 2019 350000 EQUIPMENT
GMC TERRAIN 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC CANYON 2018 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2018 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2018 350000 EQUIPMENT
GMC CANYON 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET COLORADO 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2018 350000 EQUIPMENT
CHEVROLET COLORADO 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CRUZE 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2018 350000 EQUIPMENT
CHEVROLET CRUZE 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EQUINOX 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET EQUINOX 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET EQUINOX 2018 350000 EQUIPMENT
CHEVROLET EQUINOX 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2018 350000 EQUIPMENT
CHEVROLET EXPRESS 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2018 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2018 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2018 350000 EQUIPMENT
GMC SAVANA 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2018 350000 EQUIPMENT
GMC SIERRA 1500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2018 350000 EQUIPMENT
GMC SIERRA 2500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2018 350000 EQUIPMENT
GMC SIERRA DENALI 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2018 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2018 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC TERRAIN 2018 080000 FUEL SYSTEM, DIESEL
GMC TERRAIN 2018 080000 FUEL SYSTEM, DIESEL
GMC TERRAIN 2018 350000 EQUIPMENT
GMC TERRAIN 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC CANYON 2017 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2017 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2017 350000 EQUIPMENT
GMC CANYON 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET COLORADO 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2017 350000 EQUIPMENT
CHEVROLET COLORADO 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CRUZE 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2017 350000 EQUIPMENT
CHEVROLET CRUZE 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2017 350000 EQUIPMENT
CHEVROLET EXPRESS 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2017 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2017 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2017 350000 EQUIPMENT
GMC SAVANA 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2017 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2017 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2017 350000 EQUIPMENT
GMC SIERRA 1500 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2017 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2017 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2017 350000 EQUIPMENT
GMC SIERRA 2500 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2017 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2017 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2017 350000 EQUIPMENT
GMC SIERRA DENALI 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2017 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2017 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC CANYON 2016 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2016 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2016 350000 EQUIPMENT
GMC CANYON 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET COLORADO 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2016 350000 EQUIPMENT
CHEVROLET COLORADO 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CRUZE 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2016 350000 EQUIPMENT
CHEVROLET CRUZE 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2016 350000 EQUIPMENT
CHEVROLET EXPRESS 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2016 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2016 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2016 350000 EQUIPMENT
GMC SAVANA 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2016 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2016 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2016 350000 EQUIPMENT
GMC SIERRA 1500 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2016 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2016 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2016 350000 EQUIPMENT
GMC SIERRA 2500 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2016 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2016 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2016 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2016 350000 EQUIPMENT
GMC SIERRA DENALI 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2016 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2016 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CRUZE 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2015 350000 EQUIPMENT
CHEVROLET CRUZE 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2015 350000 EQUIPMENT
CHEVROLET EXPRESS 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2015 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2015 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2015 350000 EQUIPMENT
GMC SAVANA 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2015 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2015 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2015 350000 EQUIPMENT
GMC SIERRA 1500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2015 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2015 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2015 350000 EQUIPMENT
GMC SIERRA 2500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2015 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2015 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2015 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2015 350000 EQUIPMENT
GMC SIERRA DENALI 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2015 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2015 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CRUZE 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET CRUZE 2014 350000 EQUIPMENT
CHEVROLET CRUZE 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2014 350000 EQUIPMENT
CHEVROLET EXPRESS 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2014 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2014 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2014 350000 EQUIPMENT
GMC SAVANA 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2014 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2014 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2014 350000 EQUIPMENT
GMC SIERRA 1500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2014 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2014 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2014 350000 EQUIPMENT
GMC SIERRA 2500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2014 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2014 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2014 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2014 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2013 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2013 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2013 350000 EQUIPMENT
CHEVROLET EXPRESS 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2013 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2013 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2013 350000 EQUIPMENT
GMC SAVANA 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2013 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2013 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2013 350000 EQUIPMENT
GMC SIERRA 1500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2013 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2013 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2013 350000 EQUIPMENT
GMC SIERRA 2500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2013 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2013 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2013 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2013 350000 EQUIPMENT
GMC SIERRA DENALI 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2013 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2013 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2013 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2013 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2013 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2013 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2013 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2012 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2012 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2012 350000 EQUIPMENT
CHEVROLET EXPRESS 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2012 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2012 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2012 350000 EQUIPMENT
GMC SAVANA 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2012 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2012 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2012 350000 EQUIPMENT
GMC SIERRA 1500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2012 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2012 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2012 350000 EQUIPMENT
GMC SIERRA 2500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2012 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2012 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2012 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2012 350000 EQUIPMENT
GMC SIERRA DENALI 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2012 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2012 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2012 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2012 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2012 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2012 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2012 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2011 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2011 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2011 350000 EQUIPMENT
CHEVROLET EXPRESS 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2011 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2011 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2011 350000 EQUIPMENT
GMC SAVANA 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2011 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2011 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2011 350000 EQUIPMENT
GMC SIERRA 1500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2011 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2011 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2011 350000 EQUIPMENT
GMC SIERRA 2500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2011 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2011 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2011 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2011 350000 EQUIPMENT
GMC SIERRA DENALI 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2011 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2011 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2011 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2011 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2011 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2011 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2011 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET EXPRESS 2010 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2010 080000 FUEL SYSTEM, DIESEL
CHEVROLET EXPRESS 2010 350000 EQUIPMENT
CHEVROLET EXPRESS 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SAVANA 2010 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2010 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2010 350000 EQUIPMENT
GMC SAVANA 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2010 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2010 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2010 350000 EQUIPMENT
GMC SIERRA 1500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2010 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2010 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2010 350000 EQUIPMENT
GMC SIERRA 2500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 3500 2010 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2010 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2010 080000 FUEL SYSTEM, DIESEL
GMC SIERRA DENALI 2010 350000 EQUIPMENT
GMC SIERRA DENALI 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2010 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2010 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2010 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2010 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2010 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2010 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2010 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

Related CHEVROLET Recalls

CampaignModelYearComponentSummary
MALIBU 2025 BACK OVER PREVENTION: SENSING SYSTEM:... General Motors, LLC (GM) is recalling certain 2023-2025 Chevrolet Malibu vehi...
MALIBU 2024 BACK OVER PREVENTION: SENSING SYSTEM:... General Motors, LLC (GM) is recalling certain 2023-2025 Chevrolet Malibu vehi...
MALIBU 2023 BACK OVER PREVENTION: SENSING SYSTEM:... General Motors, LLC (GM) is recalling certain 2023-2025 Chevrolet Malibu vehi...
CORVETTE COUPE 2026 EXTERIOR LIGHTING:LIGHTING CONTROL MO... General Motors, LLC (GM) is recalling certain 2026 Chevrolet Corvette ZR1X Co...
CORVETTE COUPE 2026 EXTERIOR LIGHTING:TURN SIGNAL General Motors, LLC (GM) is recalling certain 2026 Chevrolet Corvette ZR1X Co...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CHEVROLET dealer. Bring this bulletin ID (19NA237) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.